JavaScript

Google People API Refresh Access Token

See more Google People Examples

Demonstrates how to refresh a Google Access Token for the Google People API. JavaScript

var success = false;

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

// It is assumed we previously obtained an OAuth2 access token.
// This example loads the JSON access token file 
// saved by this example: Get Google People API OAuth2 Access Token

var jsonToken = new CkJsonObject();
success = jsonToken.LoadFile("qa_data/tokens/googlePeople.json");
if (success !== true) {
    console.log("Failed to load googlePeople.json");
    return;
}

// The access token JSON looks like this:

// {
//   "access_token": "ya29.a0AfH6S ... LAZYFUkf0",
//   "expires_in": 3599,
//   "refresh_token": "1//0fL_Ov ... ee0",
//   "scope": "https://www.googleapis.com/auth/contacts",
//   "token_type": "Bearer"
// }

var oauth2 = new CkOAuth2();

oauth2.TokenEndpoint = "https://www.googleapis.com/oauth2/v4/token";

// Replace these with actual values.
oauth2.ClientId = "GOOGLE-CLIENT-ID";
oauth2.ClientSecret = "GOOGLE-CLIENT-SECRET";

// Get the "refresh_token"
oauth2.RefreshToken = jsonToken.StringOf("refresh_token");

// Send the HTTP POST to refresh the access token..
success = oauth2.RefreshAccessToken();
if (success !== true) {
    console.log(oauth2.LastErrorText);
    return;
}

// The response contains a new access token, but we must keep
// our existing refresh token for when we need to refresh again in the future.
jsonToken.UpdateString("access_token",oauth2.AccessToken);

// Save the new JSON access token response to a file.
var sbJson = new CkStringBuilder();
jsonToken.EmitCompact = false;
jsonToken.EmitSb(sbJson);
sbJson.WriteFile("qa_data/tokens/googlePeople.json","utf-8",false);

console.log("OAuth2 authorization granted!");
console.log("New Access Token = " + oauth2.AccessToken);