HostDirectives

All Known Subinterfaces:

Directives

All Known Implementing Classes:

Directives$, HostDirectives$, HttpApp
```
public interface HostDirectives
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Directive<scala.Tuple1<java.lang.String>>`	`extractHost()`	Extracts the hostname part of the Host request header value.
`Directive<scala.runtime.BoxedUnit>`	`host(scala.collection.immutable.Seq<java.lang.String> hostNames)`	Rejects all requests with a host name different from the given ones.
`Directive<scala.runtime.BoxedUnit>`	`host(scala.Function1<java.lang.String,java.lang.Object> predicate)`	Rejects all requests for whose host name the given predicate function returns false.
`Directive<scala.Tuple1<java.lang.String>>`	`host(scala.util.matching.Regex regex)`	Rejects all requests with a host name that doesn't have a prefix matching the given regular expression.

- Method Detail
  - extractHost
```
Directive<scala.Tuple1<java.lang.String>> extractHost()
```
    Extracts the hostname part of the Host request header value.
    
    Returns:
    
    (undocumented)
  - host
```
Directive<scala.runtime.BoxedUnit> host(scala.collection.immutable.Seq<java.lang.String> hostNames)
```
    Rejects all requests with a host name different from the given ones.
    
    Parameters:
    
    hostNames - (undocumented)
    
    Returns:
    
    (undocumented)
  - host
```
Directive<scala.runtime.BoxedUnit> host(scala.Function1<java.lang.String,java.lang.Object> predicate)
```
    Rejects all requests for whose host name the given predicate function returns false.
    
    Parameters:
    
    predicate - (undocumented)
    
    Returns:
    
    (undocumented)
  - host
```
Directive<scala.Tuple1<java.lang.String>> host(scala.util.matching.Regex regex)
```
    Rejects all requests with a host name that doesn't have a prefix matching the given regular expression. For all matching requests the prefix string matching the regex is extracted and passed to the inner route. If the regex contains a capturing group only the string matched by this group is extracted. If the regex contains more than one capturing group an IllegalArgumentException is thrown.
    
    Parameters:
    
    regex - (undocumented)
    
    Returns:
    
    (undocumented)