We recommend using reflex deploy, but if this does not fit your use case then you can also host your apps yourself.
Clone your code to a server and install the requirements.
Edit your rxconfig.py file and set api_url to the publicly accessible IP
address or hostname of your server, with the port :8000 at the end. Setting
this correctly is essential for the frontend to interact with the backend state.
For example if your server is at app.example.com, your config would look like this:
It is also possible to set the environment variable API_URL at run time or
export time to retain the default for local development.
Then run your app in production mode:
Production mode creates an optimized build of your app. By default, the static
frontend of the app (HTML, Javascript, CSS) will be exposed on port 3000 and
the backend (event handlers) will be listening on port 8000.
Exporting a static build of the frontend allows the app to be served using a
static hosting provider, like Netlify or Github Pages. Be sure api_url is set
to an accessible backend URL when the frontend is exported.
This will create a frontend.zip file with your app's minified HTML,
Javascript, and CSS build that can be uploaded to your static hosting service.
It also creates a backend.zip file with your app's backend python code to
upload to your server and run.
You can export only the frontend or backend by passing in the --frontend-only
or --backend-only flags.
It is also possible to export the components without zipping. To do
this, use the --no-zip parameter. This provides the frontend in the
.web/build/client/ directory and the backend can be found in the root directory of
the project.
Another option is to run your Reflex service in a container. For this
purpose, a Dockerfile and additional documentation is available in the Reflex
project in the directory docker-example.
For the build of the container image it is necessary to edit the rxconfig.py
and the add the requirements.txt
to your project folder. The following changes are necessary in rxconfig.py:
Notice that the api_url should be set to the externally accessible hostname or
IP, as the client browser must be able to connect to it directly to establish
interactivity.
You can find the requirements.txt in the docker-example folder of the
project too.
The project structure should looks like this:
After all changes have been made, the container image can now be created as follows.
Finally, you can start your Reflex container service as follows.