Skip to main content

addTrailers

method OutgoingMessage.prototype.addTrailers
Jump to headingOutgoingMessage.prototype.addTrailers(headers: OutgoingHttpHeaders | ReadonlyArray<[string, string]>): void

Adds HTTP trailers (headers but at the end of the message) to the message.

Trailers will only be emitted if the message is chunked encoded. If not, the trailers will be silently discarded.

HTTP requires the Trailer header to be sent to emit trailers, with a list of header field names in its value, e.g.

message.writeHead(200, { 'Content-Type': 'text/plain',
                         'Trailer': 'Content-MD5' });
message.write(fileData);
message.addTrailers({ 'Content-MD5': '7895bf4b8828b55ceaf47747b4bca667' });
message.end();

Attempting to set a header field name or value that contains invalid characters will result in a TypeError being thrown.

Parameters Jump to heading

Jump to headingheaders: OutgoingHttpHeaders | ReadonlyArray<[string, string]>

Return Type Jump to heading

void
Back to top