URL Fetch extension
WEBCALL allow to send asynchronously a request to a distance webservice, but it ignores the answer. URLFETCH is designed to send request synchronously. It blocks until you get an answer from the server.
You need to be authenticated with a valid token with the function AUTHENTICATE before using URLFETCH.
URLFETCH do GET request on the URL input.
This extension add the following functions to WarpScript:
URLFETCH always add the following headers:
User-Agent: Java/1.8.0_171
Host: localhost:9001
Accept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2
Connection: keep-alive
Configuration
Your custom configurations can be stored in a new etc/conf.d/99-myWarp10.conf file. Your custom configurations will override all the predefined Warp 10 configuration.
// URLFETCH, MAXURLFETCHCOUNT, MAXURLFETCHSIZE
warpscript.extension.urlfetch = io.warp10.script.ext.urlfetch.UrlFetchWarpScriptExtension
// Maximum number of URLFETCH calls, 64 by default for soft and hard
warpscript.urlfetch.limit = 10
warpscript.urlfetch.limit.hard = 1000
// Maximum downloaded bytes by URLFETCH, 1000000 by default for soft and hard
warpscript.urlfetch.maxsize = 1000000
warpscript.urlfetch.maxsize.hard = 1000000000
// List of patterns to include/exclude for hosts, works the same way as webcall.host.patterns.
// Defaults to the value of webcall.host.patterns.
warpscript.urlfetch.host.patterns = .*
Example
This WarpScript will try to fetch your public IP on different services.