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# nng_msg_len
## NAME
nng_msg_len --- return message body length
## SYNOPSIS
```c
#include <nng/nng.h>
size_t nng_msg_len(nng_msg *msg);
```
## DESCRIPTION
The `nng_msg_len()` returns the length of the body of [message][msg] _msg_.
## RETURN VALUES
Length of message body.
## SEE ALSO
[nng_msg_alloc](nng_msg_alloc),
[nng_msg_body](nng_msg_body)
{{#include ../refs.md}}
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