Add print statements to firestore function (#742)

GoogleCloudPlatform · Sep 25, 2018 · fcb7ed7 · fcb7ed7
1 parent 292308b
commit fcb7ed7
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Showing 2 changed files with 21 additions and 8 deletions.
diff --git a/functions/firebase/index.js b/functions/firebase/index.js
@@ -43,10 +43,18 @@ exports.helloRTDB = (event, callback) => {
 exports.helloFirestore = (event, callback) => {
   const triggerResource = event.resource;
 
-  // We're just going to log the resource string and the
-  // full event to prove that it worked.
-  console.log(`Function triggered by change to: ${triggerResource}`);
-  console.log(JSON.stringify(event));
+  console.log(`Function triggered by event on: ${triggerResource}`);
+  console.log(`Event type: ${event.eventType}`);
+
+  if (event.data.oldValue && Object.keys(event.data.oldValue).length) {
+    console.log(`\nOld value:`);
+    console.log(JSON.stringify(event.data.oldValue, null, 2));
+  }
+
+  if (event.data.value && Object.keys(event.data.value).length) {
+    console.log(`\nNew value:`);
+    console.log(JSON.stringify(event.data.value, null, 2));
+  }
 
   // Don't forget to call the callback.
   callback();

diff --git a/functions/node8/index.js b/functions/node8/index.js
@@ -152,12 +152,17 @@ exports.helloFirestore = (data, context) => {
   const triggerResource = context.resource;
 
   console.log(`Function triggered by change to: ${triggerResource}`);
+  console.log(`Event type: ${context.eventType}`);
 
-  console.log(`\nOld value:`);
-  console.log(JSON.stringify(data.oldValue, null, 2));
+  if (data.oldValue && Object.keys(data.oldValue).length) {
+    console.log(`\nOld value:`);
+    console.log(JSON.stringify(data.oldValue, null, 2));
+  }
 
-  console.log(`\nNew value:`);
-  console.log(JSON.stringify(data.value, null, 2));
+  if (data.value && Object.keys(data.value).length) {
+    console.log(`\nNew value:`);
+    console.log(JSON.stringify(data.value, null, 2));
+  }
 };
 // [END functions_firebase_firestore_node8]