lib/mercadopago-support.js
function getAccessToken() {
    var callback = preConditions.getCallback(arguments[arguments.length - 1]);

    showWarning();

    return requestManager.generateAccessToken(callback);
  }
function getAccessToken() {
    var callback = preConditions.getCallback(arguments[arguments.length - 1]);

    showWarning();

    return requestManager.generateAccessToken(callback);
  }
function getAccessToken ( ) { var callback = preConditions . getCallback ( arguments [ arguments . length - 1 ] ) ; showWarning ( ) ; return requestManager . generateAccessToken ( callback ) ; }
Get access_token using the client_id and client_secret configure
@param callback
@returns {string}
Get access_token using the client_id and client_secret configure