@kothique/moleculer-rethinkdbdash
v1.0.1
Published
Moleculer service ensuring specified dbs, tables, and indices exist, and giving access to the driver.
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@kothique/moleculer-rethinkdbdash
Install
$ npm install --save @kothique/moleculer-rethinkdbdash
Usage
'use strict';
const { ServiceBroker } = require('moleculer');
const RService = require('@kothique/moleculer-rethinkdbdash');
const broker = new ServiceBroker({ logLevel: 'debug' });
// Create a DB service for `user` entities
broker.createService({
name: 'users',
mixins: [RService],
/* Options passed to `rethinkdbdash` directly. */
rOptions: {
db: 'mydb', // rethinkdbdash's option, has nothing to do with the mixin
timeout: 30,
buffer: 80
},
/* Ensure certain dbs, tables, and indices are created. */
rInitial: r => ({
mydb: { // Ensure database `mydb` exists
users: { // Ensure table `users` exists in `mydb`
$default: true, // So that `this.rTable` === `this.r.db('mydb').table('users')`
$options: { // Options passed to `tableCreate`
primaryKey: 'boom',
durability: 'soft'
},
// Ensure indexes exist in `users`
username: true,
my_awesome_compound_index: {
$function: [r.row('compound'), r.row('index')] // Index function
},
nicknames: {
$function: r.row('nestedData')('nicknames'),
$options: { multi: true }
}
},
/*
anotherTable: {
...
},
...
*/
},
/*
anotherDB: {
...
},
...
*/
}),
/* Called when all dbs, tables, and indices are created. */
async rOnReady() {
const usersByAge = await this.rTable.orderBy(this.r.desc('age'));
const changesCursor = await this.r.db('boom').table('meow').changes();
// ...
}
});
broker.start();