---
title: "Best Practices"
description: "This guide outlines industry-standard best practices for developing with AgentSync's internal APIs and services. Following these practices will help you build robust, secure, and maintainable integrations."
url: "https://internal-developer-portal.agentsync.io/best-practices"
image: "https://internal-developer-portal.agentsync.io/_og/d/c_Ocean.takumi,title_Best+Practices,description_~VGhpcyBndWlkZSBvdXRsaW5lcyBpbmR1c3RyeS1zdGFuZGFyZCBiZXN0IHByYWN0aWNlcyBmb3IgZGV2ZWxvcGluZyB3aXRoIEFnZW50U3luYydzIGludGVybmFsIEFQSXMgYW5kIHNlcnZpY2VzLiBGb2xsb3dpbmcgdGhlc2UgcHJhY3RpY2VzIHdpbGwgaGVscCB5b3UgYnVpbGQgcm9idXN0LCBzZWN1cmUsIGFuZCBtYWludGFpbmFibGUgaW50ZWdyYXRpb25zLg,props_eyJ0aGVtZSI6eyJjb2xvcnMiOnt9fX0,p_Ii9iZXN0LXByYWN0aWNlcyI,s_6fW5DLZ6CBYLhlbp.png"
---

# Best Practices

This guide outlines industry-standard best practices for developing with AgentSync's internal APIs and services. Following these practices will help you build robust, secure, and maintainable integrations.

## [🔐 Security Best Practices](#security-best-practices)

### [Authentication & Authorization](#authentication-authorization)

#### [✅ Do](#do)

-   **Use OAuth 2.0** - Always use OAuth 2.0 for authentication
-   **Store tokens securely** - Use secure storage mechanisms (environment variables, key vaults)
-   **Implement token refresh** - Automatically refresh tokens before expiration
-   **Use least privilege** - Request only the permissions you need
-   **Validate tokens** - Always validate tokens on the server side

#### [❌ Don't](#dont)

-   **Hardcode credentials** - Never commit API keys or secrets to version control
-   **Use deprecated auth methods** - Avoid API keys for new integrations
-   **Ignore token expiration** - Always handle token expiration gracefully
-   **Share credentials** - Never share authentication credentials between applications

### [Data Protection](#data-protection)

#### [✅ Do](#do-1)

-   **Encrypt sensitive data** - Use HTTPS for all API communications
-   **Validate input data** - Sanitize and validate all user inputs
-   **Use secure headers** - Implement proper security headers
-   **Log security events** - Monitor and log authentication failures

#### [❌ Don't](#dont-1)

-   **Send credentials in URLs** - Never include sensitive data in query parameters
-   **Store sensitive data in logs** - Avoid logging authentication tokens or personal data
-   **Ignore security warnings** - Address security vulnerabilities promptly

## [🚀 Performance Best Practices](#performance-best-practices)

### [API Usage](#api-usage)

#### [✅ Do](#do-2)

-   **Implement caching** - Cache responses when appropriate
-   **Use pagination** - Handle large datasets with pagination
-   **Batch requests** - Combine multiple requests when possible
-   **Monitor rate limits** - Respect API rate limits and implement backoff
-   **Use compression** - Enable gzip compression for large responses

#### [❌ Don't](#dont-2)

-   **Make unnecessary requests** - Avoid redundant API calls
-   **Ignore rate limits** - Don't exceed API rate limits
-   **Fetch large datasets** - Use pagination instead of loading all data at once
-   **Block on API calls** - Use asynchronous patterns when possible

### [Error Handling](#error-handling)

#### [✅ Do](#do-3)

-   **Implement retry logic** - Retry failed requests with exponential backoff
-   **Handle all error codes** - Implement proper error handling for all HTTP status codes
-   **Log errors appropriately** - Log errors with sufficient context for debugging
-   **Provide user feedback** - Give users meaningful error messages

#### [❌ Don't](#dont-3)

-   **Ignore errors** - Always handle API errors gracefully
-   **Retry indefinitely** - Implement maximum retry limits
-   **Expose internal errors** - Don't expose sensitive error details to users

## [📝 Code Quality Best Practices](#code-quality-best-practices)

### [Code Organization](#code-organization)

#### [✅ Do](#do-4)

-   **Use consistent naming** - Follow consistent naming conventions
-   **Write self-documenting code** - Use clear variable and function names
-   **Add comments** - Document complex logic and business rules
-   **Follow DRY principles** - Don't repeat yourself, extract common functionality
-   **Use version control** - Commit changes frequently with descriptive messages

#### [❌ Don't](#dont-4)

-   **Write monolithic functions** - Break down complex functions into smaller ones
-   **Use magic numbers** - Use named constants instead of hardcoded values
-   **Ignore code reviews** - Always have code reviewed by peers

### [Testing](#testing)

#### [✅ Do](#do-5)

-   **Write unit tests** - Test individual functions and methods
-   **Write integration tests** - Test API integrations end-to-end
-   **Mock external dependencies** - Use mocks for external API calls in tests
-   **Test error scenarios** - Test both success and failure cases
-   **Automate testing** - Use CI/CD pipelines for automated testing

#### [❌ Don't](#dont-5)

-   **Skip testing** - Always test your code before deployment
-   **Test only happy paths** - Test error conditions and edge cases
-   **Ignore test failures** - Fix failing tests before merging code

## [🔄 API Integration Best Practices](#api-integration-best-practices)

### [Request/Response Handling](#requestresponse-handling)

#### [✅ Do](#do-6)

-   **Use appropriate HTTP methods** - GET for reading, POST for creating, PUT for updating, DELETE for removing
-   **Include proper headers** - Set Content-Type, Accept, and User-Agent headers
-   **Handle timeouts** - Set appropriate timeout values for API calls
-   **Validate responses** - Always validate API response data
-   **Use idempotent operations** - Make operations idempotent when possible

#### [❌ Don't](#dont-6)

-   **Use GET for mutations** - Don't use GET requests for operations that change data
-   **Ignore response codes** - Always check HTTP status codes
-   **Assume response format** - Don't assume API response structure without validation

### [Data Management](#data-management)

#### [✅ Do](#do-7)

-   **Use consistent data formats** - Follow established data format standards
-   **Implement data validation** - Validate data before sending to APIs
-   **Handle data migrations** - Plan for API version changes and data migrations
-   **Backup important data** - Implement proper backup strategies

#### [❌ Don't](#dont-7)

-   **Send invalid data** - Always validate data before API calls
-   **Ignore data consistency** - Ensure data consistency across systems
-   **Store unnecessary data** - Only store data that you actually need

## [🛠️ Development Workflow Best Practices](#️-development-workflow-best-practices)

### [Environment Management](#environment-management)

#### [✅ Do](#do-8)

-   **Use environment variables** - Store configuration in environment variables
-   **Separate environments** - Use different environments for development, staging, and production
-   **Document environment setup** - Provide clear setup instructions
-   **Use configuration management** - Use tools like Docker or Kubernetes for consistent environments

#### [❌ Don't](#dont-8)

-   **Mix environment configs** - Don't use production configs in development
-   **Hardcode environment values** - Use configuration files or environment variables
-   **Skip environment testing** - Test in staging before production deployment

### [Deployment](#deployment)

#### [✅ Do](#do-9)

-   **Use CI/CD pipelines** - Automate build, test, and deployment processes
-   **Implement blue-green deployments** - Use zero-downtime deployment strategies
-   **Monitor deployments** - Monitor application health after deployments
-   **Rollback quickly** - Have rollback procedures ready

#### [❌ Don't](#dont-9)

-   **Deploy without testing** - Always test changes before production deployment
-   **Ignore deployment failures** - Monitor and address deployment issues promptly

## [📊 Monitoring & Observability](#monitoring-observability)

### [Logging](#logging)

#### [✅ Do](#do-10)

-   **Use structured logging** - Use JSON or structured log formats
-   **Include correlation IDs** - Add correlation IDs to track requests across services
-   **Log at appropriate levels** - Use DEBUG, INFO, WARN, ERROR levels appropriately
-   **Include context** - Add relevant context to log messages

#### [❌ Don't](#dont-10)

-   **Log sensitive data** - Never log passwords, tokens, or personal information
-   **Over-log** - Don't log excessive information that impacts performance
-   **Ignore log levels** - Use appropriate log levels for different types of messages

### [Metrics & Monitoring](#metrics-monitoring)

#### [✅ Do](#do-11)

-   **Monitor key metrics** - Track response times, error rates, and throughput
-   **Set up alerts** - Configure alerts for critical issues
-   **Use health checks** - Implement health check endpoints
-   **Monitor dependencies** - Track the health of external dependencies

#### [❌ Don't](#dont-11)

-   **Ignore performance metrics** - Monitor application performance continuously
-   **Set up noisy alerts** - Configure alerts to avoid false positives
-   **Monitor only errors** - Monitor both success and failure metrics

## [🔧 Tooling & Automation](#tooling-automation)

### [Development Tools](#development-tools)

#### [✅ Do](#do-12)

-   **Use API clients** - Use official SDKs and client libraries when available
-   **Use API testing tools** - Use tools like Postman or Insomnia for API testing
-   **Use code formatters** - Use automated code formatting tools
-   **Use linters** - Use static analysis tools to catch issues early

#### [❌ Don't](#dont-12)

-   **Ignore tooling** - Use available tools to improve development efficiency
-   **Use outdated tools** - Keep development tools up to date
-   **Skip code quality tools** - Use linters and formatters consistently

### [Documentation](#documentation)

#### [✅ Do](#do-13)

-   **Document APIs** - Keep API documentation up to date
-   **Write clear README files** - Provide clear setup and usage instructions
-   **Document decisions** - Document architectural and design decisions
-   **Keep examples current** - Update code examples when APIs change

#### [❌ Don't](#dont-13)

-   **Skip documentation** - Always document your code and APIs
-   **Write outdated docs** - Keep documentation synchronized with code changes
-   **Ignore user feedback** - Update documentation based on user feedback

## [🚨 Common Anti-Patterns to Avoid](#common-anti-patterns-to-avoid)

### [Security Anti-Patterns](#security-anti-patterns)

-   **Hardcoded credentials** - Never hardcode API keys or passwords
-   **Insecure token storage** - Don't store tokens in localStorage or cookies
-   **Missing input validation** - Always validate and sanitize inputs
-   **Insecure communication** - Never use HTTP for sensitive data

### [Performance Anti-Patterns](#performance-anti-patterns)

-   **N+1 queries** - Avoid making multiple API calls in loops
-   **Synchronous blocking** - Don't block the main thread on API calls
-   **No caching** - Implement caching for frequently accessed data
-   **Ignoring rate limits** - Always respect API rate limits

### [Code Quality Anti-Patterns](#code-quality-anti-patterns)

-   **All-powerful objects** - Don't create classes or functions that do too much
-   **Copy-paste programming** - Don't duplicate code, extract common functionality
-   **Magic numbers** - Use named constants instead of hardcoded values
-   **No error handling** - Always handle errors gracefully

## [📚 Additional Resources](#additional-resources)

### [Documentation](#documentation-1)

-   [API Overview](https://internal-developer-portal.agentsync.io/apis) - Complete list of available APIs

### [Resources](#resources)

-   [OAuth 2.0 RFC](https://tools.ietf.org/html/rfc6749) - Official OAuth 2.0 specification
-   [REST API Design](https://restfulapi.net/) - REST API design principles
-   [HTTP Status Codes](https://httpstatuses.com/) - Complete HTTP status code reference
-   [API Security Best Practices](https://owasp.org/www-project-api-security/) - OWASP API security guidelines

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**Need help implementing these practices?** Reach out to the development team in `#api-support`.