Upgraded h5grove version and added it as a fastapi router

Closes #872 (closed)

nomad/app/h5grove_app.py

+#
+# Copyright The NOMAD Authors.
+#
+# This file is part of NOMAD. See https://nomad-lab.eu for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from fastapi import FastAPI, status, Request
+from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import JSONResponse
+import traceback
+
+from h5grove import fastapi_utils as h5grove_router
+
+from nomad import config, utils
+
+
+logger = utils.get_logger(__name__)
+
+h5grove_router.settings.base_dir = config.fs.staging
+
+app = FastAPI()
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+
+@app.exception_handler(Exception)
+async def unicorn_exception_handler(request: Request, e: Exception):
+    logger.error('unexpected exception in API', url=request.url, exc_info=e)
+    return JSONResponse(
+        status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+        content={
+            'detail': {
+                'reason': 'Unexpected exception while handling your request',
+                'exception': str(e),
+                'exception_class': e.__class__.__name__,
+                'exception_traceback': traceback.format_exc()
+            }
+        }
+    )
+
+app.include_router(h5grove_router.router)