From 61a3538733072b470e6ad1e010a74efc2e6b7e70 Mon Sep 17 00:00:00 2001 From: Tim Jones Date: Thu, 5 Sep 2024 17:20:55 -0500 Subject: [PATCH] just the docs, round 1 --- .github/workflows/pages.yml | 70 ++++++++++++++++++++++++++++ docs/.gitignore | 15 ++++++ docs/Gemfile | 7 +++ docs/Gemfile.lock | 93 +++++++++++++++++++++++++++++++++++++ docs/_config.yml | 11 +++++ docs/index.md | 87 ++++++++++++++++++++++++++++++++++ 6 files changed, 283 insertions(+) create mode 100644 .github/workflows/pages.yml create mode 100644 docs/.gitignore create mode 100644 docs/Gemfile create mode 100644 docs/Gemfile.lock create mode 100644 docs/_config.yml create mode 100644 docs/index.md diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml new file mode 100644 index 0000000..3bca633 --- /dev/null +++ b/.github/workflows/pages.yml @@ -0,0 +1,70 @@ +# 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"] + path: + - "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 diff --git a/docs/.gitignore b/docs/.gitignore new file mode 100644 index 0000000..f9f1d49 --- /dev/null +++ b/docs/.gitignore @@ -0,0 +1,15 @@ +# 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/ diff --git a/docs/Gemfile b/docs/Gemfile new file mode 100644 index 0000000..e9a4ae6 --- /dev/null +++ b/docs/Gemfile @@ -0,0 +1,7 @@ +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 diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock new file mode 100644 index 0000000..0c50444 --- /dev/null +++ b/docs/Gemfile.lock @@ -0,0 +1,93 @@ +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 diff --git a/docs/_config.yml b/docs/_config.yml new file mode 100644 index 0000000..b3c4ae3 --- /dev/null +++ b/docs/_config.yml @@ -0,0 +1,11 @@ +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 + diff --git a/docs/index.md b/docs/index.md new file mode 100644 index 0000000..0640af2 --- /dev/null +++ b/docs/index.md @@ -0,0 +1,87 @@ +# 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.