iyashwantsaini/mern_event_booking

A complete MERN stack + GraphQL application

JavaScriptMIT

MongoDB+Express+React+Node+GraphQL

A complete Event Booking Application using MERNG

Rest API

Stateless ,client independent API for data exchange.
We always send all data back to the client from an endpoint.
If we want some less data we'll need to create a new endpoint in backend or we'll send parameters for the data we need.
GET/POST/PUT/... requests.
Routes & Controllers.

GraphQL API

Stateless ,client independent API for data exchange with higher query flexibility.
No problem here regarding queries (very flexible).
Only POST requests for every type of request to one single endpoint.
Operation definitions and Resolvers.
graphQL is a typed language.
Eg. Query Language

{
    query { //operation : type
        user{ //operation : endpoint
            name //requested fields
            age
        }
    }
}

Operation types in GraphQL

Query -- "for GET"
Mutation -- "for POST/PUT/PATCH/DELETE"
Subscription -- "setup realtime connection with sockets"

Design

Event booking API

Event - Create, Update, Delete, View(Read)
Users - Connected to events || Filters -- CreatedBy, Booked || BooksEvents, Cancel Booking

Packages

npm install --save express body-parser

npm install --save-dev nodemon

npm install --save express-graphql graphql
npm install --save mongoose

npm install --save bcryptjs

npm install --save jsonwebtoken

Run

prod -- node app.js
dev -- npm start(uses nodemon)

To kill all node ports

killall node

Error Fixes

if graphiql not working try on "http" instead of "https"

Remember

Dates are passed via "new Date().toISOString()"

CORS

remember to set CORS policy to server

License

Contributors