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API Testing Prompts

This section provides prompts designed to help you create effective API test scenarios using AI. These prompts ensure thorough testing of API endpoints, functionality, and integration.

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Basic API Test Generation

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Prompt Template

Generate API test scenarios for:
[API Service]: [Brief description]

API Details:
- Base URL: [URL]
- Authentication: [Type]
- Format: [JSON/XML]
- Version: [Version]

Endpoints:
1. [Endpoint 1]
2. [Endpoint 2]
...

Please include:
- Test Cases
- Request/Response Format
- Authentication
- Error Handling
- Validation Rules

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Example Usage

Generate API test scenarios for:
User Management API: RESTful API for user operations

API Details:
- Base URL: https://api.example.com/v1
- Authentication: Bearer Token
- Format: JSON
- Version: 1.0

Endpoints:
1. POST /users
2. GET /users/{id}
3. PUT /users/{id}
4. DELETE /users/{id}
5. GET /users/search

Please include:
- Test Cases
- Request/Response Format
- Authentication
- Error Handling
- Validation Rules

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Advanced API Testing

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Integration Testing

Generate API integration test scenarios for:
[System/Service]: [Description]

Integration Points:
1. Authentication Service
2. Database Service
3. External APIs
4. Message Queue
5. Cache Service

Include:
- Test Cases
- Data Flow
- Error Scenarios
- Performance Impact
- Recovery Procedures

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Performance Testing

Generate API performance test scenarios for:
[API Service]: [Description]

Performance Metrics:
1. Response Time
2. Throughput
3. Concurrent Users
4. Resource Usage
5. Error Rates

Include:
- Test Scenarios
- Load Patterns
- Monitoring Points
- Success Criteria
- Failure Thresholds

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Best Practices

When using these prompts:
  1. Follow API Standards
    • REST principles
    • HTTP methods
    • Status codes
    • Error handling
  2. Validate Responses
    • Status codes
    • Response format
    • Data validation
    • Error messages
  3. Test Edge Cases
    • Invalid inputs
    • Boundary values
    • Error conditions
    • Timeout scenarios
  4. Document API
    • Endpoints
    • Parameters
    • Responses
    • Error codes

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Tips for Better Results

  1. Start with Documentation
    • API specs
    • Endpoint details
    • Authentication
    • Data models
  2. Plan Test Approach
    • Test scope
    • Test methods
    • Tools selection
    • Environment setup
  3. Execute Tests
    • Follow sequence
    • Document results
    • Validate responses
    • Handle errors
  4. Analyze Results
    • Performance metrics
    • Error patterns
    • Response times
    • Resource usage

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Common Pitfalls to Avoid

  1. Incomplete Coverage
    • ❌ “Test the API”
    • ✅ “Test all endpoints with valid/invalid inputs, authentication, and error scenarios”
  2. Missing Validation
    • ❌ “Check response”
    • ✅ “Validate response status, format, data types, and business rules”
  3. Poor Error Handling
    • ❌ “Handle errors”
    • ✅ “Test error scenarios with proper status codes, error messages, and recovery”
  4. Inadequate Documentation
    • ❌ “API tests”
    • ✅ “Documented API tests with request/response examples, validation rules, and error handling”

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Example Output Structure

API Test Plan: User Management API
Version: 1.0
Date: [Current Date]

1. API Overview
   - Base URL
   - Authentication
   - Format
   - Version

2. Test Cases
   - Create User
   - Get User
   - Update User
   - Delete User
   - Search Users

3. Request/Response
   - Request Format
   - Response Format
   - Status Codes
   - Error Messages

4. Authentication
   - Token Management
   - Authorization
   - Error Handling
   - Security

5. Validation
   - Input Validation
   - Response Validation
   - Business Rules
   - Data Types

6. Performance
   - Response Time
   - Throughput
   - Concurrent Users
   - Resource Usage