Multipart/form-data
multipart/form-data is an HTTP media type that encodes form fields and files as independently typed parts within one message.
Django in Action
multipart/form-data is an HTTP media type for encoding form fields and uploaded files as separate parts of one request body.
- How it is used
- Enables Django forms to submit uploaded pictures alongside ordinary venue fields.
- How deep it goes
- Explains template and view wiring for ModelForm uploads without descending into multipart wire-format internals.
- Examples
- Uses a venue add/edit form that uploads a picture with name and description fields.
- What you can do after
- Apply it via Django ModelForm by setting enctype and passing request.FILES alongside request.POST.
Build Financial Software with Generative AI (From Scratch)
Multipart/form-data is a media encoding format that packages one or more form fields or files into separate parts of an HTTP request.
- How it is used
- Handles HTTP file uploads so ACH files can enter an application before parsing and downstream validation.
- How deep it goes
- Explains request parsing, dependency installation, endpoint handling, testing, and persistence, but not multipart boundary internals.
- Examples
- Uses an ACH file, FastAPI upload tests, UploadFile, python-multipart, and an MD5-based file record.
- What you can do after
- Apply it via FastAPI by installing python-multipart, accepting UploadFile, testing multipart requests, and storing upload metadata.
Read how Build Financial Software with Generative AI (From Scratch) explains multipart/form-data →
The Design of Web APIs, Second Edition
multipart/form-data is an HTTP media type that packages multiple independently typed parts, including form fields and binary files, in one message.
- How it is used
- Packages form metadata and binary files into one upload request when consumers or implementations cannot use multiple calls.
- How deep it goes
- Defines boundaries, repeated parts, media types, and OpenAPI encoding, but defers detailed implementation behavior to HTTP libraries.
- Examples
- Uses account applications, applicant names, JSON data, identity documents, residence PDFs, and repeated documents parts.
- What you can do after
- Apply it to design single-call file uploads and document their parts with OpenAPI.
Read how The Design of Web APIs, Second Edition explains multipart/form-data →
Related concepts
- request messageused by · An HTTP request is a message sent by a client to a server that specifies a method and target and may include headers and a body.
- python-multipartuses · python-multipart is a Python package for parsing multipart form-data request bodies.
- MIME typekind of · 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.
- HTMLconfigures · HTML (HyperText Markup Language) is the standard markup language for structuring content and elements in web documents.
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