Chaining the $http.get AngularJS

Question

As I am making few call to the endpoints within a function and it was causing issue with the parallel calls to the endpoints, so it was suggested in the other question to use the promise chaining. I updated my code so we can call the endpoints one after the other, so the code looks like below

 $scope.getRequest = function () {
        var url = $rootScope.BaseURL;
        var config = {
            headers: {
                'Authorization': `Basic ${$scope.key}`,
                'Prefer': 'odata.maxpagesize=2000'
            }
        };
        $http.get(url, config)
            .then(newViewRequest)
            .then(function(response){ 
                $scope.viewRequest.data = response.data;
            },
            function (response) { // failure async
                console.log("There was an error getting the request from CORE");});
   };

    var newViewRequest = function (response) {
        var url1 = $rootScope.BaseURL + `CMQ_REQUEST('${$scope.viewRequest.barcode}')`;
        if (response.data.REV_SAMPLE_CMQREQUEST.length = 0) {
            return $http.get(url1, config)
         }
        return $q.reject({ message: 'Validations didnt work' });
    };

It always sends the reject message back from the newViewRequest if response.data.REV_SAMPLE_CMQREQUEST.length = 0, if I comment it out I get the response.data is undefined.

Naga Sai A · Accepted Answer · 2019-07-24 14:36:04Z

2

Update your condition to validate instead of assigning

Issue: Update if condition as below to check response.data.REV_SAMPLE_CMQREQUEST.length whether it is 0 or not with === instead of =

if (response.data.REV_SAMPLE_CMQREQUEST.length === 0)

answered Jul 24, 2019 at 14:36

Naga Sai A

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7 Comments

trx Over a year ago

thank you but the issue is I dont get the response back with the $http.get call with in the If condition. I added the screenshot

Naga Sai A Over a year ago

@trx, try to console.log response1

trx Over a year ago

The logs looks good. How can I get the response from the newViewRequest in to the $scope.viewRequest.data because response.data is undefined

Naga Sai A Over a year ago

please share the console.log for response1

trx Over a year ago

Updated the screenshot

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