HTTP Communication in ASP.NET Core
ASP.NET Core provides a rich set of tools for handling HTTP communication—both inbound and outbound. This root Snipp focuses on outbound HTTP requests using HttpClient
, IHttpClientFactory
, DelegatingHandler
, and related patterns. These features are critical for building resilient services that interact with external APIs and microservices.
Topics covered under this root:
- Configuring and using
HttpClient
withIHttpClientFactory
- Creating and chaining
DelegatingHandlers
- Implementing cross-cutting concerns (e.g., logging, retries, authentication)
- Best practices for performance, resilience, and testing
- Distinction between client-side handlers and server-side middleware
This section is essential for developers building cloud-native apps, microservices, or any service that consumes external APIs.
ASP.NET Core provides robust support for making outbound HTTP requests using HttpClient
, often via the IHttpClientFactory
. This section covers advanced features for managing these requests, including the use of DelegatingHandler
for building custom request/response pipelines. These handlers enable cross-cutting concerns like logging, authentication, and retries in a modular and testable way.
This section includes:
- Introduction to
DelegatingHandler
- Creating and registering custom handlers
- Chaining multiple handlers
- Practical use cases
- Differences between
DelegatingHandler
and middleware - Testing strategies for handlers
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