Node.js

GeoOp Exchange Refresh Token for New Access Token

See more GeoOp Examples

Demonstrates how to use the /oauth2/token endpoint to exchange it for a new access token once the current access token has expired.

Note: This example requires Chilkat v9.5.0.65 or greater.

Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    // This example also assumes that OAuth2 access and refresh tokens were previously fetched.
    // and saved in a JSON file.  

    // First get our previously obtained refresh token.
    // { .... "refresh_token":"e6dqdG....mzjpT04w==", .... }
    var jsonToken = new chilkat.JsonObject();
    success = jsonToken.LoadFile("qa_data/tokens/geoop.json");

    var rest = new chilkat.Rest();

    // Connect to GeoOp...
    var bAutoReconnect = true;
    success = rest.Connect("login.geoop.com",443,true,bAutoReconnect);
    if (success !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    // Set the X-Version header.
    rest.AddHeader("X-Version","1.0");

    // Provide the required form params to get the new access token
    console.log("refresh_token = " + jsonToken.StringOf("refresh_token"));
    rest.AddQueryParam("refresh_token",jsonToken.StringOf("refresh_token"));
    rest.AddQueryParam("grant_type","refresh_token");
    rest.AddQueryParam("client_id","GEOOP-CLIENT-ID");
    rest.AddQueryParam("client_secret","GEOOP-CLIENT-SECRET");

    var responseBody = rest.FullRequestFormUrlEncoded("POST","/oauth2/token");
    if (rest.LastMethodSuccess !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    // If the response status code did not indicate success, then see what happened..
    if (rest.ResponseStatusCode !== 200) {
        console.log("Request Header: ");
        console.log(rest.LastRequestHeader);
        console.log("----");
        console.log("Response StatusCode = " + rest.ResponseStatusCode);
        console.log("Response StatusLine: " + rest.ResponseStatusText);
        console.log("Response Header:");
        console.log(rest.ResponseHeader);
        console.log(responseBody);
        return;
    }

    var json = new chilkat.JsonObject();
    json.EmitCompact = false;
    json.Load(responseBody);

    // Show the full JSON response.  It should contain the new access token...
    console.log(json.Emit());

}

chilkatExample();