mongoose/docs/c-api/mg_coap.h/mg_coap_compose.md

title, decl_name, symbol_kind, signature

title	decl_name	symbol_kind	signature
mg_coap_compose()	mg_coap_compose	func	uint32_t mg_coap_compose(struct mg_coap_message *cm, struct mbuf *io);

Composes CoAP message from mg_coap_message structure. This is a helper function. Return value: see mg_coap_send_message()