http: add

examples/http/models/error.js

@@ -0,0 +1,42 @@
+// Create a new error. Errors are pushed into an array so they can be
+// queued. We're doing a bit of timestamp trickery here so each error
+// is shown for exactly one second before being dropped. Probably
+// useful for real world scenarios; especially when coupled to
+// fancy CSS animation thingies
+
+// Each error is displayed 1 second
+const ERROR_TIMEOUT = 1000
+
+module.exports = {
+  state: {
+    error: [],
+    errorTimeDone: null,
+    triggerTime: null
+  },
+  reducers: {
+    error: function (action, state) {
+      const now = Date.now()
+      const timeDone = state.errorTimeDone
+      const newTimestamp = (timeDone && timeDone >= now)
+        ? timeDone + ERROR_TIMEOUT
+        : now + ERROR_TIMEOUT
+
+      return {
+        error: state.error.concat(action.payload),
+        errorTimeDone: newTimestamp
+      }
+    },
+    'error:delete': function (action, state) {
+      state.error.shift()
+      return { error: state.error }
+    }
+  },
+  effects: {
+    error: function (action, state, send) {
+      const timeout = state.errorTimeDone - Date.now()
+      setTimeout(function () {
+        send('error:delete')
+      }, timeout)
+    }
+  }
+}