Slai - Slack CLI Messenger

Name: slai
Rating: 76
Author: IgorKravtsov

Send Slack messages from the command line. Configured globally, works from any directory.

Prerequisites

The slai CLI must be installed and configured:

bash

# Check if installed
slai --help

# If not installed, build from source
cd ~/user/Projects/slack-sender
./update.sh

Configuration

Slai uses global configuration stored at:

•macOS: ~/Library/Application Support/slai/config.toml
•Linux: ~/.config/slai/config.toml

Initial Setup

bash

# Initialize with token and default channel
slai init -t "xoxp-your-token" -c "#channel-or-user-id"

# Or initialize empty and set values later
slai init
slai config -t "xoxp-your-token"
slai config -c "#default-channel"

View/Update Config

bash

# Show current config (token is masked)
slai config --show

# Update token
slai config -t "xoxp-new-token"

# Update default channel
slai config -c "#new-channel"

Commands

Send a Message

bash

# Send to default channel
slai send -m "Hello world!"

# Send to specific channel (override default)
slai send -m "Alert!" -c "#alerts"

# Send DM to user (use user ID)
slai send -m "Hey!" -c "U01XXXXXXXX"

# Multi-line message
slai send -m "Line 1
Line 2
Line 3"

Channel Formats

Format	Example	Description
Channel name	`#general`	Public channel by name
Channel ID	`C01234567`	Channel by Slack ID
User ID	`U01234567`	DM to user

Finding IDs:

•Channel ID: Right-click channel → "View channel details" → ID at bottom
•User ID: Click profile → "⋮" → "Copy member ID"

Common Use Cases

Deployment Notification

bash

slai send -m "Deployed v1.2.3 to production"

Script Integration

bash

#!/bin/bash
set -e

./deploy.sh
slai send -m "✅ Deployment successful at $(date)"

Error Alerting

bash

if ! ./build.sh; then
    slai send -m "❌ Build failed!" -c "#alerts"
    exit 1
fi

Git Hook (post-push)

bash

#!/bin/bash
BRANCH=$(git rev-parse --abbrev-ref HEAD)
slai send -m "Pushed to $BRANCH"

Troubleshooting

Error	Solution
`No config found`	Run `slai init`
`No token configured`	Run `slai config -t "xoxp-..."`
`No channel specified`	Use `-c` flag or set default with `slai config -c "#channel"`
`channel_not_found`	Verify channel name/ID, ensure you're a member
`invalid_auth`	Token expired or revoked, get new token

Getting a Slack Token

•Go to https://api.slack.com/apps
•Create New App → From scratch
•OAuth & Permissions → Add chat:write to User Token Scopes
•Install to Workspace
•Copy User OAuth Token (starts with xoxp-)