REST API

REST API

Server ORG:
1. Creata Connected app (Setup>>Create>>Apps>>Connected Apps:New) by providing the Callback URL and NOTE Consumer key and Consumer Secret to forward to Client Org.
Callback URL for SFDC is   https://login.salesforce.com/services/oauth2/callback

2. Create the Rest Resource
@RestResource(urlMapping='/MappingDataService/*')
global with sharing class MappingData {
  @HttpPost
    global static void MappingDetails(String Name,String Phone){
           system.debug('---name---'+name);
           system.debug('---Phone---'+Phone);
           Account objA = new Account();
           objA.Name = Name;
           objA.Phone = Phone;
           insert objA;
    }
}

Client ORG:
  1. Create page and in the controller fill the Consumer Key and Consumer Secret received from Server side.
Page:
<apex:page controller="AccInsertClas">
 <apex:form >
     <apex:pageBlock >
         <apex:pageBlockSection columns="1">
             <apex:inputfield value="{!objA.Name}"/>
             <apex:inputfield value="{!objA.Phone}"/>
         </apex:pageBlockSection>
         <apex:commandButton value="Save" action="{!doSave}" style="margin-left:20%;"/>
     </apex:pageBlock>
 </apex:form>
</apex:page>


Controller class:

public with sharing class AccInsertClas {

    public void doSave() {
              
      string username = 'test@gmail.com';
      string password = 'test@123XlpZxtqhPwrY96BgoAsjaDlU';
      string ConsumerKey = 'ddddd6d_Btp4xp4AGZRP.n5EoVhmYQjQH6IMxRk1LO.v8FcqJsNqriKPd4bp5dlfmnU6W.vFWTQ5dP7U1Ajf';
      string clientId = '4g555117865294009';
      string URI = 'https://ap1.salesforce.com/services/oauth2/token?grant_type=password&' + 'client_id=' + ConsumerKey + '&' + 'client_secret=' + clientId + '&' + 'username=' + username + '&' + 'password=' + password;
                HttpRequest req = new HttpRequest();
                req.setEndpoint(URI);
                req.setMethod('POST');
                Http http = new Http();
                HTTPResponse res = http.send(req);
                System.debug('*** After Authentication...'+res.getBody());
        
        
             string accsToken = '';
        JSONParser parser1 = JSON.createParser(res.getBody());
         while (parser1.nextToken() != null) {
             if ((parser1.getCurrentToken() == JSONToken.FIELD_NAME) && (parser1.getText() == 'access_token')) {
                  parser1.nextToken();
               accsToken = parser1.getText();
            }
        }
     system.debug('accsToken===========>'+accsToken);
    
     URI = 'https://ap1.salesforce.com/services/apexrest/MappingDataService/MappingData';
    req =  new HttpRequest();
    req.setEndpoint(URI);
    req.setMethod('POST');
    req.setHeader('content-type','application/json');
    string postData = '{ \"Name\": \"'+ objA.Name +'\",\"Phone\": \"'+ objA.Phone +'\"}';
    system.debug('--postData--->'+postData);
     req.setBody(postData);
      req.setHeader('Authorization', 'OAuth ' + accsToken);
     res = http.send(req);
     system.debug('----res--->'+res);      

      
    }

    public Account objA{get;set;}
    public AccInsertClas(){            // Constructor
        objA =new Account();
    }    
}

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