如何將字符串數據發佈到API

Question

我想將字符串數據發佈到API，我嘗試使用以下代碼將其發送到服務器。我使用郵遞員檢查了那裏的api，它沒有將字符串數據傳入服務器。我不知道這是什麼問題，需要幫助。

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:reqURLStr]]; 
    [request setHTTPMethod:@"POST"]; 

**//Pass The String to server** 
NSString *userUpdate =[NSString stringWithFormat:@"service_type=%@&ParcelSize=%@&ReceiverName=%@&MobileNumber=%@&Email=%@&DropOffHub=%@&PickupHub=%@" ,serviceType,pSize,rName,rMobile,rEmail,dropHubID,pickHubID]; 

NSData *data1 = [userUpdate dataUsingEncoding:NSUTF8StringEncoding]; 

[request setHTTPBody:data1]; 
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"]; 
[request setValue:[data makeRestAPICall:reqURLStr] forHTTPHeaderField:@"Authorization"]; 


NSError *err; 
NSURLResponse *response; 

NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err]; 

NSString *resSrt = [[NSString alloc]initWithData:responseData encoding:NSASCIIStringEncoding]; 


NSLog(@"got response==%@", resSrt); 
if(resSrt) 
{ 
    NSLog(@"got response"); 
} 
else 
{ 
    NSLog(@"fail to connect"); 
} 
return resSrt; 

Answer 1

答案很簡單

-(void)postJsonDataToServer{ 
NSDictionary *parameters = @{ 
           @"service_type": serviceType, 
           @"ParcelSize": pSize, 
           @"ReceiverName": rName, 
           @"MobileNumber": rMobile, 
           @"Email" : rEmail, 
           @"DropOffHub" : dropHubID, 
           @"PickupHub" : pickHubID 
           }; 

    NSData *data = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil]; 
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http:/api/order/add"]]; 
    [request setHTTPMethod:@"POST"]; 
    [request setValue:@"application/json;charset=UTF-8" forHTTPHeaderField:@"content-type"]; 
    NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; 
    NSURLSessionUploadTask *dataTask = [session uploadTaskWithRequest: request 
                  fromData:data completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) { 
                   if(data != nil) 
                   { 
                    NSError *parseError = nil; 
                    //If the response is in dictionary format 
                    NSDictionary *res = [NSJSONSerialization JSONObjectWithData:data options:0 error:&parseError]; 

                    //OR 
                    //If the response is in array format 
                    NSArray *res = [NSJSONSerialization JSONObjectWithData:data options:0 error:&parseError]; 

                    NSLog(@"The res is - %@",res); 

                   } 
                   else 
                    NSLog(@"Data returned the parameter is nil here"); 
                  }]; 
    [dataTask resume]; 


}