The new modern App
GraphQL
Serverless
meets
Developer Advocate
Web / Mobile / VR / AR / IoT
GDE, author, consultant
What is GraphQL
GraphQL
A query language for your API
What's wrong with REST
Resfull API
The core idea is to have a URL for every resource
RESTfull API problems
Description of resource is coupled to implementation
Overfetching
Underfetching
chaining requests to server to get needed data
So how does GraphQL solve it
Avoid over-fetching
Prevent multipe API calls
Lesser communication with API developers
Self-documenting
GraphQL
How do you start?
What is Hasura
open source and free engine that gives you auto-generates real-time GraphQL API on top of new or existing Postgres database
Features
- Can be deployed to any cloud or run locally
- Compatible with all Authentication solutions
- Can run on top of new or existing Postgres database
- Supports Postgres addons (PostGIS, TimescaleDB)
- Auto-generates GraphQL api
- GraphQL queries are compiled to performant SQL statements using native Postgres features
Features
- Comes with hasura-cli which has awesome tools like migrations and more
- Can work with custom SQL statements
- Has configurable access controls for data
- Can be connected to your own GraphQL server (does schema stitching)
- Has eventing system which enables to trigger serverless functions
3factor.app Architecture
How to get started with Hasura
-
Go to hasura.io
-
Click on Get started with Heroku
-
Click on
-
Enter your app name
Let's see it in action
Hasura Console overview
Hasura Console overview
- GraphiQL - run your queries in in-browser IDE
- Data - manage your data, access control, relations, permissions
- Remote Schemas - stitch GraphQL schema of your custom GraphQL server
- Event Triggers - connect your serverless functions
GraphiQL tab - use for development
- Set endpoint headers
- Execute queries and mutations
- Analyse queries
Data tab - data management interface
- View and insert data into db
- create and modify tables
- Create relationships
- set permissions and access control
- execute custom sql statements
Remote Schemas tab
stitch your custom GraphQL server schema
Event triggers
- connect custom webhooks to database events to execute serverless functions
- set retry logic
- forward custom headers to webhook
Authentication
Run hasura locally on top of existing postgres
Want to learn more?
React, Vue, Angular, React Native,
iOS, Android, Flutter, Elm, ReasonML
Thank You
@VladimirNovick
The new modern app
By Vladimir Novick
