(C++) Isabel Connect Create First Access Token and Refresh Token

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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

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#include <CkHttp.h>
#include <CkCert.h>
#include <CkHttpRequest.h>
#include <CkCrypt2.h>
#include <CkHttpResponse.h>
#include <CkStringBuilder.h>
#include <CkJsonObject.h>

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

    CkHttp http;

    // 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.)
    CkCert cert;
    bool success = cert.LoadPfxFile("qa_data/pfx/my_ibanity_certificate.pfx","my_pfx_password");
    if (success == false) {
        std::cout << cert.lastErrorText() << "\r\n";
        return;
    }

    success = http.SetSslClientCert(cert);
    if (success == false) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    CkHttpRequest req;
    req.put_HttpVerb("POST");
    req.put_Path("/isabel-connect/oauth2/token");
    req.put_ContentType("application/x-www-form-urlencoded");
    req.AddParam("grant_type","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","valid_authorization_code");
    req.AddParam("client_id","valid_client_id");
    req.AddParam("client_secret","valid_client_secret");
    req.AddParam("redirect_uri","https://fake-tpp.com");

    req.AddHeader("Accept","application/vnd.api+json");

    CkCrypt2 crypt;
    const char *idempotencyKey = crypt.generateUuid();
    std::cout << "Ibanity-Idempotency-Key: " << idempotencyKey << "\r\n";
    req.AddHeader("Ibanity-Idempotency-Key",idempotencyKey);

    CkHttpResponse *resp = http.PostUrlEncoded("https://api.ibanity.com/isabel-connect/oauth2/token",req);
    if (http.get_LastMethodSuccess() == false) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    CkStringBuilder sbResponseBody;
    resp->GetBodySb(sbResponseBody);
    CkJsonObject jResp;
    jResp.LoadSb(sbResponseBody);
    jResp.put_EmitCompact(false);

    std::cout << "Response Body:" << "\r\n";
    std::cout << jResp.emit() << "\r\n";

    int respStatusCode = resp->get_StatusCode();
    std::cout << "Response Status Code = " << respStatusCode << "\r\n";
    if (respStatusCode >= 400) {
        std::cout << "Response Header:" << "\r\n";
        std::cout << resp->header() << "\r\n";
        std::cout << "Failed." << "\r\n";
        delete resp;
        return;
    }

    delete resp;

    // 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

    const char *token_type = jResp.stringOf("token_type");
    const char *scope = jResp.stringOf("scope");
    const char *refresh_token = jResp.stringOf("refresh_token");
    int expires_in = jResp.IntOf("expires_in");
    const char *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");
    }