synapsecns/sdk | Build 1961918416 | src/bridge/bridge.ts | Coveralls

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import {toLower} from "lodash-es";

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import {

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    ChainId,

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    isTerraChainId

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}  from "@chainid";

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import {Networks} from "@networks";

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import {executePopulatedTransaction, rejectPromise} from "@common/utils";

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import {SynapseContracts} from "@common/synapse_contracts";

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import * as SynapseEntities from "@entities";

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import type {ID}             from "@internal/distinct";

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import {SwapType}            from "@internal/swaptype";

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import {TerraSignerWrapper, tokenSwitch, validateTerraAddress} from "@internal/utils";

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import {

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    terraRpcProvider,

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    rpcProviderForChain,

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} from "@internal/rpcproviders";

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import type {

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    BridgeConfigV3Contract,

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    GenericZapBridgeContract,

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    L1BridgeZapContract,

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    SynapseBridgeContract

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} from "@contracts";

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import {Tokens}    from "@tokens";

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import {TokenSwap} from "@tokenswap";

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import {BaseToken, type Token, WrappedToken} from "@token";

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import type {GenericSigner, GenericTxnRequest, GenericTxnResponse, NumberMap} from "@common/types";

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import {GasUtils}    from "./gasutils";

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import {

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    BridgeUtils,

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    CanBridgeError

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} from "./bridgeutils";

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import {ERC20, MAX_APPROVAL_AMOUNT} from "./erc20";

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import {Zero}        from "@ethersproject/constants";

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import {isAddress}   from "@ethersproject/address";

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import {BigNumber, BigNumberish} from "@ethersproject/bignumber";

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import {

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    Signer as EthersSigner

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} from "@ethersproject/abstract-signer";

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import type {Provider} from "@ethersproject/providers";

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import type {ContractTransaction, PopulatedTransaction} from "@ethersproject/contracts";

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import {

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    MsgExecuteContract,

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    LCDClient,

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    Wallet as TerraWallet,

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    BlockTxBroadcastResult

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} from "@terra-money/terra.js";

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import bech32 from "bech32";

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/**

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 * Bridge provides a wrapper around common Synapse Bridge interactions, such as output estimation, checking supported swaps/bridges,

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 * and most importantly, executing Bridge transactions.

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*/

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export namespace Bridge {

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    const TEN = BigNumber.from(10);

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    type CanBridgeResult = {

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        canBridge: boolean;

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        error?:    Error | string;

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        amount?:   BigNumberish;

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    export type CheckCanBridgeResult = [boolean, BigNumber];

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    export type BridgeOutputEstimate = {

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        amountToReceive: BigNumber,

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        bridgeFee:       BigNumber,

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/**

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     * @param {Token} tokenFrom {@link Token} user will send to the bridge on the source chain

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     * @param {Token} tokenTo {@link Token} user will receive from the bridge on the destination chain

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     * @param {number} chainIdTo Chain ID of the destination chain

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     * @param {BigNumber} amountFrom not necessarily used by this interface, and overriden in BridgeParamsWithAmounts.

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*/

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    export interface BridgeParams {

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        tokenFrom:   Token,

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        tokenTo:     Token

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        chainIdTo:   number,

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        amountFrom?: BigNumber,

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/**

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     * @param {BigNumber} amountFrom Amount of tokenFrom (denoted in wei) that the user will send to the bridge on the source chain.

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     * @param {BigNumber} amountTo Amount of tokenTo (denoted in wei) that the user will receive from the bridge on the destination chain.

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     * @param {string} addressTo Optional, user can provide an address other than the one retrieved from signer to receive tokens

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     * on the destination chain.

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*/

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    export interface BridgeTransactionParams extends BridgeParams {

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        amountFrom: BigNumber,

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        amountTo:   BigNumber,

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        addressTo?: string

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    type EasyArgsCheck = {

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        isEasy:   boolean,

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        castArgs: BridgeUtils.BridgeTxParams,

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        txn?:     Promise<PopulatedTransaction>,

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    type BridgeTokenArgs = {

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        fromChainTokens: Token[],

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        toChainTokens:   Token[],

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        tokenFrom:       Token,

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        tokenTo:         Token,

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        tokenIndexFrom:  number,

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        tokenIndexTo:    number,

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    type CanBridgeArgs = {

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        address?: string;

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        signer?:  EthersSigner;

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        amount:   BigNumberish;

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        token:    Token;

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    type CheckCanBridgeParams = {

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        address: string,

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        token:   Token,

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        amount:  BigNumberish,

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/**

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     * SynapseBridge is a wrapper around any Synapse Bridge contract which exists on chains supported by the Synapse Protocol.

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*/

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    export class SynapseBridge {

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        protected network: Networks.Network;

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        protected chainId: number;

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        protected _provider: Provider | LCDClient;

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        private readonly bridgeAddress: string;

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        private readonly bridgeInstance:           SynapseBridgeContract;

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        private readonly networkZapBridgeInstance: GenericZapBridgeContract;

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        private readonly isTerra:      boolean;

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        private readonly isL2Zap:      boolean;

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        private readonly isL2ETHChain: boolean;

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        private readonly zapBridgeAddress: string;

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        private readonly bridgeConfigInstance: BridgeConfigV3Contract = SynapseEntities.BridgeConfigV3ContractInstance();

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        private readonly zapBridgeInstance: L1BridgeZapContract = SynapseEntities.L1BridgeZapContractInstance({

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            chainId: ChainId.ETH,

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            signerOrProvider: rpcProviderForChain(ChainId.ETH),

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});

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        readonly requiredConfirmations: number;

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        constructor(args: {

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            network: Networks.Network | number,

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            provider?: Provider

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        }) {

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            let {network, provider} = args;

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            this.network = network instanceof Networks.Network ? network : Networks.fromChainId(network);

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            this.chainId = this.network.chainId;

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            this.requiredConfirmations = getRequiredConfirmationsForBridge(this.network);

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            this.isTerra = this.chainId === ChainId.TERRA;

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            this.isL2Zap = this.network.zapIsL2BridgeZap;

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            this.isL2ETHChain = BridgeUtils.isL2ETHChain(this.chainId);

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            this._provider = provider ?? (this.isTerra

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                ? terraRpcProvider(this.chainId)

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                : rpcProviderForChain(this.chainId)

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);

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            const contractAddrs = SynapseContracts.contractsForChainId(this.chainId);

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            this.bridgeAddress    = contractAddrs.bridgeAddress;

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            this.zapBridgeAddress = contractAddrs.bridgeZapAddress;

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            if (!this.isTerra) {

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                const factoryParams = {chainId: this.chainId, signerOrProvider: (this._provider as Provider)};

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                this.bridgeInstance = SynapseEntities.SynapseBridgeContractInstance(factoryParams);

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                if (this.zapBridgeAddress && this.zapBridgeAddress !== "") {

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                    this.networkZapBridgeInstance = SynapseEntities.GenericZapBridgeContractInstance(factoryParams);

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        private get provider(): Provider {

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            return this._provider as Provider

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        private get terraProvider(): LCDClient {

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            return this._provider as LCDClient

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        bridgeVersion(): Promise<BigNumber> {

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            if (this.isTerra) {

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                return Promise.resolve(BigNumber.from(6))

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            return this.bridgeInstance.bridgeVersion()

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        WETH_ADDRESS(): Promise<string> {

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            if (this.isTerra) {

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                return Promise.resolve("0x0000000000000000000000000000000000000000")

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            return this.bridgeInstance.WETH_ADDRESS()

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/**

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         * Returns whether a swap/bridge from this Bridge's chain to another chain between two tokens

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         * is supported.

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         * @param {Token} args.tokenFrom {@link Token} user will send to the bridge

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         * @param {Token} args.tokenTo {@link Token} user will receive from the bridge on the destination chain

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         * @param {number} args.chainIdTo Chain ID of the destination chain

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         * @return boolean value denoting whether the input params constitute a valid swap/bridge, along with a

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         * string value denoting the reason for an unsupported swap, if applicable.

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*/

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        swapSupported(args: {

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            tokenFrom: Token,

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            tokenTo:   Token

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            chainIdTo: number,

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        }): [boolean, string] {

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            const {swapSupported, reasonNotSupported} = TokenSwap.bridgeSwapSupported({...args, chainIdFrom: this.chainId});

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            return [swapSupported, reasonNotSupported?.reason || ""]

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/**

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         * Returns the estimated output of a given token on the destination chain were a user to send

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         * some amount of another given token on the source chain.

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         * @param {BridgeParams} args Parameters for the output estimation.

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         * @return {Promise<BridgeOutputEstimate>} Object containing the estimated output of args.tokenTo, as well

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         * as the estimated fee to be taken by the bridge. Note that the estimated output already accounts for the

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         * bridge fee, so the bridge fee is entirely for user-facing purposes. Do not use it for calculations.

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*/

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        async estimateBridgeTokenOutput(args: BridgeParams): Promise<BridgeOutputEstimate> {

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            return this.checkSwapSupported(args)

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                .then(() => this.calculateBridgeRate(args))

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                .catch(rejectPromise)

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/**

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         * Returns a populated transaction for initiating a token bridge between this Bridge (the source chain) and the bridge contract on the destination chain.

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         * Note that this function **does not** send a signed transaction.

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         * @param {BridgeTransactionParams} args Parameters for the bridge transaction

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         * @return {Promise<PopulatedTransaction>} Populated transaction instance which can be sent via ones choice

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         * of web3/ethers/etc.

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*/

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        async buildBridgeTokenTransaction(args: BridgeTransactionParams): Promise<PopulatedTransaction | MsgExecuteContract> {

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            const

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                {addressTo} = args,

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                tokenArgs = this.makeBridgeTokenArgs(args),

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                {tokenFrom, tokenTo} = tokenArgs;

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            if ((!addressTo) || addressTo === "") {

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                return rejectPromise(

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                    new CanBridgeError("BridgeTransactionParams.addressTo cannot be empty string or undefined")

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            if (args.chainIdTo === ChainId.TERRA && !validateTerraAddress(args.addressTo)) {

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                return rejectPromise(

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                    new CanBridgeError(`${args.addressTo} passed as BridgeTransactionParams.addressTo is not a valid Terra address`)

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            } else if (args.chainIdTo !== ChainId.TERRA && !isAddress(args.addressTo)) {

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                return rejectPromise(

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                    new CanBridgeError(`${args.addressTo} passed as BridgeTransactionParams.addressTo is not a valid EVM address`)

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            args = {...args, tokenFrom, tokenTo};

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            let newTxn: Promise<PopulatedTransaction>;

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            if (args.tokenFrom.isEqual(Tokens.UST)) {

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                if (this.isTerra) {

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                    return this.buildTerraBridgeTxn(args)

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                const redeemArgs: [BigNumberish, string, BigNumberish] = [

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                    args.chainIdTo,

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                    Tokens.UST.address(this.chainId),

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                    args.amountFrom

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];

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                if (args.chainIdTo === ChainId.TERRA) {

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                    newTxn = this.bridgeInstance

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                        .populateTransaction

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                        .redeemV2(

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                            bech32.decode(args.addressTo).words,

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                            ...redeemArgs

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);

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                } else {

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                    newTxn = this.bridgeInstance

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                        .populateTransaction

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                        .redeem(

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                            args.addressTo,

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                            ...redeemArgs

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);

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            } else {

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                newTxn = this.chainId === ChainId.ETH

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                    ? this.buildETHMainnetBridgeTxn(args, tokenArgs)

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                    : this.buildL2BridgeTxn(args, tokenArgs);

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            return newTxn

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                .then(txn =>

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                    GasUtils.populateGasParams(this.chainId, txn, "bridge")

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/**

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         * Starts the Bridge process between this Bridge (the source chain) and the bridge contract on the destination chain.

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         * Note that this function **does** send a signed transaction.

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         * @param {BridgeTransactionParams} args Parameters for the bridge transaction.

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         * @param {EthersSigner} signer Some instance which implements the Ethersjs {@link EthersSigner} interface.

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         * @param {boolean} callStatic (Optional, default: false) if true, uses provider.callStatic instead of actually sending the signed transaction.

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         * @return {Promise<ContractTransaction>}

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*/

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        async executeBridgeTokenTransaction(

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            args:       BridgeTransactionParams,

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            signer:     EthersSigner | TerraWallet,

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            callStatic: boolean=false

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        ): Promise<ContractTransaction | BlockTxBroadcastResult> {

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            try {

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                await this.checkSwapSupported(args);

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                /* c8 ignore next 2 */

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                return rejectPromise(e);

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            const {tokenFrom, amountFrom, addressTo} = args;

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            let txSigner: GenericSigner;

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            let signerAddress: string;

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            if (signer instanceof TerraWallet) {

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                txSigner = new TerraSignerWrapper(signer);

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            } else {

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                txSigner = signer;

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            signerAddress = await txSigner.getAddress();

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            let checkArgs = {token: tokenFrom, amount: amountFrom, address: toLower(signerAddress)};

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            const sendTxn = (txn: GenericTxnRequest): Promise<GenericTxnResponse> => {

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            return this.checkCanBridge(checkArgs)

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                .then(({canBridge, error, amount}) =>

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                    canBridge

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                        : rejectPromise(new CanBridgeError(error, amount))

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/**

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         * Builds an ethers PopulatedTransaction instance for an ERC20 Approve call,

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         * approving some amount of a given token to be spent by the Synapse Bridge on its chain.

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         * The returned PopulatedTransaction must then be passed to the user via Web3 or some other

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         * framework so they can ultimately send the transaction.

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         * Should ALWAYS be called before performing any bridge transactions to ensure they don't fail.

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         * @param {Object} args

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         * @param {Token|string} args.token {@link Token} instance or valid on-chain address of the token the user will be sending

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         * to the bridge on the source chain.

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         * @param {BigNumberish} args.amount Optional, a specific amount of args.token to approve. By default, this function

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         * builds an Approve call using an "infinite" approval amount.

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         * @return {Promise<PopulatedTransaction>} Populated transaction instance which can be sent via ones choice

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         * of web3/ethers/etc.

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*/

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        async buildApproveTransaction(args: {

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            token:   Token | string,

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            amount?: BigNumberish

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        }): Promise<PopulatedTransaction> {

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            const [approveArgs, tokenAddress] = this.buildERC20ApproveArgs(args);

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            return ERC20.buildApproveTransaction(approveArgs, {tokenAddress, chainId: this.chainId})

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/**

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         * Builds and executes an ERC20 Approve call,

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         * approving some amount of a given token to be spent by the Synapse Bridge on its chain.

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         * The returned PopulatedTransaction must then be passed to the user via Web3 or some other

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         * framework so they can ultimately send the transaction.

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         * Should ALWAYS be called before performing any bridge transactions to ensure they don't fail.

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         * @param {Object} args

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         * @param {Token|string} args.token {@link Token} instance or valid on-chain address of the token the user will be sending

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         * to the bridge on the source chain.

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         * @param {BigNumberish} args.amount Optional, a specific amount of args.token to approve. By default, this function

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         * @param {EthersSigner} signer Valid ethers Signer instance for building a fully and properly populated

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         * transaction.

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*/

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        async executeApproveTransaction(

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            args:       {token: Token | string, amount?: BigNumberish},

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            signer:     EthersSigner,

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        ): Promise<ContractTransaction> {

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            const

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                [approveArgs, tokenAddress] = this.buildERC20ApproveArgs(args),

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                tokenParams = {tokenAddress, chainId: this.chainId};

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            return ERC20.approve(approveArgs, tokenParams, signer)

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        async checkCanBridge(args: CanBridgeArgs): Promise<CanBridgeResult> {

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            const {token, signer, address} = args;

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            let signerAddress: string;

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438

            } else if (address && address !== "") {

28✔

439

                signerAddress = address;

28✔

440

28✔

441

28✔

442

            const checkArgs = {...args, address: signerAddress};

28✔

443

28✔

444

            const

28✔

445

                isTerraTx:          boolean = this.isTerra && token.isEqual(Tokens.UST),

28✔

446

                isGasTokenTransfer: boolean = (this.network.chainCurrency === token.symbol) && BridgeUtils.chainSupportsGasToken(this.chainId);

28✔

447

28✔

448

            if (isTerraTx) {

28✔

449

                return this.checkTerraUSTBalance(checkArgs);

4✔

450

4✔

451

28✔

452

            let hasBalanceRes: Promise<CanBridgeResult> = isGasTokenTransfer

28✔

453

                ? this.checkGasTokenBalance(checkArgs)

28✔

454

                : this.checkERC20Balance(checkArgs);

28✔

455

28✔

456

            return isGasTokenTransfer

28✔

457

                ? hasBalanceRes

28✔

458

                : this.checkNeedsApprove(checkArgs)

28✔

459

                    .then(approveRes => Bridge.SynapseBridge.resolveApproveFunc(approveRes, hasBalanceRes, token))

10✔

460

                    .catch(rejectPromise)

10✔

461

28✔

462

12✔

463

        private async calculateBridgeRate(args: BridgeParams): Promise<BridgeOutputEstimate> {

12✔

464

            let {chainIdTo, amountFrom} = args;

174✔

465

174✔

466

            const toChainZapParams = {chainId: chainIdTo, signerOrProvider: rpcProviderForChain(chainIdTo)};

174✔

467

            let toChainZap: GenericZapBridgeContract;

174✔

468

174✔

469

            if (!isTerraChainId(chainIdTo)) {

174✔

470

                toChainZap = SynapseEntities.GenericZapBridgeContractInstance(toChainZapParams);

168✔

471

168✔

472

174✔

473

            const {

174✔

474

                tokenFrom, tokenTo,

174✔

475

                tokenIndexFrom, tokenIndexTo,

174✔

476

                fromChainTokens

174✔

477

            } = this.makeBridgeTokenArgs(args);

174✔

478

174✔

479

174✔

480

            let {intermediateToken, bridgeConfigIntermediateToken} = TokenSwap.intermediateTokens(chainIdTo, tokenFrom);

174✔

481

174✔

482

            const involvesUST = [tokenFrom.swapType, tokenTo.swapType].includes(SwapType.UST);

174✔

483

174✔

484

            const

174✔

485

                intermediateTokenAddr = toLower(bridgeConfigIntermediateToken.address(chainIdTo)),

174✔

486

                multiplier            = involvesUST ? TEN.pow(12) : 1,

174✔

487

                amtFrom               = involvesUST ? amountFrom : TEN.pow(18-tokenFrom.decimals(this.chainId));

174✔

488

174✔

489

            const bridgeFeeRequest: Promise<BigNumber> = this.bridgeConfigInstance["calculateSwapFee(string,uint256,uint256)"](

174✔

490

                intermediateTokenAddr,

174✔

491

                chainIdTo,

174✔

492

                amtFrom

174✔

493

);

174✔

494

174✔

495

            const checkEthy = (c1: number, c2: number, t: Token): boolean =>

174✔

496

                c1 === ChainId.ETH && BridgeUtils.isL2ETHChain(c2) && t.swapType === SwapType.ETH

348✔

497

174✔

498

            const

174✔

499

                ethToEth:   boolean = checkEthy(this.chainId, chainIdTo,    tokenTo),

174✔

500

                ethFromEth: boolean = checkEthy(chainIdTo,    this.chainId, tokenFrom);

174✔

501

174✔

502

            let amountToReceive_from_prom: Promise<BigNumber>;

174✔

503

            switch (true) {

174✔

504

                case amountFrom.eq(Zero):

174✔

505

                    amountToReceive_from_prom = Promise.resolve(Zero);

8✔

506

                    break;

8✔

507

                case ethToEth:

174✔

508

                case Tokens.isMintBurnToken(tokenFrom):

174✔

509

                case tokenFrom.isWrappedToken:

174✔

510

                    amountToReceive_from_prom = Promise.resolve(amountFrom);

110✔

511

                    break;

110✔

512

                case this.chainId === ChainId.ETH:

174✔

513

                    let liquidityAmounts = fromChainTokens.map((t) => tokenFrom.isEqual(t) ? amountFrom : Zero);

8✔

514

                    amountToReceive_from_prom = this.zapBridgeInstance.calculateTokenAmount(liquidityAmounts, true);

8✔

515

8✔

516

                    break;

8✔

517

                default:

174✔

518

                    amountToReceive_from_prom = BridgeUtils.calculateSwapL2Zap(

48✔

519

                        this.networkZapBridgeInstance,

48✔

520

                        intermediateToken.address(this.chainId),

48✔

521

                        tokenIndexFrom,

48✔

522

0,

48✔

523

                        amountFrom

48✔

524

);

48✔

525

174✔

526

174✔

527

            let amountToReceive_from = await amountToReceive_from_prom;

174✔

528

174✔

529

            let bridgeFee: BigNumber;

174✔

530

            /* c8 ignore start */

2✔

531

            try {

2✔

532

                bridgeFee = await bridgeFeeRequest;

2✔

533

                if (bridgeFee === null) {

2✔

534

                    console.error("calculateSwapFee returned null");

2✔

535

                    return rejectPromise("calculateSwapFee returned null")

2✔

536

2✔

537

            } catch (e) {

2✔

538

                console.error(`Error in bridge fee request: ${e}`);

2✔

539

                return rejectPromise(e)

2✔

540

2✔

541

            /* c8 ignore stop */

2✔

542

174✔

543

            amountToReceive_from = BridgeUtils.subBigNumSafe(amountToReceive_from, bridgeFee);

174✔

544

174✔

545

            let amountToReceive_to_prom: Promise<BigNumber>;

174✔

546

            switch (true) {

174✔

547

                case amountToReceive_from.isZero():

174✔

548

                    amountToReceive_to_prom = Promise.resolve(Zero);

12✔

549

                    break;

12✔

550

                case ethFromEth:

174✔

551

                case Tokens.isMintBurnToken(tokenTo):

174✔

552

                case tokenTo.isWrappedToken:

174✔

553

                    amountToReceive_to_prom = Promise.resolve(amountToReceive_from);

100✔

554

                    break;

100✔

555

                case chainIdTo === ChainId.ETH:

174✔

556

                    amountToReceive_to_prom = (toChainZap as L1BridgeZapContract)

6✔

557

                        .calculateRemoveLiquidityOneToken(amountToReceive_from, tokenIndexTo);

6✔

558

6✔

559

                    break;

6✔

560

                default:

174✔

561

                    amountToReceive_to_prom = BridgeUtils.calculateSwapL2Zap(

56✔

562

                        toChainZap,

56✔

563

                        intermediateToken.address(chainIdTo),

56✔

564

0,

56✔

565

                        tokenIndexTo,

56✔

566

                        amountToReceive_from

56✔

567

);

56✔

568

174✔

569

174✔

570

            let amountToReceive: BigNumber;

174✔

571

            try {

174✔

572

                amountToReceive = await Promise.resolve(amountToReceive_to_prom)

174✔

574

                /* c8 ignore next */

2✔

575

                return rejectPromise(err)

2✔

577

174✔

578

            return {

174✔

579

                amountToReceive,

174✔

581

174✔

582

174✔

583

12✔

584

        private buildETHMainnetBridgeTxn(

12✔

585

            args:      BridgeTransactionParams,

42✔

586

            tokenArgs: BridgeTokenArgs

42✔

587

        ): Promise<PopulatedTransaction> {

42✔

588

            const

42✔

589

                {addressTo, chainIdTo, amountFrom, amountTo} = args,

42✔

590

                zapBridge = SynapseEntities.L1BridgeZapContractInstance({

42✔

591

                    chainId: this.chainId,

42✔

592

                    signerOrProvider: this.provider

42✔

593

});

42✔

594

42✔

595

let

42✔

596

                easyRedeems:    ID[] = [Tokens.SYN.id],

42✔

597

                easyDeposits:   ID[] = [Tokens.HIGH.id, Tokens.DOG.id, Tokens.FRAX.id],

42✔

598

                easyDepositETH: ID[] = [Tokens.NETH.id];

42✔

599

42✔

600

            let {castArgs, isEasy, txn} = this.checkEasyArgs(args, zapBridge, easyDeposits, easyRedeems, easyDepositETH);

42✔

601

            if (isEasy && txn) {

42✔

602

                return txn

12✔

603

12✔

604

30✔

605

            const liquidityAmounts = tokenArgs.fromChainTokens.map(t =>

30✔

606

                    args.tokenFrom.isEqual(t)

58✔

607

                        ? amountFrom

58✔

608

                        : Zero

58✔

609

);

30✔

610

30✔

611

            const {

30✔

612

                transactionDeadline,

30✔

613

                bridgeTransactionDeadline,

30✔

614

                minToSwapDestFromOrigin,

30✔

615

                minToSwapDest,

30✔

616

                minToSwapOriginMediumSlippage,

30✔

617

                minToSwapDestFromOriginMediumSlippage,

30✔

618

            } = BridgeUtils.getSlippages(amountFrom, amountTo);

30✔

619

30✔

620

            if (args.tokenTo.isEqual(Tokens.NUSD)) {

38✔

621

                if (args.tokenFrom.isEqual(Tokens.NUSD)) {

4✔

622

                    const bridgeDepositArgs = BridgeUtils.makeEasyParams(

2✔

623

                        args as BridgeUtils.BridgeTxParams,

2✔

624

                        this.chainId,

2✔

625

                        args.tokenTo

2✔

626

);

2✔

627

2✔

628

                    return zapBridge

2✔

629

                        .populateTransaction

2✔

630

                        .deposit(...bridgeDepositArgs)

2✔

631

                } else {

2✔

632

                    return zapBridge.populateTransaction.zapAndDeposit(

2✔

633

                        addressTo,

2✔

634

                        chainIdTo,

2✔

635

                        Tokens.NUSD.address(this.chainId),

2✔

636

                        liquidityAmounts,

2✔

637

                        minToSwapDest,

2✔

638

                        transactionDeadline,

2✔

639

2✔

640

2✔

641

            } else {

38✔

642

                if (BridgeUtils.isETHLikeToken(args.tokenTo) || args.tokenTo.isEqual(Tokens.WETH)) {

24✔

643

                    return zapBridge.populateTransaction.depositETHAndSwap(

10✔

644

                        ...BridgeUtils.depositETHParams(castArgs),

10✔

645

                        0, // nusd tokenindex,

10✔

646

                        tokenArgs.tokenIndexTo,

10✔

647

                        minToSwapDestFromOrigin, // minDy

10✔

648

                        bridgeTransactionDeadline,

10✔

649

                        BridgeUtils.makeOverrides(amountFrom, true)

10✔

650

10✔

651

                } else if (args.tokenFrom.isEqual(Tokens.NUSD)) {

24✔

652

                    return zapBridge.populateTransaction.depositAndSwap(

4✔

653

                        addressTo,

4✔

654

                        chainIdTo,

4✔

655

                        Tokens.NUSD.address(this.chainId),

4✔

656

                        amountFrom,

4✔

657

0,

4✔

658

                        tokenArgs.tokenIndexTo,

4✔

659

                        minToSwapDestFromOriginMediumSlippage,

4✔

660

                        bridgeTransactionDeadline

4✔

661

4✔

662

                } else {

14✔

663

                    return zapBridge.populateTransaction.zapAndDepositAndSwap(

10✔

664

                        addressTo,

10✔

665

                        chainIdTo,

10✔

666

                        Tokens.NUSD.address(this.chainId),

10✔

667

                        liquidityAmounts,

10✔

668

                        minToSwapOriginMediumSlippage, // minToSwapOrigin,

10✔

669

                        transactionDeadline,

10✔

670

0,

10✔

671

                        tokenArgs.tokenIndexTo,

10✔

672

                        minToSwapDestFromOriginMediumSlippage, //, minToSwapDestFromOrigin, // minDy

10✔

673

                        bridgeTransactionDeadline,

10✔

674

10✔

675

10✔

676

24✔

677

42✔

678

12✔

679

        private buildL2BridgeTxn(

12✔

680

            args: BridgeTransactionParams,

118✔

681

            tokenArgs: BridgeTokenArgs

118✔

682

        ): Promise<PopulatedTransaction> {

118✔

683

            const

118✔

684

                {chainIdTo, amountFrom, amountTo} = args,

118✔

685

                zapBridge = SynapseEntities.L2BridgeZapContractInstance({

118✔

686

                    chainId: this.chainId,

118✔

687

                    signerOrProvider: this.provider

118✔

688

});

118✔

689

118✔

690

            tokenArgs.tokenFrom = tokenArgs.tokenFrom.isEqual(Tokens.AVWETH)

118✔

692

                : tokenArgs.tokenFrom;

118✔

693

118✔

694

let

118✔

695

                easyDeposits:   ID[] = [],

118✔

696

                easyDepositETH: ID[] = [],

118✔

697

                easyRedeems:    ID[] = [

118✔

698

                    Tokens.SYN.id, Tokens.HIGH.id,

118✔

699

                    Tokens.DOG.id, Tokens.FRAX.id

118✔

700

];

118✔

701

118✔

702

            BridgeUtils.DepositIfChainTokens.forEach((args) => {

118✔

703

                let {chainId, tokens, depositEth, altChainId} = args;

590✔

704

590✔

705

let

590✔

706

                    hasAltChain = typeof altChainId !== 'undefined',

590✔

707

                    tokenHashes = tokens.map((t) => t.id);

590✔

708

590✔

709

                if (this.chainId === chainId) {

590✔

710

                    depositEth

58✔

711

                        ? easyDepositETH.push(...tokenHashes)

58✔

712

                        : easyDeposits.push(...tokenHashes);

58✔

713

                } else {

590✔

714

                    if (hasAltChain) {

532✔

715

                        if (this.chainId === altChainId) easyRedeems.push(...tokenHashes);

202✔

716

                    } else {

532✔

717

                        easyRedeems.push(...tokenHashes);

330✔

718

330✔

719

532✔

720

})

118✔

721

118✔

722

            let {castArgs, isEasy, txn} = this.checkEasyArgs(args, zapBridge, easyDeposits, easyRedeems, easyDepositETH);

118✔

723

            if (isEasy && txn) {

118✔

724

                return txn

26✔

725

26✔

726

118✔

727

            const {

118✔

728

                transactionDeadline,

118✔

729

                bridgeTransactionDeadline,

118✔

730

                minToSwapOriginHighSlippage,

118✔

731

                minToSwapDestFromOriginHighSlippage,

118✔

732

                minToSwapDest,

118✔

733

            } = BridgeUtils.getSlippages(amountFrom, amountTo);

118✔

734

118✔

735

            const easyRedeemAndSwap = (baseToken: BaseToken): Promise<PopulatedTransaction> =>

118✔

736

                zapBridge

6✔

737

                    .populateTransaction

6✔

738

                    .redeemAndSwap(

6✔

739

                        ...BridgeUtils.makeEasyParams(castArgs, this.chainId, baseToken),

6✔

740

0,

6✔

741

                        tokenArgs.tokenIndexTo,

6✔

742

                        minToSwapDest,

6✔

743

                        transactionDeadline,

6✔

744

118✔

745

118✔

746

            const easySwapAndRedeemAndSwap = (baseToken: BaseToken): Promise<PopulatedTransaction> =>

118✔

747

                zapBridge

12✔

748

                    .populateTransaction

12✔

749

                    .swapAndRedeemAndSwap(

12✔

750

                        ...BridgeUtils.makeEasySubParams(castArgs, this.chainId, baseToken),

12✔

751

                        tokenArgs.tokenIndexFrom,

12✔

752

0,

12✔

753

                        amountFrom,

12✔

754

                        minToSwapOriginHighSlippage,

12✔

755

                        transactionDeadline,

12✔

756

0,

12✔

757

                        tokenArgs.tokenIndexTo,

12✔

758

                        minToSwapDestFromOriginHighSlippage, // swapMinAmount

12✔

759

                        bridgeTransactionDeadline, // toSwapDeadline, // swapDeadline

12✔

760

                        BridgeUtils.makeOverrides(amountFrom, false)

12✔

761

118✔

762

118✔

763

            switch (tokenSwitch(args.tokenTo)) {

118✔

764

                case Tokens.NUSD:

118✔

765

                    if (args.tokenFrom.isEqual(Tokens.NUSD)) {

18✔

766

                        return zapBridge

4✔

767

                            .populateTransaction

4✔

768

                            .redeem(...BridgeUtils.makeEasyParams(castArgs, this.chainId, Tokens.NUSD))

4✔

769

                    } else {

18✔

770

                        return zapBridge

14✔

771

                            .populateTransaction

14✔

772

                            .swapAndRedeem(

14✔

773

                                ...BridgeUtils.makeEasySubParams(castArgs, this.chainId, Tokens.NUSD),

14✔

774

                                tokenArgs.tokenIndexFrom,

14✔

775

0,

14✔

776

                                amountFrom,

14✔

777

                                minToSwapOriginHighSlippage,

14✔

778

                                transactionDeadline

14✔

779

14✔

780

14✔

781

                case Tokens.GMX:

118✔

782

                    let params = BridgeUtils.makeEasyParams(castArgs, this.chainId, Tokens.GMX);

4✔

783

                    let [addrTo, chainTo,,amount] = params;

4✔

784

4✔

785

                    return this.chainId === ChainId.ARBITRUM

4✔

786

                        ? zapBridge.populateTransaction.deposit(...params)

4✔

787

                        : this.bridgeInstance

4✔

788

                            .populateTransaction

2✔

789

                            .redeem(

2✔

790

                                addrTo,

2✔

791

                                chainTo,

2✔

792

                                Tokens.GMX.wrapperAddress(this.chainId),

2✔

793

                                amount

2✔

794

4✔

795

                default:

118✔

796

                    if (chainIdTo === ChainId.ETH) {

64✔

797

                        if (this.isL2ETHChain) {

22✔

798

                            if (args.tokenFrom.isEqual(Tokens.NETH)) {

18✔

799

                                return zapBridge

6✔

800

                                    .populateTransaction

6✔

801

                                    .redeem(...BridgeUtils.makeEasyParams(castArgs, this.chainId, Tokens.NETH))

6✔

802

                            } else if (BridgeUtils.isETHLikeToken(args.tokenFrom)) {

18✔

803

                                return zapBridge

6✔

804

                                    .populateTransaction

6✔

805

                                    .swapAndRedeem(

6✔

806

                                        ...BridgeUtils.makeEasySubParams(castArgs, this.chainId, Tokens.NETH),

6✔

807

                                        tokenArgs.tokenIndexFrom,

6✔

808

0,

6✔

809

                                        amountFrom,

6✔

810

                                        minToSwapOriginHighSlippage, // minToSwapOrigin, // minToSwapOriginHighSlippage,

6✔

811

                                        transactionDeadline

6✔

812

6✔

813

                            } else {

6✔

814

                                return zapBridge

6✔

815

                                    .populateTransaction

6✔

816

                                    .swapETHAndRedeem(

6✔

817

                                        ...BridgeUtils.makeEasySubParams(castArgs, this.chainId, Tokens.NETH),

6✔

818

                                        tokenArgs.tokenIndexFrom,

6✔

819

0,

6✔

820

                                        amountFrom,

6✔

821

                                        minToSwapOriginHighSlippage, // minToSwapOrigin, // minToSwapOriginHighSlippage,

6✔

822

                                        transactionDeadline,

6✔

823

                                        BridgeUtils.makeOverrides(amountFrom, true)

6✔

824

6✔

825

6✔

826

                        } else if (args.tokenFrom.isEqual(Tokens.NUSD)) {

22✔

827

                            return zapBridge

2✔

828

                                .populateTransaction

2✔

829

                                .redeemAndRemove(

2✔

830

                                    ...BridgeUtils.makeEasySubParams(castArgs, this.chainId, Tokens.NUSD),

2✔

831

                                    amountFrom,

2✔

832

                                    tokenArgs.tokenIndexTo,

2✔

833

                                    minToSwapDest,

2✔

834

                                    transactionDeadline

2✔

835

2✔

836

                        } else {

2✔

837

                            return zapBridge

2✔

838

                                .populateTransaction

2✔

839

                                .swapAndRedeemAndRemove(

2✔

840

                                    ...BridgeUtils.makeEasySubParams(castArgs, this.chainId, Tokens.NUSD),

2✔

841

                                    tokenArgs.tokenIndexFrom,

2✔

842

0,

2✔

843

                                    amountFrom,

2✔

844

                                    minToSwapOriginHighSlippage,

2✔

845

                                    transactionDeadline,

2✔

846

                                    tokenArgs.tokenIndexTo, //swapTokenIndex

2✔

847

                                    minToSwapDestFromOriginHighSlippage, // swapMinAmount

2✔

848

                                    bridgeTransactionDeadline, // toSwapDeadline, // swapDeadline

2✔

849

2✔

850

2✔

851

                    } else {

64✔

852

                        if (args.tokenFrom.isEqual(Tokens.NUSD)) {

42✔

853

                            return easyRedeemAndSwap(Tokens.NUSD)

4✔

854

                        } else if (args.tokenFrom.isEqual(Tokens.NETH)) {

42✔

855

                            return easyRedeemAndSwap(Tokens.NETH)

2✔

856

                        } else {

38✔

857

                            if (args.tokenFrom.swapType === SwapType.ETH) {

36✔

858

                                return BridgeUtils.isETHLikeToken(args.tokenFrom)

24✔

859

                                    ? zapBridge

24✔

860

                                        .populateTransaction

16✔

861

                                        .swapAndRedeemAndSwap(

16✔

862

                                            ...BridgeUtils.makeEasySubParams(castArgs, this.chainId, Tokens.NETH),

16✔

863

                                            tokenArgs.tokenIndexFrom,

16✔

864

0,

16✔

865

                                            args.amountFrom,

16✔

866

                                            minToSwapOriginHighSlippage,

16✔

867

                                            transactionDeadline,

16✔

868

0,

16✔

869

                                            tokenArgs.tokenIndexTo,

16✔

870

                                            minToSwapDestFromOriginHighSlippage,

16✔

871

                                            bridgeTransactionDeadline

16✔

872

24✔

873

                                    : zapBridge

24✔

874

                                        .populateTransaction

8✔

875

                                        .swapETHAndRedeemAndSwap(

8✔

876

                                            ...BridgeUtils.makeEasySubParams(castArgs, this.chainId, Tokens.NETH),

8✔

877

                                            tokenArgs.tokenIndexFrom,

8✔

878

0,

8✔

879

                                            amountFrom,

8✔

880

                                            minToSwapOriginHighSlippage,

8✔

881

                                            transactionDeadline,

8✔

882

0,

8✔

883

                                            tokenArgs.tokenIndexTo,

8✔

884

                                            minToSwapDestFromOriginHighSlippage,

8✔

885

                                            bridgeTransactionDeadline,

8✔

886

                                            BridgeUtils.makeOverrides(amountFrom, true)

8✔

887

24✔

888

                            } else {

36✔

889

                                return easySwapAndRedeemAndSwap(Tokens.NUSD)

12✔

890

12✔

891

36✔

892

42✔

893

118✔

894

118✔

895

12✔

896

        private buildTerraBridgeTxn({

12✔

897

            addressTo,

6✔

898

            chainIdTo,

6✔

899

            amountFrom

6✔

900

        }: BridgeTransactionParams): Promise<MsgExecuteContract> {

6✔

901

            return Promise.resolve(new MsgExecuteContract(

6✔

902

                null,

6✔

903

                this.bridgeAddress,

6✔

904

6✔

905

                    deposit: {

6✔

906

                        to_address: toLower(addressTo),

6✔

907

                        chain_id:  `${chainIdTo}`,

6✔

908

                        denom:     "uusd"

6✔

909

6✔

910

},

6✔

911

                { uusd: amountFrom.toNumber() }

6✔

912

))

6✔

913

6✔

914

12✔

915

        private makeBridgeTokenArgs(args: BridgeParams): BridgeTokenArgs {

12✔

916

            let {tokenFrom, tokenTo, chainIdTo} = args;

360✔

917

360✔

918

            let bridgeTokens: (t1: Token, t2: Token) => [Token, Token];

360✔

919

360✔

920

            switch (tokenFrom.swapType) {

360✔

921

                case SwapType.ETH:

360✔

922

                    bridgeTokens = BridgeUtils.checkReplaceTokens(Tokens.ETH, Tokens.WETH);

132✔

923

                    break;

132✔

924

                case SwapType.AVAX:

360✔

925

                    bridgeTokens = BridgeUtils.checkReplaceTokens(Tokens.AVAX, Tokens.WAVAX);

8✔

926

                    break;

8✔

927

                case SwapType.MOVR:

360✔

928

                    bridgeTokens = BridgeUtils.checkReplaceTokens(Tokens.MOVR, Tokens.WMOVR);

8✔

929

                    break;

8✔

930

                default:

360✔

931

                    bridgeTokens = (t1: Token, t2: Token) => [t1, t2];

212✔

932

360✔

933

360✔

934

            [tokenFrom, tokenTo] = bridgeTokens(tokenFrom, tokenTo);

360✔

935

360✔

936

            const

360✔

937

                [fromChainTokens, tokenIndexFrom] = BridgeUtils.makeTokenArgs(this.chainId, tokenFrom),

360✔

938

                [toChainTokens,   tokenIndexTo]   = BridgeUtils.makeTokenArgs(chainIdTo,    tokenTo);

360✔

939

360✔

940

            return {

360✔

941

                fromChainTokens,

360✔

942

                toChainTokens,

360✔

943

                tokenFrom,

360✔

944

                tokenTo,

360✔

945

                tokenIndexFrom,

360✔

946

                tokenIndexTo

360✔

947

360✔

948

360✔

949

12✔

950

        private checkEasyArgs(

12✔

951

            args: BridgeTransactionParams,

160✔

952

            zapBridge: GenericZapBridgeContract,

160✔

953

            easyDeposits:    ID[],

160✔

954

            easyRedeems:     ID[],

160✔

955

            easyDepositETH?: ID[],

160✔

956

        ): EasyArgsCheck {

160✔

957

let

160✔

958

                castArgs = args as BridgeUtils.BridgeTxParams,

160✔

959

                isEasy: boolean = false,

160✔

960

                txn:    Promise<PopulatedTransaction>;

160✔

961

160✔

962

            const params = BridgeUtils.makeEasyParams(castArgs, this.chainId, args.tokenTo);

160✔

963

160✔

964

            switch (true) {

160✔

965

                case easyRedeems.includes(args.tokenTo.id):

160✔

966

                    isEasy = true;

18✔

967

                    txn    = zapBridge.populateTransaction.redeem(...params);

18✔

968

                    break;

18✔

969

                case easyDeposits.includes(args.tokenTo.id):

160✔

970

                    isEasy = true;

8✔

971

                    txn    = zapBridge.populateTransaction.deposit(...params);

8✔

972

                    break;

8✔

973

                case easyDepositETH.includes(args.tokenTo.id):

160✔

974

                    isEasy = true;

12✔

975

                    txn    =  zapBridge

12✔

976

                        .populateTransaction

12✔

977

                        .depositETH(

12✔

978

                            ...BridgeUtils.depositETHParams(castArgs),

12✔

979

                            BridgeUtils.makeOverrides(args.amountFrom, true)

12✔

980

);

12✔

981

                    break;

12✔

982

160✔

983

160✔

984

            return {castArgs, isEasy, txn}

160✔

985

160✔

986

12✔

987

        private async checkSwapSupported(args: BridgeParams): Promise<boolean> {

12✔

988

            return new Promise<boolean>((resolve, reject) => {

192✔

989

                let [swapSupported, errReason] = this.swapSupported(args);

192✔

990

                if (!swapSupported) {

192✔

991

                    reject(errReason);

10✔

992

                    return

10✔

993

10✔

994

182✔

995

                resolve(true);

182✔

996

})

192✔

997

192✔

998

12✔

999

        private buildERC20ApproveArgs(args: {

12✔

1000

            token:   Token | string,

182✔

1001

            amount?: BigNumberish

182✔

1002

        }): [ERC20.ApproveArgs, string] {

182✔

1003

            const {token, amount} = args;

182✔

1004

182✔

1006

                ? token.address(this.chainId)

182✔

1008

182✔

1009

            let spender: string;

182✔

1010

            if (tokenAddr === Tokens.UST.address(this.chainId)) {

182✔

1011

                spender = this.bridgeAddress;

18✔

1012

            } else {

182✔

1013

                spender = this.zapBridgeAddress;

164✔

1014

164✔

1015

182✔

1016

            return [{

182✔

1017

                spender,

182✔

1018

                amount

182✔

1019

            }, tokenAddr]

182✔

1020

182✔

1021

12✔

1022

        async getAllowanceForAddress(args: {

12✔

1023

            address: string,

10✔

1024

            token:   Token,

10✔

1025

        }): Promise<BigNumber> {

10✔

1026

            let { address, token } = args;

10✔

1027

            let tokenAddress = token.address(this.chainId);

10✔

1028

10✔

1029

            return ERC20.allowanceOf(address, this.zapBridgeAddress, {tokenAddress, chainId: this.chainId})

10✔

1030

10✔

1031

12✔

1032

        private static async resolveApproveFunc(

12✔

1033

            approveRes:    CheckCanBridgeResult,

10✔

1034

            hasBalanceRes: Promise<CanBridgeResult>,

10✔

1035

            token:         Token

10✔

1036

        ): Promise<CanBridgeResult> {

10✔

1037

            const [needsApprove, allowance] = approveRes;

10✔

1038

            const errStr: string = `Spend allowance of Bridge too low for token ${token.symbol}`;

10✔

1039

10✔

1040

            return needsApprove

10✔

1042

                : hasBalanceRes

10✔

1043

10✔

1044

12✔

1045

        private async checkNeedsApprove({

12✔

1046

            address,

10✔

1047

            token,

10✔

1048

            amount=MAX_APPROVAL_AMOUNT.sub(1)

10✔

1049

        }: CheckCanBridgeParams): Promise<CheckCanBridgeResult> {

10✔

1050

            const [{spender}, tokenAddress] = this.buildERC20ApproveArgs({token, amount});

10✔

1051

10✔

1052

            return ERC20.allowanceOf(address, spender, {tokenAddress, chainId: this.chainId})

10✔

1053

                .then(allowance => [allowance.lt(amount), allowance] as CheckCanBridgeResult)

10✔

1054

10✔

1055

12✔

1056

        private async checkGasTokenBalance(args: CanBridgeArgs): Promise<CanBridgeResult> {

12✔

1057

            const {signer, address, amount, token} = args;

14✔

1058

14✔

1059

            let balanceFn: () => Promise<BigNumber>;

14✔

1061

                /* c8 ignore next */

2✔

1062

                balanceFn = signer.getBalance;

2✔

1063

            } else if (address) {

14✔

1064

                balanceFn = () => this.provider.getBalance(address);

14✔

1065

14✔

1066

14✔

1067

            return this.resolveBalanceFunc(

14✔

1068

                balanceFn(),

14✔

1069

                amount,

14✔

1070

                token

14✔

1071

14✔

1072

14✔

1073

12✔

1074

        private async checkERC20Balance(args: CheckCanBridgeParams): Promise<CanBridgeResult> {

12✔

1075

            const

10✔

1076

                {address, amount, token} = args,

10✔

1077

                [, tokenAddress] = this.buildERC20ApproveArgs(args);

10✔

1078

10✔

1079

            return this.resolveBalanceFunc(

10✔

1080

                ERC20.balanceOf(address, {tokenAddress, chainId: this.chainId}),

10✔

1081

                amount,

10✔

1082

                token

10✔

1083

10✔

1084

10✔

1085

12✔

1086

        private async checkTerraUSTBalance({address, token, amount}: CanBridgeArgs): Promise<CanBridgeResult> {

12✔

1087

            const balProm: Promise<BigNumber> = this.terraProvider.bank.balance(address)

4✔

1088

                .then(([res]) => {

4✔

1089

                    let coin = res.get("uusd");

4✔

1090

                    if (coin) {

4✔

1091

                        const {amount} = coin.toData();

4✔

1092

                        if (amount && (amount !== "")) {

4✔

1093

                            return BigNumber.from(amount);

4✔

1094

4✔

1095

4✔

1096

                        return Zero

4✔

1097

4✔

1098

4✔

1099

                    return Zero

4✔

1100

})

4✔

1101

4✔

1102

            return this.resolveBalanceFunc(

4✔

1103

                balProm,

4✔

1104

                amount,

4✔

1105

                token

4✔

1106

4✔

1107

4✔

1108

12✔

1109

        private async resolveBalanceFunc(

12✔

1110

            prom:   Promise<BigNumber>,

28✔

1111

            amount: BigNumberish,

28✔

1112

            token:  Token

28✔

1113

        ): Promise<CanBridgeResult> {

28✔

1114

            return Promise.resolve(prom)

28✔

1115

                .then(balance => {

28✔

1116

                    const hasBalance = balance.gte(amount);

28✔

1117

28✔

1118

                    const errMsg: string = `Balance of token ${token.symbol} is too low`;

28✔

1119

28✔

1120

                    return hasBalance

28✔

1121

                        ? {canBridge: true}

28✔

1122

                        : {canBridge: false, error: new Error(errMsg), amount: balance}

28✔

1123

})

28✔

1124

                .catch(rejectPromise)

28✔

1125

28✔

1126

12✔

1127

12✔

1128

    const REQUIRED_CONFS: NumberMap = {

12✔

1129

        [ChainId.ETH]:       7,

12✔

1130

        [ChainId.OPTIMISM]:  1,

12✔

1131

        [ChainId.CRONOS]:    6,

12✔

1132

        [ChainId.BSC]:       14,

12✔

1133

        [ChainId.POLYGON]:   128,

12✔

1134

        [ChainId.FANTOM]:    5,

12✔

1135

        [ChainId.BOBA]:      1,

12✔

1136

        [ChainId.METIS]:     6,

12✔

1137

        [ChainId.MOONBEAM]:  21,

12✔

1138

        [ChainId.MOONRIVER]: 21,

12✔

1139

        [ChainId.ARBITRUM]:  40,

12✔

1140

        [ChainId.AVALANCHE]: 5,

12✔

1141

        [ChainId.TERRA]:     1,

12✔

1142

        [ChainId.AURORA]:    5,

12✔

1143

        [ChainId.HARMONY]:   1,

12✔

1144

};

12✔

1145

12✔

1146

    export function getRequiredConfirmationsForBridge(network: Networks.Network | number): number {

12✔

1148

682✔

1150

682✔

1151

12✔

1152

    /* c8 ignore next */

2✔

1153

    export function bridgeSwapSupported(args: TokenSwap.BridgeSwapSupportedParams): TokenSwap.SwapSupportedResult {

2✔

1156

12✔

synapsecns / sdk / 1961918416

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