feat: jinja2

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.jina2_transformer import Jinja2TemplateTransformer
 
 from core.helper.code_executor.python_transformer import PythonTemplateTransformer
 
@@ -25,7 +26,7 @@ class CodeExecutionResponse(BaseModel):
 
 class CodeExecutor:
     @classmethod
-    def execute_code(cls, language: Literal['python3', 'javascript', 'jina2'], code: str, inputs: dict) -> dict:
+    def execute_code(cls, language: Literal['python3', 'javascript', 'jinja2'], code: str, inputs: dict) -> dict:
         """
         Execute code
         :param language: code language
@@ -36,6 +37,8 @@ class CodeExecutor:
         template_transformer = None
         if language == 'python3':
             template_transformer = PythonTemplateTransformer
+        elif language == 'jinja2':
+            template_transformer = Jinja2TemplateTransformer
         else:
             raise CodeExecutionException('Unsupported language')
 
@@ -46,7 +49,7 @@ class CodeExecutor:
             'X-Api-Key': CODE_EXECUTION_API_KEY
         }
         data = {
-            'language': language,
+            'language': language if language != 'jinja2' else 'python3',
             'code': runner,
         }
 

api/core/helper/code_executor/jina2_transformer.py

-# TODO
+import json
\ No newline at end of file
+import re
+
+from core.helper.code_executor.template_transformer import TemplateTransformer
+
+PYTHON_RUNNER = """
+import jinja2
+
+template = jinja2.Template('''{{code}}''')
+
+def main(**inputs):
+    return template.render(**inputs)
+
+# execute main function, and return the result
+output = main(**{{inputs}})
+
+result = f'''<<RESULT>>{output}<<RESULT>>'''
+
+print(result)
+
+"""
+
+class Jinja2TemplateTransformer(TemplateTransformer):
+    @classmethod
+    def transform_caller(cls, code: str, inputs: dict) -> str:
+        """
+        Transform code to python runner
+        :param code: code
+        :param inputs: inputs
+        :return:
+        """
+
+        # transform jinja2 template to python code
+        runner = PYTHON_RUNNER.replace('{{code}}', code)
+        runner = runner.replace('{{inputs}}', json.dumps(inputs, indent=4))
+
+        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 {
+            'result': result
+        }
\ No newline at end of file

api/core/workflow/nodes/template_transform/template_transform_node.py

@@ -52,7 +52,7 @@ class TemplateTransformNode(BaseNode):
         # Run code
         try:
             result = CodeExecutor.execute_code(
-                language='jina2',
+                language='jinja2',
                 code=node_data.template,
                 inputs=variables
             )
@@ -66,7 +66,9 @@ class TemplateTransformNode(BaseNode):
         return NodeRunResult(
             status=WorkflowNodeExecutionStatus.SUCCEEDED,
             inputs=variables,
-            outputs=result['result']
+            outputs={
+                'output': result['result']
+            }
         )
     
     @classmethod

api/tests/integration_tests/workflow/nodes/__mock/code_executor.py

@@ -9,7 +9,7 @@ MOCK = os.getenv('MOCK_SWITCH', 'false') == 'true'
 
 class MockedCodeExecutor:
     @classmethod
-    def invoke(cls, language: Literal['python3', 'javascript', 'jina2'], code: str, inputs: dict) -> dict:
+    def invoke(cls, language: Literal['python3', 'javascript', 'jinja2'], code: str, inputs: dict) -> dict:
         # invoke directly
         if language == 'python3':
             return {