Home > @uniformdev/context > TransitionDataStore
TransitionDataStore class
Signature:
Constructors
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Constructor
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Modifiers
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Description
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(constructor)({ initialData })
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Constructs a new instance of the TransitionDataStore class
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Properties
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Property
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Modifiers
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Type
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Description
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readonly
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Partial<VisitorData> | undefined
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readonly
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{ on: { <Key extends "dataUpdatedAsync">(type: Key, handler: mitt.Handler<TransitionDataStoreEvents>): void; }; }
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Subscribe to events from the transition storage
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readonly
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Partial<VisitorData> | undefined
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Methods
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Method
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Modifiers
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Description
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Deletes a visitor's stored data, forgetting them.
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When we load on the client side after a server side rendering has occurred (server to client transition), we can have a page script (ID: __UNIFORM_DATA__) that contains the computed visitor data from the SSR/edge render. This data is injected into the first render to allow score syncing and the server to request commands be applied to the client side data store.
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abstract
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Deletes a visitor's stored data, forgetting them. Important: do not emit any async score update events from this function.
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handleUpdateData(commands, computedValue)
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abstract
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Updates visitor data in the transition store.
NOTE: The updated data is optimistically stored in TransitionDataStore automatically, so unless the updated data is _changed_ by the backend data store, there is no need to emit async score changed events when the visitor data is done updating.
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signalAsyncDataUpdate(newScores)
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protected
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updateData(commands, computedValue)
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Updates data in the transition storage.
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