from backend.main import app
```
-### `fastapi dev` with path { #fastapi-dev-with-path }
+### `fastapi dev` with path or with `--entrypoint` CLI option { #fastapi-dev-with-path-or-with-entrypoint-cli-option }
You can also pass the file path to the `fastapi dev` command, and it will guess the FastAPI app object to use:
$ fastapi dev main.py
```
-But you would have to remember to pass the correct path every time you call the `fastapi` command.
+Or, you can also pass the `--entrypoint` option to the `fastapi dev` command:
+
+```console
+$ fastapi dev --entrypoint main:app
+```
+
+But you would have to remember to pass the correct path\entrypoint every time you call the `fastapi` command.
Additionally, other tools might not be able to find it, for example the [VS Code Extension](editor-support.md) or [FastAPI Cloud](https://fastapicloud.com), so it is recommended to use the `entrypoint` in `pyproject.toml`.
from backend.main import app
```
-### `fastapi dev` with path { #fastapi-dev-with-path }
+### `fastapi dev` with path or with `--entrypoint` CLI option { #fastapi-dev-with-path-or-with-entrypoint-cli-option }
You can also pass the file path to the `fastapi dev` command, and it will guess the FastAPI app object to use:
$ fastapi dev main.py
```
-But you would have to remember to pass the correct path every time you call the `fastapi` command.
+Or, you can also pass the `--entrypoint` option to the `fastapi dev` command:
+
+```console
+$ fastapi dev --entrypoint main:app
+```
+
+But you would have to remember to pass the correct path\entrypoint every time you call the `fastapi` command.
Additionally, other tools might not be able to find it, for example the [VS Code Extension](../editor-support.md) or [FastAPI Cloud](https://fastapicloud.com), so it is recommended to use the `entrypoint` in `pyproject.toml`.