feat: Integrate LitVar into Seqvar page (#421)

backend/app/api/internal/endpoints/remote.py

@@ -218,3 +218,33 @@ async def pubtator3_api(request: Request, path: str):
         headers=backend_resp.headers,
         background=BackgroundTasks([BackgroundTask(backend_resp.aclose)]),
     )
+
+
+@router.get("/litvar/{path:path}")
+async def litvar_api(request: Request, path: str):
+    """
+    Proxy requests to the `LitVar <https://www.ncbi.nlm.nih.gov/research/bionlp/litvar/api/v1/entity/search>`_ backend.
+
+    :param request: request
+    :type request: :class:`fastapi.Request`
+    :param path: path to append to the backend URL
+    :type path: str
+    :return: response
+    :rtype: :class:`fastapi.responses.StreamingResponse`
+    """
+    url = request.url
+    backend_url = "https://www.ncbi.nlm.nih.gov/research/bionlp/litvar/api/v1/entity/search/" + path
+
+    client = httpx_client_wrapper()
+    backend_req = client.build_request(
+        method=request.method,
+        url=backend_url,
+        content=await request.body(),
+    )
+    backend_resp = await client.send(backend_req, stream=True)
+    return StreamingResponse(
+        backend_resp.aiter_raw(),
+        status_code=backend_resp.status_code,
+        headers=backend_resp.headers,
+        background=BackgroundTasks([BackgroundTask(backend_resp.aclose)]),
+    )

backend/tests/api/internal/test_remote.py

@@ -86,3 +86,19 @@ async def test_pubtator3_api(httpx_mock: HTTPXMock, client: TestClient):
     # assert:
     assert response.status_code == 200
     assert response.json() == {"res": "Mocked response"}
+
+
+@pytest.mark.anyio
+async def test_litvar_api(httpx_mock: HTTPXMock, client: TestClient):
+    """Test forwarding to LitVar API."""
+    # arrange:
+    httpx_mock.add_response(
+        url="https://www.ncbi.nlm.nih.gov/research/bionlp/litvar/api/v1/entity/search/foo",
+        method="GET",
+        json={"res": "Mocked response"},
+    )
+    # act:
+    response = client.get("/internal/remote/litvar/foo")
+    # assert:
+    assert response.status_code == 200
+    assert response.json() == {"res": "Mocked response"}

frontend/src/plugins/reevFrontendLib.ts

@@ -6,6 +6,7 @@ export function setupBackendUrls() {
   urlConfig.baseUrlViguno = '/internal/proxy/viguno'
   urlConfig.baseUrlNginx = '/internal/proxy/nginx'
   urlConfig.baseUrlPubtator = '/internal/remote/pubtator3-api'
+  urlConfig.baseUrlLitVar = '/internal/remote/litvar'
   urlConfig.baseUrlCadaPrio = '/internal/proxy/cada-prio'
   urlConfig.baseUrlDotty = '/internal/proxy/dotty'
   urlConfig.baseUrlVariantValidator = '/internal/remote/variantvalidator'