MCP-MongoDB-MySQL-Server

Instructions

Implementation Reference

• src/index.ts:1069-1100 (handler)

  The handler function that executes the mongodb_delete tool. It ensures MongoDB connection, validates inputs, and performs deleteOne or deleteMany based on the 'many' parameter.

  private async handleMongoDBDelete(args: any) {
    await this.ensureMongoConnection();
  
    if (!args.collection || !args.filter) {
      throw new McpError(ErrorCode.InvalidParams, 'Collection name and filter are required');
    }
  
    try {
      const collection = this.mongoDB!.collection(args.collection);
      let result;
      
      if (args.many) {
        result = await collection.deleteMany(args.filter);
      } else {
        result = await collection.deleteOne(args.filter);
      }
      
      return {
        content: [
          {
            type: 'text',
            text: `Successfully deleted ${result.deletedCount} documents`,
          },
        ],
      };
    } catch (error) {
      throw new McpError(
        ErrorCode.InternalError,
        `Failed to delete documents: ${getErrorMessage(error)}`
      );
    }
  }

• src/index.ts:490-512 (schema)

  The input schema definition for the mongodb_delete tool, specifying required collection and filter, optional many flag.

  {
    name: 'mongodb_delete',
    description: 'Delete documents from a MongoDB collection',
    inputSchema: {
      type: 'object',
      properties: {
        collection: {
          type: 'string',
          description: 'Collection name',
        },
        filter: {
          type: 'object',
          description: 'MongoDB query filter',
        },
        many: {
          type: 'boolean',
          description: 'Delete multiple documents if true',
          optional: true
        }
      },
      required: ['collection', 'filter'],
    },
  },

• src/index.ts:562-563 (registration)

  The switch case in the request handler that registers and dispatches calls to the mongodb_delete tool to its handler.

  case 'mongodb_delete':
    return await this.handleMongoDBDelete(request.params.arguments);