a thousand fixes and now signEvent and getPublic are fully working.

extension/background.js

@@ -1,34 +1,41 @@
 import browser from 'webextension-polyfill'
-import {validateEvent, signEvent, getPublicKey} from 'nostr-tools'
+import {Buffer} from 'buffer'
+import {validateEvent, signEvent, getEventHash, getPublicKey} from 'nostr-tools'
 
-browser.runtime.onMessage.addListener(async (req, sender, reply) => {
+browser.runtime.onMessage.addListener(async (req, sender) => {
   let {type, params, host} = req
 
   try {
     switch (type) {
       case 'getPublicKey': {
-        let results = browser.storage.local.get('private_key')
+        let results = await browser.storage.local.get('private_key')
         if (results && results.private_key) {
-          reply(getPublicKey(results.private_key))
+          return Buffer.from(getPublicKey(results.private_key)).toString('hex')
         } else {
-          reply({error: 'no private key found'})
+          return {error: 'no private key found'}
         }
-        break
       }
       case 'signEvent': {
         let {event} = params
-        if (!validateEvent(event)) return reply({error: 'invalid event'})
 
-        let results = browser.storage.local.get('private_key')
+        let results = await browser.storage.local.get('private_key')
         if (results && results.private_key) {
-          reply(signEvent(event, results.private_key))
+          if (!event.pubkey)
+            event.pubkey = Buffer.from(
+              getPublicKey(results.private_key)
+            ).toString('hex')
+          if (!event.id) event.id = getEventHash(event)
+
+          if (!validateEvent(event)) return {error: 'invalid event'}
+
+          let signature = await signEvent(event, results.private_key)
+          return Buffer.from(signature).toString('hex')
         } else {
-          reply({error: 'no private key found'})
+          return {error: 'no private key found'}
         }
-        break
       }
     }
   } catch (error) {
-    reply({error})
+    return {error}
   }
 })