get and store last run time in ssm

index.mjs

@@ -1,4 +1,5 @@
 import 'websocket-polyfill'
+import { SSMClient, GetParameterCommand, PutParameterCommand } from '@aws-sdk/client-ssm'
 import { extract } from '@extractus/feed-extractor'
 import NDK, { NDKEvent, NDKPrivateKeySigner } from '@nostr-dev-kit/ndk'
 import bech32 from 'bech32-buffer'
@@ -17,7 +18,30 @@ export const handler = async (event) => {
     const region = process.env.AWS_REGION || "us-east-1"
     const feed = event.feedUrl
     const privkey = toHexString(event.nostrNsec)
-    const since = event.since
+    const lastRunTimeParam = event.lastRunTimeParam
+
+    let response = {
+        totalItems: 0,
+        successes: 0,
+        errors: []
+    }
+
+    const ssmClient = new SSMClient({ region })
+    const params = {
+        Name: lastRunTimeParam 
+    }
+    const ssmGetCommand = new GetParameterCommand(params);
+
+    let since = ""
+    ssmClient.send(ssmGetCommand)
+        .then(data => {
+            since = data.Parameter.Value
+        }).catch(err => {
+            console.error(err)
+            response.errors.push(err)
+            return response
+        })
+    
 
     if (feed === "") {
         console.error("feedUrl was not set.")
@@ -26,13 +50,7 @@ export const handler = async (event) => {
             body: "feedUrl must be provided in payload."
         }
     }
-
-    let response = {
-        totalItems: 0,
-        successes: 0,
-        errors: []
-    }
-
+    
     const ndk = new NDK({
         signer: new NDKPrivateKeySigner(privkey),
         explicitRelayUrls: [
@@ -80,6 +98,19 @@ export const handler = async (event) => {
         }
     }
 
+    params.Name = lastRunTimeParam
+    params.Value = new Date().toISOString()
+    params.Type = "String"
+    params.Overwrite = true
+
+    const ssmPutCommand = new PutParameterCommand(params)
+    ssmClient.send(ssmPutCommand)
+        .catch(err => {
+            console.error(err)
+            response.errors.push(err)
+            return response
+        })
+
     return response
 }