chore: move atlas projects and clusters into resources

Author: fmenezes

package-lock.json

@@ -3,6 +3,7 @@
   "description": "MongoDB Model Context Protocol Server",
   "version": "0.0.0",
   "main": "dist/index.js",
+  "type": "module",
   "author": "MongoDB <info@mongodb.com>",
   "homepage": "https://github.com/mongodb-js/mongodb-mcp-server",
   "repository": {

package.json

@@ -0,0 +1,32 @@
+import { ApiClient } from "../../client.js";
+import { State } from "../../state.js";
+
+export async function ensureAuthenticated(state: State, apiClient: ApiClient): Promise<void> {
+    if (!(await isAuthenticated(state, apiClient))) {
+        throw new Error("Not authenticated");
+    }
+}
+
+export async function isAuthenticated(state: State, apiClient: ApiClient): Promise<boolean> {
+    switch (state.auth.status) {
+        case "not_auth":
+            return false;
+        case "requested":
+            try {
+                if (!state.auth.code) {
+                    return false;
+                }
+                await apiClient.retrieveToken(state.auth.code.device_code);
+                return !!state.auth.token;
+            } catch {
+                return false;
+            }
+        case "issued":
+            if (!state.auth.token) {
+                return false;
+            }
+            return await apiClient.validateToken();
+        default:
+            throw new Error("Unknown authentication status");
+    }
+}

src/common/atlas/auth.ts

@@ -1,14 +1,20 @@
 import path from "path";
 import fs from "fs";
 
-const packageMetadata = fs.readFileSync(path.resolve("./package.json"), "utf8");
+import { fileURLToPath } from 'url';
+import { dirname } from 'path';
+
+const __filename = fileURLToPath(import.meta.url);
+const dir = path.resolve(path.join(dirname(__filename), ".."));
+
+const packageMetadata = fs.readFileSync(path.join(dir, "package.json"), "utf8");
 const packageJson = JSON.parse(packageMetadata);
 
 export const config = {
     version: packageJson.version,
     apiBaseURL: process.env.API_BASE_URL || "https://cloud.mongodb.com/",
     clientID: process.env.CLIENT_ID || "0oabtxactgS3gHIR0297",
-    stateFile: process.env.STATE_FILE || path.resolve("./state.json"),
+    stateFile: process.env.STATE_FILE || path.join(dir, "state.json"),
     projectID: process.env.PROJECT_ID,
     userAgent: `AtlasMCP/${packageJson.version} (${process.platform}; ${process.arch}; ${process.env.HOSTNAME || "unknown"})`,
 };

src/config.ts

@@ -0,0 +1,33 @@
+import { ResourceTemplate } from "@modelcontextprotocol/sdk/server/mcp.js";;
+import { ResourceTemplateBase } from "../base.js";
+import { ensureAuthenticated } from "../../common/atlas/auth.js";
+
+export class ClustersResource extends ResourceTemplateBase {
+    name = "clusters";
+    metadata = {
+        description: "MongoDB Atlas clusters"
+    };
+    template = new ResourceTemplate("atlas://clusters", { list: undefined });
+
+    async execute(uri: URL, { projectId }: { projectId: string }) {
+        await ensureAuthenticated(this.state, this.apiClient);
+
+        const clusters = await this.apiClient.listProjectClusters(projectId);
+
+        if (!clusters || clusters.results.length === 0) {
+            return {
+                contents: [],
+            };
+        }
+
+        return {
+            contents: [
+                {
+                    uri: uri.href,
+                    mimeType: "application/json",
+                    text: JSON.stringify(clusters.results),
+                },
+            ],
+        };
+    }
+};

src/resources/atlas/clusters.ts

@@ -0,0 +1,37 @@
+import { ensureAuthenticated } from "../../common/atlas/auth.js";
+import { ResourceUriBase } from "../base.js";
+
+export class ProjectsResource extends ResourceUriBase {
+    name = "projects";
+    metadata = {
+        description: "MongoDB Atlas projects"
+    };
+    uri = "atlas://projects";
+
+    async execute(uri: URL) {
+        await ensureAuthenticated(this.state, this.apiClient);
+
+        const projects = await this.apiClient.listProjects();
+
+        if (!projects) {
+            return {
+                contents: [],
+            };
+        }
+
+        const projectList = projects.results.map((project) => ({
+            id: project.id,
+            name: project.name,
+        }));
+
+        return {
+            contents: [
+                {
+                    uri: uri.href,
+                    mimeType: "application/json",
+                    text: JSON.stringify(projectList),
+                },
+            ],
+        };
+    }
+};

src/resources/atlas/projects.ts

@@ -0,0 +1,49 @@
+import { McpServer, ResourceMetadata, ResourceTemplate } from "@modelcontextprotocol/sdk/server/mcp.js";;
+import { RequestHandlerExtra } from "@modelcontextprotocol/sdk/shared/protocol.js";;
+import { State } from "../state.js";
+import { ApiClient } from "../client.js";
+import { ReadResourceResult } from "@modelcontextprotocol/sdk/types.js";;
+import { Variables } from "@modelcontextprotocol/sdk/shared/uriTemplate.js";;
+
+abstract class ResourceCommonBase {
+    protected abstract name: string;
+    protected abstract metadata?: ResourceMetadata;
+
+    constructor(protected state: State, protected apiClient: ApiClient) { }
+}
+
+export abstract class ResourceUriBase extends ResourceCommonBase {
+    protected abstract uri: string;
+
+    abstract execute(uri: URL, extra: RequestHandlerExtra): ReadResourceResult | Promise<ReadResourceResult>;
+
+    register(server: McpServer) {
+        server.resource(
+            this.name,
+            this.uri,
+            this.metadata || {},
+            (uri: URL, extra: RequestHandlerExtra) => {
+                return this.execute(uri, extra);
+            }
+        );
+    }
+}
+
+export abstract class ResourceTemplateBase extends ResourceCommonBase {
+    protected abstract template: ResourceTemplate;
+
+    abstract execute(uri: URL, variables: Variables, extra: RequestHandlerExtra): ReadResourceResult | Promise<ReadResourceResult>;
+
+    register(server: McpServer) {
+        server.resource(
+            this.name,
+            this.template,
+            this.metadata || {},
+            (uri: URL, variables: Variables, extra: RequestHandlerExtra) => {
+                return this.execute(uri, variables, extra);
+            }
+        );
+    }
+}
+
+export type ResourceBase = ResourceTemplateBase | ResourceUriBase;

src/resources/base.ts

@@ -0,0 +1,14 @@
+import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
+import { ApiClient } from '../client';
+import { State } from '../state';
+import { ProjectsResource } from './atlas/projects.js';
+import { ClustersResource } from './atlas/clusters.js';
+
+export function registerResources(server: McpServer, state: State, apiClient: ApiClient) {
+    const projectsResource = new ProjectsResource(state, apiClient);
+    const clustersResource = new ClustersResource(state, apiClient);
+
+    projectsResource.register(server);
+    clustersResource.register(server);
+}
+

src/resources/register.ts

@@ -1,10 +1,10 @@
-import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
+import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";;
 import { ApiClient } from "./client.js";
 import { State, saveState, loadState } from "./state.js";
-import { Transport } from "@modelcontextprotocol/sdk/shared/transport.js";
-import { registerAtlasTools } from "./tools/atlas/tools.js";
-import { registerMongoDBTools } from "./tools/mongodb/index.js";
+import { Transport } from "@modelcontextprotocol/sdk/shared/transport.js";;
 import { config } from "./config.js";
+import { registerResources } from "./resources/register.js";
+import { registerTools } from "./tools/register.js";
 
 export class Server {
     state: State | undefined = undefined;
@@ -39,9 +39,10 @@ export class Server {
             version: config.version,
         });
 
-        registerAtlasTools(server, this.state!, this.apiClient!);
-        registerMongoDBTools(server, this.state!);
+        registerResources(server, this.state!, this.apiClient!);
+        registerTools(server, this.state!, this.apiClient!);
 
+        
         return server;
     }