# [−][src]Struct actix_web::dev::FormConfig

    pub struct FormConfig<S> { /* fields omitted */ }

Form extractor configuration

    #[macro_use] extern crate serde_derive;
    use actix_web::{http, App, Form, Result};

    #[derive(Deserialize)]
    struct FormData {
        username: String,
    }

    /// extract form data using serde.
    /// custom configuration is used for this handler, max payload size is 4k
    fn index(form: Form<FormData>) -> Result<String> {
        Ok(format!("Welcome {}!", form.username))
    }

    fn main() {
        let app = App::new().resource(
            "/index.html",
            |r| {
                r.method(http::Method::GET)
                    // register form handler and change form extractor configuration
                    .with_config(index, |cfg| {cfg.0.limit(4096);})
            },
        );
    }

## Methods

###

`impl<S> FormConfig<S>`

[src]

####

`pub fn limit(&mut self, limit: usize) -> &mut Self`

[src]

Change max size of payload. By default max size is 256Kb

####

`pub fn error_handler<F>(&mut self, f: F) -> &mut Self where F: Fn(UrlencodedError, &HttpRequest<S>) -> Error + 'static,`

[src]

Set custom error handler

## Trait Implementations

###

`impl<S> Default for FormConfig<S>`

[src]

####

`fn default() -> Self`

[src]

Returns the "default value" for a type. Read more

## Auto Trait Implementations

###

`impl<S> !Send for FormConfig<S>`

###

`impl<S> !Sync for FormConfig<S>`

## Blanket Implementations

###

`impl<T> From for T`

[src]

####

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

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Performs the conversion.

###

`impl<T, U> Into for T where U: From<T>,`

[src]

####

`fn into(self) -> U`

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Performs the conversion.

###

`impl<T, U> TryFrom for T where T: From<U>,`

[src]

#### `type Error = !`

🔬 This is a nightly-only experimental API. (`try_from`)

The type returned in the event of a conversion error.

####

`fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`

[src]

🔬 This is a nightly-only experimental API. (`try_from`)

Performs the conversion.

###

`impl<T> Borrow for T where T: ?Sized,`

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####

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

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Immutably borrows from an owned value. Read more

###

`impl<T> BorrowMut for T where T: ?Sized,`

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####

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

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Mutably borrows from an owned value. Read more

###

`impl<T, U> TryInto for T where U: TryFrom<T>,`

[src]

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

🔬 This is a nightly-only experimental API. (`try_from`)

The type returned in the event of a conversion error.

####

`fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`

[src]

🔬 This is a nightly-only experimental API. (`try_from`)

Performs the conversion.

###

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

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####

`fn get_type_id(&self) -> TypeId`

[src]

🔬 This is a nightly-only experimental API. (`get_type_id`)

this method will likely be replaced by an associated static

Gets the `TypeId` of `self`. Read more

###

`impl<T> Erased for T`

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