⌂Akka HTTP
10.0.0
  • Java Documentation
    • Akka HTTP
      • Introduction
      • Configuration
      • HTTP Model
      • Common Abstractions (Client- and Server-Side)
      • Implications of the streaming nature of Request/Response Entities
      • Low-Level Server-Side API
      • High-level Server-Side API
      • Server-Side WebSocket Support
      • Consuming HTTP-based Services (Client-Side)
      • Server-Side HTTPS Support
      • Migration Guides (Java)
  • Scala Documentation
    • Akka HTTP
      • Introduction
      • Configuration
      • HTTP Model
      • Common Abstractions (Client- and Server-Side)
      • Implications of the streaming nature of Request/Response Entities
      • Low-Level Server-Side API
      • High-level Server-Side API
      • Server-Side WebSocket Support
      • Consuming HTTP-based Services (Client-Side)
      • Server-Side HTTPS Support
      • Handling blocking operations in Akka HTTP
      • Migration Guides
  • Security announcements
Akka HTTP
⌂Akka HTTP
10.0.0
  • Java Documentation
    • Akka HTTP
      • Introduction
      • Configuration
      • HTTP Model
      • Common Abstractions (Client- and Server-Side)
      • Implications of the streaming nature of Request/Response Entities
      • Low-Level Server-Side API
      • High-level Server-Side API
      • Server-Side WebSocket Support
      • Consuming HTTP-based Services (Client-Side)
      • Server-Side HTTPS Support
      • Migration Guides (Java)
  • Scala Documentation
    • Akka HTTP
      • Introduction
      • Configuration
      • HTTP Model
      • Common Abstractions (Client- and Server-Side)
      • Implications of the streaming nature of Request/Response Entities
      • Low-Level Server-Side API
      • High-level Server-Side API
      • Server-Side WebSocket Support
      • Consuming HTTP-based Services (Client-Side)
      • Server-Side HTTPS Support
      • Handling blocking operations in Akka HTTP
      • Migration Guides
  • Security announcements
  • Akka HTTP
  • Scala Documentation
  • Akka HTTP
  • High-level Server-Side API
  • Directives
  • Predefined Directives (by trait)
  • HostDirectives
  • extractHost

extractHost

Signature

def extractHost: Directive1[String]

Description

Extract the hostname part of the Host request header and expose it as a String extraction to its inner route.

Example

val route =
  extractHost { hn =>
    complete(s"Hostname: $hn")
  }

// tests:
Get() ~> Host("company.com", 9090) ~> route ~> check {
  status shouldEqual OK
  responseAs[String] shouldEqual "Hostname: company.com"
}

Next: host

On this page:
  • extractHost
    • Signature
    • Description
    • Example