Automatic query optimization in GraphQL - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to select the user's name in a GraphQL query.

GraphQL

query { user { [1] } }

Drag options to blanks, or click blank then click option'

Aemail

Bage

Cid

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing a field that does not exist in the user type.

Using a field that returns a number instead of a string.

The field name is used to fetch the user's name in the query.

2fill in blank

medium

Complete the code to fetch the list of posts with their titles.

GraphQL

query { posts { [1] } }

Drag options to blanks, or click blank then click option'

Atitle

Bcontent

Cauthor

Ddate

Attempts:

3 left

💡 Hint

Common Mistakes

Selecting content instead of title when only titles are needed.

Choosing a field that returns an object instead of a string.

The title field fetches the title of each post.

3fill in blank

hard

Fix the error in the query to fetch user email correctly.

GraphQL

query { user { [1] } }

Drag options to blanks, or click blank then click option'

Aemails

Bemail

Cmail

DuserEmail

Attempts:

3 left

💡 Hint

Common Mistakes

Using plural or incorrect field names like emails or userEmail.

Guessing field names without checking the schema.

The correct field to fetch the user's email is email.

4fill in blank

hard

Fill both blanks to optimize the query by selecting only needed fields.

GraphQL

query { user { [1] [2] } }

Drag options to blanks, or click blank then click option'

Aid

Bname

Cemail

Dposts

Attempts:

3 left

💡 Hint

Common Mistakes

Including unnecessary fields like posts which can slow down the query.

Missing important fields like email when needed.

Selecting only name and email fetches just the needed user info, optimizing the query.

5fill in blank

hard

Fill all three blanks to write a query that fetches post title, author name, and date.

GraphQL

query { posts { [1] author { [2] } [3] } }

Drag options to blanks, or click blank then click option'

Atitle

Bname

Cdate

Dcontent

Attempts:

3 left

💡 Hint

Common Mistakes

Selecting content instead of date which can be large.

Using wrong author field names.

This query fetches the title of posts, the name of the author, and the date of the post, which are common useful fields.