Use DataFields in Rest URL in ExtJS to access Context.io API - rest

Question

I have two Question Regarding Rest API in EXTJS.
How can I use fields to make rest URL dynamic?
How can I add authentication key to access Context.io in my Rest.Proxy?
This is my solution, but I am not sure if I have done it properly, or not. I am pretty new in ExtJS, so my question may be basic, but I appreciate your help.
Ext.define("EmailFolders", {
extend: "Ext.data.Model",
fields: ["id", "label"],
proxy: {
type: "rest",
url: "lite/users/:" + id + "/email_accounts/:" + label + "/folders"
},
reader: {
type: "json"
},
headers: {
CONSUMER_KEY: "KEY FROM CONTEX.IO",
CONSUMER_SECRET: "SECRET FROM CONTEXT.IO"
}
});

Answer 1

You could use store.getProxy() to make rest URL dynamic and to pass the authentication keys in headers. Proxy have methods
proxy.setUrl() to sets the value of url.
proxy.setHeaders() to sets the value of headers.
You can check here with working fiddle
CODE SNIPPET
Ext.application({
name: 'Fiddle',
launch: function () {
let url = 'https://jsonplaceholder.typicode.com/users';
// Set up a model to use in our Store
Ext.define('User', {
extend: 'Ext.data.Model',
proxy: {
type: 'ajax',
reader: {
type: 'json',
rootProperty: ''
}
}
});
Ext.define('MyStore', {
extend: 'Ext.data.Store',
model: 'User',
listeners: {
beforeload: function (store) {
var proxy = store.getProxy();
//if you want, you can also set here url inside of beforeload
//proxy.setUrl(url);
/*
* You can use {proxy.setHeaders} to set the values from CONTEX.IO
* After ajax request see your request parameter in network analysis below 2 headers are passed in request header
*/
proxy.setHeaders({
CONSUMER_KEY: "KEY FROM CONTEX.IO",
CONSUMER_SECRET: "SECRET FROM CONTEXT.IO"
});
}
}
});
let store = new MyStore();
//Set the dynamic url here
//This {url} will be dynamic whatever you want to pass
store.getProxy().setUrl(url);
store.load(function (data) {
console.log(data);
alert('Open console to see reposne..!')
});
/*
You can also pass url inside of load funtion
*/
new MyStore().load({
url: url + '/' + 1,
callback: function (data) {
console.log(data);
}
});
}
});