fix(store) : Download agent from store if user is not logged in (#9121)

- resolves - #9120 

### Changes 

- Added a new endpoint to download agent files as JSON, allowing users
to retrieve agent data by store listing version ID and version number.
- Introduced a new `get_agent` function in the database module to fetch
agent details and prepare the graph data for download.
- Enhanced the frontend `AgentInfo` component to include a download
button, which triggers the download of the agent file.
- Integrated loading state and user feedback via toast notifications
during the download process.
- Updated the API client to support the new download functionality.

### Demo video 



https://github.com/user-attachments/assets/6744a753-297f-4ccc-abde-f56ca24ed2d5

### Example Json

```json
{
  "id": "14378095-4cc5-41ea-975e-bd0bce010bea",
  "version": 1,
  "is_active": true,
  "is_template": false,
  "name": "something",
  "description": "1",
  "nodes": [
    {
      "id": "6914efa0-e4fa-4ce8-802c-d5577cf061b6",
      "block_id": "aeb08fc1-2fc1-4141-bc8e-f758f183a822",
      "input_default": {},
      "metadata": {
        "position": {
          "x": 756,
          "y": 452.5
        }
      },
      "input_links": [],
      "output_links": [],
      "webhook_id": null,
      "graph_id": "14378095-4cc5-41ea-975e-bd0bce010bea",
      "graph_version": 1,
      "webhook": null
    }
  ],
  "links": [],
  "input_schema": {
    "type": "object",
    "properties": {},
    "required": []
  },
  "output_schema": {
    "type": "object",
    "properties": {},
    "required": []
  }
}
```

---------

Co-authored-by: SwiftyOS <craigswift13@gmail.com>

autogpt_platform/backend/backend/data/graph.py

@@ -424,6 +424,26 @@ class GraphModel(Graph):
                 result[key] = value
         return result
 
+    def clean_graph(self):
+        blocks = [block() for block in get_blocks().values()]
+
+        input_blocks = [
+            node
+            for node in self.nodes
+            if next(
+                (
+                    b
+                    for b in blocks
+                    if b.id == node.block_id and b.block_type == BlockType.INPUT
+                ),
+                None,
+            )
+        ]
+
+        for node in self.nodes:
+            if any(input_block.id == node.id for input_block in input_blocks):
+                node.input_default["value"] = ""
+
 
 # --------------------- CRUD functions --------------------- #
 

autogpt_platform/backend/backend/server/v2/store/db.py

@@ -1,14 +1,18 @@
 import logging
 import random
 from datetime import datetime
+from typing import Optional
 
+import fastapi
 import prisma.enums
 import prisma.errors
 import prisma.models
 import prisma.types
 
+import backend.data.graph
 import backend.server.v2.store.exceptions
 import backend.server.v2.store.model
+from backend.data.graph import GraphModel
 
 logger = logging.getLogger(__name__)
 
@@ -786,3 +790,45 @@ async def get_my_agents(
         raise backend.server.v2.store.exceptions.DatabaseError(
             "Failed to fetch my agents"
         ) from e
+
+
+async def get_agent(
+    store_listing_version_id: str, version_id: Optional[int]
+) -> GraphModel:
+    """Get agent using the version ID and store listing version ID."""
+    try:
+        store_listing_version = (
+            await prisma.models.StoreListingVersion.prisma().find_unique(
+                where={"id": store_listing_version_id}, include={"Agent": True}
+            )
+        )
+
+        if not store_listing_version or not store_listing_version.Agent:
+            raise fastapi.HTTPException(
+                status_code=404,
+                detail=f"Store listing version {store_listing_version_id} not found",
+            )
+
+        agent = store_listing_version.Agent
+
+        graph = await backend.data.graph.get_graph(
+            agent.id, agent.version, template=True
+        )
+
+        if not graph:
+            raise fastapi.HTTPException(
+                status_code=404, detail=f"Agent {agent.id} not found"
+            )
+
+        graph.version = 1
+        graph.is_template = False
+        graph.is_active = True
+        delattr(graph, "user_id")
+
+        return graph
+
+    except Exception as e:
+        logger.error(f"Error getting agent: {str(e)}")
+        raise backend.server.v2.store.exceptions.DatabaseError(
+            "Failed to fetch agent"
+        ) from e

autogpt_platform/backend/backend/server/v2/store/routes.py

@@ -1,4 +1,6 @@
+import json
 import logging
+import tempfile
 import typing
 import urllib.parse
 
@@ -6,7 +8,9 @@ import autogpt_libs.auth.depends
 import autogpt_libs.auth.middleware
 import fastapi
 import fastapi.responses
+from fastapi.encoders import jsonable_encoder
 
+import backend.data.block
 import backend.data.graph
 import backend.server.v2.store.db
 import backend.server.v2.store.image_gen
@@ -575,3 +579,66 @@ async def generate_image(
             status_code=500,
             content={"detail": "An error occurred while generating the image"},
         )
+
+
+@router.get(
+    "/download/agents/{store_listing_version_id}",
+    tags=["store", "public"],
+)
+async def download_agent_file(
+    store_listing_version_id: str = fastapi.Path(
+        ..., description="The ID of the agent to download"
+    ),
+    version: typing.Optional[int] = fastapi.Query(
+        None, description="Specific version of the agent"
+    ),
+) -> fastapi.responses.FileResponse:
+    """
+    Download the agent file by streaming its content.
+
+    Args:
+        agent_id (str): The ID of the agent to download.
+        version (Optional[int]): Specific version of the agent to download.
+
+    Returns:
+        StreamingResponse: A streaming response containing the agent's graph data.
+
+    Raises:
+        HTTPException: If the agent is not found or an unexpected error occurs.
+    """
+
+    graph_data = await backend.server.v2.store.db.get_agent(
+        store_listing_version_id=store_listing_version_id, version_id=version
+    )
+
+    graph_data.clean_graph()
+    graph_date_dict = jsonable_encoder(graph_data)
+
+    def remove_credentials(obj):
+        if obj and isinstance(obj, dict):
+            if "credentials" in obj:
+                del obj["credentials"]
+            if "creds" in obj:
+                del obj["creds"]
+
+            for value in obj.values():
+                remove_credentials(value)
+        elif isinstance(obj, list):
+            for item in obj:
+                remove_credentials(item)
+        return obj
+
+    graph_date_dict = remove_credentials(graph_date_dict)
+
+    file_name = f"agent_{store_listing_version_id}_v{version or 'latest'}.json"
+
+    # Sending graph as a stream (similar to marketplace v1)
+    with tempfile.NamedTemporaryFile(
+        mode="w", suffix=".json", delete=False
+    ) as tmp_file:
+        tmp_file.write(json.dumps(graph_date_dict))
+        tmp_file.flush()
+
+        return fastapi.responses.FileResponse(
+            tmp_file.name, filename=file_name, media_type="application/json"
+        )

autogpt_platform/backend/test/data/test_graph.py

@@ -160,3 +160,45 @@ async def test_get_input_schema(server: SpinTestServer):
     output_schema = created_graph.output_schema
     output_schema["title"] = "ExpectedOutputSchema"
     assert output_schema == ExpectedOutputSchema.jsonschema()
+
+
+@pytest.mark.asyncio(scope="session")
+async def test_clean_graph(server: SpinTestServer):
+    """
+    Test the clean_graph function that:
+    1. Clears input block values
+    2. Removes credentials from nodes
+    """
+    # Create a graph with input blocks and credentials
+    graph = Graph(
+        id="test_clean_graph",
+        name="Test Clean Graph",
+        description="Test graph cleaning",
+        nodes=[
+            Node(
+                id="input_node",
+                block_id=AgentInputBlock().id,
+                input_default={
+                    "name": "test_input",
+                    "value": "test value",
+                    "description": "Test input description",
+                },
+            ),
+        ],
+        links=[],
+    )
+
+    # Create graph and get model
+    create_graph = CreateGraph(graph=graph)
+    created_graph = await server.agent_server.test_create_graph(
+        create_graph, DEFAULT_USER_ID
+    )
+
+    # Clean the graph
+    created_graph.clean_graph()
+
+    # # Verify input block value is cleared
+    input_node = next(
+        n for n in created_graph.nodes if n.block_id == AgentInputBlock().id
+    )
+    assert input_node.input_default["value"] == ""

autogpt_platform/frontend/src/components/agptui/AgentInfo.tsx

@@ -6,6 +6,10 @@ import { Separator } from "@/components/ui/separator";
 import BackendAPI from "@/lib/autogpt-server-api";
 import { useRouter } from "next/navigation";
 import Link from "next/link";
+import { useToast } from "@/components/ui/use-toast";
+
+import useSupabase from "@/hooks/useSupabase";
+import { DownloadIcon, LoaderIcon } from "lucide-react";
 interface AgentInfoProps {
   name: string;
   creator: string;
@@ -32,8 +36,11 @@ export const AgentInfo: React.FC<AgentInfoProps> = ({
   storeListingVersionId,
 }) => {
   const router = useRouter();
-
   const api = React.useMemo(() => new BackendAPI(), []);
+  const { user } = useSupabase();
+  const { toast } = useToast();
+
+  const [downloading, setDownloading] = React.useState(false);
 
   const handleAddToLibrary = async () => {
     try {
@@ -45,6 +52,46 @@ export const AgentInfo: React.FC<AgentInfoProps> = ({
     }
   };
 
+  const handleDownloadToLibrary = async () => {
+    const downloadAgent = async (): Promise<void> => {
+      setDownloading(true);
+      try {
+        const file = await api.downloadStoreAgent(storeListingVersionId);
+
+        // Similar to Marketplace v1
+        const jsonData = JSON.stringify(file, null, 2);
+        // Create a Blob from the file content
+        const blob = new Blob([jsonData], { type: "application/json" });
+
+        // Create a temporary URL for the Blob
+        const url = window.URL.createObjectURL(blob);
+
+        // Create a temporary anchor element
+        const a = document.createElement("a");
+        a.href = url;
+        a.download = `agent_${storeListingVersionId}.json`; // Set the filename
+
+        // Append the anchor to the body, click it, and remove it
+        document.body.appendChild(a);
+        a.click();
+        document.body.removeChild(a);
+
+        // Revoke the temporary URL
+        window.URL.revokeObjectURL(url);
+
+        toast({
+          title: "Download Complete",
+          description: "Your agent has been successfully downloaded.",
+        });
+      } catch (error) {
+        console.error(`Error downloading agent:`, error);
+        throw error;
+      }
+    };
+    await downloadAgent();
+    setDownloading(false);
+  };
+
   return (
     <div className="w-full max-w-[396px] px-4 sm:px-6 lg:w-[396px] lg:px-0">
       {/* Title */}
@@ -72,15 +119,36 @@ export const AgentInfo: React.FC<AgentInfoProps> = ({
 
       {/* Run Agent Button */}
       <div className="mb-4 w-full lg:mb-[60px]">
-        <button
-          onClick={handleAddToLibrary}
-          className="inline-flex w-full items-center justify-center gap-2 rounded-[38px] bg-violet-600 px-4 py-3 transition-colors hover:bg-violet-700 sm:w-auto sm:gap-2.5 sm:px-5 sm:py-3.5 lg:px-6 lg:py-4"
-        >
-          <IconPlay className="h-5 w-5 text-white sm:h-5 sm:w-5 lg:h-6 lg:w-6" />
-          <span className="font-poppins text-base font-medium text-neutral-50 sm:text-lg">
-            Add To Library
-          </span>
-        </button>
+        {user ? (
+          <button
+            onClick={handleAddToLibrary}
+            className="inline-flex w-full items-center justify-center gap-2 rounded-[38px] bg-violet-600 px-4 py-3 transition-colors hover:bg-violet-700 sm:w-auto sm:gap-2.5 sm:px-5 sm:py-3.5 lg:px-6 lg:py-4"
+          >
+            <IconPlay className="h-5 w-5 text-white sm:h-5 sm:w-5 lg:h-6 lg:w-6" />
+            <span className="font-poppins text-base font-medium text-neutral-50 sm:text-lg">
+              Add To Library
+            </span>
+          </button>
+        ) : (
+          <button
+            onClick={handleDownloadToLibrary}
+            className={`inline-flex w-full items-center justify-center gap-2 rounded-[38px] px-4 py-3 transition-colors sm:w-auto sm:gap-2.5 sm:px-5 sm:py-3.5 lg:px-6 lg:py-4 ${
+              downloading
+                ? "bg-neutral-400"
+                : "bg-violet-600 hover:bg-violet-700"
+            }`}
+            disabled={downloading}
+          >
+            {downloading ? (
+              <LoaderIcon className="h-5 w-5 animate-spin text-white sm:h-5 sm:w-5 lg:h-6 lg:w-6" />
+            ) : (
+              <DownloadIcon className="h-5 w-5 text-white sm:h-5 sm:w-5 lg:h-6 lg:w-6" />
+            )}
+            <span className="font-poppins text-base font-medium text-neutral-50 sm:text-lg">
+              {downloading ? "Downloading..." : "Download Agent as File"}
+            </span>
+          </button>
+        )}
       </div>
 
       {/* Rating and Runs */}

autogpt_platform/frontend/src/lib/autogpt-server-api/client.ts

@@ -348,6 +348,17 @@ export default class BackendAPI {
     return this._get("/store/myagents", params);
   }
 
+  downloadStoreAgent(
+    storeListingVersionId: string,
+    version?: number,
+  ): Promise<BlobPart> {
+    const url = version
+      ? `/store/download/agents/${storeListingVersionId}?version=${version}`
+      : `/store/download/agents/${storeListingVersionId}`;
+
+    return this._get(url);
+  }
+
   /////////////////////////////////////////
   /////////// V2 LIBRARY API //////////////
   /////////////////////////////////////////