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* just the docs, round 1

* update

* fix

* fix

* fix

* fix

* Fix pages.yml

* Update readme.md

* Update readme.md

* Update readme.md
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timgit authored Sep 24, 2024
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72 changes: 72 additions & 0 deletions .github/workflows/pages.yml
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# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.

# Sample workflow for building and deploying a Jekyll site to GitHub Pages
name: Deploy Jekyll site to Pages

on:
push:
branches:
- "master"
- "gh-pages-docs"
paths:
- "docs/**"

# Allows you to run this workflow manually from the Actions tab
workflow_dispatch:

# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
permissions:
contents: read
pages: write
id-token: write

# Allow one concurrent deployment
concurrency:
group: "pages"
cancel-in-progress: true

jobs:
# Build job
build:
runs-on: ubuntu-latest
defaults:
run:
working-directory: docs
steps:
- name: Checkout
uses: actions/checkout@v4
- name: Setup Ruby
uses: ruby/setup-ruby@v1
with:
ruby-version: '3.3' # Not needed with a .ruby-version file
bundler-cache: true # runs 'bundle install' and caches installed gems automatically
cache-version: 0 # Increment this number if you need to re-download cached gems
working-directory: '${{ github.workspace }}/docs'
- name: Setup Pages
id: pages
uses: actions/configure-pages@v5
- name: Build with Jekyll
# Outputs to the './_site' directory by default
run: bundle exec jekyll build --baseurl "${{ steps.pages.outputs.base_path }}"
env:
JEKYLL_ENV: production
- name: Upload artifact
# Automatically uploads an artifact from the './_site' directory by default
uses: actions/upload-pages-artifact@v3
with:
path: "docs/_site/"

# Deployment job
deploy:
environment:
name: github-pages
url: ${{ steps.deployment.outputs.page_url }}
runs-on: ubuntu-latest
needs: build
steps:
- name: Deploy to GitHub Pages
id: deployment
uses: actions/deploy-pages@v4
15 changes: 15 additions & 0 deletions docs/.gitignore
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# Not sure what a .gitignore is?
# See: https://git-scm.com/docs/gitignore

# These are directly copied from Jekyll's first-party docs on `.gitignore` files:
# https://jekyllrb.com/tutorials/using-jekyll-with-bundler/#commit-to-source-control

# Ignore the default location of the built site, and caches and metadata generated by Jekyll
_site/
.sass-cache/
.jekyll-cache/
.jekyll-metadata

# Ignore folders generated by Bundler
.bundle/
vendor/
7 changes: 7 additions & 0 deletions docs/Gemfile
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source 'https://rubygems.org'

gem "jekyll", "~> 4.3.3" # installed by `gem jekyll`
# gem "webrick" # required when using Ruby >= 3 and Jekyll <= 4.2.2

gem "just-the-docs", "0.9.0" # pinned to the current release
# gem "just-the-docs" # always download the latest release
93 changes: 93 additions & 0 deletions docs/Gemfile.lock
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GEM
remote: https://rubygems.org/
specs:
addressable (2.8.7)
public_suffix (>= 2.0.2, < 7.0)
bigdecimal (3.1.8)
colorator (1.1.0)
concurrent-ruby (1.3.4)
em-websocket (0.5.3)
eventmachine (>= 0.12.9)
http_parser.rb (~> 0)
eventmachine (1.2.7)
ffi (1.17.0-arm64-darwin)
ffi (1.17.0-x86_64-linux-gnu)
forwardable-extended (2.6.0)
google-protobuf (4.27.3-arm64-darwin)
bigdecimal
rake (>= 13)
google-protobuf (4.27.3-x86_64-linux)
bigdecimal
rake (>= 13)
http_parser.rb (0.8.0)
i18n (1.14.5)
concurrent-ruby (~> 1.0)
jekyll (4.3.3)
addressable (~> 2.4)
colorator (~> 1.0)
em-websocket (~> 0.5)
i18n (~> 1.0)
jekyll-sass-converter (>= 2.0, < 4.0)
jekyll-watch (~> 2.0)
kramdown (~> 2.3, >= 2.3.1)
kramdown-parser-gfm (~> 1.0)
liquid (~> 4.0)
mercenary (>= 0.3.6, < 0.5)
pathutil (~> 0.9)
rouge (>= 3.0, < 5.0)
safe_yaml (~> 1.0)
terminal-table (>= 1.8, < 4.0)
webrick (~> 1.7)
jekyll-include-cache (0.2.1)
jekyll (>= 3.7, < 5.0)
jekyll-sass-converter (3.0.0)
sass-embedded (~> 1.54)
jekyll-seo-tag (2.8.0)
jekyll (>= 3.8, < 5.0)
jekyll-watch (2.2.1)
listen (~> 3.0)
just-the-docs (0.9.0)
jekyll (>= 3.8.5)
jekyll-include-cache
jekyll-seo-tag (>= 2.0)
rake (>= 12.3.1)
kramdown (2.4.0)
rexml
kramdown-parser-gfm (1.1.0)
kramdown (~> 2.0)
liquid (4.0.4)
listen (3.9.0)
rb-fsevent (~> 0.10, >= 0.10.3)
rb-inotify (~> 0.9, >= 0.9.10)
mercenary (0.4.0)
pathutil (0.16.2)
forwardable-extended (~> 2.6)
public_suffix (6.0.1)
rake (13.2.1)
rb-fsevent (0.11.2)
rb-inotify (0.11.1)
ffi (~> 1.0)
rexml (3.3.5)
strscan
rouge (4.3.0)
safe_yaml (1.0.5)
sass-embedded (1.77.8-arm64-darwin)
google-protobuf (~> 4.26)
sass-embedded (1.77.8-x86_64-linux-gnu)
google-protobuf (~> 4.26)
strscan (3.1.0)
terminal-table (3.0.2)
unicode-display_width (>= 1.1.1, < 3)
unicode-display_width (2.5.0)
webrick (1.8.1)

PLATFORMS
arm64-darwin
x86_64-linux-gnu

DEPENDENCIES
jekyll (~> 4.3.3)
just-the-docs (= 0.9.0)

BUNDLED WITH
2.5.9
11 changes: 11 additions & 0 deletions docs/_config.yml
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title: pg-boss Docs
description: pg-boss Documentation
theme: just-the-docs

url: https://timgit.github.io/pg-boss

color_scheme: dark

aux_links:
GitHub: https://github.com/timgit/pg-boss

87 changes: 87 additions & 0 deletions docs/index.md
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# pg-boss Docs

Queueing jobs in Postgres from Node.js like a boss.

[![npm version](https://badge.fury.io/js/pg-boss.svg)](https://badge.fury.io/js/pg-boss)
[![Build](https://github.com/timgit/pg-boss/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/timgit/pg-boss/actions/workflows/ci.yml)
[![Coverage Status](https://coveralls.io/repos/github/timgit/pg-boss/badge.svg?branch=master)](https://coveralls.io/github/timgit/pg-boss?branch=master)

```js
async function readme() {
const PgBoss = require('pg-boss');
const boss = new PgBoss('postgres://user:pass@host/database');

boss.on('error', console.error)

await boss.start()

const queue = 'readme-queue'

await boss.createQueue(queue)

const id = await boss.send(queue, { arg1: 'read me' })

console.log(`created job ${id} in queue ${queue}`)

await boss.work(queue, async ([ job ]) => {
console.log(`received job ${job.id} with data ${JSON.stringify(job.data)}`)
})
}

readme()
.catch(err => {
console.log(err)
process.exit(1)
})
```

pg-boss is a job queue built in Node.js on top of PostgreSQL in order to provide background processing and reliable asynchronous execution to Node.js applications.

pg-boss relies on [SKIP LOCKED](https://www.2ndquadrant.com/en/blog/what-is-select-skip-locked-for-in-postgresql-9-5/), a feature built specifically for message queues to resolve record locking challenges inherent with relational databases. This provides exactly-once delivery and the safety of guaranteed atomic commits to asynchronous job processing.

This will likely cater the most to teams already familiar with the simplicity of relational database semantics and operations (SQL, querying, and backups). It will be especially useful to those already relying on PostgreSQL that want to limit how many systems are required to monitor and support in their architecture.


## Summary
* Exactly-once job delivery
* Create jobs within your existing database transaction
* Backpressure-compatible polling workers
* Cron scheduling
* Queue storage policies to support a variety of rate limiting, debouncing, and concurrency use cases
* Priority queues, dead letter queues, job deferral, automatic retries with exponential backoff
* Pub/sub API for fan-out queue relationships
* Raw SQL support for non-Node.js runtimes via INSERT or COPY
* Serverless function compatible
* Multi-master compatible (for example, in a Kubernetes ReplicaSet)

## Requirements
* Node 20 or higher
* PostgreSQL 13 or higher

## Installation

```bash
# npm
npm install pg-boss

# yarn
yarn add pg-boss
```

## Documentation
* [Docs](docs/readme.md)

## Contributing
To setup a development environment for this library:

```bash
git clone https://github.com/timgit/pg-boss.git
npm install
```

To run the test suite, linter and code coverage:
```bash
npm run cover
```

The test suite will try and create a new database named pgboss. The [config.json](test/config.json) file has the default credentials to connect to postgres.
2 changes: 2 additions & 0 deletions docs/readme.md
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Expand Up @@ -1039,3 +1039,5 @@ Utility function to see if pg-boss is installed in the configured database.
## `schemaVersion()`
Utility function to get the database schema version.

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