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59 lines
2 KiB
Text
59 lines
2 KiB
Text
---
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title: settings
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sidebarTitle: settings
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---
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# `fastmcp.settings`
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## Classes
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### `ExtendedEnvSettingsSource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/settings.py#L26"><Icon icon="github" size="14" /></a></sup>
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A special EnvSettingsSource that allows for multiple env var prefixes to be used.
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Raises a deprecation warning if the old `FASTMCP_SERVER_` prefix is used.
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**Methods:**
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#### `get_field_value` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/settings.py#L33"><Icon icon="github" size="14" /></a></sup>
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```python
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get_field_value(self, field: FieldInfo, field_name: str) -> tuple[Any, str, bool]
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```
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### `ExtendedSettingsConfigDict` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/settings.py#L53"><Icon icon="github" size="14" /></a></sup>
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### `Settings` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/settings.py#L57"><Icon icon="github" size="14" /></a></sup>
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FastMCP settings.
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**Methods:**
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#### `settings_customise_sources` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/settings.py#L69"><Icon icon="github" size="14" /></a></sup>
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```python
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settings_customise_sources(cls, settings_cls: type[BaseSettings], init_settings: PydanticBaseSettingsSource, env_settings: PydanticBaseSettingsSource, dotenv_settings: PydanticBaseSettingsSource, file_secret_settings: PydanticBaseSettingsSource) -> tuple[PydanticBaseSettingsSource, ...]
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```
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#### `settings` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/settings.py#L87"><Icon icon="github" size="14" /></a></sup>
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```python
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settings(self) -> Self
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```
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This property is for backwards compatibility with FastMCP < 2.8.0,
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which accessed fastmcp.settings.settings
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#### `setup_logging` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/settings.py#L182"><Icon icon="github" size="14" /></a></sup>
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```python
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setup_logging(self) -> Self
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```
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Finalize the settings.
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