[Home](./index.md) > [@snowplow/node-tracker](./node-tracker.md) > [FilterProvider](./node-tracker.filterprovider.md) ## FilterProvider type A filter provider is a tuple that has two parts: a context filter and the context primitive(s) If the context filter evaluates to true, the tracker will attach the context primitive(s) Signature: ```typescript type FilterProvider = [ ContextFilter, Array | ContextPrimitive ]; ```