multipart PUT request using AFNetworking

Question

What's the correct way to code a multipart PUT request using AFNetworking on iOS? (still Objective-C, not Swift)

I looked and seems like AFNetworking can do multipart POST but not PUT, what's the solution for that?

Thanks

Answer 1

You can use multipartFormRequestWithMethod to create a multipart PUT request with desired data.

For example, in AFNetworking v3.x:

AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

NSError *error;
NSURLRequest *request = [manager.requestSerializer multipartFormRequestWithMethod:@"PUT" URLString:@"http://example.com/rest/api/" parameters:@{@"foo" : @"bar"} constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
    NSString *value = @"qux";
    NSData *data = [value dataUsingEncoding:NSUTF8StringEncoding];
    [formData appendPartWithFormData:data name:@"baz"];
} error:&error];

NSURLSessionDataTask *task = [manager dataTaskWithRequest:request uploadProgress:nil downloadProgress:nil completionHandler:^(NSURLResponse * _Nonnull response, id  _Nullable responseObject, NSError * _Nullable error) {
    if (error) {
        NSLog(@"%@", error);
        return;
    }

    // if you want to know what the statusCode was

    if ([response isKindOfClass:[NSHTTPURLResponse class]]) {
        NSInteger statusCode = [(NSHTTPURLResponse *)response statusCode];
        NSLog(@"statusCode: %ld", statusCode);
    }

    NSLog(@"%@", responseObject);
}];
[task resume];

---

If AFNetworking 2.x, you can use AFHTTPRequestOperationManager:

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

NSError *error;
NSURLRequest *request = [manager.requestSerializer multipartFormRequestWithMethod:@"PUT" URLString:@"http://example.com/rest/api/" parameters:@{@"foo" : @"bar"} constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
    NSString *value = @"qux";
    NSData *data = [value dataUsingEncoding:NSUTF8StringEncoding];
    [formData appendPartWithFormData:data name:@"baz"];
} error:&error];

AFHTTPRequestOperation *operation = [manager HTTPRequestOperationWithRequest:request success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"%@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"%@", error);
}];

[manager.operationQueue addOperation:operation];

---

Having illustrated how one could create such a request, it's worth noting that servers may not be able to parse them. Notably, PHP parses multipart POST requests, but not multipart PUT requests.

Answer 2

Here is code for Afnetworking 3.0 and Swift that worked for me. I know its old thread but might be handy for someone!

    let manager: AFHTTPSessionManager = AFHTTPSessionManager()

    let URL = "\(baseURL)\(url)"        

    let request: NSMutableURLRequest = manager.requestSerializer.multipartFormRequestWithMethod("PUT", URLString: URL, parameters: parameters as? [String : AnyObject], constructingBodyWithBlock: {(formData: AFMultipartFormData!) -> Void in
        formData.appendPartWithFileData(image!, name: "Photo", fileName: "photo.jpg", mimeType: "image/jpeg")
        }, error: nil)

    manager.dataTaskWithRequest(request) { (response, responseObject, error) -> Void in

        if((error == nil)) {
            print(responseObject)
            completionHandler(responseObject as! NSDictionary,nil)
        }
        else {
            print(error)
            completionHandler(nil,error)
        }

        print(responseObject)
        }.resume()