This method accepts our query as a parameter in addition to a Func delegate that accepts two parameters of form Company close Worker. Inside the delegate, we try to extract a firm by its Id worth. If it doesn’t exist, we retail outlet it In the currentCompany variable and insert it on the dictionary. Also, we assign all the staff to that latest firm and return it from a Func delegate.
We inject the IConfiguration interface to allow entry to the link string from our appsettings.json file. Also, we make the CreateConnection approach, which returns a fresh SQLConnection object. For this to operate, we must include a number of working with statements:
QueryMultiple – an extension method that executes several queries throughout the exact same command and maps benefits
Dapper is a lightweight, high-effectiveness details access Resource built with the Stack Overflow workforce. It provides a minimalist approach to info access layer in .
Execute – an extension technique that we use to execute a command a single or several moments and return the quantity of influenced rows
Now, if we contact this method and go a corporation for development to it, it'll produce a new entity for us. But, although generating API’s Article motion, it is a superb apply to return a website link, which the API’s users can use to navigate on the established entity.
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You've got whole control in excess of how parameters are despatched for the database, as you are able to see from what get executed:
QueryFirstOrDefault – we use this technique to execute a question and map the first consequence or perhaps a default value In case the sequence has no components
Several notes right here. Given that we don’t have any small business logic, we're not developing a provider layer to wrap our repository layer. For this kind of software, the service layer would get in touch with repository approaches and very little much more, adding dapper tutorial for beginners an unnecessary volume of complexity to the posting. Of course, we always endorse using the service layer in larger-scale apps.
Lightweight: Dapper is a lightweight library with minimal dependencies. It doesn’t impose any intricate configuration or setup, which makes it very easy to combine into your assignments.
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Listed here, we make our query and a dynamic parameters object (we are not applying an anonymous object any more). We populate that object with our 3 parameters after which contact the ExecuteAsync process to execute our insert statement.
Simplicity at its Main: Dapper.NET concentrates on simplicity and ease of use. It doesn't make an effort to abstract absent the databases, letting you to jot down and optimize your SQL queries instantly.