Evolution API WhatsApp MCP Server

Instructions

Implementation Reference

• src/index.ts:810-820 (handler)

  MCP tool handler function that invokes the template service to delete a template by ID and returns a success or failure message in the required MCP content format.

  private async handleDeleteTemplate(args: any) {
    const deleted = await templateService.deleteTemplate(args.templateId);
    return {
      content: [
        {
          type: 'text',
          text: deleted ? 'Template deleted successfully' : 'Cannot delete default template or template not found'
        }
      ]
    };
  }

• src/index.ts:264-274 (registration)

  Tool registration entry in the tools array provided to the MCP ListTools handler, including name, description, and input schema.

  {
    name: 'delete_template',
    description: 'Delete a custom template',
    inputSchema: {
      type: 'object',
      properties: {
        templateId: { type: 'string', description: 'Template ID to delete' }
      },
      required: ['templateId']
    }
  },

• src/index.ts:267-272 (schema)

  Input schema definition for the delete_template tool, specifying the required templateId parameter.

  inputSchema: {
    type: 'object',
    properties: {
      templateId: { type: 'string', description: 'Template ID to delete' }
    },
    required: ['templateId']

• src/services/template-service.ts:178-189 (helper)

  TemplateService method that performs the actual deletion: checks if not default, removes from internal Map, saves to storage, returns boolean success.

  async deleteTemplate(id: string): Promise<boolean> {
    // Don't delete default templates
    if (DEFAULT_TEMPLATES.find(t => t.id === id)) {
      return false;
    }
  
    const deleted = this.templates.delete(id);
    if (deleted) {
      await this.saveCustomTemplates();
    }
    return deleted;
  }