How to get start with REST API

Question

Hello support. 
 I am currently working with an organisation which need to get data when an SuitCrm record is being created. 
 For this I try to use the REST API so we can get the records information and make a custom login on our end. 
 For this I see an example for exporting records via API on this link 
 As per that example we need the following information to proceed further: 
 $instance_url = "http://{site_url}/rest/v11";
$username = "admin";
$password = "password"; 
 
 I am trying to figure out from where I can get site_url? and which username and password is required to continue further. 
 Please provide a step by step tutorial or guide me to get the information for API use. 
 Thank you.

m iqbal jalil · Accepted Answer

SuiteCRM was forked from Sugar a long time ago, before Sugar version 7, and there have been huge changes in Sugar since then. The link you have in your post is for the latest SugarCRM, and the rest APIs as documented in that Cookbook were implemented after the SuiteCRM fork. It may be better for you to check out the SuiteCRM site instead: https://suitecrm.com/ 
 Good luck, FrancescaS