Install & authorize

The Slack CLI is a set of tools critical to building next generation Slack apps. This is your one-stop shop for those tools.

✨ If you've not used the Slack CLI before, we recommend following our quickstart guide instead. We'll still get your wagon loaded up before you depart for the trail, but we'll also give you some additional guidance.

Installing the Slack CLI

Run the automated installer from your terminal window:

curl -fsSL https://downloads.slack-edge.com/slack-cli/install.sh | bash

This will install the Slack CLI and all required dependencies, including Deno β€” the runtime environment for our next generation platform. If you have VSCode installed, the VSCode Deno extension will be installed.

Optional: Use an alias for the Slack CLI binary

The installation script will detect existing binaries named slack and bail if it finds one; it will not overwrite your existing slack binary.

If you want to install the CLI as anything other than slack, you can do so by passing the -s argument to the installer script:

curl -fsSL https://downloads.slack-edge.com/slack-cli/install.sh | bash -s <your-preferred-alias>

Run the automated installer from Windows PowerShell:

irm https://downloads.slack-edge.com/slack-cli/install-windows.ps1 | iex

This will install the Slack CLI and all required dependencies, including Deno β€” the runtime environment for our modular platform. If you have VSCode installed, the VSCode Deno extension will be installed.

1. Download and install Deno.

2. Verify that Deno is installed and in your path:

$ deno --version
deno 1.25.* (release, x86_64-apple-darwin)
v8 10.*
typescript 4.*

3. Download and install Git, a dependency of the slack CLI.

4. Download the slack CLI installer for your environment.

The slack CLI is currently at version v2.2.0. See the changelog for details.

Β  Download for macOS (.tar.gz)

Β  Download for Linux (.tar.gz)

Β  Download for Windows (.zip)

5. Add the slack CLI to your path.

Existing slack binary in path?

If you have another CLI tool in your path called slack, we recommend renaming our slack binary to a different name before adding it to your path.

  • Mac/Linux: Copy the CLI into any folder that is already in your pathβ€”such as /usr/local/binβ€”or add a new folder to your path by listing whatever folder you installed the CLI to in /etc/paths.

  • Windows: Copy the CLI into any folder that is already in your path, or add a new folder to your path by listing whatever folder you installed the CLI to in your Environment Variables. You may not have access to edit System variables, so you might need to add it to your account's User variables. You can open the Environment Variables dialog by pressing the Win+R keys to open the Run window, and entering the following command: rundll32.exe sysdm.cpl,EditEnvironmentVariables.

6. Verify that slack is installed and in your path:

$ slack version
Using slack v2.2.0

7. Verify that all dependencies have been installed:

$ slack doctor

8. Download the VSCode extension for Deno (recommended, but optional).

Authorizing the CLI

With the CLI installed, authorize the CLI in your workspace with the following command:

slack login

In your terminal window, you should see an authorization ticket in the form of a slash command, and a prompt to enter a challenge code:

$ slack login

πŸ“‹ Run the following slash command in any Slack channel or DM
   The command will open a prompt detailing the user permissions for you to approve

/slackauthticket ABC123defABC123defABC123defABC123defXYZ

? Enter challenge code 

Copy the slash command and paste it into any Slack conversation in the workspace you will be developing in.

When you send the message containing the slash command, a modal will pop up, prompting you to grant certain permissions to the CLI. Click the Confirm button in the modal to move to the next step.

A new modal with a challenge code will appear. Copy that challenge code, and paste it back into your terminal:

? Enter challenge code eXaMpLeCoDe

βœ… You've successfully authenticated! πŸŽ‰
   Authorization data was saved to /Users/awesome.dev/.slack/credentials.json

πŸ’‘ Run slack create my-app to create a new app, or slack help for details on available commands

Verify that your CLI is set up by running slack auth list in your terminal window:

$ slack auth list

myworkspace (Team ID: T123ABC456)
User ID: U123ABC456
Last updated: 2023-01-01 12:00:00 -07:00

You should see an entry for the workspace you just authorized. If you don't, get a new authorization ticket with slack login to try again.

You're now ready to begin building next generation Slack apps!

Slack SDK

Use the Slack CLI in tandem with our SDK to access our API, additional documentation, and code libraries. Click here to browse the source code on GitHub.

Version update notifications

Once a day, the CLI checks for updates after running any command. When an update is available, a notification will be displayed with a link where you can find and download the new version.

Update notifications can be disabled using a command-line flag or an environment variable. When running any command, you can append the --skip-update or -s flag. Alternatively, you can set the SLACK_SKIP_UPDATE environment variable and assign it any value.

Start creating

✨ To start creating an app, check out the create or remove an app page.


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