better chain sale logic to avoid missing notifs

src/scraper.js

@@ -295,8 +295,7 @@ class Scrape extends Collection {
             txDate: timestamp
           }
           writeToDatabase(q)
-            .then((res) => this.writeLastBlock(log.blockNumber))
-            .catch((err) => console.log(`Error writing to database: ${err}`));
+            .then(async _ => {
               let notifSent = await checkUnsentNotif(txHash, logIndex);
               if (process.env.DISCORD_ACTIVE == 1 && (notifSent || process.env.FORCE == 1)) {
                 postDiscord(q)
@@ -306,6 +305,9 @@ class Scrape extends Collection {
                   })
                   .catch((err) => console.log(`Error posting to Discord: ${err}`));
               }
+              this.writeLastBlock(log.blockNumber);
+            })
+            .catch((err) => console.log(`Error writing to database: ${err}`));
         }
       });
     } catch(err) {