feat: javascript code

api/.env.example

@@ -135,4 +135,4 @@ BATCH_UPLOAD_LIMIT=10
 
 # CODE EXECUTION CONFIGURATION
 CODE_EXECUTION_ENDPOINT=
-CODE_EXECUTINO_API_KEY=
+CODE_EXECUTION_API_KEY=

api/core/helper/code_executor/code_executor.py

@@ -4,6 +4,7 @@ from typing import Literal, Optional
 from httpx import post
 from pydantic import BaseModel
 from yarl import URL
+from core.helper.code_executor.javascript_transformer import NodeJsTemplateTransformer
 
 from core.helper.code_executor.jina2_transformer import Jinja2TemplateTransformer
 from core.helper.code_executor.python_transformer import PythonTemplateTransformer
@@ -39,17 +40,20 @@ class CodeExecutor:
             template_transformer = PythonTemplateTransformer
         elif language == 'jinja2':
             template_transformer = Jinja2TemplateTransformer
+        elif language == 'javascript':
+            template_transformer = NodeJsTemplateTransformer
         else:
             raise CodeExecutionException('Unsupported language')
 
         runner = template_transformer.transform_caller(code, inputs)
-
         url = URL(CODE_EXECUTION_ENDPOINT) / 'v1' / 'sandbox' / 'run'
         headers = {
             'X-Api-Key': CODE_EXECUTION_API_KEY
         }
         data = {
-            'language': language if language != 'jinja2' else 'python3',
+            'language': 'python3' if language == 'jinja2' else
+                        'nodejs' if language == 'javascript' else
+                        'python3' if language == 'python3' else None,
             'code': runner,
         }
 

api/core/helper/code_executor/javascript_transformer.py

-# TODO
\ No newline at end of file
+import json
+import re
+
+from core.helper.code_executor.template_transformer import TemplateTransformer
+
+NODEJS_RUNNER = """// declare main function here
+{{code}}
+
+// execute main function, and return the result
+// inputs is a dict, unstructured inputs
+output = main({{inputs}})
+
+// convert output to json and print
+output = JSON.stringify(output)
+
+result = `<<RESULT>>${output}<<RESULT>>`
+
+console.log(result)
+"""
+
+
+class NodeJsTemplateTransformer(TemplateTransformer):
+    @classmethod
+    def transform_caller(cls, code: str, inputs: dict) -> str:
+        """
+        Transform code to python runner
+        :param code: code
+        :param inputs: inputs
+        :return:
+        """
+        
+        # transform inputs to json string
+        inputs_str = json.dumps(inputs, indent=4)
+
+        # replace code and inputs
+        runner = NODEJS_RUNNER.replace('{{code}}', code)
+        runner = runner.replace('{{inputs}}', inputs_str)
+
+        return runner
+    
+    @classmethod
+    def transform_response(cls, response: str) -> dict:
+        """
+        Transform response to dict
+        :param response: response
+        :return:
+        """
+        # extract result
+        result = re.search(r'<<RESULT>>(.*)<<RESULT>>', response, re.DOTALL)
+        if not result:
+            raise ValueError('Failed to parse result')
+        result = result.group(1)
+        return json.loads(result)

api/core/workflow/nodes/code/code_node.py

@@ -15,6 +15,16 @@ MAX_STRING_LENGTH = 1000
 MAX_STRING_ARRAY_LENGTH = 30
 MAX_NUMBER_ARRAY_LENGTH = 1000
 
+JAVASCRIPT_DEFAULT_CODE = """function main({args1, args2}) {
+    return {
+        result: args1 + args2
+    }
+}"""
+
+PYTHON_DEFAULT_CODE = """def main(args1: int, args2: int) -> dict:
+    return {
+        "result": args1 + args2,
+    }"""
 
 class CodeNode(BaseNode):
     _node_data_cls = CodeNodeData
@@ -42,9 +52,7 @@ class CodeNode(BaseNode):
                         }
                     ],
                     "code_language": "javascript",
-                    "code": "async function main(arg1, arg2) {\n    return new Promise((resolve, reject) => {"
-                            "\n    	if (true) {\n	        resolve({\n	            \"result\": arg1 + arg2"
-                            "\n        	});\n        } else {\n        	reject(\"e\");\n    }\n    });\n}",
+                    "code": JAVASCRIPT_DEFAULT_CODE,
                     "outputs": [
                         {
                             "variable": "result",
@@ -68,8 +76,7 @@ class CodeNode(BaseNode):
                     }
                 ],
                 "code_language": "python3",
-                "code": "def main(\n    arg1: int,\n    arg2: int,\n) -> int:\n    return {\n        \"result\": arg1 "
-                        "+ arg2\n    }",
+                "code": PYTHON_DEFAULT_CODE,
                 "outputs": [
                     {
                         "variable": "result",