Unable to use CURL within GROOVY script for a REST PUT call

Question

I am trying to do a simple PUT request using CURL. Simple it is on a terminal but not able to get it working within my Groovy script.

Here is a snippet of it :-

class Test {
  //Throws 415 Cannot Consume Content Type    
  void testPUT () {
  println "curl -i -X PUT -H \"Content-Type: application/json\" -d '{\"Key1\":1, \"Key2\":\"Value2\"}' http://<hostname>/foo/".execute().text
 }

  // Works Perfectly Fine
  void testGET () {
  println "curl -i -X GET -H \"Content-Type: application/json\" http://<hostname>/foo".execute().text
 }
}

I also tried to enclose the command using triple quotes like:-

 """curl -i -X PUT -H "Content-Type:application/json" -d '{"Key1":1,"Key2":"Value2"}' http://<hostname>/foo""".execute().text

All my attempts just gives 415 Content Type Cannot be Consumed

When I simply use the curl command on a terminal window, both PUT and GET methods work fine.

Am I missing something? Any help would be appreciated!

Thank You!

Answer 1

Try using the list variation of the string and see if that works:

println ["curl", "-i", "-X PUT", "-H 'Content-Type:application/json'", "-d '{\"Key1\":1, \"Key2\":\"Value2\"}'", "http://<hostname>/foo/"].execute().text

I was having a similar problem and this was the only way I could find to solve it. Groovy will split the string into arguments at each space and I suspect this was tripping up Curl and the -H argument pair. By putting the string into the list variant, it keeps each item together as an argument.

Answer 2

Building on Bruce's answer, you will also need to tokenize "-X PUT". Tested out on groovy 2.3.6. ["curl", "-H", "Content-Type: application/json", "-H", "Accept: application/json", "-X", "PUT", "-d", data, uri].execute()

Answer 3

This works in my terminal

groovy -e "println 'curl -i -H \'Content-Type:application/json\' -XPUT -d \'{\"test\":4}\' http://google.fr/'.execute().text"

If it does not work for you, then this is likely not a groovy problem.

Answer 4

Thanks xynthy for the list variation hint, I was still seeing the dreaded "Content type 'application/x-www-form-urlencoded' not supported" with your example, but breaking up the -H and the content type strings worked.

This is confirmed working in groovy 1.8:

["curl",  "-H", "Content-Type: application/json", "-H", "Accept: application/json", "-X PUT", "-d", data, uri].execute().text