Node.js

X.com OAuth 2.0 Refresh Access Token

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Demonstrates how to get an X.com OAuth2 access token from a desktop application or script. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

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

    //  The access token JSON looks something like this:

    //  {
    //    "token_type": "bearer",
    //    "expires_in": 7200,
    //    "access_token": "VmNDLVZiYUZwejY5Mkx3RblFTmo3ek1leTRGclMuZFVOUTVUTWpNbVZKb1N5OjE3NDAxNjk4MDVxNTE6MToxOaF0OjE",
    //    "scope": "block.read follows.read offline.access tweet.write block.write like.write like.read users.read tweet.read follows.write",
    //    "refresh_token": "eThOWVVFSTRqdVp3QTFndGsxM2ZGZmFyNWVrU0phM1JKbGdrbGNWRGJzb1loOjE3NDAwMjk4MDUxNTI6MTowOnJ0OjE"
    //  }

    var oauth2 = new chilkat.OAuth2();

    oauth2.TokenEndpoint = "https://api.x.com/2/oauth2/token";

    //  Replace this with your actual X.com OAuth2 Client ID and Client Secret
    oauth2.ClientId = "OAUTH2_CLIENT_ID";
    oauth2.ClientSecret = "OAUTH2_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;
    }

    //  Load the access token response into the json object 
    jsonToken.Load(oauth2.AccessTokenResponse);

    //  If an "expires_on" member does not exist, then add the JSON member by
    //  getting the current system date/time and adding the "expires_in" seconds.
    //  This way we'll know when the token expires.
    if (jsonToken.HasMember("expires_on") == false) {
        var dtExpire = new chilkat.CkDateTime();
        dtExpire.SetFromCurrentSystemTime();
        dtExpire.AddSeconds(jsonToken.IntOf("expires_in"));
        jsonToken.AppendString("expires_on",dtExpire.GetAsUnixTimeStr(false));
    }

    //  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.
    var sbJson = new chilkat.StringBuilder();
    jsonToken.EmitCompact = false;
    jsonToken.EmitSb(sbJson);
    sbJson.WriteFile("qa_data/tokens/x.json","utf-8",false);

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

}

chilkatExample();