GraphQL Fundamentals Training
Avoid costly mistakes and cut your learning curve for GraphQL adoption
Overview
The course duration is 1 working day split into two main blocks of teachings. First block is usually held before lunch and is mainly dedicated to the environment setup and GraphQL core concepts demonstrations. The second part is focused on live coding of real application driven by GraphQL. We will implement all GraphQL concepts learned in the first part in Node.js and React. The training is being held either on-site (usually Prague/London) or remotely through streaming.
PART 1a
What we will build?
Participants will build AG News application that helps to classify articles into topics. The frontend will be written in React and Next.js. Data are served through GraphQL API, which is built in Node.js. PostgreSQL is used as the database. Predictions for unclassified news are implemented using GraphQL mutation that accesses pre-trained machine learning model.
- What we will build?
- Architecture
- Frontend boilerplate
- Backend boilerplate
- Machine learning model
- Database migrations
PART 1b
GraphQL Language
- GraphQL introduction: What is GraphQL? Why we need GraphQL? Modelling relationships in GraphQL
- GraphQL request lifecycle
- GraphQL document: basics and syntax, arguments and variables, queries and mutations
- GraphQL schema: Type system, root types, input & output types, modifiers, scalars and enums
- Classifier
PART 2a
GraphQL Server
- GraphQL Server: Apollo server with Express
- GraphQL schema for users
- Basic authentication resolver
- Authenticated user resolver
- GraphQL schema for articles
- Articles query, predict article topic, update and delete article
PART 2b
GraphQL Client
- GraphQL Server: Apollo server with Express
- GraphQL schema for users
- Basic authentication resolver
- Authenticated user resolver
- GraphQL schema for articles
- Articles query, predict article topic, update and delete article