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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.

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FC_Basson

Have a look at esri.request:

3.19: esri/request | API Reference | ArcGIS API for JavaScript 3.19

4.2: request | API Reference | ArcGIS API for JavaScript 4.2

roshnibasu

We are using 4.2 version. I am clueless which class do I need to use to call any of the REST APIS including GeoEnrich.

I tried using esri\request. But it did not work . I have to use jsonp.

FC_Basson

Is it possible to provide some code to show what you are trying to do and where the problem is?

roshnibasu

$.ajax({
url: "http://geoenrich.arcgis.com/arcgis/rest/services/World/geoenrichmentserver/StandardGeographyQuery/execute?sourceCountry=US&geographylayers=[%22US.Counties%22]&geographyQuery=orange&f=pjson&token="+token+"&returnGeometry=true",
dataType: 'jsonp',
type: 'GET',
crossDomain: true,
contentType: "application/json; charset=utf-8;",
async: false,
// jsonpCallback:"callback",
success: function(result){
if(result.error){
return false;
}else{
return true;
}
},
error: function(result){
console.log(result);
alert('error');
}

});

Tried thsi with jquery it did not work for me.

roshnibasu

Also tried using ARC GIS 4.2 and Query API from there.

function(token){
require(["esri/request"], function(esriRequest) {
var url = "http://geoenrich.arcgis.com/arcgis/rest/services/World/geoenrichmentserver/StandardGeographyQuery/execute?sourceCountry=US&geographylayers=[%22US.Counties%22]&geographyQuery=orange&f=pjson&token="+token+"&returnGeometry=true";
esriRequest(url, {
responseType: "json",
callbackParamName: "callback",
}).then(function(response){
// The requested data
alert(response);
});

});
}

This also did not work for me.

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