Feeds notifier as a service

This is a simple RSS and Atom feed notifier. It fetches new articles from feed resources and notifies consumers like discord chat or graphql API subscribers.

flowchart LR
  subgraph go-feed-me
    direction TB
    subgraph job
        t("`Cron crawlers`")
    end
    subgraph storage
        st1("`SQLite`")
        st2("`Postgres`")
    end
    subgraph api
        direction TB
        api1("`/graphql`")
        api2("`/metrics`")
    end
  end
  subgraph consumers
    direction RL
    sub1("`Discord chat`")
    sub2("`Graphql subscribers`")
  end
  feed("`RSS or atom feeds`")  --> go-feed-me  --> consumers
  job --> storage --> api

Features

• GraphQL UI and API
• Storing data in database (sqlite, postgres)
• Adding new RSS feed resources and store them
• Fetch new articles from RSS feed resources
• Notify new articles to graphql subscribers, discord.
• Observability (logs, metrics, traces)
• Support more subscribers (slack, email, etc) or make it pluggable
• Support multiple users and roles
• Support filtering resources (maybe articles) by tags

Quick start

docker run -it --rm -p 8080:8080 -p 8081:8081 sealbro/go-feed-me:latest

Open http://localhost:8080/feed/graphql/ in your browser.

Environment variables

Name	Description	Default
SLUG	Path api prefix	feed
PUBLIC_ADDRESS	Public api address	:8080
PRIVATE_ADDRESS	Private metrics address	:8081
CRON	Cron pattern when run jobs	1/60 * * * * *
SQLITE_CONNECTION	Sqlite file location	/feed.db
POSTGRES_CONNECTION	Postgres connection string	empty
DISCORD_WEBHOOK_ID	Discord webhook id	empty
DISCORD_WEBHOOK_TOKEN	Discord webhook token	empty
LOG_LEVEL	slog level	INFO
OTEL_EXPORTER_OTLP_ENDPOINT	Otlp grpc endpoint	empty

• Postgres connection string: host=<ip or host> user=<username> password=<password> dbname=feed port=5432 sslmode=disable
• Discord how get id and token for webhook
• Cron pattern quartz

Graphql

Queries

query Articles {
    articles (after: "2023-01-01T15:04:05.999999999Z") {
        published,
        link,
        title,
        description,
        content
    }
}

query Resources {
    resources(active: true) {
        url
        title
        active
        created
        modified
        published
    }
}

Mutations

mutation AddResources {
    addResources (resources: [
        {url: "https://github.com/opencv/opencv/releases.atom", active: true},
        {url: "https://github.com/openvinotoolkit/openvino/releases.atom", active: true},
        {url: "https://github.com/hybridgroup/gocv/releases.atom", active: true},
    ]) 
}

mutation ActivateResources {
    activateResources ( 
        urls: ["https://github.com/opencv/opencv/releases.atom"],
        active: false
    ) 
}

mutation RemoveResources {
    removeResources ( 
        urls: ["https://github.com/opencv/opencv/releases.atom"]
    ) 
}

Subscriptions

subscription notifyNewData {
    articles {
        title
        description
        content
        link
    }
}

Contributing

Build

Build docker image locally:

docker build --build-arg GO_VERSION="$(grep '^go' go.mod | awk '{print $2}')" -t feed .

Run

Run local built docker image:

docker run -it --rm -p 8080:8080 -p 8081:8081 feed

Re-generate graphql schema

make generate