This post is about GraphQL in ASP.NET Core with EF Core. In this post we will explore how to implement mutations using ASP.NET Core. Mutations help you to update the data in the database. Here is the Mutation class. In this class, we are adding the link object to database using Entity Framework Core.
Next, we need to configure the Mutation class to the GraphQL pipeline like this.
You can use the following code to implement update operation as well.
And you can get the schema and know about the Mutation operations in GraphQL from Schema Reference.
You can execute the mutation operation like this.
Once it execute the operation and then it return the Url, title and description, like this.
If you’re not specifying the return object, GraphQL will show an error like this.
Mutation will help you to alters data, like inserting data into a database or altering data already in a database.