---
title: "mg_hexdump_connection()"
decl_name: "mg_hexdump_connection"
symbol_kind: "func"
signature: |
  void mg_hexdump_connection(struct mg_connection *nc, const char *path,
                             const void *buf, int num_bytes, int ev);
---

Generates human-readable hexdump of the data sent or received by connection.
`path` is a file name where hexdump should be written. `num_bytes` is
a number of bytes sent/received. `ev` is one of the `MG_*` events sent to
an event handler. This function is supposed to be called from the
event handler.