Limit the Amount of Returned Data with Prisma Client
Prisma Client allows us to limit the amount of data that is returned from queries. It also allows us to be specific about which data should be included in the returned dataset. In this lesson, we use the select and include operators to be specific about the shape of our returned data.
Ryan Chenkie: [0:00] We can use Prisma to get back only a subset of the information that is contained within a table. For example, when we get back our reviews on the products, we may not want the id for the review or the productId. We might just want the text and the rating.
[0:14] In the include call, say that you want to get back only those two fields. Reviews becomes an object, in which we provide the select keyword. We say that text should be true and rating should be true as well. Save the endpoint and check it out in the browser.
[0:31] We can apply the same pattern to the base products model that we are querying for. If, for example, we wanted to get just the name and reviews, we can do so in the findMany call. To do so, we need the select keyword.
[0:45] Select and include cannot exist together at the root. In this case, we need to use just select. We can provide name: true to select, and then we can just take the reviews selection that we have already set up and put it up into the top level select. Then we get rid of include and save the endpoint to check it out in the browser.