Controls the maximum request body size. If this is a number, then the value specifies the number of bytes; if it is a string, the value is passed to the bytes library for parsing. Defaults to '100kb'.
When set to true, will only accept arrays and objects;
when false will accept anything JSON.parse accepts. Defaults to true.
The type option is used to determine what media type the middleware will parse
The reviver option is passed directly to JSON.parse as the second argument.
The verify option, if supplied, is called as verify(req, res, buf, encoding), where buf is a Buffer of the raw request body and encoding is the encoding of the request.
When set to true, then deflated (compressed) bodies will be inflated; when false, deflated bodies are rejected. Defaults to true.