illustration for Use GraphQL Data Loaders to Prevent Scaling Issues by Batching & Caching Database Requests
Course

Use GraphQL Data Loaders to Prevent Scaling Issues by Batching & Caching Database Requests

  7. 7
    Fetching an Item by ID with a GraphQL DataLoader
    42s

Fetching an Item by ID with a GraphQL DataLoader

Jacob Paris
InstructorJacob Paris
Share this video with your friends

Social Share Links

Send Tweet
Published 3 years ago
Updated 3 years ago

The DataLoader class is reusable and creating a new loader is as simple as changing the batch function

Instructor: [0:00] Let's take advantage of the reusability of the DataLoader and clone our userLoader to make a postLoader. Make a PostResolver that takes an ID as an argument and calls postloader.load. Then to the schema, add post, ID string, returning a post.

[0:26] Try that new query out. Look at ID 2 here. We'll try to query that one specifically. Give ID 3 a shot, and everything is working wonderfully.

egghead
egghead
~ 27 minutes ago

Member comments are a way for members to communicate, interact, and ask questions about a lesson.

The instructor or someone from the community might respond to your question Here are a few basic guidelines to commenting on egghead.io

Be on-Topic

Comments are for discussing a lesson. If you're having a general issue with the website functionality, please contact us at support@egghead.io.

Avoid meta-discussion

  • This was great!
  • This was horrible!
  • I didn't like this because it didn't match my skill level.
  • +1 It will likely be deleted as spam.

Code Problems?

Should be accompanied by code! Codesandbox or Stackblitz provide a way to share code and discuss it in context

Details and Context

Vague question? Vague answer. Any details and context you can provide will lure more interesting answers!

Markdown supported.
Become a member to join the discussionEnroll Today