`class Message`

The grpc-message header represents the gRPC status message.

The grpc-message header contains a human-readable error message, URL-encoded according to RFC 3986. This header is optional and typically only present when there's an error (non-zero status code). This header can appear both as an initial header (for trailers-only responses) and as a trailer.

Definitions

`def initialize(value)`

Initialize the message header with the given value.

Signature

parameter　value　String: The message value (will be URL-encoded if not already encoded).

Implementation

def initialize(value)
	super(value.to_s)
end

`def decode`

Decode the URL-encoded message.

Signature

returns　String: The decoded message.

Implementation

def decode
	URI.decode_www_form_component(self)
end

`def self.encode(message)`

Encode the message for use in headers.

Signature

parameter　message　String: The message to encode.
returns　String: The URL-encoded message.

Implementation

def self.encode(message)
	URI.encode_www_form_component(message).gsub("+", "%20")
end

`def <<(value)`

Merge another message value (takes the new value, as message should only appear once)

Signature

parameter　value　String: The new message value

Implementation

def <<(value)
	replace(value.to_s)
	self
end

`def self.trailer?`

Whether this header is acceptable in HTTP trailers. The grpc-message header can appear in trailers as per the gRPC specification.

Signature

returns　Boolean: true, as grpc-message can appear in trailers.

Implementation

def self.trailer?
	true
end