this.callAPI = function () {

        var dataObj="grant_type=client_credentials";
        console.log("dataObj in pricingservice =" + angular.toJson(dataObj));
        var secret=clientKey+":"+clientPass;
        var base64Encoded= btoa(secret);

        var authorizationVal="Basic "+base64Encoded;
        console.log("authorizationVal in pricingservice = "+authorizationVal);

        return $http({
            url: tokenAPI,
            method: 'POST',
            data: dataObj,
            withCredentials:true,
            headers: { "Content-Type": "application/x-www-form-urlencoded; charset=UTF-8" ,"Authorization":authorizationVal}
        })


           // ONCE THE RESPONSE  IS RECEIVED FROM ABOVE HTTP CALL , I WANT TO initiate  NEXT HTTP CALL

                $http({
                url: anotherUrl,
                method: 'GET',
                withCredentials:true,
                headers: { "Content-Type": "application/json;charset=utf-8" ,"Authorization":authorizationVal }
               })



    };