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POObjective C Post Multipart/data Text Error
 

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  1. POObjective C Post Multipart/data Text Error
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    <p>I have a problem with an <code>http Post request</code> the situation is follows:</p> <p>I have to send a post request with text and Img here the code:</p> <pre><code>NSMutableURLRequest *eventRequest = [NSMutableURLRequest requestWithURL:_urlRequest cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:500]; NSString *boundary = @"---------------------------14737809831466499882746641449"; //Set header Http POST [eventRequest setHTTPMethod:@"POST"]; [eventRequest setValue:[NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary]forHTTPHeaderField:@"Content-Type"]; NSMutableData *body = [NSMutableData data]; [body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"parameter1\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[self postParametre] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; //Image upload [body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[@"Content-Type: immage/jpg \r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[@"Content-Disposition: form-data; filename=\"immagine.jpg\""dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:data]; [body appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; // Close boundary [body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; // set request body [eventRequest setHTTPBody:body]; NSString* string = [[NSString alloc] initWithData:body encoding:NSUTF8StringEncoding]; NSLog(@"Stampa Dati inviati: %@", string); // Http header Content-Lenght [eventRequest setValue:[NSString stringWithFormat:@"%i",[data length]] forHTTPHeaderField:@"Content-Length"]; self.theConnection=[[NSURLConnection alloc] initWithRequest:eventRequest delegate:self]; if (self.theConnection) { self.receivedData = [[NSMutableData data] retain]; } else { // Inform the user that the connection failed. NSLog(@"Connection Problem"); } </code></pre> <p>can see that i set the i set the multipart/form-data for <code>"Content-Type"</code> in the first part of body i set che text and in the second i set the image, but the image was upload correctly but without the "extension" and in the first i set the text to send but the text apparently was not set or the format was not read to server.</p> <p>the method <code>[self postParametre]</code> return a <code>NSMutableString</code> with this format "key1=value1&amp;key2=value2&amp;key3=value3".</p> <p>anyone can help me?</p> <p>regards.</p>
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    1. USIshank Dubey
    1. USEloreden
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    1. COAt the first glance, there seems no error. But hand-crafting a multipart form request is error prone. You might check with NSURLConnection's `canHandleRequest` whether the request is valid. Though the method cannot confirm this for 100%. Also, please check and NSLog all errors you can get. Also, take the constructed data, convert it to a string and print it to the console (with a zero size image) and hand check the boundaries and those stuff.
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      1. USCouchDeveloper
    2. COI also expect you have implemented all the delegate methods properly, did you? ;)
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      1. USCouchDeveloper
 

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