feat: construct resource url from backend

templates/types/streaming/express/src/controllers/stream-helper.ts

@@ -17,6 +17,17 @@ export function appendImageData(data: StreamData, imageUrl?: string) {
   });
 }
 
+function getNodeUrl(metadata: Metadata) {
+  const url = metadata["URL"];
+  if (url) return url;
+  const fileName = metadata["file_name"];
+  if (fileName) {
+    const fileServerUrlPrefix = process.env.FILESERVER_URL_PREFIX || "";
+    return `${fileServerUrlPrefix}/data/${fileName}`;
+  }
+  return undefined;
+}
+
 export function appendSourceData(
   data: StreamData,
   sourceNodes?: NodeWithScore<Metadata>[],
@@ -29,6 +40,7 @@ export function appendSourceData(
         ...node.node.toMutableJSON(),
         id: node.node.id_,
         score: node.score ?? null,
+        url: getNodeUrl(node.node.metadata),
       })),
     },
   });

templates/types/streaming/fastapi/app/api/routers/chat.py

+import os
 from pydantic import BaseModel
 from typing import List, Any, Optional, Dict, Tuple
 from fastapi import APIRouter, Depends, HTTPException, Request, status
@@ -38,14 +39,25 @@ class _SourceNodes(BaseModel):
     metadata: Dict[str, Any]
     score: Optional[float]
     text: str
+    url: Optional[str]
 
     @classmethod
     def from_source_node(cls, source_node: NodeWithScore):
+        metadata = source_node.node.metadata
+        url = metadata.get("URL")
+        
+        if not url:
+            file_name = metadata.get("file_name")
+            if file_name:
+                file_server_url_prefix = os.getenv("FILESERVER_URL_PREFIX", "")
+                url = f"{file_server_url_prefix}/data/{file_name}"
+
         return cls(
             id=source_node.node.node_id,
-            metadata=source_node.node.metadata,
+            metadata=metadata,
             score=source_node.score,
             text=source_node.node.text,  # type: ignore
+            url=url
         )
 
     @classmethod

templates/types/streaming/nextjs/app/api/chat/stream-helper.ts

@@ -17,6 +17,17 @@ export function appendImageData(data: StreamData, imageUrl?: string) {
   });
 }
 
+function getNodeUrl(metadata: Metadata) {
+  const url = metadata["URL"];
+  if (url) return url;
+  const fileName = metadata["file_name"];
+  if (fileName) {
+    const fileServerUrlPrefix = process.env.FILESERVER_URL_PREFIX || "";
+    return `${fileServerUrlPrefix}/data/${fileName}`;
+  }
+  return undefined;
+}
+
 export function appendSourceData(
   data: StreamData,
   sourceNodes?: NodeWithScore<Metadata>[],
@@ -29,6 +40,7 @@ export function appendSourceData(
         ...node.node.toMutableJSON(),
         id: node.node.id_,
         score: node.score ?? null,
+        url: getNodeUrl(node.node.metadata),
       })),
     },
   });

templates/types/streaming/nextjs/app/components/ui/chat/chat-sources.tsx

@@ -2,7 +2,6 @@ import { Check, Copy } from "lucide-react";
 import { useMemo } from "react";
 import { Button } from "../button";
 import { HoverCard, HoverCardContent, HoverCardTrigger } from "../hover-card";
-import { getStaticFileDataUrl } from "../lib/url";
 import { SourceData, SourceNode } from "./index";
 import { useCopyToClipboard } from "./use-copy-to-clipboard";
 import PdfDialog from "./widgets/PdfDialog";
@@ -33,12 +32,11 @@ type NodeInfo = {
 
 function getNodeInfo(node: SourceNode): NodeInfo {
   if (typeof node.metadata["URL"] === "string") {
-    const url = node.metadata["URL"];
     return {
       id: node.id,
       type: NODE_TYPE.URL,
-      path: url,
-      url,
+      path: node.url,
+      url: node.url,
     };
   }
   if (typeof node.metadata["file_path"] === "string") {
@@ -47,8 +45,8 @@ function getNodeInfo(node: SourceNode): NodeInfo {
     return {
       id: node.id,
       type: NODE_TYPE.FILE,
-      path: node.metadata["file_path"],
-      url: getStaticFileDataUrl(filePath),
+      path: filePath,
+      url: node.url,
     };
   }
 
@@ -125,7 +123,7 @@ function NodeInfo({ nodeInfo }: { nodeInfo: NodeInfo }) {
           <span>{nodeInfo.path}</span>
         </a>
         <Button
-          onClick={() => copyToClipboard(nodeInfo.path!)}
+          onClick={() => copyToClipboard(nodeInfo.url!)}
           size="icon"
           variant="ghost"
           className="h-12 w-12 shrink-0"

templates/types/streaming/nextjs/app/components/ui/chat/index.ts

@@ -21,6 +21,7 @@ export type SourceNode = {
   metadata: Record<string, unknown>;
   score?: number;
   text: string;
+  url?: string;
 };
 
 export type SourceData = {

templates/types/streaming/nextjs/app/components/ui/lib/url.ts

-const staticFileAPI = "/api/files";
-
-export const getStaticFileDataUrl = (filePath: string) => {
-  const isUsingBackend = !!process.env.NEXT_PUBLIC_CHAT_API;
-  const fileUrl = `${staticFileAPI}/${filePath}`;
-  if (isUsingBackend) {
-    const backendOrigin = new URL(process.env.NEXT_PUBLIC_CHAT_API!).origin;
-    return `${backendOrigin}${fileUrl}`;
-  }
-  return fileUrl;
-};