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https://github.com/FelixHerrmann/swift-multipart-formdata

Build multipart/form-data type-safe in Swift.
https://github.com/FelixHerrmann/swift-multipart-formdata

dsl multipart-formdata resultbuilder swift swiftpackage

Last synced: 14 days ago
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Build multipart/form-data type-safe in Swift.

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# MultipartFormData

[![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2FFelixHerrmann%2Fswift-multipart-formdata%2Fbadge%3Ftype%3Dplatforms)](https://swiftpackageindex.com/FelixHerrmann/swift-multipart-formdata)
[![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2FFelixHerrmann%2Fswift-multipart-formdata%2Fbadge%3Ftype%3Dswift-versions)](https://swiftpackageindex.com/FelixHerrmann/swift-multipart-formdata)
[![Swift](https://github.com/FelixHerrmann/swift-multipart-formdata/actions/workflows/swift.yml/badge.svg)](https://github.com/FelixHerrmann/swift-multipart-formdata/actions/workflows/swift.yml)
[![SwiftLint](https://github.com/FelixHerrmann/swift-multipart-formdata/actions/workflows/swiftlint.yml/badge.svg)](https://github.com/FelixHerrmann/swift-multipart-formdata/actions/workflows/swiftlint.yml)

Build multipart/form-data type-safe in Swift. A result builder DSL is also available.

## Installation

### [Swift Package Manager](https://swift.org/package-manager/)

Add the following to the dependencies of your `Package.swift`:

```swift
.package(url: "https://github.com/FelixHerrmann/swift-multipart-formdata.git", from: "x.x.x")
```

### Xcode

Add the package to your project as shown [here](https://developer.apple.com/documentation/swift_packages/adding_package_dependencies_to_your_app).

### Manual

Download the files in the [Sources](/Sources) folder and drag them into you project.

## Example

```swift
import MultipartFormData

let boundary = try Boundary(uncheckedBoundary: "example-boundary")
let multipartFormData = try MultipartFormData(boundary: boundary) {
Subpart {
ContentDisposition(name: "field1")
} body: {
Data("value1".utf8)
}
try Subpart {
ContentDisposition(name: "field2")
ContentType(mediaType: .applicationJson)
} body: {
try JSONSerialization.data(withJSONObject: ["string": "abcd", "int": 1234], options: .prettyPrinted)
}

let filename = "test.png"
let homeDirectory = FileManager.default.homeDirectoryForCurrentUser
let fileDirectory = homeDirectory.appendingPathComponent("Desktop").appendingPathComponent(filename)

if FileManager.default.fileExists(atPath: fileDirectory.path) {
try Subpart {
try ContentDisposition(uncheckedName: "field3", uncheckedFilename: filename)
ContentType(mediaType: .applicationOctetStream)
} body: {
try Data(contentsOf: fileDirectory)
}
}
}

let url = URL(string: "https://example.com/example")!
let request = URLRequest(url: url, multipartFormData: multipartFormData)
let (data, response) = try await URLSession.shared.data(for: request)
```

The generated HTTP request

```http
POST https://example.com/example HTTP/1.1
Content-Length: 428
Content-Type: multipart/form-data; boundary="example-boundary"

--example-boundary
Content-Disposition: form-data; name="field1"

value1
--example-boundary
Content-Disposition: form-data; name="field2"
Content-Type: application/json

{
"string" : "abcd",
"int" : 1234
}
--example-boundary
Content-Disposition: form-data; name="field3"; filename="test.png"
Content-Type: application/octet-stream

<>
--example-boundary--
```

## Documentation

For a detailed usage description, you can check out the [documentation](https://swiftpackageindex.com/FelixHerrmann/swift-multipart-formdata/master/documentation/multipartformdata).

![docs](https://user-images.githubusercontent.com/42500484/193477691-ff5fa9a7-8a3e-48bd-aade-a853144ab05f.png#gh-light-mode-only)
![docs](https://user-images.githubusercontent.com/42500484/193477695-cebe2417-6311-4ef0-bbe3-2e5217a89ab9.png#gh-dark-mode-only)

## License

MultipartFormData is available under the MIT license. See the [LICENSE](/LICENSE) file for more info.