rename to promiseInterval

src/services/promise_interval/promise_interval.js

@@ -0,0 +1,28 @@
+
+// promiseInterval - replacement for setInterval for promises, starts counting
+// the interval only after a promise is done instead of immediately.
+// - promiseCall is a function that returns a promise, it's called the first
+// time after the first interval.
+// - interval is the interval delay in ms.
+
+export const promiseInterval = (promiseCall, interval) => {
+  let stopped = false
+  let timeout = null
+  let func = () => {}
+
+  func = () => {
+    promiseCall().finally(() => {
+      if (stopped) return
+      timeout = window.setTimeout(func, interval)
+    })
+  }
+
+  const stopFetcher = () => {
+    stopped = true
+    window.clearTimeout(timeout)
+  }
+
+  timeout = window.setTimeout(func, interval)
+
+  return { stop: stopFetcher }
+}