Add `bootstrap` options to `posthog.reset()`

[gustavopch]

trafficstars

I want to set my own anonymous ID instead of using the one generated by PostHog. I can do that when initializing. Great. But if the user logs out, I have to call posthog.reset() and then the next anonymous ID assigned will be the one generated by PostHog instead of the one I want.

I suggest posthog.reset() is adjusted to the following signature so I can pass the new anonymous ID:

reset(
  reset_device_id_or_options?:
    | boolean // <- For backwards compatibility
    | {
        resetDeviceID?: boolean
        bootstrap?: {
          distinctID?: string
          isIdentifiedID?: boolean
          featureFlags?: Record<string, boolean | string>
          featureFlagPayloads?: Record<string, JsonType>
        }
      }
): void

I'd call it like:

posthog.reset({
  bootstrap: {
    distinctID: myAnonymousID,
    isIdentifiedID: false
  }
})

Currently, the workaround that I can see is to reload the whole page when the user logs out so that posthog.init is called again and my anonymous ID is passed via its bootstrap option.

[glassworks-projects]

+1