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NetworkManager

NetworkManager orchestrates asynchronous fetches. By keeping track of all in-flight requests it is able to dedupe identical requests if they are made using the throttle flag.

implements

NetworkManager implements Manager

Lifecycle​

Success​

Error​

Members​

constructor({ dataExpiryLength = 60000, errorExpiryLength = 1000 })​

Arguments represent the default time (in miliseconds) before a resource is considered 'stale'.

middleware​

Consumed Actions​

Will initiate network request and then dispatch upon completion.

Processed Actions​

Dispatched Actions​

allSettled(): Promise​

Resolves once all fetches inflight are complete. Conceptually Promise.allSettled

skipLogging(action)​

Used by DevtoolsManager to determine whether to log an action

Default:

skipLogging(action: ActionTypes) {
  return action.type === FETCH && action.meta.key in this.fetched;
}

Protected members​

handleFetch(fetchAction)​

Called when middleware intercepts 'rdc/fetch' action.

Will then start a promise for a key and potentially start the network fetch.

Uses throttle only when instructed by action meta. This is valuable for ensures mutation requests always go through.

handleSet(setAction)​

Called when middleware intercepts a set action.

Will resolve the promise associated with set key.

throttle(key, fetch)​

Ensures only one request for a given key is in flight at any time

Uses key to either retrieve in-flight promise, or if not create a new promise and call fetch.

getLastReset(): number​

Timestamp when entire store was last reset

clear(key)​

Clear promise state for a given key

clearAll()​

Ensures all promises are completed by rejecting remaining