Node.js sample application for wercker built with express
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.gitignore Correct name of repo in readme Oct 2, 2017 Writing Apr 28, 2018 Sorted cities array Oct 5, 2017
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package.json Updated for OOW Oct 2, 2017
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wercker status

A sample application in Javascript on NodeJS for Wercker.

This application uses the node container obtained from the Docker Hub


Clone this repo and cd into the directory:

git clone
cd getting-started-nodejs


You can run the sample app in a couple of different ways. The first is to simply launch the executable:

node app.js

Now point your browser at http://localhost:8080 to see:

{"cities":["Amsterdam","Berlin","New York","San Francisco","Tokyo"]}

The second, and more useful, way is to use the wercker dev command to launch the binary within a Docker container, using the base image defined in the box/id property at the top of the wercker.yml, like so:

wercker dev --expose-ports

The dev target inside wercker.yml uses the internal/watch step to dynamically reload the runtime container when sourcefile changes are detected, which allows you to quickly test changes without having to kill/rebuild/relaunch the container. For instance, add another city to the array on `app.js:3' like so:

var cities = {"cities":["Amsterdam","Berlin","New York","San Francisco","Tokyo","London"]}

and then refresh your browser pointing to http://localhost:8080 to see:

{"cities":["Amsterdam","Berlin","New York","San Francisco","Tokyo","London"]}}

Sign up for Wercker:

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