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@kszongic/wait-port-cli

v1.0.0

Published

Wait for a TCP port to become available — useful for CI/CD, Docker, and startup scripts

Vulnerabilities

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  • 0Medium
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Links

Git

Maintainers

kszongickszongic

Keywords

waitporttcpclihealthcheckdockerci

Readme

@kszongic/wait-port-cli

npm version License: MIT

Wait for a TCP port to become available. Zero dependencies. Perfect for CI/CD pipelines, Docker compose scripts, and startup orchestration.

Install

npm install -g @kszongic/wait-port-cli

Usage

# Wait for port 3000 on localhost
wait-port 3000

# Wait for a remote host
wait-port localhost:5432

# Custom timeout (60 seconds)
wait-port 127.0.0.1:6379 -t 60000

# Custom retry interval and quiet mode
wait-port db:3306 -i 1000 -q

Options

| Option | Description | Default | |---|---|---| | -t, --timeout <ms> | Timeout in milliseconds | 30000 | | -i, --interval <ms> | Retry interval in milliseconds | 500 | | -q, --quiet | Suppress output | false | | -h, --help | Show help | |

Exit Codes

  • 0 — Port is available
  • 1 — Timeout or error

Use Cases

Docker Compose — wait for database before starting app:

wait-port db:5432 && npm start

CI/CD — wait for dev server:

npm run dev &
wait-port 3000 -t 15000 && npm test

License

MIT © 2026 kszongic