Created
April 23, 2018 13:50
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struct MultipartRequest { | |
private let boundary = UUID().uuidString | |
private var bodyString: String = "" | |
private var body = Data() | |
var request: URLRequest | |
init( | |
url: URL, | |
params: [String: Any], | |
imageFiles: [String: NewImage]?, | |
documentFiles: [String: NewDocument]? | |
) { | |
let userAgent = "\(Bundle.applicationName)/\(Bundle.applicationVersionNumber); iOS/\(UIDevice.current.systemVersion))" | |
request = URLRequest(url: url) | |
request.httpMethod = "POST" | |
request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type") | |
request.setValue(userAgent, forHTTPHeaderField: "User-Agent") | |
buildBodyString(forParams: params) | |
if let images = imageFiles { addImageFiles(images) } | |
if let documents = documentFiles { addDocumentFiles(documents) } | |
body.append("\r\n--\(boundary)--\r\n".data(using: String.Encoding.utf8, allowLossyConversion: false)!) | |
request.httpBody = body | |
} | |
private mutating func buildBodyString(forParams params: [String: Any]) { | |
bodyString += "--\(boundary)\n" | |
bodyString += "Content-Disposition: form-data; name=\"api_key\"\r\n\r\n" | |
bodyString += "\(RTAPIKey)\n" | |
bodyString += "--\(boundary)\n" | |
bodyString += "Content-Disposition: form-data; name=\"auth_key\"\r\n\r\n" | |
bodyString += "\(Preferences.authKey)\n" | |
for (key, value) in params { | |
bodyString += "--\(boundary)\n" | |
bodyString += "Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n" | |
bodyString += "\(value)\n" | |
} | |
body.append(bodyString.data(using: String.Encoding.utf8, allowLossyConversion: false)!) | |
print(bodyString) | |
} | |
private mutating func addImageFiles(_ files: [String: NewImage]) { | |
for (key, value) in files { | |
body.append("--\(boundary)\n".data(using: String.Encoding.utf8)!) | |
body.append("Content-Disposition: form-data; name=\"\(key)\"; filename=\"\(value.fileName)\"\n".data(using: String.Encoding.utf8)!) | |
body.append("Content-Type: \(value.mimeType)\r\n\r\n".data(using: String.Encoding.utf8)!) | |
let fileExtension = ImageFileExtension(rawValue: value.fileExtension) | |
switch fileExtension! { | |
case .PNG: body.append(UIImagePNGRepresentation(value.image.resized)!) | |
case .JPEG, .JPG, .HEIC: body.append(UIImageJPEGRepresentation(value.image.resized, GlobalConstants.imageQuality)!) | |
body.append("\r\n".data(using: String.Encoding.utf8)!) | |
} | |
} | |
} | |
private mutating func addDocumentFiles(_ files: [String: NewDocument]) { | |
for (key, value) in files { | |
body.append("--\(boundary)\n".data(using: String.Encoding.utf8)!) | |
body.append("Content-Disposition: form-data; name=\"\(key))\"; filename=\"\(value.fileName)\"\n".data(using: String.Encoding.utf8)!) | |
body.append("Content-Type: \(value.mimeType)\r\n\r\n".data(using: String.Encoding.utf8)!) | |
body.append(try! Data(contentsOf: value.document.fileURL)) | |
body.append("\r\n".data(using: String.Encoding.utf8)!) | |
} | |
} | |
} |
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what classes are "NewDocument" and "NewImage"?