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

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

Answer 5

First I installed the groovy post build plugin
https://wiki.jenkins-ci.org/display/JENKINS/Groovy+Postbuild+Plugin
Then I have included groovy post build plugin in my post build configuration of my jenkins job
and used the command
"curl --request POST http://172.16.100.101:1337/jenkins/build".execute().text
Here my endpoint is http:172.16.100.101:1337/jenkins/build