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History

Rakesh Emmadi f6ed169219 allow ordering using columns from object relationships (closes #463 ) (#672 ) * allow ordering using columns from object relationships, close #463 * validate table fields in nested insert * add tests * add docs * change 'table_order_by' type from enums to ordered map * remove unwanted code from 'Schema.hs' file * 'AnnGObject' is not list of field name and value tuple * update docs for new order_by type * use 'InsOrdHashMap' for 'AnnGObj' * handle empty fields in order_by * remove '_' prefixes for asc/desc * fix the changed order_by syntax across the repo		2018-10-26 17:27:33 +05:30
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hasura	add community boilerplates and examples (#430 )	2018-09-13 12:00:07 +05:30
public	add community boilerplates and examples (#430 )	2018-09-13 12:00:07 +05:30
src	allow ordering using columns from object relationships (closes #463 ) (#672 )	2018-10-26 17:27:33 +05:30
.env	add community boilerplates and examples (#430 )	2018-09-13 12:00:07 +05:30
.gitignore	add community boilerplates and examples (#430 )	2018-09-13 12:00:07 +05:30
package-lock.json	add community boilerplates and examples (#430 )	2018-09-13 12:00:07 +05:30
package.json	add community boilerplates and examples (#430 )	2018-09-13 12:00:07 +05:30
README.md	add community boilerplates and examples (#430 )	2018-09-13 12:00:07 +05:30

README.md

realtime-location-app

A demo application to showcase real-time capabilities of Hasura GraphQL Engine.

The Realtime location application is built using React and is powered by Hasura GraphQL Engine over Postgres. It has an interface for users to track location of a vehicle using Hasura live queries, in real-time.

The application makes use of Hasura GraphQL Engine's real-time capabilities using subscription. There is no backend code involved. The application is hosted on GitHub pages and the Postgres+GraphQL Engine is running on Postgres.

Checkout the live app.
Explore the database using Hasura Console.

Running the app yourself

Deploy Postgres and GraphQL Engine on Heroku:
Get the Heroku app URL (say realtime-backend2.herokuapp.com)

Clone this repo:

git clone https://github.com/hasura/graphql-engine
cd graphql-engine/community/examples/realtime-location-tracking

Install Hasura CLI

Goto hasura/ and edit config.yaml:

endpoint: https://realtime-backend2.herokuapp.com

Apply the migrations:
```
hasura migrate apply
```

Edit HASURA_GRAPHQL_URL in src/constants.js and set it to the Heroku app URL:

export const HASURA_GRAPHQL_URL = 'realtime-backend2.herokuapp.com/v1alpha1/graphql';

Run the app (go to the root of the repo):
```
npm start
```