feat(auth): implement user authentication system

backend/node_modules/logform/json.js

@@ -0,0 +1,30 @@
+'use strict';
+
+const format = require('./format');
+const { MESSAGE } = require('triple-beam');
+const stringify = require('safe-stable-stringify');
+
+/*
+ * function replacer (key, value)
+ * Handles proper stringification of Buffer and bigint output.
+ */
+function replacer(key, value) {
+  // safe-stable-stringify does support BigInt, however, it doesn't wrap the value in quotes.
+  // Leading to a loss in fidelity if the resulting string is parsed.
+  // It would also be a breaking change for logform.
+  if (typeof value === 'bigint')
+    return value.toString();
+  return value;
+}
+
+/*
+ * function json (info)
+ * Returns a new instance of the JSON format that turns a log `info`
+ * object into pure JSON. This was previously exposed as { json: true }
+ * to transports in `winston < 3.0.0`.
+ */
+module.exports = format((info, opts) => {
+  const jsonStringify = stringify.configure(opts);
+  info[MESSAGE] = jsonStringify(info, opts.replacer || replacer, opts.space);
+  return info;
+});