diff --git a/info.json b/info.json
index 923d084..956ee48 100644
--- a/info.json
+++ b/info.json
@@ -4,29 +4,34 @@
   "icon": "icon.png",
   "display": "OCR Space",
   "homepage": "https://github.com/pot-app/pot-app-recognize-plugin-template",
-  "needs": [{ "key": "apikey", "display": "Api Key" }],
+  "needs": [
+    {
+      "key": "engine",
+      "display": "Engine",
+      "type": "select",
+      "options": { "1": "Engine 1", "2": "Engine 2", "3": "Engine 3" }
+    },
+    { "key": "apikey", "display": "Api Key", "type": "input" }
+  ],
   "language": {
-    "auto": "",
-    "zh_cn": "",
-    "zh_tw": "",
-    "en": "",
-    "ja": "",
-    "ko": "",
-    "fr": "",
-    "es": "",
-    "ru": "",
-    "de": "",
-    "it": "",
-    "tr": "",
-    "pt_pt": "",
-    "pt_br": "",
-    "vi": "",
-    "id": "",
-    "th": "",
-    "ms": "",
-    "ar": "",
-    "hi": "",
-    "mn_cy": "",
-    "km": ""
+    "auto": "eng",
+    "zh_cn": "chs",
+    "zh_tw": "cht",
+    "en": "eng",
+    "ja": "jpn",
+    "ko": "kor",
+    "fr": "fre",
+    "es": "spa",
+    "ru": "rus",
+    "de": "ger",
+    "it": "ita",
+    "tr": "tur",
+    "pt_pt": "por",
+    "pt_br": "por",
+    "vi": "vie",
+    "th": "tai",
+    "ar": "ara",
+    "hi": "hin",
+    "fa": "per"
   }
 }
diff --git a/src/lib.rs b/src/lib.rs
index 5a110f1..d0b12c3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -15,11 +15,15 @@ pub fn recognize(
         Some(apikey) => apikey.to_string(),
         None => return Err("apikey not found".into()),
     };
-
+    let engine = match needs.get("engine") {
+        Some(engine) => engine.to_string(),
+        None => "1".to_string(),
+    };
     let base64 = format!("data:image/png;base64,{}", base64);
     let mut form_data = HashMap::new();
     form_data.insert("base64Image", base64);
-    form_data.insert("OCREngine", "2".to_string());
+    form_data.insert("OCREngine", engine);
+    form_data.insert("language", lang.to_string());
 
     let res: Value = client
         .post("https://api.ocr.space/parse/image")
@@ -29,18 +33,22 @@ pub fn recognize(
         .send()?
         .json()?;
 
-    fn parse_result(res: Value) -> Option<String> {
+    fn parse_result(res: Value) -> Option<Result<Value, Box<dyn Error>>> {
+        println!("{res:?}");
+        if let Some(error) = res.as_object()?.get("ErrorMessage") {
+            return Some(Err(error.to_string().into()));
+        }
         let result_list = res.as_object()?.get("ParsedResults")?.as_array()?;
         let mut result = String::new();
         for i in result_list {
             let parsed_text = i.as_object()?.get("ParsedText")?.as_str()?;
             result.push_str(parsed_text);
         }
-        Some(result)
+        Some(Ok(Value::String(result)))
     }
 
     if let Some(result) = parse_result(res) {
-        return Ok(Value::String(result));
+        return result;
     } else {
         return Err("Response Parse Error".into());
     }
@@ -52,8 +60,9 @@ mod tests {
     #[test]
     fn try_request() {
         let mut needs = HashMap::new();
-        needs.insert("apikey".to_string(), "".to_string());
-        let result = recognize("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", "", needs).unwrap();
+        needs.insert("apikey".to_string(), "K86964409388957".to_string());
+        needs.insert("engine".to_string(), "1".to_string());
+        let result = recognize("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", "eng", needs).unwrap();
         println!("{result}");
     }
 }