https://github.com/ihoro/rough-rx-pg

Rough implementation of rxified wrapper of node-postgres lib
https://github.com/ihoro/rough-rx-pg

javascript nodejs postgres reactive-extensions rxjs sql wrapper

Last synced: 12 months ago
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Rough implementation of rxified wrapper of node-postgres lib

• Host: GitHub
• URL: https://github.com/ihoro/rough-rx-pg
• Owner: ihoro
• License: mit
• Created: 2019-01-17T23:55:09.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2021-08-02T08:36:58.000Z (almost 5 years ago)
• Last Synced: 2024-12-16T21:35:34.986Z (over 1 year ago)
• Topics: javascript, nodejs, postgres, reactive-extensions, rxjs, sql, wrapper
• Language: JavaScript
• Homepage:
• Size: 5.86 KB
• Stars: 1
• Watchers: 1
• Forks: 3
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Rx'ified node-postgres (pg)

[![Build Status](https://travis-ci.com/ihoro/rough-rx-pg.svg?branch=master)](https://travis-ci.com/ihoro/rough-rx-pg)

[![npm version](https://badge.fury.io/js/%40rough%2Frx-pg.svg)](https://badge.fury.io/js/%40rough%2Frx-pg)

Rough implementation of [rxified](https://npmjs.com/rxjs) wrapper of [node-postgres](https://npmjs.com/pg) lib.

## Getting started

Installation

```

$ npm i pg @rough/rx-pg

```

A simple query

```js

const { finalize } = require('rxjs/operators');

const { Pool } = require('pg');

const RxPg = require('@rough/rx-pg');

const pool = new Pool({

  host: 'localhost',

  user: 'root',

  password: 'root',

  database: 'myproject',

  max: 50,

  idleTimeoutMillis: 30000,

  connectionTimeoutMillis: 2000

});

const rxpg = new RxPg(pool);

rxpg

  .query('select * from users')

  .pipe(finalize(_ => pool.end()))

  .subscribe(result => console.log(result));

```

A simple transaction

```js

rxpg

  .transaction(

    (rxpg, prevResult) => rxpg.query('select * from users where id = ? for update', 42),

    (rxpg, prevResult) => rxpg.query('delete from deals where user_scope_id = ?', prevResult[0].user_scope_id),

    (rxpg, prevResult) => rxpg.query('delete from inventory where user_id = ?', 42),

  )

  .pipe(finalize(_ => pool.end()))

  .subscribe(result => console.log(result));

```