Override existing predictions

src/routes/prediction.ts

@@ -7,10 +7,10 @@ import PredictionModel from '../models/prediction';
 const router = express.Router();
 
 
-router.post('/prediction/new', (req, res, next) => {
+router.post('/prediction/new', async (req, res, next) => {
 	console.log("New Prediction");
 	console.log(JSON.stringify(req.body));
-	new PredictionModel(req.body).save((err, data) => {
+	await PredictionModel.findOneAndUpdate( { name: req.body.name }, { value: req.body.value }, { upsert: true, new: true }, (err, data) => {
 		if(err) return next(err);
 		db.log(req, 'predictions', {_id: data._id}, data.toObject());
 	});