Installation v0.19 or older

important

For v0.20 or later versions, click here.

To set up H2O Wave, simply download and extract a release (~10MB). The release ships with a precompiled binary executable, so no explicit installation step is necessary.

Prerequisites

H2O Wave runs on Linux, macOS, and Windows, having Python 3.6+ for v0.20.0 and 3.7+ onwards.

Setup

Step 1: Download

Download the H2O Wave SDK for your platform from Github or here:

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Step 2: Extract

Extract your download.

tar -xzf wave-x.y.z-linux-amd64.tar.gz

Step 3: Move

Move it to a convenient location, say $HOME/wave/.

 mv wave-x.y.z-linux-amd64 $HOME/wave

note

If you have a previous version of Wave installed, be sure to remove it before installing another. To remove it, simply delete the previous directory.

Inspect your $HOME/wave directory. You should see the following content:

.├── examples/       ... Examples├── test/           ... Browser testing framework├── www/            ... Wave server web root (do not modify!)└── waved           ... Wave server executable

Step 4: Run

Go to your Wave directory.

cd $HOME/wave

Start the Wave server.

./waved

2020/10/27 16:16:34 # 2020/10/27 16:16:34 # ┌─────────────────────────┐2020/10/27 16:16:34 # │  ┌    ┌ ┌──┐ ┌  ┌ ┌──┐  │ H2O Wave2020/10/27 16:16:34 # │  │ ┌──┘ │──│ │  │ └┐    │ (version) (build)2020/10/27 16:16:34 # │  └─┘    ┘  ┘ └──┘  └─┘  │ © 2020 H2O.ai, Inc.2020/10/27 16:16:34 # └─────────────────────────┘2020/10/27 16:16:34 # 2020/10/27 16:16:34 # {"address":":10101","t":"listen","webroot":"/home/elp/wave/www"}

info

On Windows, run waved.exe to start the server.

Step 5: Verify

Finally, point your web browser to http://localhost:10101/. You should see an empty page with a blinker that looks like this:

Congratulations! Wave is now running, but doesn't have any content yet (hence the spinner).

In the next few sections, we'll add some content and see what the fuss is all about.

Run the tour

Your Wave release download ships with over 200 examples.

You can play around with these examples in your browser using tour.py, a Python script (itself a Wave app) located in examples/:

Contents of $HOME/wave

wave/├── examples/       <-- Examples live here.|   └── tour.py     <-- The Wave Tour.├── test/           ├── www/            └── waved

To run the tour, as with any Wave app, we need to start both the Wave server (waved) and the tour (tour.py). Let's go ahead and do that.

Step 1: Start the Wave server

To start the Wave server, simply open a new terminal window and execute waved (or waved.exe on Windows).

cd $HOME/wave./waved

2020/10/27 16:16:34 # 2020/10/27 16:16:34 # ┌─────────────────────────┐2020/10/27 16:16:34 # │  ┌    ┌ ┌──┐ ┌  ┌ ┌──┐  │ H2O Wave2020/10/27 16:16:34 # │  │ ┌──┘ │──│ │  │ └┐    │ (version) (build)2020/10/27 16:16:34 # │  └─┘    ┘  ┘ └──┘  └─┘  │ © 2020 H2O.ai, Inc.2020/10/27 16:16:34 # └─────────────────────────┘2020/10/27 16:16:34 # 2020/10/27 16:16:34 # {"address":":10101","t":"listen","webroot":"/home/elp/wave/www"}

The Wave server should now be running at http://localhost:10101.

Don't close this terminal window!

To run any Wave app, you need the Wave server up and running at all times. Your web browser communicates with the Wave server, and the Wave server in turn communicates with the Wave app.

Step 2: Run the tour

First, create a virtual environment, install the tour's dependencies.

important

Do this from a new terminal window!

cd $HOME/wavepython3 -m venv venvsource venv/bin/activatepip install -r examples/requirements.txt

On Windows:

cd $HOME\wavepython3 -m venv venvvenv\Scripts\activate.batpip install -r examples\requirements.txt

Finally, run the tour:

wave run --no-reload examples.tour

Step 3: Enjoy the tour

Go to http://localhost:10101/tour to access the tour.

tour.py is an ordinary Wave app that runs other apps. The tour itself runs at the route /tour, and each of the examples runs at /demo.

tip

To play with the tour's active example in isolation, simply open a new browser tab and head to http://localhost:10101/demo.

Wrapping up

In this section, we started the Wave server and then launched tour.py to experience the tour. In general, this is how you'd typically launch any app, including your own. There is nothing special about tour.py. In fact, to run any example, all you need to do is repeat the steps above in a new terminal window. For example, to run todo.py, simply run:

wave run examples.todo

You can now access the example at http://localhost:10101/demo. Simple!