GraphQL Testing with Postman: Scribes of the Duat

Read a GraphQL schema and send queries, mutations and subscriptions from Postman. Find the defects typical for GraphQL, such as a 200 with errors, a broken non-null contract and unbounded queries, and leave behind a collection whose scripts check every request.

31 lessons · 367 stepscertificate

Course program

The full outline. Lessons open when the course does.

The gate and the language of the gods

The gate of the Duat10 steps

SDL and types13 steps

Introspection in Postman14 steps

Nullability10 steps

Enums12 steps

Custom scalars10 steps

Asking the Duat

First query in Postman12 steps

Lists and limits11 steps

One record by id9 steps

Tokens and authorization14 steps

Variables12 steps

Changing fates

First mutation13 steps

Update mutations15 steps

Append to a list12 steps

Delete mutations13 steps

Subscriptions11 steps

The scribe's craft

Aliases9 steps

Batched mutations10 steps

Fragments9 steps

Skip and include10 steps

Operation names and review9 steps

Where GraphQL breaks

Query depth and width10 steps

Concurrent updates15 steps

The 200 OK trap10 steps

The scribe's automation

Test scripts12 steps

Token automation14 steps

Security audit13 steps

Contract tests13 steps

Request chaining14 steps

The pyramid of tests15 steps

Back at Shelf13 steps

The author

Artsiom Rusau – QA engineer and course author. He has tested software since 2019 and has taught software testing since 2020.

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