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Rohit Cdy
Rohit Cdy

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Third-party API Integration using ASP.Net Core web API.

Third-party API integration guidelines

Third-party API integration guidelines

  • Identify the API

Read their documentation thoroughly and understand its features, authentication requirements, and request and response formats.

  • Create a Separate Service

Create a separate service or class to encapsulate the logic related to the third-party API integration. This will help to keep the code organized and maintainable.

  • Add necessary dependencies

If the third-party API requires additional dependencies or SDKs, install them using NuGet packages in our ASP.Net Core Web API.

  • Handle authentication

Determine the authentication mechanism required by the third-party API. Implement the necessary authentication logic in our service. Store any sensitive information such as API keys or secrets in a secure configuration store, like environment variables.

  • Make HTTP Requests

Use the HttpClient class in ASP.NET Core to send HTTP requests to the third-party API. Construct the request payload and headers according to the API documentation. You can use the System.Net.Http namespace for this purpose.

  • Handle Responses

Handle the responses from the third-party API by parsing the returned data according to the API documentation. If needed, map the response data to your domain models or DTOs (Data Transfer Objects).

  • Error handling

Implement error handling logic to handle any exceptions or error responses from the third-party API. Consider implementing retries for temporary failures or rate-limited scenarios. You can use policies provided by libraries like Polly to handle retries and transient errors.

  • Caching and rate limiting

If the third-party API has rate limits or if you want to optimize performance, consider implementing caching mechanisms to store and reuse API responses. Caching can be done using an in-memory cache or distributed cache options like Redis.

  • Unit Testing

Write unit tests for your service to ensure that the integration with the third-party API works as expected. You can use mocking frameworks like Moq to mock the API responses and test various scenarios.

  • Logging and Monitoring

Implement logging to record any important events, errors, or debug information related to the integration with the third-party API. Consider using a logging framework like Serilog or the built-in logging capabilities of ASP.NET Core. Additionally, you can monitor API usage and performance using tools like Application Insights.

These are the guidelines for third-party API integration.
I will provide code implementation in the next part.

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