Add retry samples (#19)

Author: ejizba

js/src/functions/timerTriggerWithRetry.js

@@ -0,0 +1,19 @@
+const { app } = require('@azure/functions');
+
+app.timer('timerTriggerWithRetry', {
+    schedule: '0 */5 * * * *',
+    retry: {
+        strategy: 'fixedDelay',
+        delayInterval: {
+            seconds: 10,
+        },
+        maxRetryCount: 4,
+    },
+    handler: (myTimer, context) => {
+        if (context.retryContext?.retryCount < 2) {
+            throw new Error('Retry!');
+        } else {
+            context.log('Timer function processed request.');
+        }
+    },
+});

ts/src/functions/timerTriggerWithRetry.ts

@@ -0,0 +1,21 @@
+import { app, InvocationContext, Timer } from '@azure/functions';
+
+export async function timerTriggerWithRetry(myTimer: Timer, context: InvocationContext): Promise<void> {
+    if (context.retryContext?.retryCount < 2) {
+        throw new Error('Retry!');
+    } else {
+        context.log('Timer function processed request.');
+    }
+}
+
+app.timer('timerTriggerWithRetry', {
+    schedule: '0 */5 * * * *',
+    retry: {
+        strategy: 'fixedDelay',
+        delayInterval: {
+            seconds: 10,
+        },
+        maxRetryCount: 4,
+    },
+    handler: timerTriggerWithRetry,
+});