Courey/create synonym server only (nasa-gcn#1933)

app/routes/_gcn.synonyms/synonyms.server.ts

@@ -0,0 +1,42 @@
+/*!
+ * Copyright © 2023 United States Government as represented by the
+ * Administrator of the National Aeronautics and Space Administration.
+ * All Rights Reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+import { tables } from '@architect/functions'
+import type { DynamoDBDocument } from '@aws-sdk/lib-dynamodb/dist-types/DynamoDBDocument'
+import crypto from 'crypto'
+
+/*
+ * If an eventId already has a synonym and is passed in, it will unlink the
+ * eventId from the old synonym and the only remaining link will be to the
+ * new synonym.
+ *
+ * BatchWriteItem has a limit of 25 items, so the user may not add more than
+ * 25 synonyms at a time.
+ */
+export async function createSynonyms(...synonymousEventIds: string[]) {
+  const uuid = crypto.randomUUID()
+  const db = await tables()
+  const client = db._doc as unknown as DynamoDBDocument
+
+  const writeRequests = synonymousEventIds
+    .filter((eventId) => Boolean(eventId))
+    .map((eventId) => ({
+      PutRequest: {
+        Item: { uuid, eventId },
+      },
+    }))
+
+  const params = {
+    RequestItems: {
+      synonyms: writeRequests,
+    },
+  }
+
+  await client.batchWrite(params)
+
+  return uuid
+}