Module multipart 

Multipart form data parser.

This module provides streaming parsing of multipart/form-data requests, which is the standard encoding for file uploads.

Format

Multipart form data consists of multiple parts separated by a boundary string:

--boundary\r\n
Content-Disposition: form-data; name="field1"\r\n
\r\n
value1\r\n
--boundary\r\n
Content-Disposition: form-data; name="file"; filename="example.txt"\r\n
Content-Type: text/plain\r\n
\r\n
file contents...\r\n
--boundary--\r\n

Features

• Streaming parser that doesn’t buffer entire body
• Per-file and total size limits
• Extracts filename, content-type, and field name
• Memory-safe: enforces limits before allocating

Structs

MultipartConfig

Configuration for multipart parsing.

MultipartForm

Parsed multipart form data.

MultipartParser

Streaming multipart parser.

Part

A parsed multipart form part.

UploadFile

An uploaded file with metadata.

Enums

MultipartError

Errors that can occur during multipart parsing.

Constants

DEFAULT_MAX_FIELDS

Default maximum number of fields.

DEFAULT_MAX_FILE_SIZE

Default maximum file size (10MB).

DEFAULT_MAX_TOTAL_SIZE

Default maximum total upload size (50MB).

Functions

parse_boundary

Parse boundary from Content-Type header.