Download image using AFNetworking 3.0

Question

I tried to download the image using AFNetworking3.0. I tried to find how to load an image from all stackoverflow and tutorials, but all of them relate to AFNetworking2.0 and below. The focus is on the fact that I'm going to upload an image to a website.

Once the image is uploaded, the URL of the image must exist on the website.

Please see the code below.

AFHTTPRequestOperationManager *requestManager; [requestManager POST:KAPIUploadOutfit parameters:params constructingBodyWithBlock:^(id<AFMultipartFormData> formData) { [formData appendPartWithFileURL:fileURL name:@"photo_url" fileName:filename mimeType:@"image/png" error:nil]; } success:^(AFHTTPRequestOperation *operation, id responseObject) { successCB(responseObject); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { errorCB(CONNECTION_ERROR); }]; 

I'm not sure what this parameter is. Please tell me how to do this.

Answer 1

 NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://example.com/upload" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) { [formData appendPartWithFileURL:[NSURL fileURLWithPath:@"file://path/to/image.jpg"] name:@"file" fileName:@"filename.jpg" mimeType:@"image/jpeg" error:nil]; } error:nil]; AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; NSURLSessionUploadTask *uploadTask; uploadTask = [manager uploadTaskWithStreamedRequest:request progress:^(NSProgress * _Nonnull uploadProgress) { // This is not called back on the main queue. // You are responsible for dispatching to the main queue for UI updates dispatch_async(dispatch_get_main_queue(), ^{ //Update the progress view [progressView setProgress:uploadProgress.fractionCompleted]; }); } completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error) { if (error) { NSLog(@"Error: %@", error); } else { NSLog(@"%@ %@", response, responseObject); } }]; [uploadTask resume]; 

In this code, http://example.com/upload api, where the image will be uploaded, and file: // path / to / image. jpg is your local image path.

Answer 2

In AFNetworking 3.0, the download task works as follows.

  NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://example.com/upload" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) { [formData appendPartWithFileURL:[NSURL fileURLWithPath:@"file://path/to/image.jpg"] name:@"file" fileName:@"filename.jpg" mimeType:@"image/jpeg" error:nil]; } error:nil]; AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; NSURLSessionUploadTask *uploadTask; uploadTask = [manager uploadTaskWithStreamedRequest:request progress:^(NSProgress * _Nonnull uploadProgress) { // This is not called back on the main queue. // You are responsible for dispatching to the main queue for UI updates dispatch_async(dispatch_get_main_queue(), ^{ //Update the progress view [progressView setProgress:uploadProgress.fractionCompleted]; }); } completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error) { if (error) { NSLog(@"Error: %@", error); } else { NSLog(@"%@ %@", response, responseObject); } }]; [uploadTask resume]; 

For a complete guide, please check the AFNetworking Guide . I hope this solves your problem.