Add snake case converter helper function

libs/common/src/helper/snakeCaseConverter.ts

@@ -0,0 +1,16 @@
+function toSnakeCase(str) {
+  return str.replace(/([A-Z])/g, '_$1').toLowerCase();
+}
+
+export function convertKeysToSnakeCase(obj) {
+  if (Array.isArray(obj)) {
+    return obj.map((v) => convertKeysToSnakeCase(v));
+  } else if (obj !== null && obj.constructor === Object) {
+    return Object.keys(obj).reduce((result, key) => {
+      const snakeKey = toSnakeCase(key);
+      result[snakeKey] = convertKeysToSnakeCase(obj[key]);
+      return result;
+    }, {});
+  }
+  return obj;
+}