Who it’s for
Engineers with the listed foundations who want to deepen this skill or apply it in a different stack.
Starting point: IntermediateBackend, APIs & databases · Corporate training
Sample curriculum
GraphQL
Design GraphQL schemas and connect clients to predictable, secure API operations.
- Intermediate
- Live online and in person
At a glance
Bring these foundations
- JavaScript, API concepts, and basic backend development.
Technologies & tools
- GraphQL
- Apollo Server
- Node.js
- API client
A practical destination
Skills to practise.
The sample path works towards these capabilities. Final goals reflect your team’s starting point and agreed scope.
- 01
Design a schema and connect it to resolvers.
- 02
Handle mutations, validation and errors explicitly.
- 03
Review query performance and client integration.
Sample curriculum
Follow the learning route.
Each module connects the concepts to practical work. Open a module to explore both.
01Module 1GraphQL foundations
Concepts to understand
- Schemas, types, and operation structure
- Queries, variables, and fragments
- Resolvers and data sources
Practical work
Create a schema for related resources and implement resolvers. Query just the fields a screen requires.
Show the result. Explain one decision. Identify what you would improve.
02Module 2Writing data & handling errors
Concepts to understand
- Mutations and input types
- Validation and error responses
- Context and authentication
Practical work
Add a mutation with validation and meaningful error handling. Explain what belongs in the schema versus the business logic.
Show the result. Explain one decision. Identify what you would improve.
03Module 3API design & performance
Concepts to understand
- Relationships and pagination
- N+1 queries and batching
- Authorization and query cost boundaries
Practical work
Inspect a nested query for repeated data fetching and access rules. Compare a straightforward resolver with a batching approach.
Show the result. Explain one decision. Identify what you would improve.
04Module 4Client integration & testing
Concepts to understand
- Client queries and cache behavior
- Testing resolvers and API operations
- Schema evolution and documentation
Practical work
Connect a client feature, test its operations and review loading and partial-error behaviour.
Show the result. Explain one decision. Identify what you would improve.
A sample project
Bring the skills together.
Build a GraphQL API and client feature with typed operations, pagination, and authorization checks.
Shorter engagements can focus on selected exercises. A larger, learner-owned capstone can be scoped for a longer programme.
Review the work & reasoning
Four useful questions.
- 01
Does the work meet the agreed requirements?
- 02
Can the learner explain the key decisions and trade-offs?
- 03
What happens with invalid input, failure or an unexpected condition?
- 04
What would they change or explore next?
Designed & delivered by Ragav Kumar V.
Training since 2016 · 100+ batches · 3,000+ professionals trained
Live demonstrations, guided exercises, pair work and project reviews connect the concepts to implementation. We agree the goals, starting knowledge, cohort size, delivery and schedule before shaping the final curriculum.
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