Is Dapper better than Entity Framework?
Dapper is super awesome to handle complex queries that sport multiple joins and some real long business logic. Entity Framework Core is great for class generation, object tracking, mapping to multiple nested classes, and quite a lot more. So it’s usually Performance and Features when talking about these 2 ORMs.
When should you use Dapper?
To summarize, reasons might be:
- you want excellent raw execution performance with minimal overheads.
- you want to retain control over your SQL.
- you don’t need or want the object-tracking features of a full-fat ORM.
How to create Dapper repository in web API?
Create a solution named “DapperAndWebAPI” with a class library project named “DataAccess” and make the following folders for differnet activities. Entities- This will contain all the entity class files. Infrastructure- It will include all data access required files, like connection class.
How does the DDD repository pattern work in Dapper?
DDD repository pattern works with aggregate root object and persists it one or more tables or if event sourcing is used as series of events in event store. So in this instance, repository is actually related not to one database but to one aggregate root which can map to one or more tables.
How to bootstrap a repository class in Dapper?
Bootstrap code for repository class has the responsibility to create SqlConnection object and open the connection to database. After that, Dapper will utilize this connection to execute SQL queries against database. Make sure you have connection string named MainDb.
How is Dapper based on an extension class?
Dapper is based on an extension class for the IDbConnection interface, therefore DPGenericRepository needs an object IDbConnection injected in your constructor. We can create a DPGenericRepository in two different ways, which are given below. We can use a second constructor with a new char parameter.