How to make ESRI Rest call from javascript

[roshnibasu]

How do I call the REST API https://www.arcgis.com/sharing/generateToken?username=<>&password=<>&referer=https://geoenrich.arcgis.com&f=json from a javascript method? I tried using jquery ajax request and found it working sometime and sometime the request is always pending.

And for the the following url, I do not find any specific query that I need to use? In Arc GIS 3.19 version I saw  esri.tasks.locationproviders.StandardGeographyQueryLocationProvider but in 4 it is not there. If I make normal ajax call using jquery it does not work at all.

Please help me to resolve the problem.

[FC_Basson]

In the "then" part of the esri.request

console.log(resp); should be console.log(response.data);

or

your resp = response.data must be defined before the console.log(resp); output.

The return resp; might also return nothing, because the request has not completed yet.

[roshnibasu]

Hi Basson,

That part of code is typo. What exactly iwant is the following two lines need to be executed:

var myResp = myTestFunction('myuname','mypass');
console.log(myResp);

[FC_Basson]

Do it like in Robert's example where the result is returned in the showResults function then instead of 

var myResp = myTestFunction('myuname','mypass');
console.log(myResp);

just do 

myTestFunction('myuname','mypass');

and change the request "then" function to 

.then(function(response){
   showResults(response);

}

[roshnibasu]

i need to store the response and use it in some other method. Thats the reason I want to do it that way.

[FC_Basson]

No problem - make resp a global variable which you assign the value to in the showResults function.

[roshnibasu]

My requirement is to fetch the data. and use it somewhere else.

[roshnibasu]

I should have the method to call using ESRI API in a separate class and then call that from other class.

[FC_Basson]

Roshni, I think your original question has been answered and solved.  You'll have to figure out a way to pass the variable data between functions.

[roshnibasu]

Ok. Thanks so much for all the help.

If any of you come across to the kind of issue I'm facing please provide suggestion.

[RochelleWolfe]

This is a very helpful example for me too! It does pull in that data successfully, however I am also showing a CORS error in the console. Should that not be appearing with examples? I also have it after this tutorial Get an access token | ArcGIS for Developers and this tutorial Query a feature layer | ArcGIS for Developers .