From 9c2130ba2df3f919809d1f9783000058c14ecdb2 Mon Sep 17 00:00:00 2001
From: Billy Lo <billylo1@gmail.com>
Date: Thu, 30 Sep 2021 02:24:24 -0400
Subject: [PATCH] specify error correction level of QR code in photos to make
 it compatible with BC scanner app

---
 src/photo.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/photo.ts b/src/photo.ts
index 97a3e5b..24fb66b 100644
--- a/src/photo.ts
+++ b/src/photo.ts
@@ -5,6 +5,7 @@ import {BrowserQRCodeSvgWriter} from "@zxing/browser";
 import { toPng, toJpeg, toBlob, toPixelData, toSvg } from 'html-to-image';
 import * as Sentry from '@sentry/react';
 import {QrCode,Encoding,PackageResult,QrFormat,PassPhotoCommon} from './passphoto-common';
+import { EncodeHintType } from "@zxing/library";
 
 export class Photo {
 
@@ -67,7 +68,8 @@ export class Photo {
             }
 
             const codeWriter = new BrowserQRCodeSvgWriter();
-            const svg = codeWriter.write(qrCode.message,200,200);
+            const hints : Map<EncodeHintType,any> = new Map().set(EncodeHintType.ERROR_CORRECTION,'M');
+            const svg = codeWriter.write(qrCode.message,200,200, hints);
             svg.setAttribute('style','background-color: white');
             document.getElementById('qrcode').appendChild(svg);