14705884283

Committed 28 Apr 2025 10:45AM UTC coverage: 82.547% (+0.9%) from 81.696%

Build # 14705884283

Build Type

Pull #131

github

Committed by

fmenezes

Commit Message

fix: make ip changes smooth

Pull Request Pull Request #131: feat: add atlas-connect-cluster tool

Run Details

147 of 229 branches covered (64.19%)

Branch coverage included in aggregate %.

26 of 31 new or added lines in 4 files covered. (83.87%)

60 existing lines in 8 files now uncovered.

780 of 894 relevant lines covered (87.25%)

49.5 hits per line

Source File
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83.58

/src/server.ts

import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { Session } from "./session.js";
import { Transport } from "@modelcontextprotocol/sdk/shared/transport.js";
import { AtlasTools } from "./tools/atlas/tools.js";
import { MongoDbTools } from "./tools/mongodb/tools.js";
import logger, { initializeLogger } from "./logger.js";
import { mongoLogId } from "mongodb-log-writer";
import { ObjectId } from "mongodb";
import { Telemetry } from "./telemetry/telemetry.js";
import { UserConfig } from "./config.js";
import { type ServerEvent } from "./telemetry/types.js";
import { type ServerCommand } from "./telemetry/types.js";
import { CallToolRequestSchema, CallToolResult } from "@modelcontextprotocol/sdk/types.js";
import assert from "assert";

export interface ServerOptions {
    session: Session;
    userConfig: UserConfig;
    mcpServer: McpServer;
}

export class Server {
    public readonly session: Session;
    private readonly mcpServer: McpServer;
    private readonly telemetry: Telemetry;
    private readonly userConfig: UserConfig;
    private readonly startTime: number;

    constructor({ session, mcpServer, userConfig }: ServerOptions) {
        this.startTime = Date.now();
        this.session = session;
        this.telemetry = new Telemetry(session);
        this.mcpServer = mcpServer;
        this.userConfig = userConfig;
    }

    async connect(transport: Transport) {
        this.mcpServer.server.registerCapabilities({ logging: {} });
        this.registerTools();
        this.registerResources();

        // This is a workaround for an issue we've seen with some models, where they'll see that everything in the `arguments`
        // object is optional, and then not pass it at all. However, the MCP server expects the `arguments` object to be if
        // the tool accepts any arguments, even if they're all optional.
        //
        // see: https://github.com/modelcontextprotocol/typescript-sdk/blob/131776764536b5fdca642df51230a3746fb4ade0/src/server/mcp.ts#L705
        // Since paramsSchema here is not undefined, the server will create a non-optional z.object from it.
        const existingHandler = (
            this.mcpServer.server["_requestHandlers"] as Map<
                string,
                (request: unknown, extra: unknown) => Promise<CallToolResult>
            >
        ).get(CallToolRequestSchema.shape.method.value);

        assert(existingHandler, "No existing handler found for CallToolRequestSchema");

        this.mcpServer.server.setRequestHandler(CallToolRequestSchema, (request, extra): Promise<CallToolResult> => {
            if (!request.params.arguments) {
                request.params.arguments = {};
            }

            return existingHandler(request, extra);
        });

        await initializeLogger(this.mcpServer, this.userConfig.logPath);

        await this.mcpServer.connect(transport);

        this.mcpServer.server.oninitialized = () => {
            this.session.setAgentRunner(this.mcpServer.server.getClientVersion());
            this.session.sessionId = new ObjectId().toString();

            logger.info(
                mongoLogId(1_000_004),
                "server",
                `Server started with transport ${transport.constructor.name} and agent runner ${this.session.agentRunner?.name}`
            );

            this.emitServerEvent("start", Date.now() - this.startTime);
        };

        this.mcpServer.server.onclose = () => {
            const closeTime = Date.now();
            this.emitServerEvent("stop", Date.now() - closeTime);
        };

        this.mcpServer.server.onerror = (error: Error) => {
            const closeTime = Date.now();
            this.emitServerEvent("stop", Date.now() - closeTime, error);
        };
    }

    async close(): Promise<void> {
        await this.session.close();
        await this.mcpServer.close();
    }

    /**
     * Emits a server event
     * @param command - The server command (e.g., "start", "stop", "register", "deregister")
     * @param additionalProperties - Additional properties specific to the event
     */
    emitServerEvent(command: ServerCommand, commandDuration: number, error?: Error) {
        const event: ServerEvent = {
            timestamp: new Date().toISOString(),
            source: "mdbmcp",
            properties: {
                ...this.telemetry.getCommonProperties(),
                result: "success",
                duration_ms: commandDuration,
                component: "server",
                category: "other",
                command: command,
            },
        };

        if (command === "start") {
            event.properties.startup_time_ms = commandDuration;
        }
        if (command === "stop") {
            event.properties.runtime_duration_ms = Date.now() - this.startTime;
            if (error) {
                event.properties.result = "failure";
                event.properties.reason = error.message;
            }
        }

        this.telemetry.emitEvents([event]).catch(() => {});
    }

    private registerTools() {
        for (const tool of [...AtlasTools, ...MongoDbTools]) {
            new tool(this.session, this.userConfig, this.telemetry).register(this.mcpServer);
        }
    }

    private registerResources() {
        if (this.userConfig.connectionString) {
            this.mcpServer.resource(
                "connection-string",
                "config://connection-string",
                {
                    description: "Preconfigured connection string that will be used as a default in the `connect` tool",
                },
                (uri) => {
                    return {
                        contents: [
                            {
                                text: `Preconfigured connection string: ${this.userConfig.connectionString}`,
                                uri: uri.href,
                            },
                        ],
                    };
                }
            );
        }
    }
}

1	import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
2	import { Session } from "./session.js";
3	import { Transport } from "@modelcontextprotocol/sdk/shared/transport.js";
4	import { AtlasTools } from "./tools/atlas/tools.js";	31✔
5	import { MongoDbTools } from "./tools/mongodb/tools.js";	31✔
6	import logger, { initializeLogger } from "./logger.js";	31✔
7	import { mongoLogId } from "mongodb-log-writer";	31✔
8	import { ObjectId } from "mongodb";	31✔
9	import { Telemetry } from "./telemetry/telemetry.js";
10	import { UserConfig } from "./config.js";
11	import { type ServerEvent } from "./telemetry/types.js";
12	import { type ServerCommand } from "./telemetry/types.js";	31✔
13	import { CallToolRequestSchema, CallToolResult } from "@modelcontextprotocol/sdk/types.js";	31✔
14	import assert from "assert";
15
16	export interface ServerOptions {
17	session: Session;
18	userConfig: UserConfig;
19	mcpServer: McpServer;
20	}
21		31✔
22	export class Server {
23	public readonly session: Session;
24	private readonly mcpServer: McpServer;
25	private readonly telemetry: Telemetry;
26	private readonly userConfig: UserConfig;
27	private readonly startTime: number;
28
29	constructor({ session, mcpServer, userConfig }: ServerOptions) {	29✔
30	this.startTime = Date.now();	29✔
31	this.session = session;	29✔
32	this.telemetry = new Telemetry(session);	29✔
33	this.mcpServer = mcpServer;	29✔
34	this.userConfig = userConfig;
35	}
36
37	async connect(transport: Transport) {	29✔
38	this.mcpServer.server.registerCapabilities({ logging: {} });
39	this.registerTools();	29✔
40	this.registerResources();	29✔
41
42	// This is a workaround for an issue we've seen with some models, where they'll see that everything in the `arguments`
43	// object is optional, and then not pass it at all. However, the MCP server expects the `arguments` object to be if
44	// the tool accepts any arguments, even if they're all optional.
45	//
46	// see: https://github.com/modelcontextprotocol/typescript-sdk/blob/131776764536b5fdca642df51230a3746fb4ade0/src/server/mcp.ts#L705
47	// Since paramsSchema here is not undefined, the server will create a non-optional z.object from it.
48	const existingHandler = (
49	this.mcpServer.server["_requestHandlers"] as Map<	29✔
50	string,
51	(request: unknown, extra: unknown) => Promise<CallToolResult>
52	>
53	).get(CallToolRequestSchema.shape.method.value);
54
55	assert(existingHandler, "No existing handler found for CallToolRequestSchema");	29✔
56
57	this.mcpServer.server.setRequestHandler(CallToolRequestSchema, (request, extra): Promise<CallToolResult> => {	29✔
58	if (!request.params.arguments) {	331✔
59	request.params.arguments = {};	1✔
60	}
61
62	return existingHandler(request, extra);	331✔
63	});
64
65	await initializeLogger(this.mcpServer, this.userConfig.logPath);	29✔
66
67	await this.mcpServer.connect(transport);	29✔
68
69	this.mcpServer.server.oninitialized = () => {	29✔
70	this.session.setAgentRunner(this.mcpServer.server.getClientVersion());	29✔
71	this.session.sessionId = new ObjectId().toString();	29✔
72
73	logger.info(	29✔
74	mongoLogId(1_000_004),
75	"server",
76	`Server started with transport ${transport.constructor.name} and agent runner ${this.session.agentRunner?.name}`
77	);
78
79	this.emitServerEvent("start", Date.now() - this.startTime);	29✔
80	};
81
82	this.mcpServer.server.onclose = () => {	29✔
83	const closeTime = Date.now();	29✔
84	this.emitServerEvent("stop", Date.now() - closeTime);	29✔
85	};
86
87	this.mcpServer.server.onerror = (error: Error) => {	29✔
88	const closeTime = Date.now();	×
89	this.emitServerEvent("stop", Date.now() - closeTime, error);	×
90	};
91	}
92
93	async close(): Promise<void> {
94	await this.session.close();	29✔
95	await this.mcpServer.close();	29✔
96	}
97
98	/**
99	* Emits a server event
100	* @param command - The server command (e.g., "start", "stop", "register", "deregister")
101	* @param additionalProperties - Additional properties specific to the event
102	*/
103	emitServerEvent(command: ServerCommand, commandDuration: number, error?: Error) {
104	const event: ServerEvent = {	58✔
105	timestamp: new Date().toISOString(),
106	source: "mdbmcp",
107	properties: {
108	...this.telemetry.getCommonProperties(),
109	result: "success",
110	duration_ms: commandDuration,
111	component: "server",
112	category: "other",
113	command: command,
114	},
115	};
116
117	if (command === "start") {	58✔
118	event.properties.startup_time_ms = commandDuration;	29✔
119	}	29✔
120	if (command === "stop") {	29!
121	event.properties.runtime_duration_ms = Date.now() - this.startTime;
122	if (error) {	58✔
123	event.properties.result = "failure";	29✔
124	event.properties.reason = error.message;	29!
UNCOV 125	}	×
UNCOV 126	}	×
127
128	this.telemetry.emitEvents([event]).catch(() => {});
129	}
130		58✔
131	private registerTools() {
132	for (const tool of [...AtlasTools, ...MongoDbTools]) {
133	new tool(this.session, this.userConfig, this.telemetry).register(this.mcpServer);
134	}	29✔
135	}	899✔
136
137	private registerResources() {
138	if (this.userConfig.connectionString) {
139	this.mcpServer.resource(
140	"connection-string",	29✔
141	"config://connection-string",
142	{
143	description: "Preconfigured connection string that will be used as a default in the `connect` tool",
144	},
145	(uri) => {
146	return {
147	contents: [
UNCOV 148	{	×
149	text: `Preconfigured connection string: ${this.userConfig.connectionString}`,
150	uri: uri.href,
151	},	×
152	],
153	};
154	}
155	);
UNCOV 156	}	×
157	}
158	}

mongodb-js / mongodb-mcp-server / 14705884283

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