How to consume an API in a grails application

Question

I have a service running on this url: http://localhost:8888

I get results from this service by invoking it like this:

http://localhost:8888/colors?colorname=red&shade=dark

and I get the results back in JSON like this:

 {
      "request#": 55,
      "colorname": "red",
      "shade": "dark",
      "available": "No"
 }

Question

What are some ways by which I can consume this service in my grails application?

Answer 1

Assuming all the configuration are there for rest client builder, you would end up with 2 lines of code consuming the service as:

//controller/service/POGO
def resp = rest.get("http://localhost:8888/colors?colorname=red&shade=dark")
resp.json //would give the response JSON

where

//resources.groovy
beans = {
    rest(grails.plugins.rest.client.RestBuilder)
}