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sawaji varunsawaji varun 

sample program using Apex and REST

mayurmayur
FInd below sample code:-
  
@RestResource(urlMapping='/Account/*')
global with sharing class MyRestResource {

    @HttpDelete
    global static void doDelete() {
        RestRequest req = RestContext.request;
        RestResponse res = RestContext.response;
        String accountId = req.requestURI.substring(req.requestURI.lastIndexOf('/')+1);
        Account account = [SELECT Id FROM Account WHERE Id = :accountId];
        delete account;
    }
  
    @HttpGet
    global static Account doGet() {
        RestRequest req = RestContext.request;
        RestResponse res = RestContext.response;
        String accountId = req.requestURI.substring(req.requestURI.lastIndexOf('/')+1);
        Account result = [SELECT Id, Name, Phone, Website FROM Account WHERE Id = :accountId];
        return result;
    }
  
  @HttpPost
    global static String doPost(String name,
        String phone, String website) {
        Account account = new Account();
        account.Name = name;
        account.phone = phone;
        account.website = website;
        insert account;
        return account.Id;
    }
}
for more details, click on below  link:
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_rest_code_sample_basic.htm

Mayur
 
Rupal KumarRupal Kumar
Hi Varun,
This sample shows you how to implement a simple REST API in Apex that handles three different HTTP request methods. For more information about authenticating with cURL, see the Quick Start (https://developer.salesforce.com/docs/atlas.en-us.200.0.api_rest.meta/api_rest/quickstart.htm) section of the Force.com REST API Developer Guide.

Create an Apex class in your instance from Setup by entering New in the Quick Find box, then selecting New and add this code to your new class: 
@RestResource(urlMapping='/Account/*')
global with sharing class MyRestResource {

    @HttpDelete
    global static void doDelete() {
        RestRequest req = RestContext.request;
        RestResponse res = RestContext.response;
        String accountId = req.requestURI.substring(req.requestURI.lastIndexOf('/')+1);
        Account account = [SELECT Id FROM Account WHERE Id = :accountId];
        delete account;
    }
  
    @HttpGet
    global static Account doGet() {
        RestRequest req = RestContext.request;
        RestResponse res = RestContext.response;
        String accountId = req.requestURI.substring(req.requestURI.lastIndexOf('/')+1);
        Account result = [SELECT Id, Name, Phone, Website FROM Account WHERE Id = :accountId];
        return result;
    }
  
  @HttpPost
    global static String doPost(String name,
        String phone, String website) {
        Account account = new Account();
        account.Name = name;
        account.phone = phone;
        account.website = website;
        insert account;
        return account.Id;
    }
}
More infomartion see this link (https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_rest_code_sample_basic.htm)

Thanks 
Rupal kumar
http://mirketa
farukh sk hdfarukh sk hd
Here integration is performed for deleting record from salesforce using rest api.
Hope this helps.

https://www.sfdc-lightning.com/2019/01/salesforce-rest-api-integration-to-delete-a-record.html