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jsr.io

the jsr logo

This is the source code for https://jsr.io, the new JavaScript registry.

Important

The rest of this README is only relevant to those interested in contributing to the jsr.io registry. If you are looking for information on how to use the registry, please see https://jsr.io/docs.

Project Information

Goals

  • Robust
  • Low maintenance
  • Cheap
  • Open source

Implementation details

  • Modules and package metadata are stored on Google Cloud Storage (GCS)
  • npm compatibility tarballs are stored on Google Cloud Storage (GCS)
  • Management API is implemented in Rust and runs on Google Cloud Run
  • Frontend uses Fresh and is running on Google Cloud Run in 6 regions
  • https://jsr.io, https://api.jsr.io, and https://npm.jsr.io are served by a Google Cloud Load Balancer
    • Google Cloud CDN is used for caching
    • Module, package metadata, and npm tarballs is served directly from GCS
    • /api requests are proxied to the management API
    • All other requests are proxied to the frontend
  • Data is stored in PostgreSQL (using Google Cloud SQL)
    • The database is highly available
    • Not used for serving registry requests
  • Distributed tracing using Google Cloud Trace (and Jaeger in development)

Getting started (frontend only)

If you are just interested in making changes to the frontend, you can run the frontend in a development mode that connects to the production API.

Prerequisites

  • Clone this repo
  • Install Deno (https://deno.land/#installation)
  • Add the following to your /etc/hosts 
    127.0.0.1       jsr.test
127.0.0.1       api.jsr.test
127.0.0.1       npm.jsr.test

Running jsr

  1. deno task prod:frontend

You can view the registry at http://jsr.test. This frontend is connected to the production API - use it with the same care that you would use the live registry.

Getting started (entire stack)

In this mode, you will run the frontend and the API locally. This is useful for making changes to the API.

Prerequisites

  • Clone this repo

  • Install Deno (https://deno.land/#installation)

  • Install Rust (https://rustup.rs/)

  • Add the following to your /etc/hosts

    127.0.0.1       jsr.test
127.0.0.1       api.jsr.test
127.0.0.1       npm.jsr.test

  • Set up api/.env file:

    • For @denoland employees: Download the .env file from 1Password (it's named jsr local .env), and set up DATABASE_URL to point to your local Postgres database.
    • For everyone else:
      1. Create a GitHub App (https://github.com/settings/apps/new)
        • Callback URL: "http://jsr.test/login/callback"
        • Check "Request user authorization (OAuth) during installation"
        • Disable "Webhook"
        • Set "Account permissions" > "Email addresses" to "Read-only"
      2. Copy api/.env.example to api/.env
      3. Set GITHUB_CLIENT_ID and GITHUB_CLIENT_SECRET to the values from the GitHub App you created in step 1.
      4. Set DATABASE_URL to point to your local Postgres database.

  • Install sqlx by running cargo install sqlx-cli

macOS

  • Postgres installed and running: brew install postgresql
  • Postgres database created with createdb registry
  • Postgres user created and granted access to the database
  • Run cd api
  • Run cargo sqlx migrate run
    • If you get the error role "postgres" does not exist, run createuser -s postgres.

Linux

  • docker & docker-compose installed and running
  • Run cd api
  • Run cargo sqlx migrate run
    • If you get the error role "postgres" does not exist, run createuser -s postgres.

Running jsr

  1. deno task services:macos or deno task services:linux in one terminal
  2. deno task dev:api in another terminal
  3. deno task dev:frontend in another terminal

You can view the registry at http://jsr.test. The API can be found at http://api.jsr.test.

Publishing a package to the local dev environment

  1. Create a new directory with a deno.json
  2. cd into that directory
  3. Run JSR_URL=http://jsr.test deno publish

Populating local dev environment with additional data

It may be helpful to have a large variety of packages published to your local dev environment to simulate a live environment. The quickest way to fill the registry with data is to publish deno_std to the registry. This can be done via the following steps:

  1. Clone https://github.com/denoland/deno_std in the same parent folder as the jsr project
  2. Run JSR_URL=http://jsr.test deno publish to publish all of the @std packages to your local dev environment.

Making yourself a staff user/admin

  1. Run psql registry
  2. Run SELECT name,github_id from users;
  3. You should see a table with your name and GitHub ID. Copy your GitHub ID.
  4. Run UPDATE users SET is_staff = true WHERE github_id = xxxxxxx;, replacing xxxxxxx with your copied GitHub ID from the previous step.
  5. You should see a success message confirming one row has been updated.

Migrating the database

When the database schema has been changed, you can migrate the local database by running this command:

cd api; sqlx migrate run

Loading bad words

To load bad words into the database:

  1. Download https://cloud.google.com/sql/docs/postgres/sql-proxy
  2. Run in a terminal cloud-sql-proxy -g [database connection string] -p 5433
  3. Create a bad_words.sql file, with the contents as:
INSERT INTO bad_words (word) VALUES
    ('word_1'),
    -- more words
    ('word_2');
  1. In a separate terminal window run psql postgres://127.0.0.1:5433/registry --user [your username] -f bad_words.sql, and provide the password for the provided username.

Other

During local dev, traces are sent to Jaeger. You can view them at http://localhost:16686. You can find traces in API HTTP requests by inspecting the x-deno-ray header.