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Radiator 🔥

Radiator is the 100% open source podcast hosting project for the next century of the internet.

Build Status


We are still in an exploration phase. Technically the foundation for hosting a podcast with a valid RSS feed is there but it's very simplistic and missing features left and right. Using this in production is not recommended yet as breaking changes will occur without prior notice.

Built With

  • Phoenix Framework — the backend API (currently both GraphQL and REST endpoints) and (currently) admin interface
  • PostgreSQL — main data store
  • Minio — private cloud storage for audio and image files
  • Vue.js — JavaScript framework


Docker Deployment

If you just want to take a look at the project, you can deploy a ready-to-run stack with docker-compose:

git clone
cd radiator/docker-compose
docker-compose up

Then access the following services:

Service URL
Radiator http://localhost:4000
Minio http://localhost:9000
MailHog http://localhost:8025
GraphiQL http://localhost:4000/api/graphiql

For full deployment and options please see radiator-deploy

This compose file stores its persistent data in docker volumes, so to cleanly reset you need to delete them after a docker-compose down with docker volume rm rad_minio_config rad_minio_data rad_psql_db

Minio Setup

  • Install minio
  • Install minio client
  • start minio and take note of the AccessKey and SecretKey in the startup notice (for example manually minio server ./data)
  • configure minio client:
mc config host add radiator <AccessKey> <SecretKey>
  • setup minio:
mc mb radiator/radiator
mc mb radiator/radiator-test
mc policy set public radiator/radiator

Phoenix Setup

git clone
cd radiator

# start postgres

# set minio access keys in config/config.exs
#   config :ex_aws,
#     access_key_id: "<AccessKey>",
#     secret_access_key: "<SecretKey>",
#     json_codec: Jason

mix deps.get
mix ecto.create
mix ecto.migrate
cd assets && npm install
cd ..
mix phx.server

Seed database with data for development (unless you did mix ecto.reset, it runs seeds automatically):

mix run priv/repo/seeds.exs


  • "ACME" network
  • user "admin" with password "password"

Download UserAgent database for tracking:

mix --force

⚠️ Migrations during development ⚠️

During the early stages of development we edit existing migrations to keep them readable instead of adding new ones as you would expect in a live system.

So whenever you pull an update that changed a migration, you need to:

mix ecto.reset
env MIX_ENV=test mix ecto.reset


At the moment both GraphQL and REST endpoints are available. The aim is to provide a full GraphQL api as primary target and some basic REST endpoints for quick usecases.


Entrypoint: /api/graphql

Open http://localhost:4000/api/graphiql for schema and documentation exploration.

For calls that need authentication, make sure to put the token gotten from a

mutation {
		username_or_email: "admin",
		         password: "password" ) {

request into the Authorization: Bearer <token> header.


⚠️ The REST API has not been updated in a long time and is probably out of order. For now, use GraphQL if you can.

Follows HAL+json specification.

Entrypoint: /api/rest/v1

Some endpoints:

  • /api/rest/v1/podcasts
  • /api/rest/v1/podcasts/:podcast_id
  • /api/rest/v1/podcasts/:podcast_id/episodes
  • /api/rest/v1/podcasts/:podcast_id/episodes/:episode_id
  • /api/rest/v1/files

Admin Interface

At http://localhost:4000/admin/podcasts you will find a simple admin interface to manage podcasts and episodes. There is no concept of users yet, so there is no registration, login or any kind of authentication.


Edit Podcast


Radiator is MIT Licensed.