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src/langbot/pkg/workflow/nodes/http_request.py

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+"""HTTP Request Node - make HTTP API calls
+
+Node metadata is loaded from: ../../templates/metadata/nodes/http_request.yaml
+"""
+
+from __future__ import annotations
+
+from typing import Any, ClassVar
+
+from ..entities import ExecutionContext
+from ..node import WorkflowNode, workflow_node, NodePort, NodeConfig
+
+
+@workflow_node('http_request')
+class HTTPRequestNode(WorkflowNode):
+    """HTTP request node - make HTTP API calls"""
+
+    type_name = "http_request"
+    category = "process"
+    icon = "🌐"
+    name = "http_request"
+    description = "http_request"
+    name_zh = "HTTP 请求"
+    name_en = "HTTP Request"
+    description_zh = "向外部 API 发送 HTTP 请求"
+    description_en = "Make HTTP requests to external APIs"
+
+    inputs: ClassVar[list[NodePort]] = []
+    outputs: ClassVar[list[NodePort]] = []
+    config_schema: ClassVar[list[NodeConfig]] = []
+
+    async def execute(self, inputs: dict[str, Any], context: ExecutionContext) -> dict[str, Any]:
+        import aiohttp
+
+        url = self.get_config("url", "")
+        method = self.get_config("method", "GET")
+        timeout = self.get_config("timeout", 30)
+        content_type = self.get_config("content_type", "application/json")
+
+        headers = inputs.get("headers", {})
+        headers["Content-Type"] = content_type
+
+        auth_type = self.get_config("auth_type", "none")
+        auth_config = self.get_config("auth_config", {})
+
+        if auth_type == "bearer":
+            headers["Authorization"] = f"Bearer {auth_config.get('token', '')}"
+        elif auth_type == "api_key":
+            header_name = auth_config.get("header", "X-API-Key")
+            headers[header_name] = auth_config.get("key", "")
+
+        body = inputs.get("body")
+
+        try:
+            async with aiohttp.ClientSession() as session:
+                async with session.request(
+                    method=method, url=url,
+                    json=body if content_type == "application/json" else None,
+                    data=body if content_type != "application/json" else None,
+                    headers=headers,
+                    timeout=aiohttp.ClientTimeout(total=timeout)
+                ) as response:
+                    try:
+                        response_data = await response.json()
+                    except Exception:
+                        response_data = await response.text()
+
+                    return {"response": response_data, "status_code": response.status, "headers": dict(response.headers)}
+        except Exception as e:
+            return {"response": None, "status_code": 0, "headers": {}, "error": str(e)}