(Unicode C) Shopware 6 - Get OAuth2 Access Token using Client Credentials (Integration)

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Demonstrates how to get an OAuth2 access token with an integration.

For more information, see https://docs.shopware.com/en/shopware-platform-dev-en/admin-api-guide/authentication

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#include <C_CkHttpW.h>
#include <C_CkJsonObjectW.h>
#include <C_CkHttpResponseW.h>
#include <C_CkStringBuilderW.h>

void ChilkatSample(void)
    {
    HCkHttpW http;
    BOOL success;
    HCkJsonObjectW json;
    HCkHttpResponseW resp;
    HCkStringBuilderW sbResponseBody;
    HCkJsonObjectW jResp;
    int respStatusCode;
    const wchar_t *token_type;
    int expires_in;
    const wchar_t *access_token;
    const wchar_t *refresh_token;

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

    http = CkHttpW_Create();

    // Sends the following POST

    // 	POST /api/oauth/token
    // 	{
    // 	    "grant_type": "client_credentials",
    // 	    "client_id": "<client-id>",
    // 	    "client_secret": "<client-secret>"
    // 	}

    // Use this online tool to generate code from sample JSON:
    // Generate Code to Create JSON

    // The following JSON is sent in the request body.

    json = CkJsonObjectW_Create();
    CkJsonObjectW_UpdateString(json,L"grant_type",L"client_credentials");
    CkJsonObjectW_UpdateString(json,L"client_id",L"client-id");
    CkJsonObjectW_UpdateString(json,L"client_secret",L"client-secret");

    resp = CkHttpW_PostJson3(http,L"https://my-shopware-6-shop.de/api/oauth/token",L"application/json",json);
    if (CkHttpW_getLastMethodSuccess(http) == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(json);
        return;
    }

    sbResponseBody = CkStringBuilderW_Create();
    CkHttpResponseW_GetBodySb(resp,sbResponseBody);
    jResp = CkJsonObjectW_Create();
    CkJsonObjectW_LoadSb(jResp,sbResponseBody);
    CkJsonObjectW_putEmitCompact(jResp,FALSE);

    wprintf(L"Response Body:\n");
    wprintf(L"%s\n",CkJsonObjectW_emit(jResp));

    respStatusCode = CkHttpResponseW_getStatusCode(resp);
    wprintf(L"Response Status Code = %d\n",respStatusCode);
    if (respStatusCode >= 400) {
        wprintf(L"Response Header:\n");
        wprintf(L"%s\n",CkHttpResponseW_header(resp));
        wprintf(L"Failed.\n");
        CkHttpResponseW_Dispose(resp);
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(json);
        CkStringBuilderW_Dispose(sbResponseBody);
        CkJsonObjectW_Dispose(jResp);
        return;
    }

    CkHttpResponseW_Dispose(resp);

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

    // {
    //   "token_type": "Bearer",
    //   "expires_in": 600,
    //   "access_token": "xxxxxxxxxxxxxx",
    //   "refresh_token": "token"
    // }

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

    token_type = CkJsonObjectW_stringOf(jResp,L"token_type");
    expires_in = CkJsonObjectW_IntOf(jResp,L"expires_in");
    access_token = CkJsonObjectW_stringOf(jResp,L"access_token");
    refresh_token = CkJsonObjectW_stringOf(jResp,L"refresh_token");

    // Save our JSON to a file (to be used in other examples..)
    success = CkJsonObjectW_WriteFile(jResp,L"qa_data/tokens/shopware6.json");


    CkHttpW_Dispose(http);
    CkJsonObjectW_Dispose(json);
    CkStringBuilderW_Dispose(sbResponseBody);
    CkJsonObjectW_Dispose(jResp);

    }