One of the main tools of Woovi is Relay. Relay is a GraphQL Client designed for high performance on any scale. When performing one of your main operations, query, we use a hook called useLazyLoadQuery, this hook has a property called fetchPolicy, which defines whether the query will be made from the local cache (we call it "store") or whether it should be made from a network request (we call it "network").
The following definitions fetchPolicy are:
store-or-network
store-or-network is the default value, if data exists in the store, and is not obsolete, it won't do a network request, otherwise, it will do a network request.
Example: We can use it in high-flow places to save network requests. Consequently avoiding unnecessary requests.
store-and-network
store-and-network will use the data of the store, and always do a network request without making regardless.
Example: We can imagine the Instagram home, we can render outdated data while fetching new data.
network-only
network-only always will search the data making a network request.
Example: We need to render the balance of the customer, we can't render a balance out of date, so always we will make a new network request without considering the store.
store-only
store-only always will search the data of the store.
Example: We use store-only when we assume that this data already exists in the store, and we will not need the refetch.
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