HttpClient in Asp.net Core

The HttpClient class is a powerful and versatile tool in the .NET ecosystem for interacting with web-based resources over the HTTP protocol. You use it to send requests (GET, POST, PUT, DELETE, etc.) to APIs and retrieve responses containing data in various formats (JSON, XML, HTML).

Key Features of HttpClient
Sending Requests: Craft and send HTTP requests to any URL.
Receiving Responses: Process the server’s response (status code, headers, body content).
Async Operations: Designed for asynchronous programming, allowing your application to perform other tasks while waiting for network responses.
Customization: Configure request headers, timeouts, authentication, and more.

Using HttpClient in ASP.NET Core
While you can create and manage HttpClient instances directly, ASP.NET Core offers a more robust approach through the IHttpClientFactory interface. The factory handles the following for you:
Connection Pooling: Manages a pool of HTTP connections, optimizing performance and preventing socket exhaustion.
Lifetime Management: Ensures proper disposal of HttpClient instances to avoid resource leaks.
Named Clients: Lets you define and configure named clients for different APIs, each with its own settings (base address, headers, etc.).

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Environment Tag Helper in Asp.net Core

Understanding launchSettings.json in Asp.net Core

ASP.NET Core Environments

Service Lifetimes in Asp.net Core