(Objective-C) Isabel Connect Create First Access Token and Refresh Token

See more Ibanity Examples

Creates your first access token and refresh token. Once created, the refresh token can be used to get a new access token after it expires, or before it expires.

For more information, see https://documentation.ibanity.com/isabel-connect/api#create-refresh-token

Chilkat Objective-C Library Downloads MAC OS X (Cocoa) Libs iOS Libs

#import <CkoHttp.h>
#import <CkoCert.h>
#import <CkoHttpRequest.h>
#import <CkoCrypt2.h>
#import <NSString.h>
#import <CkoHttpResponse.h>
#import <CkoStringBuilder.h>
#import <CkoJsonObject.h>

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

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

// Implements the following CURL command:

// curl -X POST https://api.ibanity.com/isabel-connect/oauth2/token \
// --cert certificate.pem:qwertyuiop1 \
// --key private_key.pem  \
// -H "Content-Type: application/x-www-form-urlencoded" \
// -H "Accept: application/vnd.api+json" \
// -H "Ibanity-Idempotency-Key: af621a8f-f74b-41a2-b011-336997633df4"  \
// -d grant_type=authorization_code \
// -d code=valid_authorization_code \
// -d client_id=valid_client_id \
// -d client_secret=valid_client_secret \
// -d redirect_uri=https://fake-tpp.com 

// Ibanity provides the certificate + private key in PFX format.  This example will use the .pfx instead of the pair of PEM files.
// (It is also possible to implement using Chilkat with the PEM files, but PFX is easier.)
CkoCert *cert = [[CkoCert alloc] init];
BOOL success = [cert LoadPfxFile: @"qa_data/pfx/my_ibanity_certificate.pfx" password: @"my_pfx_password"];
if (success == NO) {
    NSLog(@"%@",cert.LastErrorText);
    return;
}

success = [http SetSslClientCert: cert];
if (success == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

CkoHttpRequest *req = [[CkoHttpRequest alloc] init];
req.HttpVerb = @"POST";
req.Path = @"/isabel-connect/oauth2/token";
req.ContentType = @"application/x-www-form-urlencoded";
[req AddParam: @"grant_type" value: @"authorization_code"];

// Note: For sandbox testing, we literally want to use the strings
// "valid_authorization_code", "valid_client_id", and "valid_client_secret".
// For the live app, you would replace these with actual values.
[req AddParam: @"code" value: @"valid_authorization_code"];
[req AddParam: @"client_id" value: @"valid_client_id"];
[req AddParam: @"client_secret" value: @"valid_client_secret"];
[req AddParam: @"redirect_uri" value: @"https://fake-tpp.com"];

[req AddHeader: @"Accept" value: @"application/vnd.api+json"];

CkoCrypt2 *crypt = [[CkoCrypt2 alloc] init];
NSString *idempotencyKey = [crypt GenerateUuid];
NSLog(@"%@%@",@"Ibanity-Idempotency-Key: ",idempotencyKey);
[req AddHeader: @"Ibanity-Idempotency-Key" value: idempotencyKey];

CkoHttpResponse *resp = [http PostUrlEncoded: @"https://api.ibanity.com/isabel-connect/oauth2/token" 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)

// {
//   "token_type": "Bearer",
//   "scope": "cloudconnect",
//   "refresh_token": "valid_refresh_token",
//   "expires_in": 1799,
//   "access_token": "access_token_1617371230"
// }

// 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 *token_type = [jResp StringOf: @"token_type"];
NSString *scope = [jResp StringOf: @"scope"];
NSString *refresh_token = [jResp StringOf: @"refresh_token"];
int expires_in = [[jResp IntOf: @"expires_in"] intValue];
NSString *access_token = [jResp StringOf: @"access_token"];

// Save to a file for future use in refreshing the access token.
// The refresh token is the same each time we refresh to get a new access token.
success = [jResp WriteFile: @"qa_data/tokens/isabel_refresh_token.json"];

// Also save to a file to be used as the current access token.
success = [jResp WriteFile: @"qa_data/tokens/isabel_access_token.json"];