Build a GraphQL Federation Schema for an E-Commerce Platform
Overview
What this challenge is about.
Build a GraphQL Federation Schema for an E-Commerce Platform. Advanced challenge in code. Writing production code that solves real engineering problems, earn...
The Brief
What you'll do, and what you'll demonstrate.
Design a 5-subgraph Apollo Federation v2 schema and prove the federated router serves a real cart-checkout query end-to-end.
This is not a coding exercise. It is the work a software engineer does between a Jira ticket and a merged PR. That distinction matters to every hiring manager who has seen candidates solve LeetCode problems and none who have shipped production code under real constraints.
When you finish, you will have something most graduates do not: a real-world deliverable, verified by Ewance, that you can show to a hiring manager and say "I did this. Here is the proof."
Earning criteria — what you'll demonstrate
- Design a federated GraphQL schema across multiple bounded contexts
- Use Apollo Federation v2 directives correctly (@key, @requires, @provides)
- Implement subgraphs with Apollo Server in Node.js
- Reason about query planning and N+1 risks in federated graphs
Program Fit
Where this fits in your program.
Sharpens the same skills your degree expects you to demonstrate.
API Design and GraphQL
Master · Software Engineering
Strong alignment
This challenge maps to API Design and GraphQL at the Master level. It sharpens the same practical skills your coursework expects — but in a real industry context with actual constraints and deliverables.
Skills
Skills you'll demonstrate.
Each one shows up on your verified credential.
- Graphql
Apply graphql to solve real industry problems and demonstrate production-level capability.
- Graphql Federation
Apply graphql federation to solve real industry problems and demonstrate production-level capability.
- Api Design
Design RESTful and GraphQL APIs that are intuitive, consistent, and well-documented.
- Typescript
Write type-safe code that scales across large codebases and teams.
- Schema Design
Apply schema design to solve real industry problems and demonstrate production-level capability.
- Node Js
Apply node js to solve real industry problems and demonstrate production-level capability.
Careers
Career paths this challenge builds toward
Completing this challenge demonstrates skills that transfer directly to these roles: