how to post parameter like {"register_id":"3"} in AFNetworking

Question

i tried it but didn't work in AFNetworking only showing parameters error but i used postman to check and when i send data via key and value it showing error but from raw data i send {"register_id":"3"} then it will show me data so how to post parameter like this in AFNetworking.

using This Link

http://www.icubemedia.net/visitorbook/display_all.php

is any one can help me for that how to post that data

log error is:

2015-06-19 14:05:08.078 DemoAFNetworking[72771:1160924] {"msg":"parameter missing!"}

Answer 1

Check this example on how to do a GET with simple parameter with AFNetworking 2.0:

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.requestSerializer = [AFJSONRequestSerializer serializer];
NSDictionary *parameters = @{@"foo": @"bar"};

[manager GET:@"http://example.com/resources.json" parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"JSON: %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];

EDIT 1: added JSON serializer ;)

Answer 2

Indeed there are no parameters missing, the fact that the request worked in Postman was the key. On the one hand, you should be trying to POST to that URL, not GET. On the other hand, since you are sending a JSON, you need the appropriate serializer.

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
//JSON Serializer
manager.requestSerializer = [AFJSONRequestSerializer serializer];
NSDictionary *parameters = @{@"register_id": @"3"};

[manager POST:@"http://www.icubemedia.net/visitorbook/display_all.php" parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {
  NSLog(@"JSON: %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
  NSLog(@"Error: %@", error);
}];