[Home](./index.md) > [@snowplow/node-tracker](./node-tracker.md) > [EmitterConfigurationBase](./node-tracker.emitterconfigurationbase.md) > [maxPostBytes](./node-tracker.emitterconfigurationbase.maxpostbytes.md) ## EmitterConfigurationBase.maxPostBytes property The max size a POST request can be before the tracker will force send it Also dictates the max size of a POST request before a batch of events is split into multiple requests Signature: ```typescript maxPostBytes?: number; ```