URLEncodedFormEncoder

public final class URLEncodedFormEncoder

An object that encodes instances into URL-encoded query strings.

ArrayEncoding can be used to configure how Array values are encoded. By default, the .brackets encoding is used, encoding array values with brackets for each value. e.g array[]=1&array[]=2.

BoolEncoding can be used to configure how Bool values are encoded. By default, the .numeric encoding is used, encoding true as 1 and false as 0.

DataEncoding can be used to configure how Data values are encoded. By default, the .deferredToData encoding is used, which encodes Data values using their default Encodable implementation.

DateEncoding can be used to configure how Date values are encoded. By default, the .deferredToDate encoding is used, which encodes Dates using their default Encodable implementation.

KeyEncoding can be used to configure how keys are encoded. By default, the .useDefaultKeys encoding is used, which encodes the keys directly from the Encodable implementation.

KeyPathEncoding can be used to configure how paths within nested objects are encoded. By default, the .brackets encoding is used, which encodes each sub-key in brackets. e.g. parent[child][grandchild]=value.

NilEncoding can be used to configure how nil Optional values are encoded. By default, the .dropKey encoding is used, which drops nil key / value pairs from the output entirely.

SpaceEncoding can be used to configure how spaces are encoded. By default, the .percentEscaped encoding is used, replacing spaces with %20.

This type is largely based on Vapor’s url-encoded-form project.

ArrayEncoding
Encoding to use for Array values.
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Declaration
Swift

public enum ArrayEncoding
BoolEncoding
Encoding to use for Bool values.
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Declaration
Swift

public enum BoolEncoding
DataEncoding
Encoding to use for Data values.
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Declaration
Swift

public enum DataEncoding
DateEncoding
Encoding to use for Date values.
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Declaration
Swift

public enum DateEncoding
KeyEncoding
Encoding to use for keys.

This type is derived from JSONEncoder‘s KeyEncodingStrategy and XMLEncoders KeyEncodingStrategy.
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Declaration
Swift

public enum KeyEncoding
KeyPathEncoding
Encoding to use for nested object and Encodable value key paths.
```
["parent" : ["child" : ["grandchild": "value"]]]
```
This encoding affects how the parent, child, grandchild path is encoded. Brackets are used by default. e.g. parent[child][grandchild]=value.
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Declaration
Swift

public struct KeyPathEncoding
NilEncoding
Encoding to use for nil values.
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Declaration
Swift

public struct NilEncoding
SpaceEncoding
Encoding to use for spaces.
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Declaration
Swift

public enum SpaceEncoding
Error
URLEncodedFormEncoder error.
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Declaration
Swift

public enum Error : Swift.Error
alphabetizeKeyValuePairs
Whether or not to sort the encoded key value pairs.

Note
This setting ensures a consistent ordering for all encodings of the same parameters. When set to false, encoded Dictionary values may have a different encoded order each time they’re encoded due to Dictionary‘s random storage order, but Encodable types will maintain their encoded order.
Declaration
Swift

public let alphabetizeKeyValuePairs: Bool
arrayEncoding
The ArrayEncoding to use.
Declaration
Swift

public let arrayEncoding: ArrayEncoding
boolEncoding
The BoolEncoding to use.
Declaration
Swift

public let boolEncoding: BoolEncoding
dataEncoding
THe DataEncoding to use.
Declaration
Swift

public let dataEncoding: DataEncoding
dateEncoding
The DateEncoding to use.
Declaration
Swift

public let dateEncoding: DateEncoding
keyEncoding
The KeyEncoding to use.
Declaration
Swift

public let keyEncoding: KeyEncoding
keyPathEncoding
The KeyPathEncoding to use.
Declaration
Swift

public let keyPathEncoding: KeyPathEncoding
nilEncoding
The NilEncoding to use.
Declaration
Swift

public let nilEncoding: NilEncoding
spaceEncoding
The SpaceEncoding to use.
Declaration
Swift

public let spaceEncoding: SpaceEncoding
allowedCharacters
The CharacterSet of allowed (non-escaped) characters.
Declaration
Swift

public var allowedCharacters: CharacterSet


                    
                    
                    init(alphabetizeKeyValuePairs:arrayEncoding:boolEncoding:dataEncoding:dateEncoding:keyEncoding:keyPathEncoding:nilEncoding:spaceEncoding:allowedCharacters:)

Creates an instance from the supplied parameters.

Declaration

Swift

public init(alphabetizeKeyValuePairs: Bool = true,
            arrayEncoding: ArrayEncoding = .brackets,
            boolEncoding: BoolEncoding = .numeric,
            dataEncoding: DataEncoding = .base64,
            dateEncoding: DateEncoding = .deferredToDate,
            keyEncoding: KeyEncoding = .useDefaultKeys,
            keyPathEncoding: KeyPathEncoding = .brackets,
            nilEncoding: NilEncoding = .dropKey,
            spaceEncoding: SpaceEncoding = .percentEscaped,
            allowedCharacters: CharacterSet = .afURLQueryAllowed)

Parameters

`alphabetizeKeyValuePairs`	Whether or not to sort the encoded key value pairs. `true` by default.
`arrayEncoding`	The `ArrayEncoding` to use. `.brackets` by default.
`boolEncoding`	The `BoolEncoding` to use. `.numeric` by default.
`dataEncoding`	The `DataEncoding` to use. `.base64` by default.
`dateEncoding`	The `DateEncoding` to use. `.deferredToDate` by default.
`keyEncoding`	The `KeyEncoding` to use. `.useDefaultKeys` by default.
`nilEncoding`	The `NilEncoding` to use. `.drop` by default.
`spaceEncoding`	The `SpaceEncoding` to use. `.percentEscaped` by default.
`allowedCharacters`	The `CharacterSet` of allowed (non-escaped) characters. `.afURLQueryAllowed` by default.


                    
                    
                    encode(_:)

Encodes the value as a URL form encoded String.

Throws

An Error or EncodingError instance if encoding fails.

Declaration

Swift

public func encode(_ value: Encodable) throws -> String

Parameters


                                value

The Encodable value.

Return Value

The encoded String.


                    
                    
                    encode(_:)

Encodes the value as Data. This is performed by first creating an encoded String and then returning the .utf8 data.

Throws

An Error or EncodingError instance if encoding fails.

Declaration

Swift

public func encode(_ value: Encodable) throws -> Data

Parameters


                                value

The Encodable value.

Return Value

The encoded Data.