Integrating Angular with Serverless Architectures for Scalable Applications

title: Integrating Angular with Serverless Architectures for Scalable Applications
description: Strategies for combining Angular with serverless platforms to build scalable and cost-effective applications.
category: Angular Cursor Rules
rules:
  - id: angular-serverless-modular-design
    description: "Ensure Angular applications are structured into modular components to facilitate integration with serverless functions."
    severity: warning
    pattern: |
      {
        "type": "Program",
        "body": [
          {
            "type": "ImportDeclaration",
            "source": {
              "value": "./app.module"
            }
          }
        ]
      }
    message: "Consider breaking down the application into feature modules to enhance maintainability and scalability."
    references:
      - "https://wslisam.medium.com/best-practices-for-architecting-large-scale-angular-applications-0759dcdbcad4"

  - id: angular-serverless-lazy-loading
    description: "Implement lazy loading in Angular routes to optimize performance in serverless environments."
    severity: warning
    pattern: |
      {
        "type": "CallExpression",
        "callee": {
          "type": "MemberExpression",
          "object": {
            "name": "RouterModule"
          },
          "property": {
            "name": "forRoot"
          }
        },
        "arguments": [
          {
            "type": "ArrayExpression",
            "elements": [
              {
                "type": "ObjectExpression",
                "properties": [
                  {
                    "key": {
                      "name": "path"
                    },
                    "value": {
                      "type": "Literal"
                    }
                  },
                  {
                    "key": {
                      "name": "component"
                    },
                    "value": {
                      "type": "Identifier"
                    }
                  }
                ]
              }
            ]
          }
        ]
      }
    message: "Replace direct component loading with lazy loading using 'loadChildren' to improve application performance."
    references:
      - "https://wslisam.medium.com/best-practices-for-architecting-large-scale-angular-applications-0759dcdbcad4"

  - id: angular-serverless-api-integration
    description: "Use environment-specific configurations for API endpoints to ensure seamless integration with serverless backends."
    severity: error
    pattern: |
      {
        "type": "VariableDeclarator",
        "id": {
          "name": "apiUrl"
        },
        "init": {
          "type": "Literal",
          "value": "http://localhost:3000/api"
        }
      }
    message: "Avoid hardcoding API URLs; use environment variables to manage different serverless environments."
    references:
      - "https://auth0.com/blog/serverless-angular-app-with-persistence-and-security/"

  - id: angular-serverless-security
    description: "Implement proper authentication and authorization mechanisms when integrating Angular with serverless APIs."
    severity: error
    pattern: |
      {
        "type": "CallExpression",
        "callee": {
          "name": "fetch"
        },
        "arguments": [
          {
            "type": "Literal",
            "value": "/api/data"
          }
        ]
      }
    message: "Ensure that API calls include appropriate authentication tokens to secure communication with serverless backends."
    references:
      - "https://auth0.com/blog/serverless-angular-app-with-persistence-and-security/"

  - id: angular-serverless-error-handling
    description: "Implement comprehensive error handling for API interactions to enhance reliability in serverless applications."
    severity: warning
    pattern: |
      {
        "type": "CallExpression",
        "callee": {
          "name": "fetch"
        },
        "arguments": [
          {
            "type": "Literal",
            "value": "/api/data"
          }
        ]
      }
    message: "Wrap API calls in try-catch blocks and handle errors gracefully to maintain application stability."
    references:
      - "https://auth0.com/blog/serverless-angular-app-with-persistence-and-security/"