Wire Poll App

Wire app for the polls. Based on Wire Applications JVM SDK, which offers full support for MLS.
Previous Poll Bot implementation was based on Roman therefore did not employ E2EE directly, and worked with Proteus protocol only.

Commands

Basic usage

• /poll "Question" "Option 1" "Option 2" will create poll
• /poll help to show help
• /poll version prints the current version of the poll app

Technologies used

• HTTP Server for Prometheus - Ktor
• Dependency Injection - Kodein
• Build system - Gradle
• Communication with Wire Applications JVM SDK

Usage

• The app needs Postgres database up & running - we use one in docker-compose.yml, to start it up, you can use command make db.
• To run the application execute make run or ./gradlew run.
• To run the application inside the docker compose environment run make up.

For more details see Makefile.

Docker Images

Poll app has public docker image.

quay.io/wire/poll-bot

Tag latest is the latest release. Releases have then images with corresponding tag, so you can always roll back. Tag staging is build from the latest commit in staging branch.

App configuration

Configuration is currently being loaded from the environment variables.

    /**
     * Username for the database.
     */
    const val DB_USER = "DB_USER"

    /**
     * Password for the database.
     */
    const val DB_PASSWORD = "DB_PASSWORD"

    /**
     * URL for the database.
     *
     * Example:
     * `jdbc:postgresql://localhost:5432/app-database`
     */
    const val DB_URL = "DB_URL"

Via the system variables - see complete list.

Docker Compose

To run app inside docker compose environment with default PostgreSQL database, please create .env file in the root directory with the following variables:

# database
POSTGRES_USER=
POSTGRES_PASSWORD=
POSTGRES_DB=

# application
DB_USER=
DB_PASSWORD=
DB_URL=

Such configuration can look for example like that:

# database
POSTGRES_USER=wire-poll-app
POSTGRES_PASSWORD=super-secret-wire-pwd
POSTGRES_DB=poll-app

# application
DB_USER=wire-poll-app
DB_PASSWORD=super-secret-wire-pwd
DB_URL=jdbc:postgresql://db:5432/poll-app