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(Unicode C) MyInvois Malaysia Login as Intermediary System

See more Malaysia MyInvois Examples

Demonstrates how to get an OAuth2 access token with an intermediary that is representing a taxpayer (acting on behalf of a specific taxpayer). The OAuth2 access token can then be used to access MyInvois protected APIs.

For more information, see https://sdk.myinvois.hasil.gov.my/api/08-login-as-intermediary-system/

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

void ChilkatSample(void)
    {
    HCkHttpW http;
    HCkHttpRequestW req;
    HCkHttpResponseW resp;
    HCkJsonObjectW json;
    const wchar_t *access_token;
    int expires_in;
    const wchar_t *token_type;
    const wchar_t *scope;

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

    // Sends the following HTTP POST to get a MyInvois OAUth2 access token using client_credentials

    // POST /connect/token HTTP/1.1
    // Host: preprod-api.myinvois.hasil.gov.my
    // Accept: */*
    // Content-Length: <<variable>>
    // Content-Type: application/x-www-form-urlencoded
    // 
    // client_id={YOUR_CLIENT_ID}&client_secret={YOUR_CLIENT_SECRET}&grant_type=client_credentials&scope=InvoicingAPI

    // --------------------------------------------------------------------------------------------------------
    // Note: There is a large amount of information about the MyInvois API on the Internet.
    // The information is found at https://sdk.myinvois.hasil.gov.my/
    // and also at many other companies offering solutions.
    // 
    // Unfortunately, it's all completely useless to the programmer wishing to implement the API.
    // The reason it's useless is because no specifics are given.
    // A developer needs to know the specific details of the HTTP request and response.
    // What is the HTTP request Content-Type?
    // What is the endpoint?
    // What is the format of request body and response?  JSON or XML?
    // What specific header fields are needed, if any?
    // 
    // Providing samples of raw HTTP requests and responses tells the developer everything he/she needs to know.
    // All unknowns become known.  
    // Everything becomes easy to implement.
    // Just show some sample raw HTTP requests and responses, and we can all spend far less time in the office
    // and more time relaxing on a beach.

    http = CkHttpW_Create();

    req = CkHttpRequestW_Create();
    CkHttpRequestW_AddParam(req,L"grant_type",L"client_credentials");
    CkHttpRequestW_AddParam(req,L"client_id",L"YOUR_CLIENT_ID");
    CkHttpRequestW_AddParam(req,L"client_secret",L"YOUR_CLIENT_SECRET");
    CkHttpRequestW_AddParam(req,L"scope",L"InvoicingAPI");

    resp = CkHttpW_PostUrlEncoded(http,L"https://preprod-api.myinvois.hasil.gov.my/connect/token",req);
    if (CkHttpW_getLastMethodSuccess(http) == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkHttpRequestW_Dispose(req);
        return;
    }

    // Note: The returned access token is valid for a short amount of time.  Perhaps 1 hour.
    // The access token is used in the "Authorization: Bearer <access_token>" header in subsequent requests until it expires.
    // Your application would then need to get a new access token, and so on..

    wprintf(L"Response Status Code: %d\n",CkHttpResponseW_getStatusCode(resp));
    wprintf(L"Response Body:\n");
    wprintf(L"%s\n",CkHttpResponseW_bodyStr(resp));

    // Here's a sample response:

    // {
    //   "access_token": "eyJhbGciOiJSUzI1...",
    //   "expires_in": 3600,
    //   "token_type": "Bearer",
    //   "scope": "InvoicingAPI"
    // }

    json = CkJsonObjectW_Create();
    CkJsonObjectW_Load(json,CkHttpResponseW_bodyStr(resp));
    access_token = CkJsonObjectW_stringOf(json,L"access_token");
    expires_in = CkJsonObjectW_IntOf(json,L"expires_in");
    token_type = CkJsonObjectW_stringOf(json,L"token_type");
    scope = CkJsonObjectW_stringOf(json,L"scope");

    CkHttpResponseW_Dispose(resp);

    // To use an access token in a MyInvois API call, see Using a MyInvois Access Token in an API Request


    CkHttpW_Dispose(http);
    CkHttpRequestW_Dispose(req);
    CkJsonObjectW_Dispose(json);

    }

 

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