5 Simple Techniques For dapper tutorial for beginners
5 Simple Techniques For dapper tutorial for beginners
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To proficiently discover ASP.NET MVC, specific stipulations will let you grasp the ideas extra effortlessly and implement them properly. In this article’s a listing of The crucial element prerequisites:
We inject the IConfiguration interface to help entry to the link string from our appsettings.json file. Also, we build the CreateConnection strategy, which returns a new SQLConnection item. For this to operate, we must include various using statements:
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Dapper is a lightweight, significant-general performance facts entry Instrument constructed via the Stack Overflow group. It provides a minimalist approach to facts obtain layer in .
Swagger is the favorite API testing Device for almost every single developer. It would make your daily life really easy. Let’s incorporate swagger to our WebApi and test our implementation thus far.
QuerySingleOrDefault – executes a query and maps The end result or simply a default value In the event the sequence is vacant. It throws an exception when there is more than one factor within the sequence
In this article, we produce a variable which contains a procedure title in addition to a dynamic parameter object with an individual parameter inside of. Simply because our stored technique returns a value, we use the QueryFirstOrDefaultAsync strategy to execute it.
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Needless to say, if you have requested Dapper to return a certain form, just like the Consumer while in the sample code demonstrated prior to, you will have the asked for item returned as opposed to “Row”.
QuerySingle – an extension approach that executes a query and maps The end result. It throws an exception when there is not particularly just one aspect from the sequence
Now, we must determine the link string of our database, to ensure that the application can hook up with our Databases for executing CRUD operations. Open up up the appsettings.json file from the Dapper.WebApi Task and incorporate the following
It is amongst the swiftest and easiest all-around, nevertheless it is very extensible and, earlier mentioned all, nicely adopted and Utilized in very significant-overall performance Internet websites. Much more specially has been designed and is particularly maintained by the blokes guiding StackOverflow, so you can make sure it can be struggle-tested. Source code is on GitHub
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Right here, we build our question along with a dynamic parameters item (we aren't using an nameless object any longer). We populate that item with our 3 parameters and after that connect with the ExecuteAsync strategy to execute our insert statement.
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