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var express = require('express');
var app = express();

//your routes here
app.get('/respond', function (req, res) {
    res.send("Hello World!");
});

app.listen(8080, function () {
  console.log('Example app listening on port 8080!');

coco98

const fetch = require('isomorphic-fetch');

const express = require('express');
const app = express();

//your routes here
app.get('/hello', function (req, res) {
    const url = 'http://api2.default/respond';
    const options = {
      method: 'GET'

coco98

# Fetch authors and their articles
# and relevant fields within those objects only
query {
  author {
    id
    name
    articles {
      id
      title
    }

coco98

{
  "query": "read",
  "node": "author",
  "columns": [
      "id",
      "name",
      {
          "node": "articles",
          "columns": ["id", "title"]
      }

coco98

#An array of artists are returned by a GET query to /v1/artists
# artists = [
#   {
#     "name": "...",
#     "genre": "...",
#     "albums_recorded": <int>,
#     "username": "..."
#   }
# ]
#

coco98

Requirements

• You have an existing Hasura project, cluster
• You have a microservice running where you can add a webhook
• You have kubectl installed. Check by running: kubectl get pods -n hasura which should list all the hasura microservices

Step 1: Update the platform to v0.15.34+

Check your platform version:

coco98

Before	After
App makes an API request and waits.	App makes a GraphQL mutation and then runs a GraphQL subscription to get updates as they happen
Backend API makes multiple API calls, with complex retry and error handling logic	Business logic in serverless functions get triggered automatically after the mutation
App receives API response	App gets success/error updates as they happen

coco98

query fetchOrders {
  order (limit: 10, order_by:created_at_desc) {
    id
    user_name
    items {
      detail {
        id
        name
      }
    }

coco98

#Query running against data the DB
query {
  albums {
    id
    title
  }
}

#Query running against your own code that may or may not talk to the database
#These APIs are hosted at: https://graphql-pokemon.now.sh

coco98

// Boolean expression for a column
"column": {
  "_eq": "value",
  "_gt": "value"
}


// AND expression
"and": {
  "column1": {...},