RestConfigService

A very simple REST service (written in Go) to read and write the contents of a config file.

Features

• On HTTP GET
  • Responding the text read from a config file.
• On HTTP POST
  • Write the submitted text to a config file
  • and call a given command (e.g. to restart another service).

Compile and run

Execute in the root directory of this project

$ go build

$ ./restconfigservice --help
Usage of ./restconfigservice:
  -config string
    	the name of the config file to read/write (default "config.txt")
  -port uint
    	the port of the local HTTP REST service (default 3000)
  -postset string
    	the command to execute after writing the config or empty string if nothing to execute (default "./postSetConfig.sh")

$ ./restconfigservice
launching REST service
    listening to: http://localhost:3000/api/v1/config
    reading/writing from/to: config.txt
    executing after SET: ./postSetConfig.sh

Interaction with the REST service

Interact with the running service by sending HTTP GET/POST requests with

• curl

  # GET the current config
  curl "http://localhost:3000/api/v1/config"
  
  # or POST (write) the config
  curl --data "192.168.1.1:8080" "http://localhost:3000/api/v1/config"
  

• Postman, an easy to use UI to interact with REST APIs for macOS, Windows and Linux