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matrix-authentication-service/docs/reference/cli/templates.md
2025-10-30 16:33:50 +00:00

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# `templates`
Global options:
- `--config <config>`: Path to the configuration file.
- `--help`: Print help.
## `templates check`
Check the validity of the templates loaded by the config.
It compiles the templates and then renders them with different contexts.
```console
$ mas-cli templates check
INFO mas_core::templates: Loading templates from filesystem path=./templates/**/*.{html,txt}
INFO mas_core::templates::check: Rendering template name="login.html" context={"csrf_token":"fake_csrf_token","form":{"fields_errors":{},"form_errors":[],"has_errors":false}}
INFO mas_core::templates::check: Rendering template name="register.html" context={"__UNUSED":null,"csrf_token":"fake_csrf_token"}
INFO mas_core::templates::check: Rendering template name="index.html" context={"csrf_token":"fake_csrf_token","current_session":{"active":true,"created_at":"2021-09-24T13:26:52.962135085Z","id":1,"last_authd_at":"2021-09-24T13:26:52.962135316Z","user_id":2,"username":"john"},"discovery_url":"https://example.com/.well-known/openid-configuration"}
...
```
Options:
- `--out-dir <directory>`: Render templates and emit them to the specified directory, which must either not exist or be empty.
- `--stabilise`: Remove sources of nondeterminism from template inputs, so that renders are reproducible. Only useful with `--out-dir`.
What is checked:
- the Jinja templates are syntactically valid
- the templates can render with a few sample values, with the branding from the MAS configuration
- undefined variables (`{{ undefined_variable }}`) will raise errors
- all translation keys exist
What is not checked:
- the validity of the generated HTML (you can forget closing tags, or otherwise create invalid HTML output)
- all translation keys exist *in your intended language(s)* (so some translation keys may fall back to English)