Unicode C
Unicode C
QuickBooks - Automatically Refresh Access Token with No User Interaction
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Demonstrates how to automaticaly refresh an expired access token and retry the request after a 401 authorization error.Chilkat Unicode C Downloads
#include <C_CkJsonObjectW.h>
#include <C_CkRestW.h>
#include <C_CkStringBuilderW.h>
#include <C_CkOAuth2W.h>
#include <C_CkDateTimeW.h>
#include <C_CkDtObjW.h>
void ChilkatSample(void)
{
BOOL success;
HCkJsonObjectW jsonToken;
HCkRestW rest;
BOOL bAutoReconnect;
HCkStringBuilderW sbAuth;
const wchar_t *responseBody;
HCkOAuth2W oauth2;
HCkStringBuilderW sbJson;
HCkJsonObjectW json;
HCkDateTimeW dtime;
BOOL bLocalTime;
HCkDtObjW dt;
success = FALSE;
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
// Get our previously obtained OAuth2 access token, which should contain JSON like this:
// {
// "expires_in": 3600,
// "x_refresh_token_expires_in": 8726400,
// "refresh_token": "L011546037639r ... 3vR2DrbOmg0Sdagw",
// "access_token": "eyJlbmMiOiJBMTI4Q0 ... oETJEMbeggg",
// "token_type": "bearer"
// }
jsonToken = CkJsonObjectW_Create();
success = CkJsonObjectW_LoadFile(jsonToken,L"qa_data/tokens/qb-access-token.json");
rest = CkRestW_Create();
// Connect using TLS.
// A single REST object, once connected, can be used for many Quickbooks REST API calls.
// The auto-reconnect indicates that if the already-established HTTPS connection is closed,
// then it will be automatically re-established as needed.
bAutoReconnect = TRUE;
success = CkRestW_Connect(rest,L"sandbox-quickbooks.api.intuit.com",443,TRUE,bAutoReconnect);
if (success == FALSE) {
wprintf(L"%s\n",CkRestW_lastErrorText(rest));
CkJsonObjectW_Dispose(jsonToken);
CkRestW_Dispose(rest);
return;
}
sbAuth = CkStringBuilderW_Create();
CkStringBuilderW_Append(sbAuth,L"Bearer ");
CkStringBuilderW_Append(sbAuth,CkJsonObjectW_stringOf(jsonToken,L"access_token"));
CkRestW_putAuthorization(rest,CkStringBuilderW_getAsString(sbAuth));
CkRestW_AddHeader(rest,L"Accept",L"application/json");
CkRestW_putAllowHeaderFolding(rest,FALSE);
// The company ID is 123146096291789
// The employee ID is 58
responseBody = CkRestW_fullRequestNoBody(rest,L"GET",L"/v3/company/123146096291789/employee/58?minorversion=45");
if (CkRestW_getLastMethodSuccess(rest) == FALSE) {
wprintf(L"%s\n",CkRestW_lastErrorText(rest));
CkJsonObjectW_Dispose(jsonToken);
CkRestW_Dispose(rest);
CkStringBuilderW_Dispose(sbAuth);
return;
}
// If we get a 401 authorization error, then it's likely because the access token expired.
// We can automatically refresh it without interaction from the user.
if (CkRestW_getResponseStatusCode(rest) == 401) {
oauth2 = CkOAuth2W_Create();
CkOAuth2W_putTokenEndpoint(oauth2,L"https://oauth.platform.intuit.com/oauth2/v1/tokens/bearer");
// Replace these with actual values.
CkOAuth2W_putClientId(oauth2,L"QUICKBOOKS-CLIENT-ID");
CkOAuth2W_putClientSecret(oauth2,L"QUICKBOOKS-CLIENT-SECRET");
// Get the "refresh_token"
CkOAuth2W_putRefreshToken(oauth2,CkJsonObjectW_stringOf(jsonToken,L"refresh_token"));
// Send the HTTP POST to refresh the access token..
success = CkOAuth2W_RefreshAccessToken(oauth2);
if (success == FALSE) {
wprintf(L"%s\n",CkOAuth2W_lastErrorText(oauth2));
CkJsonObjectW_Dispose(jsonToken);
CkRestW_Dispose(rest);
CkStringBuilderW_Dispose(sbAuth);
CkOAuth2W_Dispose(oauth2);
return;
}
wprintf(L"New access token: %s\n",CkOAuth2W_accessToken(oauth2));
// Update the JSON with the new tokens.
CkJsonObjectW_UpdateString(jsonToken,L"access_token",CkOAuth2W_accessToken(oauth2));
// Save the new JSON access token response to a file.
// The access + refresh tokens contained in this JSON will be needed for the next refresh.
sbJson = CkStringBuilderW_Create();
CkJsonObjectW_putEmitCompact(jsonToken,FALSE);
CkJsonObjectW_EmitSb(jsonToken,sbJson);
CkStringBuilderW_WriteFile(sbJson,L"qa_data/tokens/qb-access-token.json",L"utf-8",FALSE);
wprintf(L"OAuth2 token refreshed!\n");
wprintf(L"New Access Token = %s\n",CkOAuth2W_accessToken(oauth2));
CkStringBuilderW_Clear(sbAuth);
CkStringBuilderW_Append(sbAuth,L"Bearer ");
CkStringBuilderW_Append(sbAuth,CkOAuth2W_accessToken(oauth2));
CkRestW_putAuthorization(rest,CkStringBuilderW_getAsString(sbAuth));
// Now retry the request with the refreshed access token...
responseBody = CkRestW_fullRequestNoBody(rest,L"GET",L"/v3/company/123146096291789/employee/58?minorversion=45");
if (CkRestW_getLastMethodSuccess(rest) == FALSE) {
wprintf(L"%s\n",CkRestW_lastErrorText(rest));
CkJsonObjectW_Dispose(jsonToken);
CkRestW_Dispose(rest);
CkStringBuilderW_Dispose(sbAuth);
CkOAuth2W_Dispose(oauth2);
CkStringBuilderW_Dispose(sbJson);
return;
}
}
// We should expect a 200 response if successful.
if (CkRestW_getResponseStatusCode(rest) != 200) {
wprintf(L"Request Header: \n");
wprintf(L"%s\n",CkRestW_lastRequestHeader(rest));
wprintf(L"----\n");
wprintf(L"Response StatusCode = %d\n",CkRestW_getResponseStatusCode(rest));
wprintf(L"Response StatusLine: %s\n",CkRestW_responseStatusText(rest));
wprintf(L"Response Header:\n");
wprintf(L"%s\n",CkRestW_responseHeader(rest));
wprintf(L"%s\n",responseBody);
CkJsonObjectW_Dispose(jsonToken);
CkRestW_Dispose(rest);
CkStringBuilderW_Dispose(sbAuth);
CkOAuth2W_Dispose(oauth2);
CkStringBuilderW_Dispose(sbJson);
return;
}
// Load the JSON response into a JSON object for parsing.
// A sample JSON response is shown below.
json = CkJsonObjectW_Create();
CkJsonObjectW_Load(json,responseBody);
// These will be used for parsing date/time strings..
dtime = CkDateTimeW_Create();
bLocalTime = TRUE;
// Show the JSON.
CkJsonObjectW_putEmitCompact(json,FALSE);
wprintf(L"%s\n",CkJsonObjectW_emit(json));
// Get some information from the JSON..
wprintf(L"Name: %s\n",CkJsonObjectW_stringOf(json,L"Employee.DisplayName"));
wprintf(L"Id: %s\n",CkJsonObjectW_stringOf(json,L"Employee.Id"));
wprintf(L"City: %s\n",CkJsonObjectW_stringOf(json,L"Employee.PrimaryAddr.City"));
wprintf(L"PostalCode: %s\n",CkJsonObjectW_stringOf(json,L"Employee.PrimaryAddr.PostalCode"));
// Load the CreateTime into a CkDateTime...
CkDateTimeW_SetFromTimestamp(dtime,CkJsonObjectW_stringOf(json,L"Employee.MetaData.CreateTime"));
dt = CkDtObjW_Create();
CkDateTimeW_ToDtObj(dtime,bLocalTime,dt);
wprintf(L"%d/%d/%d %d:%d\n",CkDtObjW_getMonth(dt),CkDtObjW_getDay(dt),CkDtObjW_getYear(dt),CkDtObjW_getHour(dt),CkDtObjW_getMinute(dt));
wprintf(L"Success.\n");
// Use this online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON
// ------------------------------------------------------
// The JSON response looks like this:
// {
// "Employee": {
// "SSN": "XXX-XX-XXXX",
// "PrimaryAddr": {
// "Id": "116",
// "Line1": "45 N. Elm Street",
// "City": "Middlefield",
// "CountrySubDivisionCode": "CA",
// "PostalCode": "93242"
// },
// "BillableTime": false,
// "domain": "QBO",
// "sparse": false,
// "Id": "98",
// "SyncToken": "0",
// "MetaData": {
// "CreateTime": "2015-07-24T09:34:35-07:00",
// "LastUpdatedTime": "2015-07-24T09:34:35-07:00"
// },
// "GivenName": "Bill",
// "FamilyName": "Miller",
// "DisplayName": "Bill Miller",
// "PrintOnCheckName": "Bill Miller",
// "Active": true,
// "PrimaryPhone": {
// "FreeFormNumber": "234-525-1234"
// }
// },
// "time": "2015-07-24T09:35:54.805-07:00"
//
CkJsonObjectW_Dispose(jsonToken);
CkRestW_Dispose(rest);
CkStringBuilderW_Dispose(sbAuth);
CkOAuth2W_Dispose(oauth2);
CkStringBuilderW_Dispose(sbJson);
CkJsonObjectW_Dispose(json);
CkDateTimeW_Dispose(dtime);
CkDtObjW_Dispose(dt);
}