From d6f99f57b7351ea4ad447076dd4dbd3cdd782e64 Mon Sep 17 00:00:00 2001
From: Michael Bumann <hello@michaelbumann.com>
Date: Thu, 28 Mar 2019 11:12:32 +0100
Subject: [PATCH] Auto resolve promises in repl

---
 scripts/repl.js | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/scripts/repl.js b/scripts/repl.js
index fcce559..5929e0b 100644
--- a/scripts/repl.js
+++ b/scripts/repl.js
@@ -5,6 +5,21 @@ const Kredits = require('../lib/kredits');
 
 const getNetworkId = require('./helpers/networkid.js')
 
+function promiseEval (repl) {
+  const currentEval = repl.eval;
+  return function (cmd, context, filename, callback) {
+    currentEval(cmd, context, filename, (err, result) => {
+      if (result && typeof result.then === 'function') {
+        console.log('...waiting for promise to resolve');
+        return result
+          .then(response => callback(null, response))
+          .catch(err => callback(err, null));
+      }
+      return callback(err, result);
+    })
+  }
+}
+
 module.exports = async function(callback) {
   const networkId = await getNetworkId(web3)
   const provider = new ethers.providers.Web3Provider(
@@ -16,6 +31,7 @@ module.exports = async function(callback) {
     let r = REPL.start();
     r.context.kredits = kredits;
     r.context.web3 = web3;
+    r.eval = promiseEval(r);
 
     r.on('exit', () => {
       console.log('Bye');