HTTP topic

HTTP request content

Request content is meaningful only in the context of method semantics and the fields that describe it. Use this cluster to compare established and newer methods, understand browser preflights, and observe how servers receive request content.

Recommended foundation

Start here

This entry establishes the shared model used by the references, diagnostics, and experiments below.

Learn

Read HTTP messages without guessing

Read the parts of an HTTP message and know which details are shared across HTTP versions.

HTTP request content

Learn

1 reviewed entry

intermediate
Use the HTTP QUERY method for safe requests with content
Use QUERY when a safe, idempotent operation needs structured request content that does not fit naturally in a URI.

HTTP request content

Reference

2 reviewed entries

beginner
POST method
POST asks the target resource to process enclosed content according to that resource's semantics.
intermediate
QUERY method
QUERY asks a target resource to process enclosed query content safely and idempotently and return the result.

HTTP request content

Lab

2 reviewed entries

beginner
Observe a bounded HTTP request
Compare a request's method, bounded content size, and safely normalized field values.
intermediate
Observe an HTTP QUERY request
Run a safe cross-origin QUERY request and inspect the final response shared with JavaScript.

HTTP request content

Start here

Read HTTP messages without guessing

Learn

Use the HTTP QUERY method for safe requests with content

Reference

POST method

QUERY method

Lab

Observe a bounded HTTP request

Observe an HTTP QUERY request