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docs: modernize Mongoose examples using async/await #1054

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21 changes: 13 additions & 8 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -120,13 +120,15 @@ application must be configured.

```javascript
passport.use(new LocalStrategy(
function(username, password, done) {
User.findOne({ username: username }, function (err, user) {
if (err) { return done(err); }
async function(username, password, done) {
try {
const user = await User.findOne({ username: username });
if (!user) { return done(null, false); }
if (!user.verifyPassword(password)) { return done(null, false); }
return done(null, user);
});
} catch (err) {
return done(err);
}
}
));
```
Expand All @@ -150,10 +152,13 @@ passport.serializeUser(function(user, done) {
done(null, user.id);
});

passport.deserializeUser(function(id, done) {
User.findById(id, function (err, user) {
done(err, user);
});
passport.deserializeUser(async function(id, done) {
try {
const user = await User.findById(id);
done(null, user);
} catch (err) {
done(err);
}
});
```

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