slack

Slack Slash Command Example

Weather - A Slack Slash Command to access weather information.

• Try Live Version
• Deploy
• Run Offline

Try Live Version

We've a version deployed at https://weather.deno.dev for demo. You can use it to create the Slash Command in your Slack workspace.

Installation

Go to https://api.slack.com/apps?new_app and create an app. After successful app creation, click on "Slash Commands" section and fill out the details as shown below.

After filling the details click on "Save" button that might at bottom right of the page. That's it!

Usage

After the Slack App is setup with the Slash command, run the below command to get weather information of a place.

/weather [<city>]

Additionally, you can avoid passing the city argument to get weather information of a random city from the list.

Deploy

Follow the steps under OpenWeather section to obtain a OpenWeather API token and click on the button below to deploy the application.

OpenWeather

We use OpenWeather API to obtain weather information.

Here are the steps to obtain a token to communicate with the API:

1. Go to https://home.openweathermap.org/api_keys (Login or Sign Up if required)
2. Name the key under Create Key and click on Generate

That's it.

Run Offline

You can run the application on your local machine using deno.

OPEN_WEATHER_TOKEN=<token> deno run --allow-env --allow-net https://raw.githubusercontent.com/denoland/deploy_examples/main/slack/mod.ts

Grab a token at https://openweathermap.org and set the value for the variable.

To be able to use the local version on your Slack workspace, you need to use a tool like ngrok to tunnel Slack requests to the app running on your machine.

1. Run ngrok http 8000 (assuming that the application is running on port 8000)
2. Follow the steps under Installation section, but use the https URL output by ngrok for Request URL field.

That's it.