topic Re: esriRequest "then" not recognized in ArcGIS JavaScript Maps SDK Questions

esriRequest "then" not recognized

JasonLin — Fri, 07 Feb 2014 16:00:36 GMT

Hi,

I'm trying to follow the esriRequest sample but am stuck when registering its callback functions.

identifyRequest.then(requestSucceeded, requestFailed);

For some reason, I keep getting a type error saying "Object [object object] has no method 'then' ". Am I missing something?

Thanks,

Re: esriRequest "then" not recognized

derekswingley1 — Fri, 07 Feb 2014 16:21:24 GMT

You're missing parentheses and parameters. Would be good to see more of your code but try something like:

identifyRequest(params).then(requestSucceeded, requestFailed);

Re: esriRequest "then" not recognized

JasonLin — Fri, 10 Dec 2021 21:24:43 GMT

Thanks, Derek. Actually, my code snippet is pretty much like the sample code, which initializes esriRequest's parameters in declaration.

        function getStuff() {
          var restURL = "http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Demographics/ESRI_Census_USA/MapServer/layers";
          var myRequest = esriRequest({
            url: restURL,
            content: {f: "json"},
            handleAs: "json",
            callbackParamName: 'callback'
          });

          myRequest.then(requestSucceeded, requestFailed); // Problem!

        function requestSucceeded(response, io){
          alert("Success");
        }

        function requestFailed(error, io){      
          alert("Error");
        }

Still puzzled about why it's complaining about 'then'...

Re: esriRequest "then" not recognized

derekswingley1 — Sat, 08 Feb 2014 04:03:58 GMT

Thanks. Can you double-check that you have esriRequest aliased correctly in you require() statement?

Nothing from you code jumps out at me as wrong. It looks similar to one of our samples that does something similar: https://developers.arcgis.com/javascript/jssamples/data_requestLayerInfo.html

topic Re: esriRequest "then" not recognized in ArcGIS JavaScript Maps SDK Questions

esriRequest &quot;then&quot; not recognized

Re: esriRequest "then" not recognized

Re: esriRequest "then" not recognized

Re: esriRequest "then" not recognized

esriRequest "then" not recognized