GraphQL API Development: Schema Design,Security & Deployment

Overview

Build GraphQL APIs that go beyond basic queries—secure, real-time, and cloud-ready. In this course, you’ll master advanced schema design, secure data flow, real-time subscriptions, and scalable deployment. Use Apollo Server, Pub/Sub systems, and platforms like Render and Railway to build robust apps that perform in production. Module 1 dives into enums, interfaces, and unions to create flexible, type-safe APIs with clean mutation logic. Module 2 unlocks advanced features—custom scalars, validation, authentication, and live updates via subscriptions. Module 3 shows how to wire up databases, manage config, and push to the cloud confidently. By the end, you will... -Design advanced GraphQL schemas with modular, maintainable types -Build secure mutations with validation and input handling -Add real-time capabilities with Pub/Sub and GraphQL subscriptions -Deploy your GraphQL APIs to modern cloud platforms with confidence Disclaimer: This course is an independent educational resource developed by Board Infinity and is not affiliated with, endorsed by, sponsored by, or officially associated with GraphQL Foundation or any of its subsidiaries or affiliates. This course is not an official preparation material of GraphQL Foundation. All trademarks, service marks, and company names mentioned are the property of their respective owners and are used for identification purposes only.

Syllabus

Mutations and Schema Design

This module focuses on expanding your GraphQL schema design skills. You’ll learn to create mutations that enable data manipulation, define enums, interfaces, and unions for scalable type systems, and organize large schemas using modular architecture. By the end, you’ll be equipped to model complex domains and build structured GraphQL APIs that are both readable and maintainable.

Subscriptions and Authorization

Building upon the fundamentals, this module focuses on the GraphQL Schema Definition Language (SDL). Learners will explore how to define custom types and fields, differentiate between query and mutation types, and implement resolvers to fetch data. The module also covers handling nested relationships, using aliases and fragments, and strategies to avoid over-fetching, ensuring efficient data retrieval.

Server Setup and Deployment

This module emphasizes making GraphQL queries dynamic and efficient. Students will learn to use arguments and variables to create flexible queries, apply best practices in query construction, and integrate GraphQL with frontend frameworks using tools like Apollo Client. The module concludes with a course wrap-up, summarizing key takeaways and preparing learners for advanced topics in the specialization.