Stack detection
Deployxa reads your repository and picks the runtime, build and start commands. Override any of them in project settings.
Deploy FastAPI on Deployxa.
Deploy async FastAPI services with pip or Poetry builds, Uvicorn, managed PostgreSQL and HTTPS.
- 01Detected fromrequirements.txt · pyproject.toml
- 02RuntimeUvicorn (ASGI)
- 03Build commandpip install -r requirements.txt
- 04Start commanduvicorn main:app --host 0.0.0.0 --port 8000
- 05HTTPSLet's Encrypt
01 / Quickstart
Deploy from your terminal.
Install the CLI and deploy the FastAPI project in your current directory, or connect the repository in the console for push-to-deploy.
- Typical database: PostgreSQL or Redis
- Build and start commands can be overridden
- Secrets stay out of build logs
$ npm install -g @deployxa/cli$ deployxa login$ deployxa deploy
02 / Guide
How FastAPI goes to production.
- 01 /
Install
Dependencies from requirements.txt or pyproject.toml install in an isolated build.
- 02 /
Start
Uvicorn serves the ASGI app on the configured port.
- 03 /
Go live
Interactive /docs is reachable over HTTPS as soon as the release passes its health check.
03 / Configuration
Environment variables.
Set these in project settings. Values are never written to build logs.
| Variable | Purpose | Example |
|---|---|---|
DATABASE_URL | PostgreSQL connection URL | postgresql://... |
04 / Included
What every deploy gets.
Isolated builds
Every push builds in its own sandbox with cached dependencies and layers.
Managed databases
Attach PostgreSQL, MySQL or Redis and the connection details are injected as environment variables.
HTTPS by default
Every deploy gets a deployxa.online URL with a Let's Encrypt certificate; custom domains too.
Health-checked releases
Traffic only switches to a release that passes its health check, and earlier releases stay available for rollback.
Push to deploy
Connect GitHub, GitLab or Bitbucket and each push to your branch ships a new release.
05 / FAQ
FastAPI questions.
How do I run Alembic migrations?
Run alembic upgrade head as part of the release so the schema is ready before traffic switches.