Push Local Changes

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In this step you’ll learn how to propagate a local change to the application through to Cloud Foundry. As a simple change, we’ll modify the message which the app shows.

Change the IndexHandler’s message in main.go to “I am awesome!”. Your final result should look something like this:

func IndexHandler(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "I am awesome!")
}

Now test locally:

$ go run main.go

Visiting your application at http://localhost:8080, you should see the changed message. You are awesome!

Now deploy. All you need to do is cf push again:

$ cf push my-go-app

Finally, check that everything is working by visiting your app’s URL from your web browser.