fix: throw error message from discord

Author: lvqq

README.md

@@ -1,7 +1,7 @@
 # midjourney-fetch
 [![npm version](https://img.shields.io/npm/v/midjourney-fetch.svg)](https://www.npmjs.com/package/midjourney-fetch) ![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/GPTGenius/midjourney-fetch/ci.yml?branch=main) ![node-current (scoped)](https://img.shields.io/node/v/midjourney-fetch) ![GitHub](https://img.shields.io/github/license/GPTGenius/midjourney-fetch)
 
-Fetch api for midjournery on discord
+Fetch api for midjourney on discord
 
 ## Usage
 ```typescript

package.json

@@ -1,6 +1,6 @@
 {
   "name": "midjourney-fetch",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "description": "",
   "type": "module",
   "main": "./dist/index.js",

src/midjourney.ts

@@ -90,7 +90,21 @@ export class Midjourney {
       },
     });
     if (res.status >= 400) {
-      throw new Error(`[${res.status}]Interactions failed`);
+      let msg = '';
+      try {
+        const data = await res.json();
+        if (this.debugger) {
+          this.log('Request failed', JSON.stringify(data));
+        }
+        msg = data?.message;
+      } catch (e) {
+        // catch JSON error
+      }
+      if (msg) {
+        throw new Error(msg);
+      } else {
+        throw new Error(`Interactions failed with ${res.status}`);
+      }
     }
   }