Evolution API WhatsApp MCP Server

Instructions

Implementation Reference

• src/index.ts:730-743 (handler)

  Main handler function for the 'get_template' tool. Retrieves the template by ID using templateService and returns it as JSON text content.

  private async handleGetTemplate(args: any) {
    const template = templateService.getTemplate(args.templateId);
    if (!template) {
      throw new Error(`Template ${args.templateId} not found`);
    }
    return {
      content: [
        {
          type: 'text',
          text: JSON.stringify(template, null, 2)
        }
      ]
    };
  }

• src/index.ts:213-222 (schema)

  Tool registration in the tools list including input schema definition requiring 'templateId'.

    name: 'get_template',
    description: 'Get a specific template by ID',
    inputSchema: {
      type: 'object',
      properties: {
        templateId: { type: 'string', description: 'Template ID' }
      },
      required: ['templateId']
    }
  },

• src/index.ts:510-511 (registration)

  Dispatch case in the main CallToolRequestHandler switch statement that routes to the specific handler.

  case 'get_template':
    return await this.handleGetTemplate(args);

• src/services/template-service.ts:110-112 (helper)

  Core helper method in templateService that fetches a template from the internal Map by ID.

  getTemplate(id: string): MessageTemplate | undefined {
    return this.templates.get(id);
  }