chore(sentry_webhook): add basic logs to the webhook so we can debug …

…the pipeline based on event ID (Jigsaw-Code#1454)

* Add some basic logs so we can cross-reference events.

* Add `is-processed` response header.

* Prevent log injection.

* Log response header at DEBUG level.

src/sentry_webhook/index.ts

@@ -32,13 +32,16 @@ exports.postSentryEventToSalesforce = (req: express.Request, res: express.Respon
   if (!sentryEvent) {
     return res.status(400).send('Missing Sentry event');
   }
+  const eventId = sentryEvent.event_id?.replace(/\n|\r/g, '');
   if (!shouldPostEventToSalesforce(sentryEvent)) {
+    console.log('Not posting event:', eventId);
     return res.status(200).send();
   }
   // Use the request message if SentryEvent.message is unpopulated.
   sentryEvent.message = sentryEvent.message || req.body.message;
   postSentryEventToSalesforce(sentryEvent, req.body.project)
     .then(() => {
+      console.log('Successfully posted event:', eventId);
       res.status(200).send();
     })
     .catch((e) => {

src/sentry_webhook/post_sentry_event_to_salesforce.ts

@@ -108,6 +108,7 @@ export function postSentryEventToSalesforce(event: SentryEvent, project: string)
       },
       (res) => {
         if (res.statusCode === 200) {
+          console.debug('Salesforce `is-processed`:', res.headers['is-processed']);
           resolve();
         } else {
           reject(new Error(`Failed to post form data, response status: ${res.statusCode}`));