Update todos - mutation

In this part of the tutorial, you will learn how to mark an existing todo as completed by using GraphQL Mutations.

Let's define a graphql query to do a mutation into todos. In the file src/graphql-operations/index.ts, add the following:

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export const UPDATE_TODO_BY_PK = gql`
    mutation update_todos_by_pk($pk_columns: todos_pk_columns_input!, $_set: todos_set_input!) {
        update_todos_by_pk(pk_columns: $pk_columns, _set: $_set) {
            id
            title
            is_completed
            created_at
            is_public
        }
    }
`

You will also need to pass in the values for the variables.

Try this mutation in GraphiQL against the application database to see what the response looks like.

Let's now integrate this graphql mutation into our vue app.