inline fun Buffer.appendJson(pretty: Boolean = false, block: Json.() -> Any): Buffer
Appends the specified json {@code block} to the end of this Buffer. The buffer will expand as necessary to accommodate any bytes written.
pretty - wether or not to pretty format the json output
block - the json producing block to write
Receiver
a Vert.x Buffer
Return
a reference to this, so the API can be used fluently