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Code snippet to make a HTTP call from a Groovy script
Abstract
This code snippet makes an HTTP call and processes the returned data.
Logic
Import the HTTPBuilder and the request methods.
Make an HTTP by creating a new HTTP instance.
Request the data passing the respective method, the content type, and the request configuration closure to the request method.
Return the parsed data from the response.
Snippet
import groovyx.net.http.HTTPBuilder
import static groovyx.net.http.Method.<methodName>
import static groovyx.net.http.ContentType.<contentType>
// initialize a new builder and give a default URL
def http = new HTTPBuilder("<URL>")
def data = http.request(<methodName>,<contentType>) { req ->
response.success = { resp, reader ->
assert resp.status == 200
return reader
}
// called only for a 404 (not found) status code:
response."404" = { resp ->
log.error ("Not found")
}
}
if (data) {
// process returned data
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Context
The outcome of the code snippet depends on the content type passed to the request method. You could use this code, for example, to get a specific currency conversion rate.
Example
To get the HTML text an issue view page, you can use this snippet to make the HTTP call, get the content and parse it.
import groovyx.net.http.HTTPBuilder
import static groovyx.net.http.Method.GET
import static groovyx.net.http.ContentType.TEXT
// initialize a new builder and give a default URL
def http = new HTTPBuilder("https://www.google.com/")
return http.request(GET,TEXT) { req ->
response.success = { resp, htmlText ->
assert resp.status == 200
log.debug("My response handler got response: ${resp.statusLine}")
if(htmlText){
return htmlText.getText()
}
else{
return null
}
}
// called only for a 404 (not found) status code:
response."404" = { resp ->
log.error ("Not found")
return null
}
}