api: "YAML JSON TOON Database" version: 1.0.0 format: json dataset: slug: http-request-headers title: "HTTP Request Headers" description: "Common HTTP request headers and their purposes." category: "Web Technologies" category_slug: web-technologies tags: "web,http,headers,request,api" view_count: 0 data [12]{header,description,example}: Accept,"Content types the client can process.","application/json, text/html" Accept-Language,"Preferred languages for the response.","en-US, en;q=0.9" Accept-Encoding,"Acceptable content encodings.","gzip, deflate, br" Authorization,"Credentials for authentication.","Bearer eyJhbGci..." Cache-Control,"Caching directives for request and response.","no-cache, max-age=3600" Content-Type,"Media type of the request body.","application/json; charset=utf-8" Content-Length,"Size of the request body in bytes.",1234 Cookie,"Previously set cookies to send back to the server.",session_id=abc123 Host,"Domain name of the server.",api.example.com User-Agent,"Client application identifier.","Mozilla/5.0 ..." X-Request-ID,"Custom header for request tracing.",req-abc123def456 If-None-Match,"Conditional request using ETag.","\"33a64df551425fcc55e4d42a148795d9f25f89d4\""