ComposableArchitecture Reference Publisher Extension Reference

Publisher

extension Publisher

eraseToEffect()
Turns any publisher into an Effect.

This can be useful for when you perform a chain of publisher transformations in a reducer, and you need to convert that publisher to an effect so that you can return it from the reducer:
```
case .buttonTapped:
  return fetchUser(id: 1)
    .filter(\.isAdmin)
    .eraseToEffect()
```
Declaration
Swift

public func eraseToEffect() -> Effect<Output, Failure>
Return Value

An effect that wraps self.
catchToEffect()
Turns any publisher into an Effect that cannot fail by wrapping its output and failure in a result.

This can be useful when you are working with a failing API but want to deliver its data to an action that handles both success and failure.
```
case .buttonTapped:
  return fetchUser(id: 1)
    .catchToEffect()
    .map(ProfileAction.userResponse)
```
Declaration
Swift

public func catchToEffect() -> Effect<Result<Output, Failure>, Never>
Return Value

An effect that wraps self.