# Struct actix_settings::BasicSettings

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    pub struct BasicSettings<A> {
        pub actix: ActixSettings,
        pub application: A,
    }

Expand description

Wrapper for server and application-specific settings.

## Fields§

§`actix: ActixSettings`

Actix Web server settings.

§`application: A`

Application-specific settings.

## Implementations§

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### impl<A> BasicSettings<A>
where A: DeserializeOwned,

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#### pub fn parse_toml<P>(filepath: P) -> Result<Self, Error>
where P: AsRef<Path>,

Parse an instance of `Self` from a TOML file located at `filepath`.

If the file doesn’t exist, it is generated from the default TOML template, after which the newly generated file is read in and parsed.

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#### pub fn from_default_template() -> Self

Parse an instance of `Self` straight from the default TOML template.

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#### pub fn from_template(template: &str) -> Result<Self, Error>

Parse an instance of `Self` straight from the default TOML template.

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#### pub fn write_toml_file<P>(filepath: P) -> Result<(), Error>
where P: AsRef<Path>,

Writes the default TOML template to a new file, located at `filepath`.

##### §Errors

Returns a `FileExists` error if a file already exists at that location.

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#### pub fn override_field<F, V>(field: &mut F, value: V) -> Result<(), Error>
where F: Parse, V: AsRef<str>,

Attempts to parse `value` and override the referenced `field`.

##### §Examples

    use actix_settings::{Settings, Mode};

    let mut settings = Settings::from_default_template();
    assert_eq!(settings.actix.mode, Mode::Development);

    Settings::override_field(&mut settings.actix.mode, "production")?;
    assert_eq!(settings.actix.mode, Mode::Production);

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#### pub fn override_field_with_env_var<F, N>( field: &mut F, var_name: N ) -> Result<(), Error>
where F: Parse, N: AsRef<str>,

Attempts to read an environment variable, parse it, and override the referenced `field`.

##### §Examples

    use actix_settings::{Settings, Mode};

    std::env::set_var("OVERRIDE__MODE", "production");

    let mut settings = Settings::from_default_template();
    assert_eq!(settings.actix.mode, Mode::Development);

    Settings::override_field_with_env_var(&mut settings.actix.mode, "OVERRIDE__MODE")?;
    assert_eq!(settings.actix.mode, Mode::Production);

## Trait Implementations§

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### impl<F, I, S, B, A> ApplySettings<BasicSettings<A>> for HttpServer<F, I, S, B>
where F: Fn() -> I + Send + Clone + 'static, I: IntoServiceFactory<S, Request>, S: ServiceFactory<Request, Config = AppConfig> + 'static, S::Error: Into<Error> + 'static, S::InitError: Debug, S::Response: Into<Response<B>> + 'static, S::Future: 'static, B: MessageBody + 'static, A: DeserializeOwned,

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#### fn apply_settings(self, settings: &BasicSettings<A>) -> Self

Apply some settings object value to `self`.
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### impl<A: Clone> Clone for BasicSettings<A>

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#### fn clone(&self) -> BasicSettings<A>

Returns a copy of the value. Read more
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#### fn clone_from(&mut self, source: &Self)

Performs copy-assignment from `source`. Read more
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### impl<A: Debug> Debug for BasicSettings<A>

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#### fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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### impl<'de, A> Deserialize<'de> for BasicSettings<A>
where A: Deserialize<'de>,

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#### fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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### impl<A: Hash> Hash for BasicSettings<A>

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#### fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given `Hasher`. Read more
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#### fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given `Hasher`. Read more
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### impl<A: PartialEq> PartialEq for BasicSettings<A>

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#### fn eq(&self, other: &BasicSettings<A>) -> bool

This method tests for `self` and `other` values to be equal, and is used by `==`.
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#### fn ne(&self, other: &Rhs) -> bool

This method tests for `!=`. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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### impl<A: Eq> Eq for BasicSettings<A>

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### impl<A> StructuralEq for BasicSettings<A>

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### impl<A> StructuralPartialEq for BasicSettings<A>

## Auto Trait Implementations§

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### impl<A> RefUnwindSafe for BasicSettings<A>
where A: RefUnwindSafe,

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### impl<A> Send for BasicSettings<A>
where A: Send,

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### impl<A> Sync for BasicSettings<A>
where A: Sync,

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### impl<A> Unpin for BasicSettings<A>
where A: Unpin,

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### impl<A> UnwindSafe for BasicSettings<A>
where A: UnwindSafe,

## Blanket Implementations§

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### impl<T> Any for T
where T: 'static + ?Sized,

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#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more
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### impl<T> Borrow<T> for T
where T: ?Sized,

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#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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### impl<T> BorrowMut<T> for T
where T: ?Sized,

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#### fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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### impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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#### fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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### impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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#### fn equivalent(&self, key: &K) -> bool

Compare self to `key` and return `true` if they are equal.
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### impl<T> From<T> for T

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#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T> Instrument for T

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#### fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [`Span`], returning an `Instrumented` wrapper. Read more
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#### fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current `Span`, returning an `Instrumented` wrapper. Read more
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### impl<T, U> Into<U> for T
where U: From<T>,

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#### fn into(self) -> U

Calls `U::from(self)`.

That is, this conversion is whatever the implementation of `From<T> for U` chooses to do.

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### impl<T> Same for T

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#### type Output = T

Should always be `Self`
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### impl<T> ToOwned for T
where T: Clone,

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#### type Owned = T

The resulting type after obtaining ownership.
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#### fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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#### fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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### impl<T, U> TryFrom<U> for T
where U: Into<T>,

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#### type Error = Infallible

The type returned in the event of a conversion error.
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#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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### impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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#### type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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### impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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#### fn vzip(self) -> V

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### impl<T> WithSubscriber for T

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#### fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided `Subscriber` to this type, returning a [`WithDispatch`] wrapper. Read more
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#### fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default `Subscriber` to this type, returning a [`WithDispatch`] wrapper. Read more
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### impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,