What could be causing my AngularJS JSONP request to fail when trying to query Solr?

Question

What could be causing my AngularJS JSONP request to fail when trying to query Solr?

After attempting to query my Solr server with the provided code snippet:

var url ="http://localhost:8080/solr/sdc/selectwt=json&callback=JSON_CALLBACK&q=opioid"
$http.jsonp(url ).success(function(res){
    console.log(res)
})

An error is returned in the console:

select?wt=json&callback=angular.callbacks._0&q=opioid:formatted:1
Uncaught SyntaxError: Unexpected token :

The response output displays as follows:

{"responseHeader":{"status":0,"QTime":0,"params":{"q":"opioid","callback":"angular.callbacks._0","wt":"json"}},"response":{"numFound":28,"start":0,"docs": ........

This issue seems to be related to the format of the Solr response, particularly the first occurrence of :

I'm unsure if I have a strong grasp on what jsonp entails to troubleshoot effectively. Furthermore, using JSONP may come across as unorthodox. Is it considered safe for use within a corporate setting?

javascript angularjs solr jsonp

Answer 1

Answer №1

After implementing the code myself, I was able to successfully get it to work. It is puzzling why the provided version did not function as expected.

.factory( 'searchService', function ( $q ) {
    var search_service = {};

    search_service.search = function ( query ) {
        return $q(function(resolve, reject){
            var jsonpReq = document.createElement("script");

            /*Json callback, called from injected script tag*/
            loadResults = function (jsonResp) {
                resolve(jsonResp)
            };

            jsonpReq.src = 'http://localhost:8080/solr/sdc/select?wt=json&json.wrf=loadResults&q=' + query;
            jsonpReq.type = "text/javascript";
            document.body.appendChild(jsonpReq);
        })

    };

    return search_service;
} )

Remember that $q promises require you to use .then() instead of .success()

Answer 2

After implementing the code myself, I was able to successfully get it to work. It is puzzling why the provided version did not function as expected.

.factory( 'searchService', function ( $q ) {
    var search_service = {};

    search_service.search = function ( query ) {
        return $q(function(resolve, reject){
            var jsonpReq = document.createElement("script");

            /*Json callback, called from injected script tag*/
            loadResults = function (jsonResp) {
                resolve(jsonResp)
            };

            jsonpReq.src = 'http://localhost:8080/solr/sdc/select?wt=json&json.wrf=loadResults&q=' + query;
            jsonpReq.type = "text/javascript";
            document.body.appendChild(jsonpReq);
        })

    };

    return search_service;
} )

Remember that $q promises require you to use .then() instead of .success()

Answer 3

Answer №2

For successful integration, remember to include JSON_CALLBACK in your URL. This simple step made a difference for me.

Your modified URL will look something like this:

http://localhost:8080/solr/sdc/selectwt=json&json.wrf=JSON_CALLBACK&q=opioid

Give it a try and see the results.

I hope this tip proves to be helpful for you as well.

Answer 4

For successful integration, remember to include JSON_CALLBACK in your URL. This simple step made a difference for me.

Your modified URL will look something like this:

http://localhost:8080/solr/sdc/selectwt=json&json.wrf=JSON_CALLBACK&q=opioid

Give it a try and see the results.

I hope this tip proves to be helpful for you as well.

What could be causing my AngularJS JSONP request to fail when trying to query Solr?

Answer №1

Answer №2

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