trait Metadata extends AnyRef

Immutable representation of the metadata in a call

Not for user extension

Annotations
@DoNotInherit() @ApiMayChange()
Source
Metadata.scala
Linear Supertypes
AnyRef, Any
Known Subclasses
JavaMetadataImpl, MetadataStatus
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Inherited
  1. Metadata
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Visibility
  1. Public
  2. Protected

Abstract Value Members

  1. abstract def asList(): List[Pair[String, MetadataEntry]]

    returns

    A list of (key, entry) pairs. Pairs with the same key will be ordered based on when they were added or received.

  2. abstract def asMap(): Map[String, List[MetadataEntry]]

    returns

    A map from keys to a list of metadata entries. Entries with the same key will be ordered based on when they were added or received.

  3. abstract def asScala: scaladsl.Metadata

    returns

    Returns the scaladsl.Metadata interface for this instance.

  4. abstract def getAttribute[T](key: AttributeKey[T]): Optional[T]

    Get an attribute from the underlying akka-http message associated with this metadata.

    Get an attribute from the underlying akka-http message associated with this metadata.

    Will return None if this metadata is not associated with an akka-http request or response, for example, if using the netty client support.

  5. abstract def getBinary(key: String): Optional[ByteString]

    returns

    The binary header value for key if one exists, if the same key has multiple values the last occurrence that is a text key is used.

  6. abstract def getText(key: String): Optional[String]

    returns

    The text header value for key if one exists, if the same key has multiple values the last occurrence that is a text key is used.