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Sahil YadavSahil Yadav 

Salesforce Integration Using Rest API

Hello Folks, 
               I am still exploring on Integration part in salesforce but for now i had come accroseed a requirement that from salesforce i needed to send the opportunitylineitem record from salesforce to external system So here is my code 
Global class IntegrationClass {
    global static List<opportunity> doGet() {
        RestRequest req = RestContext.request;
        RestResponse res = RestContext.response;
        String BuyerId = req.requestURI.substring(req.requestURI.lastIndexOf('/')+1);
        Account result = [SELECT Id, Name, Phone,Bi_Id__c, Website FROM Account WHERE Bi_Id__c = :BuyerId];
                String acc = result.Id;
                List<Opportunity> opp = [Select id, name, accountId from Opportunity where accountId =:acc ];
                 return opp;
    public static void sendData(){
        Http http = new Http();
        HttpRequest request = new HttpRequest();
        OpportunityLineItem opp = [Select id, name,ListPrice,UnitPrice, Opportunity.Id,Opportunity.CloseDate, Opportunity.Account.BI_ID__c from OpportunityLineItem  Limit 1];
        String name =;
        System.debug('!!!' +name);
        Decimal listPrice = opp.ListPrice;
        System.debug('!!!' +listPrice);
        Decimal unitPrice = opp.UnitPrice;
        System.debug('!!!' +unitPrice);
        Date closeDate = opp.Opportunity.CloseDate;
        System.debug('!!!' +closeDate);
        request.setBody('{OpportunityLineItem opp}');
        request.setBody('{"Name":"any--JUL 2022 Mobile", "ListPrice" : "123.00", "UnitPrice" : "123.00" , "CloseDate" : "2022-07-01 00:00:00"}');
        request.setHeader('Content-Type', 'Application/Json; charset = UTF-8');
        HttpResponse response = http.send(request);


 So I will be getting opportunity line item record which is been needed
to sent and serializing it so the way I sent that seriallized record is the correct way to pass under request body or there is some other way around. 
Please let me know or any suggestion
VinayVinay (Salesforce Developers) 
Hi Sahil,

Did you check using post man tool with mock response?  Do you see similar error?