使用alamofire上传pdf文件

import Alamofire

let url = URL(string: "https://example.com/upload")!
let pdfPath = Bundle.main.path(forResource: "example", ofType: "pdf")!

let fileURL = URL(fileURLWithPath: pdfPath)
let headers: HTTPHeaders = [
    "Authorization": "Bearer your_access_token",
    "Content-type": "multipart/form-data"
]

AF.upload(multipartFormData: { multipartFormData in
    multipartFormData.append(fileURL, withName: "file")
}, to: url, method: .post, headers: headers)
.uploadProgress { progress in
    // Handle upload progress
    print("Upload Progress: \(progress.fractionCompleted)")
}
.responseJSON { response in
    switch response.result {
    case .success(let value):
        print("Success: \(value)")
    case .failure(let error):
        print("Error: \(error)")
    }
}