(JavaScript) PayPal -- Get an OAuth 2.0 Access Token

See more PayPal Examples

curl https://api.sandbox.paypal.com/v1/oauth2/token \
  -H "Accept: application/json" \
  -H "Accept-Language: en_US" \
  -u "Client-Id:Secret" \
  -d "grant_type=client_credentials"

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

var success = false;

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

var rest = new CkRest();

// Make the initial connection.
// A single REST object, once connected, can be used for many PayPal 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.
var bAutoReconnect = true;
success = rest.Connect("api.sandbox.paypal.com",443,true,bAutoReconnect);
if (success !== true) {
    console.log(rest.LastErrorText);
    return;
}

// Duplicate this request:

// 	curl https://api.sandbox.paypal.com/v1/oauth2/token \
// 	  -H "Accept: application/json" \
// 	  -H "Accept-Language: en_US" \
// 	  -u "Client-Id:Secret" \
// 	  -d "grant_type=client_credentials"

rest.AddHeader("Accept","application/json");
rest.AddHeader("Accept-Language","en_US");

// For additional help on where to find  your client ID and API secret, see PayPal Client_ID and API_Secret
rest.SetAuthBasic("PAYPAL_REST_API_CLIENT_ID","PAYPAL_REST_API_SECRET");

rest.AddQueryParam("grant_type","client_credentials");

var responseStr = rest.FullRequestFormUrlEncoded("POST","/v1/oauth2/token");
if (rest.LastMethodSuccess !== true) {
    console.log(rest.LastErrorText);
    return;
}

console.log(rest.LastRequestHeader);

// A sample response:

// 	{
// 	  "scope": "https://api.paypal.com/v1/payments/.* https://api.paypal.com/v1/vault/credit-card https://api.paypal.com/v1/vault/credit-card/.*",
// 	  "access_token": "EEwJ6tF9x5WCIZDYzyZGaz6Khbw7raYRIBV_WxVvgmsG",
// 	  "token_type": "Bearer",
// 	  "app_id": "APP-6XR95014BA15863X",
// 	  "expires_in": 28800
// 	}

var json = new CkJsonObject();
json.Load(responseStr);
json.EmitCompact = false;

// Check the response status code.  A 200 indicates success..
if (rest.ResponseStatusCode !== 200) {
    console.log(json.Emit());
    console.log("Failed.");
    return;
}

// Given that the access token expires in approx 8 hours,
// let's record the date/time this token was created.
// This will allow us to know beforehand if the token
// is expired (and we can then fetch a new token).
var dateTime = new CkDateTime();
var bLocalTime = false;
var dtNow = dateTime.GetAsUnixTime(bLocalTime);
json.AppendInt("tokenCreateTimeUtc",dtNow);

// Examine the access token and save to a file.
console.log("Access Token: " + json.StringOf("access_token"));
console.log("Full JSON Response:");
console.log(json.Emit());

var sbResponse = new CkStringBuilder();
sbResponse.Append(json.Emit());
var bEmitBom = false;
sbResponse.WriteFile("qa_data/tokens/paypal.json","utf-8",bEmitBom);