Request/response structure

What it is

HTTP messages carry headers and an optional body.

When to use it

Understand transport independently of framework helpers.

Syntax

METHOD /path HTTP/1.1
Header: value

body

Example

POST /orders HTTP/1.1
Host: localhost:8000
Accept: application/json
Content-Type: application/json

{"reference":"ORD-42","total_cents":1250}

HTTP/1.1 201 Created
Content-Type: application/json

{"id":42}

Common mistakes

Content-Type describes the sent body; Accept requests the response format; never put credentials in URLs.

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