MIME type
A standardized media-type identifier, typically written as a type and subtype, that describes the format and general nature of data in a resource or message.
Go in Practice, Second Edition
A MIME type is a media-type identifier that describes the format of a file or other data, such as image/png or application/octet-stream.
- How it is used
- Validates uploaded files, classifies HTTP responses, and negotiates representations or API versions.
- How deep it goes
- Compares header, extension, and content inspection approaches, then demonstrates Go HTTP handling without detailing MIME registration.
- Examples
- Uses image/png, application/octet-stream, extension mapping, byte inspection, JSON errors, and versioned vendor media types.
- What you can do after
- Diagnose and implement file-type checks and HTTP representation handling with Go's multipart, mime, and net/http APIs.
Read how Go in Practice, Second Edition explains MIME type →
The Design of Web APIs, Second Edition
A media type is a standardized identifier describing the format and general nature of data exchanged in an HTTP message.
- How it is used
- Uses media types to describe HTTP payloads, negotiate representations, and make API formats clear to consumers and documentation tools.
- How deep it goes
- Explains declarations, headers, negotiation, alternate representations, and file formats, but defers detailed schema definitions and unsupported-format handling.
- Examples
- Uses JSON product requests, CSV transaction responses, XML transfers, hypermedia representations, and PDF, PNG, and JPEG file uploads.
- What you can do after
- Designs and documents API payload formats, then negotiates suitable representations through Accept and Content-Type headers.
Read how The Design of Web APIs, Second Edition explains MIME type →
Related concepts
- media()used by · media() is a Spring AI user-message specification method that attaches media content and its MIME type to a prompt.
- string literalkind of · A string literal is source-code notation that directly represents a string value.
- multipart/form-dataincludes · multipart/form-data is an HTTP media type that encodes form fields and files as independently typed parts within one message.
- JSONequivalent to · JSON is a standardized, language-independent text format for representing structured data using objects, arrays, strings, numbers, Boolean values, and null.
- content negotiationused by · Content negotiation is the HTTP process by which a client and server select a mutually supported representation format, language, or version.
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