add 'body-parser' to package.json, fix #39 (#42)

Author: HustCoderHu

package.json

@@ -1,6 +1,7 @@
 {
   "dependencies": {
     "axios": "^1.6.8",
+    "body-parser": "^1.20.2",
     "express": "^4.19.2"
   }
 }