Serializer Stream Operations Non-trivial algorithms need to do more than send entire messages at once, such as: * Send the header first, and the body later. * Send a message incrementally: bounded work in each I/O cycle. * Use a series of caller-provided buffers to represent the body. These tasks may be performed by using the serializer stream interfaces. To use these interfaces, first construct an appropriate serializer from the message to be sent: Serializer Name Description __serializer__ /// Provides buffer oriented HTTP message serialization functionality.\ntemplate<\nbool isRequest,\nclass Body,\nclass Fields = fields\n>\nclass serializer; [link beast.ref.boost__beast__http__request_serializer `request_serializer`] /// A serializer for HTTP/1 requests\ntemplate<\nclass Body,\nclass Fields = fields\n>\nusing request_serializer = serializer<true, Body, Fields>; [link beast.ref.boost__beast__http__response_serializer `response_serializer`] /// A serializer for HTTP/1 responses\ntemplate<\nclass Body,\nclass Fields = fields\n>\nusing response_serializer = serializer<false, Body, Fields>; The choices for template types must match the message passed on construction. This code creates an HTTP response and the corresponding serializer: The stream operations which work on serializers are: Serializer Stream Operations Name Description [link beast.ref.boost__beast__http__write.overload1 [*write]] Send everything in a __serializer__ to a __SyncWriteStream__. [link beast.ref.boost__beast__http__async_write.overload1 [*async_write]] Send everything in a __serializer__ asynchronously to an __AsyncWriteStream__. [link beast.ref.boost__beast__http__write_header.overload1 [*write_header]] Send only the header from a __serializer__ to a __SyncWriteStream__. [link beast.ref.boost__beast__http__async_write_header [*async_write_header]] Send only the header from a __serializer__ asynchronously to an __AsyncWriteStream__. [link beast.ref.boost__beast__http__write_some.overload1 [*write_some]] Send part of a __serializer__ to a __SyncWriteStream__. [link beast.ref.boost__beast__http__async_write_some [*async_write_some]] Send part of a __serializer__ asynchronously to an __AsyncWriteStream__. Here is an example of using a serializer to send a message on a stream synchronously. This performs the same operation as calling `write(stream, m)`: