Send metrics event from backend for on chain transaction failures (#6500)

* Send metrics event from backend for on chain transaction failures

* Passes state object to backEndMetaMetricsEvent, and adds getMetaMetricState selector

1 files changed, 26 insertions, 0 deletions

diff --git a/app/scripts/lib/backend-metametrics.js b/app/scripts/lib/backend-metametrics.js
new file mode 100644
index 000000000..e3c163c1a
--- /dev/null
+++ b/app/scripts/lib/backend-metametrics.js
@@ -0,0 +1,26 @@
+const {
+  getMetaMetricState,
+} = require('../../../ui/app/selectors/selectors')
+const {
+  sendMetaMetricsEvent,
+} = require('../../../ui/app/helpers/utils/metametrics.util')
+
+const inDevelopment = process.env.NODE_ENV === 'development'
+
+const METAMETRICS_TRACKING_URL = inDevelopment
+  ? 'http://www.metamask.io/metametrics'
+  : 'http://www.metamask.io/metametrics-prod'
+
+function backEndMetaMetricsEvent (metaMaskState, eventData) {
+  const stateEventData = getMetaMetricState({ metamask: metaMaskState })
+
+  if (stateEventData.participateInMetaMetrics) {
+      sendMetaMetricsEvent({
+        ...stateEventData,
+        ...eventData,
+        url: METAMETRICS_TRACKING_URL + '/backend',
+      })
+  }
+}
+
+module.exports = backEndMetaMetricsEvent