added functions

functions/todos-delete-batch.js

@@ -0,0 +1,33 @@
+/* code from functions/todos-delete-batch.js */
+/* Import faunaDB sdk */
+const faunadb = require('faunadb')
+
+const q = faunadb.query
+const client = new faunadb.Client({
+    secret: process.env.FAUNADB_SERVER_SECRET
+})
+
+exports.handler = async (event, context) => {
+    const data = JSON.parse(event.body)
+    console.log('data', data)
+    console.log('Function `todo-delete-batch` invoked', data.ids)
+    // construct batch query from IDs
+    const deleteAllCompletedTodoQuery = data.ids.map((id) => {
+        return q.Delete(q.Ref(`classes/todos/${id}`))
+    })
+    // Hit fauna with the query to delete the completed items
+    return client.query(deleteAllCompletedTodoQuery)
+        .then((response) => {
+            console.log('success', response)
+            return {
+                statusCode: 200,
+                body: JSON.stringify(response)
+            }
+        }).catch((error) => {
+            console.log('error', error)
+            return {
+                statusCode: 400,
+                body: JSON.stringify(error)
+            }
+        })
+}