node-proxy-latency-tester

Node Poxy Latency Tester

This command line tool helps you to create a proxy that adds adds a latency between two services. This is useful for testing purposes and simulations.

Installation

via npm:

npm install node-proxy-latency-tester

Usage

$ node-proxy-latency-tester -h

Usage:
  node-proxy-latency-tester [OPTIONS] [ARGS]

Options:
  -t, --target [NUMBER]  target port (service port) (Default is 8080)
  -f, --forward [NUMBER] forward port (new port through proxy) (Default is 7070)
  -l, --latency [NUMBER] latency in ms (Default is 0)
  -h, --help             Display help and usage details

Let's say that you have a service running on localhost:8080 and you can add a latency of 300 ms without changing the service. You can easily accomplish this with:

np -t 8080 -f 8081 -l 300

Now you can use your service on port 8081 with a latency of 300 ms. You can also use np for short.