Realtime GraphQL using Redis Streams, and Redis Search

Showcases how to use Realtime GraphQL using Redis Streams and real-time search usingRedis Searchin Java

Previews

GraphQL playground tab3

GraphQL playground tab1

Start Redis and the Spring Boot Application in local dev env

Prerequisites:

Start the Docker Compose application:
```
cd redi2hack
docker-compose up
```

Run the Spring Boot app to build the application.

./mvnw clean -Dspring-boot.run.profiles=local spring-boot:run

Goto: http://localhost:8080/playground

Architecture

Highlevel diagram

GraphQL is supported using Spring Boot which is backed by Redis enterprise data store.

Dataflow diagram

The data flows from left to right - from GraphQL->Redis and Redis->GraphQL.

createCustomer, updateCustomer, and deleteCustomer GraphQL mutations use Redis hash and stream data to store the state and push the events.
subscribeEvents (GraphQL subscription) uses Redis Stream to fetch all customer events or the latest customer events.
searchCustomers GraphQL query usesRedis Searchto search customers.
customers and findCustomer use Redis Hash to find the all or a particular customer.

How it works

This project shows how to use GraphQL Subscription to push event data from the server using Redis Streams and support real-time search using Redis Search.

RediStreams: to capture all the customer events
Redis Search: to support search customer capabilities
RediHash: to store customer data
GraphQL:
- Subscription: to push real time customer events
- Mutation: to create/update/delete the customer state
- Query: to query/search customer information

Goto: redi2hack.herokuapp.com

Note: The app comes with the necessary sample code to follow.

Deployment

To make deploys work, you need to create free account in https://redislabs.com/try-free/

redis-developer/redi2hack