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POPOST with multiple parameters in AFNetworking V2.0
 

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  1. POPOST with multiple parameters in AFNetworking V2.0
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    <p>I am updating some (rather old) ASIHTTPRequest code to AFNetworking V2.0. </p> <p>Now I am dealing with a POST request that uploads an NSDictionary with extra parameters for the request. </p> <p>Here is what the ASIHTTPRequest code looks like: </p> <pre><code>NSMutableData* mPostData = [NSMutableData dataWithData:[postData dataUsingEncoding:NSUTF8StringEncoding]]; NSString *msgLength = [NSString stringWithFormat:@"%d", [postData length]]; [r setPostBody: mPostData]; [r addRequestHeader: @"Content-Length" value:msgLength]; } </code></pre> <p>postData is an NSDictionary that has keys / values - which is based on the action taken. For example - uploading an image will have extra parameters. Completing a user registration will have different parameters - but use the same method this code is found in. </p> <p>The delegate calls this bit of code: </p> <pre><code>//Request must be ASIFormDataRequest - (BOOL) addFileWithPath:(NSString*) filePath fileName: (NSString*)fileName ofType: (NSString*) fileType withKey: (NSString*) fileKey uploadProgressDelegate:(id) uploadProgressDelegate { if ([request isKindOfClass:[ASIFormDataRequest class]]) { ASIFormDataRequest *formRequest = (ASIFormDataRequest *) request; NSLog(@"%@ %@ %@ %@",filePath,fileName,fileType,fileKey); if (uploadProgressDelegate) { [formRequest setUploadProgressDelegate:uploadProgressDelegate]; } NSLog(@"filename = %@",fileName); [formRequest setFile:filePath withFileName:fileName andContentType:fileType forKey:fileKey]; return YES; } else { NSLog(@"WebService must be initialised with PostDataValuesAndKeys so that ASIFormDataRequest is made"); return NO; } } </code></pre> <p>Now from the amount of digging I have done - I can only see this bit of <code>AfNwtworking</code> code - which looks to me like it's from version 1.x </p> <pre><code>NSString *urlString = @"yourUrl"; NSURL* url = [NSURL URLWithString:urlString]; AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url]; NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; NSURL *localVideoURL = [NSURL URLWithString:[userDefaults objectForKey:@"videoURL"]]; NSData *videoData = [NSData dataWithContentsOfURL:localVideoURL]; NSMutableURLRequest *request = [httpClient multipartFormRequestWithMethod:@"POST" path:nil parameters:nil constructingBodyWithBlock: ^(id &lt;AFMultipartFormData&gt;formData) { [formData appendPartWithFileData:videoData name:@"video_file" fileName:@"testvideo.mov" mimeType:@"video/quicktime"]; [formData appendPartWithFormData:[[BAUserInfoParser userInfoJson] dataUsingEncoding:NSUTF8StringEncoding] name:@"userInfo"]; [formData appendPartWithFormData:[[userDefaults objectForKey:@"transactionReceiptData"] dataUsingEncoding:NSUTF8StringEncoding] name:@"transactionData"]; }]; AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request]; [operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) { // NSLog(@"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite); float uploadPercentge = (float)totalBytesWritten / (float)totalBytesExpectedToWrite; float uploadActualPercentage = uploadPercentge *100; [lblUploadInfoText setText:[NSString stringWithFormat:@"%.2f %%",uploadActualPercentage]]; if (uploadActualPercentage &gt;= 100) { lblStatus.text = @"Waitting for response ..."; } progressBar.progress = uploadPercentge; }]; [httpClient enqueueHTTPRequestOperation:operation]; [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) { lblStatus.text = @"Upload Complete"; NSData *JSONData = [operation.responseString dataUsingEncoding:NSUTF8StringEncoding]; NSDictionary *jsonObject = [NSJSONSerialization JSONObjectWithData:JSONData options:NSJSONReadingMutableContainers error:nil]; } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"error: %@", operation.responseString); NSLog(@"%@",error); }]; [operation start]; } </code></pre> <p>In version 2 of <code>AFNetworking</code> - there are new convenience methods for this sort of this: </p> <p>Here is the POST method with extra block.. </p> <pre><code>[self.manager POST:url parameters:urlParameters constructingBodyWithBlock:^(id&lt;AFMultipartFormData&gt; formData) { // postData } } success:^(NSURLSessionDataTask *task, id responseObject) { //Success } failure:^(NSURLSessionDataTask *task, NSError *error) { //Failure }]; </code></pre> <p>However its the constructingBodyWithBlock I am having an issue with. I'm not sure what I need to do to take a NSDictionary object and upload it in that block. </p>
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    1. PTQuestion
    1. UShalfer
    1. USTander
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      1. POPOST with multiple parameters in AFNetworking V2.0
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    1. COWhat do you require as the Content-Type for the body data of the POST request? Note: AFN will use "application/x-www-form-urlencoded" in the convenient POST method. This is not the same as you used in ASIFormDataRequest.
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      1. USCouchDeveloper
    2. CO@CouchDeveloper the content-type needs to be same as I have used in ASIFormDataRequest.
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      1. USTander
    3. COOK, then try the POST convenient method. Put your parameters as a dictionary in the _parameters_ parameter. This will become the first part of a multipart message, whose content type is "application/x-www-form-urlencoded". The second part will become whatever you implement in the block. Something along this `[formData appendPartWithFileURL:filePath name:@"image" error:nil];` will add a file. The part's Content-Type will be determined automatically.
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      1. POPOST with multiple parameters in AFNetworking V2.0
      1. USCouchDeveloper
 

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