Agora RTC Objective-C API Reference Refactor

Data Fields
IMetadataObserver::Metadata Struct Reference

## Data Fields
unsigned int | uid
unsigned int | size
unsigned char * | buffer
long long | timeStampMs

## Detailed Description

Metadata.

## Field Documentation

## ◆ uid

unsigned int uid

The User ID that sent the metadata.

- For the receiver: The user ID of the user who sent the `metadata`.
- For the sender: Ignore this value.

## ◆ size

unsigned int size

The buffer size of the sent or received `metadata`.

## ◆ buffer

unsigned char* buffer

The buffer address of the sent or received `metadata`.

## ◆ timeStampMs

long long timeStampMs

The timestamp (ms) of the `metadata`.