$http({
        method: 'GET',
        headers: {
          username: params.username,
          password: params.password,
          'Accept': 'application/json'
        },
        timeout: 15000,
        url: 'urlnya'
      }).then(function successCallback(response) {

        console.log(response.data); // Dapet Key

},function errorCallback(response) {
        console.log(response)

      });