If you’ve ever worked at a company that uses a corporate proxy you may have run into this little issue. Some command line tools such as CURL or Grails make calls out to the internet to do their jobs, and some corporate proxies just get in the way. Grails has a way of handling this, however, and you can setup a proxy so that Grails commands execute successfully.

$ grails add-proxy client --host=1.2.3.4 --port=80 --username=myUser --password=passwordgrails set-proxy client

In the above example I am setting up a proxy configuration with a name of client. I then tell Grails to use that named proxy by using the set-proxy command. There is a catch, however, if you are stuck in Windows. In my Windows 7 64-bit machine environment I ran into a problem where the proxy didn’t seem to setup correctly. To remedy this browse to your user folder and open up the .grails/ProxySettings.groovy file. In there you will see your named proxy, client in my case, and you will notice that all the values are wrong. Correct those values by making them strings and save the changes. Note that by strings I mean they must have quotes around the values (after the equal sign).

Then try your Grails commands again and you should be golden! Happy coding!