db-mcp-tool

Implementation Reference

• src/index.ts:100-122 (registration)

  Registration of the !firestore tool, including the inline handler function that sets up and connects to Firestore via DatabaseService

  server.tool(
    "!firestore",
    firestoreConnectionSchema,
    async (args: { connection: DatabaseConnectionConfig }) => {
      try {
        const config: DatabaseConfig = {
          type: 'firestore',
          connection: args.connection
        };
        dbService = new DatabaseService(config);
        await dbService.connect();
        return {
          content: [{ type: "text", text: "Successfully connected to Firestore database!" }],
        };
      } catch (error: unknown) {
        const errorMessage = error instanceof Error ? error.message : 'Unknown error';
        return {
          content: [{ type: "text", text: `Firestore connection error: ${errorMessage}` }],
          isError: true,
        };
      }
    }
  );

• src/index.ts:42-47 (schema)

  Zod schema for validating !firestore tool input (projectId and keyFilename)

  const firestoreConnectionSchema = {
    connection: z.object({
      projectId: z.string(),
      keyFilename: z.string(),
    }),
  };

• src/services/database.ts:29-33 (helper)

  Firestore-specific connection logic in DatabaseService.connect() method, initializes Firestore client

  case 'firestore': {
      const config = this.config.connection as any;
      this.firestoreClient = new Firestore(config);
      break;
  }

• src/types/database.ts:1-18 (schema)

  TypeScript type definitions for DatabaseConfig supporting Firestore connection parameters

  export type DatabaseType = 'postgres' | 'mysql' | 'firestore';
  
  export interface DatabaseConnectionConfig {
      // PostgreSQL ve MySQL için
      host?: string;
      port?: number;
      database?: string;
      user?: string;
      password?: string;
      // Firestore için
      projectId?: string;
      keyFilename?: string;
  }
  
  export interface DatabaseConfig {
      type: DatabaseType;
      connection: DatabaseConnectionConfig;
  }