Updating channel metacounter is the same as creating channel metacounter. Values of existing keys will be updated and values of new keys will be added.
std::map<std::wstring, int64_t> metaCounters;
metaCounters[L"key1"] = 3; // Update 1 to 3
metaCounters[L"key2"] = 4; // Update 2 to 4
metaCounters[L"key3"] = 0; // Add a new key-value item.
channel->UpdateMetaCounters(metaCounters, [](const std::map<std::wstring, int64_t>& metaCounters, SBDError* error) {
if (error != nullptr) {
// Handle error.
return;
}
});