Twitter API 1.1-update_with_media返回500

Question

NSURL *url = [NSURL URLWithString:@"https://api.twitter.com/1.1/statuses/update_with_media.json"];

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30.0f];
[request setHTTPMethod:@"POST"];
[request setHTTPShouldHandleCookies:NO];

NSString *boundary = @"64F3EC90-E32B-4BD9-ADB4-E1A9FBE4AFD6";

NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
[request setValue:contentType forHTTPHeaderField:@"Content-Type"];

[self signRequest:request];  // Adding Oauth

NSMutableData *body = [NSMutableData dataWithLength:0];

// Adding tweet string
[body appendData:[[NSString stringWithFormat:@"--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
NSData *data = [[NSString stringWithFormat:@"%@\r\n",@"Uploading again test3"]dataUsingEncoding:NSUTF8StringEncoding];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n",@"status"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:data];

// Adding image
[body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Disposition: form-data; name=\"media[]\"; filename=\"test.jpg\"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Type: image/jpeg\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Transfer-Encoding: binary\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:imageData];

[body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];

// Set HTTPBody
[request setValue:@(body.length).stringValue forHTTPHeaderField:@"Content-Length"];
request.HTTPBody = body;

Answer 1

NSURL *baseURL = [NSURL URLWithString:url_statuses_update_with_media];

NSMutableDictionary *params = [NSMutableDictionary dictionary];
params[@"status"] = tweetString;
params[@"media[]"] = imageData;

[self sendPOSTRequestForURL:baseURL andParams:params];}                                    

NSString *boundary = @"64F3EC90-E32B-4BD9-ADB4-E1A9FBE4AFD6"; NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary]; [request setValue:contentType forHTTPHeaderField:@"Content-Type"]; [self signRequest:request]; NSMutableData *body = [NSMutableData dataWithLength:0]; for (NSString *key in params.allKeys) { id obj = params[key]; [body appendData:[[NSString stringWithFormat:@"--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]]; NSData *data = nil; [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n",key] dataUsingEncoding:NSUTF8StringEncoding]]; if ([obj isKindOfClass:[NSData class]]) { [body appendData:[@"Content-Type: application/octet-stream\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; data = (NSData *)obj; } else if ([obj isKindOfClass:[NSString class]]) { data = [[NSString stringWithFormat:@"%@",(NSString *)obj]dataUsingEncoding:NSUTF8StringEncoding]; } [body appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:data]; [body appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; } [body appendData:[[NSString stringWithFormat:@"--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]]; [request setValue:@(body.length).stringValue forHTTPHeaderField:@"Content-Length"]; request.HTTPBody = body;