Handle failed API requests, reauth when token expired

index.js

@@ -54,11 +54,11 @@ function waitForInvoicePaid (room, nick, invoice, retries=0) {
   }
 
   lndhub.getInvoice(invoice.payment_hash).then(async data => {
-    if (data.is_paid) {
+    if (data && data.is_paid) {
       console.log(`Invoice paid: ${invoice.payment_hash}`);
       await grantVoice(room, nick);
     } else {
-      setTimeout(waitForInvoicePaid, 3000, room, nick, invoice, retries++);
+      if (!data) console.warn('Fetching invoice status failed');
       setTimeout(waitForInvoicePaid, timeout, room, nick, invoice, retries++);
     }
   });
@@ -93,10 +93,14 @@ async function handleVoiceRequest (stanza) {
     console.log(`${nick} requested voice in ${room}`);
 
     const invoice = await lndhub.createInvoice(config.amounts.voice, `Donation for ${room}`);
-    console.log(`Created lightning invoice for ${nick}: ${invoice.payment_hash}`)
-
-    await respondToVoiceRequest(room, nick, invoice);
-    waitForInvoicePaid(room, nick, invoice);
+    if (invoice) {
+      console.log(`Created lightning invoice for ${nick}: ${invoice.payment_hash}`)
+      await respondToVoiceRequest(room, nick, invoice);
+      waitForInvoicePaid(room, nick, invoice);
+    } else {
+      console.warn(`Invoice creation failed!`);
+      // TODO notify ops contact
+    }
   } catch(err) {
     console.error(err);
   }
@@ -113,10 +117,14 @@ async function connectXmpp () {
 }
 
 function connectLndhub () {
-  return lndhub.auth(config.lndhub.username, config.lndhub.password).then(() => {
-    console.log("Connected to Lndhub");
+  return lndhub.auth(config.lndhub.username, config.lndhub.password).then(connected => {
+    if (connected) {
+      console.log("Connected to Lndhub");
+    } else {
+      process.exit(1);
+    }
   }).catch(err => {
-    console.warn(`Lndhub auth failed: ${err}`);
+    console.error(`Lndhub connection failed: ${err}`);
   });
 }