j-dgraph

The easy-to-use package to query dgraph without GraphQL. So far it has been tested on Angular, Angular Universal, and Sveltekit. It should, however, work in almost any javascript framework both server side and client side.

Let me know if you have problems in the issue section.

It uses GraphQL, Urql, and my easy-dgraph package under-the-hood!

Installation

npm i j-dgraph

Example 1

A basic query with headers...

import { dgraph } from 'j-dgraph';

const _dgraph = new dgraph({ 
  url: 'https://your-endpoint/graphql', 
  headers: { "X-Auth-Token": localStorage.getItem('X-Auth-Token') }
});

const { data, error } = await _dgraph.type('post').filter('0x1').query({ id: 1, name: 1 }).build();

if (error) {
  console.error(error);
}

console.log(data);

Example 2

Pretty print errors, use headers, and a custom query...

import { dgraph } from 'j-dgraph';

...

const dg = new dgraph({
    url: 'https://your-dgraph-endpoint/graphql',
    headers: async () => ({ "X-Auth-Token": await this.getToken() }),
    isDevMode: isDevMode(),
    prefix: 'blog_'
}).pretty();

const { data, error } = await dg.type('queryFeatureSortedByVotes')
      .customQuery({
        id: 1,
        name: 1,
        url: 1,
        author: { id: 1 },
        totalVotes: 1,
        description: 1,
        votes: {
          id: 1
        }
      })
      .build()

if (error) {
  console.error(error);
}

console.log(data);

Example 3

Subscriptions work out-of-the-box with error handling!

import { dgraph } from 'j-dgraph';

const _dgraph = new dgraph({ url: 'https://your-endpoint/graphql' });

const sub = _dgraph.type('post').filter('0x1').query({ id: 1, name: 1 })
  .buildSubscription()
  .subscribe(
    (snapshot: any) => {

    console.log(snapshot);

  }, (error: string) => {

    console.error(snapshot);

  });
...

onDestroy(() => 
    sub.unsubscribe();
);

Constructor Options

/**
 * @param 
 *   url - api endpoint url
 *   type? - node name
 *   isDevMode? - boolean for Developer Mode
 *   fetch? - fetch function
 *   headers? - headers function, can be async
 *   prefix? - the prefix name for the type
 */

Note: In development mode, all GraphQL queries and results are printed to the console. I have simplified all messages in DGraph to be easily readable, including errors.

You can also import the EnumType from easy-dgraph like so:

import { dgraph, EnumType } from 'j-dgraph';

• Errors are thrown, so use try / catch blocks to catch them.
• use .networkOnly() if you want to skip graphql caching

Every single thing you can do in Dgraph's GraphQL, you can do with no configuration with this package.

J

For All Easy-DGraph Documentation, see: dev.to: easy-dgraph

For Examples, see: Test File