(Objective-C) Aruba Fatturazione Elettronica refresh

The token can be renewed by submitting a refresh request, which requires the following parameters in the format application/x-www-form-urlencoded with UTF-8 encoding. Refreshing the token, avoiding sending login details, offers more security and a more efficient process than requesting a new token via signin.

For more information, see https://fatturazioneelettronica.aruba.it/apidoc/docs_EN.html#auth-refresh

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#import <CkoHttp.h>
#import <CkoHttpRequest.h>
#import <CkoHttpResponse.h>
#import <CkoStringBuilder.h>
#import <CkoJsonObject.h>
#import <NSString.h>

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

CkoHttp *http = [[CkoHttp alloc] init];
BOOL success;

// Implements the following CURL command:

// curl -X POST https://auth.fatturazioneelettronica.aruba.it/auth/signin \
//   -H "Content-Type: application/x-www-form-urlencoded;charset=UTF-8" \
//   -d 'grant_type=refresh_token&refresh_token=ee4aae0c9d754ad08a657510cae82efe'

// Use the following online tool to generate HTTP code from a CURL command
// Convert a cURL Command to HTTP Source Code

CkoHttpRequest *req = [[CkoHttpRequest alloc] init];
req.HttpVerb = @"POST";
req.Path = @"/auth/signin";
req.ContentType = @"application/x-www-form-urlencoded";
[req AddParam: @"grant_type" value: @"refresh_token"];
[req AddParam: @"refresh_token" value: @"ee4aae0c9d754ad08a657510cae82efe"];

CkoHttpResponse *resp = [http PostUrlEncoded: @"https://auth.fatturazioneelettronica.aruba.it/auth/signin" req: req];
if (http.LastMethodSuccess == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

CkoStringBuilder *sbResponseBody = [[CkoStringBuilder alloc] init];
[resp GetBodySb: sbResponseBody];
CkoJsonObject *jResp = [[CkoJsonObject alloc] init];
[jResp LoadSb: sbResponseBody];
jResp.EmitCompact = NO;

NSLog(@"%@",@"Response Body:");
NSLog(@"%@",[jResp Emit]);

int respStatusCode = [resp.StatusCode intValue];
NSLog(@"%@%d",@"Response Status Code = ",respStatusCode);
if (respStatusCode >= 400) {
    NSLog(@"%@",@"Response Header:");
    NSLog(@"%@",resp.Header);
    NSLog(@"%@",@"Failed.");

    return;
}

// Sample JSON response:
// (Sample code for parsing the JSON response is shown below)

// {
//   "access_token": "29dba5b2e749e403",
//   "token_type": "bearer",
//   "expires_in": 1800,
//   "refresh_token": "5da9e6c31c8b9b24",
//   "userName": "Utente",
//   "as:client_id": "Auth",
//   ".issued": "Fri, 10 Jul 2020 07:20:00 GMT",
//   ".expires": "Fri, 10 Jul 2020 07:50:00 GMT"
// }

// Sample code for parsing the JSON response...
// Use the following online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON

NSString *access_token = [jResp StringOf: @"access_token"];
NSString *token_type = [jResp StringOf: @"token_type"];
int expires_in = [[jResp IntOf: @"expires_in"] intValue];
NSString *refresh_token = [jResp StringOf: @"refresh_token"];
NSString *userName = [jResp StringOf: @"userName"];
NSString *as_client_id = [jResp StringOf: @"as:client_id"];
NSString *v_issued = [jResp StringOf: @"\".issued\""];
NSString *v_expires = [jResp StringOf: @"\".expires\""];