How to Insert Opportunity Record with Product and PriceBook in Salesforce through Apex Code

Here is the example to inserting Opportunity Record with Product and PriceBook in Salesforce through Apex Code

1. // Insert Product
2. Product2 pr = new Product2();
3. pr.Name='Moto - G1';
4. pr.isActive=true;
5. insert pr;
6. 
   
7. // Insert Pricebook
8. PriceBook2 customPriceBook = new PriceBook2();
9. customPriceBook.Name='Custom Pricebook';
10. customPriceBook.IsActive=true;
11. insert customPriceBook;
12. 
    
13. // Query Standard and Custom Price Books
14. Pricebook2 customPriceBookRec=[select Id from Pricebook2 where id=:customPriceBook.Id];
15. Id stdPriceBookRecId = Test.getStandardPricebookId();
16. 
    
17. // Create Standard PriceBookEntry
18. PriceBookEntry stdPriceBookEntry = new PriceBookEntry();
19. stdPriceBookEntry.Product2Id=pr.Id;
20. stdPriceBookEntry.Pricebook2Id=stdPriceBookRecId;
21. stdPriceBookEntry.UnitPrice=2000;
22. stdPriceBookEntry.IsActive=true;
23. insert stdPriceBookEntry;
25. // Create Custom PriceBookEntry
26. PriceBookEntry customPriceBookEntry = new PriceBookEntry();
27. customPriceBookEntry.Product2Id=pr.Id;
28. customPriceBookEntry.Pricebook2Id=customPriceBookRec.Id;
29. customPriceBookEntry.UnitPrice=5000;
30. customPriceBookEntry.IsActive=true;
31. insert customPriceBookEntry;
32. 
    
33. // Create Opportunity
34. Opportunity opp = new Opportunity();
35. opp.Name = 'Test';
36. opp.CloseDate= System.Today();
37. opp.StageName='Prospecting';
38. insert opp;
39. 
    
40. // Add product and Pricebook to the particular opportunity using OpportunityLineItem 
41. OpportunityLineItem oppLineItem = new OpportunityLineItem();
42. oppLineItem.OpportunityId = opp.Id;
43. oppLineItem.PricebookEntryId = customPriceBookEntry.Id;
44. oppLineItem.UnitPrice = 7000;
45. oppLineItem.Quantity = 5;
46. insert oppLineItem;