whistle.try

Provide fallback functionality for local rules of whistle

Installation

npm install -g whistle.try

Usage

Add try:// in front of your local rules:

- example.com https://localhost:8000
+ example.com try://https://localhost:8000

The rule will automatically change to a transparent proxy when the corresponding local service is not started.

For automatic protocols, you can use any of the following forms:

example.com try:////localhost:8000
# or
example.com try://localhost:8000

When using interpolation, you may need to adjust the position of the interpolation:

- example.com https://`localhost:8000${path}`
+ example.com try://`https://localhost:8000${path}`

How it works

This plugin will check the service status through HEAD requests before proxying real requests. Therefore, it only works for HTTP/HTTPS requests.

Avoid using this plugin rule for non-local proxies as it may introduce a large overhead.