feat(drizzle-react-hooks): implement useCacheEvents

kleros · Dec 13, 2018 · 0b1275e · 0b1275e
1 parent 80c23cd
commit 0b1275e
Showing 1 changed file with 17 additions and 1 deletion.
diff --git a/src/temp/drizzle-react-hooks.js b/src/temp/drizzle-react-hooks.js
@@ -48,6 +48,21 @@ export const DrizzleProvider = ({ children, drizzle }) => {
     },
     [drizzle, drizzleState]
   )
+  const useCacheEvents = useCallback(
+    (contractName, eventName, eventOptions) => {
+      const [events, setEvents] = useState([])
+      useEffect(
+        () =>
+          drizzle.contracts[contractName].events[eventName](eventOptions).on(
+            'data',
+            event => setEvents(events => [...events, event])
+          ).unsubscribe,
+        [contractName, eventName, eventOptions]
+      )
+      return events
+    },
+    [drizzle]
+  )
   useEffect(
     () =>
       drizzle.store.subscribe(() => setDrizzleState(drizzle.store.getState())),
@@ -60,9 +75,10 @@ export const DrizzleProvider = ({ children, drizzle }) => {
           cacheCall,
           drizzle,
           drizzleState,
+          useCacheEvents,
           useCacheSend
         }),
-        [cacheCall, drizzle, drizzleState, useCacheSend]
+        [cacheCall, drizzle, drizzleState, useCacheEvents, useCacheSend]
       )}
     >
       {children}