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cancerDHC / ccdh-terminology-service

CCDH Terminology and Mapping Service
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Bug: `/conceptreferences` & `​/conceptreferences​/{curie}​/mappings` error 500 #113

Open joeflack4 opened 3 years ago

joeflack4 commented 3 years ago

Description

When trying to use conceptreferences/ endpoint, internal server error 500 happens.

Errrors

Short err:

neo4j.exceptions.CypherSyntaxError: {code: Neo.ClientError.Statement.SyntaxError} {message: Invalid input 'N': expected <init> (line 1, column 1 (offset: 0))

Long err:

INFO:     192.168.224.1:35894 - "GET /ecp/Current/exporttool/microsoft.exchange.ediscovery.exporttool.application HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:36086 - "GET /owa/auth/logon.aspx HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:36542 - "GET / HTTP/1.0" 307 Temporary Redirect
INFO:     192.168.224.1:41052 - "GET /ReportServer HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:41348 - "GET /.env HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:41356 - "POST / HTTP/1.0" 405 Method Not Allowed
INFO:     192.168.224.1:46484 - "GET /login HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:43236 - "GET / HTTP/1.0" 307 Temporary Redirect
INFO:     192.168.224.1:43240 - "GET /docs HTTP/1.0" 200 OK
INFO:     192.168.224.1:45474 - "GET /ecp/Current/exporttool/microsoft.exchange.ediscovery.exporttool.application HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:45068 - "GET / HTTP/1.0" 307 Temporary Redirect
INFO:     192.168.224.1:45076 - "GET /docs HTTP/1.0" 200 OK
INFO:     192.168.224.1:34388 - "GET / HTTP/1.0" 307 Temporary Redirect
INFO:     192.168.224.1:34392 - "GET / HTTP/1.0" 307 Temporary Redirect
INFO:     192.168.224.1:34396 - "GET /docs HTTP/1.0" 200 OK
INFO:     192.168.224.1:39320 - "GET /robots.txt HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:39336 - "GET /docs HTTP/1.0" 200 OK
INFO:     192.168.224.1:39352 - "GET /models/ HTTP/1.0" 200 OK
INFO:     192.168.224.1:41800 - "GET /.git/config HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:46472 - "GET / HTTP/1.0" 307 Temporary Redirect
INFO:     192.168.224.1:46476 - "GET / HTTP/1.0" 307 Temporary Redirect
INFO:     192.168.224.1:46480 - "GET /docs HTTP/1.0" 200 OK
INFO:     192.168.224.1:48452 - "POST /GponForm/diag_Form?style/ HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:34468 - "GET / HTTP/1.0" 307 Temporary Redirect
INFO:     192.168.224.1:34472 - "GET /docs HTTP/1.0" 200 OK
INFO:     192.168.224.1:38576 - "GET /actuator/health HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:38656 - "GET /?unix:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA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HTTP/1.0" 307 Temporary Redirect
INFO:     192.168.224.1:56288 - "GET / HTTP/1.0" 307 Temporary Redirect
INFO:     192.168.224.1:56296 - "GET /.env HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:56308 - "POST / HTTP/1.0" 405 Method Not Allowed
INFO:     192.168.224.1:57104 - "GET /.env HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:57112 - "POST / HTTP/1.0" 405 Method Not Allowed
INFO:     192.168.224.1:59856 - "GET /.env HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:59864 - "POST / HTTP/1.0" 405 Method Not Allowed
INFO:     192.168.224.1:34796 - "GET / HTTP/1.0" 307 Temporary Redirect
INFO:     192.168.224.1:34800 - "GET /docs HTTP/1.0" 200 OK
INFO:     192.168.224.1:52262 - "GET /owa/auth/logon.aspx?url=https%3a%2f%2f1%2fecp%2f HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:58626 - "GET / HTTP/1.0" 307 Temporary Redirect
INFO:     192.168.224.1:58630 - "GET /docs HTTP/1.0" 200 OK
INFO:     192.168.224.1:41180 - "GET /.env HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:41192 - "POST / HTTP/1.0" 405 Method Not Allowed
INFO:     192.168.224.1:42960 - "POST /GponForm/diag_Form?style/ HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:47952 - "GET / HTTP/1.0" 307 Temporary Redirect
INFO:     192.168.224.1:47958 - "GET /docs HTTP/1.0" 200 OK
INFO:     192.168.224.1:47964 - "GET /openapi.json HTTP/1.0" 200 OK
INFO:     192.168.224.1:48016 - "GET /models/CRDC-H/entities/BodySite/attributes HTTP/1.0" 200 OK
INFO:     192.168.224.1:48196 - "GET /models/CRDC-H/entities/BodySite/attributes/site HTTP/1.0" 200 OK
INFO:     192.168.224.1:48964 - "GET /enumerations/CRDC-H.BodySite.site?value_only=false HTTP/1.0" 200 OK
INFO:     192.168.224.1:49158 - "GET /models/CRDC-H/entities/BodySite/attributes/site/mappings HTTP/1.0" 200 OK
INFO:     192.168.224.1:50474 - "GET / HTTP/1.0" 307 Temporary Redirect
INFO:     192.168.224.1:50478 - "GET /docs HTTP/1.0" 200 OK
INFO:     192.168.224.1:50482 - "GET /openapi.json HTTP/1.0" 200 OK
INFO:     192.168.224.1:50526 - "GET /values/Other%20and%20unspecified%20urinary%20organs HTTP/1.0" 200 OK
INFO:     192.168.224.1:51272 - "GET / HTTP/1.0" 307 Temporary Redirect
INFO:     192.168.224.1:51416 - "GET /conceptreferences?key=uri&value=C148345&modifier=equals HTTP/1.0" 404 Not Found
INFO:     192.168.224.1:51442 - "GET /conceptreferences?key=uri&value=C148345&modifier=contains HTTP/1.0" 500 Internal Server Error
ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/uvicorn/protocols/http/h11_impl.py", line 369, in run_asgi
    result = await app(self.scope, self.receive, self.send)
  File "/usr/local/lib/python3.8/site-packages/uvicorn/middleware/proxy_headers.py", line 59, in __call__
    return await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/fastapi/applications.py", line 208, in __call__
    await super().__call__(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/applications.py", line 112, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/errors.py", line 181, in __call__
    raise exc from None
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/errors.py", line 159, in __call__
    await self.app(scope, receive, _send)
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/cors.py", line 78, in __call__
    await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/exceptions.py", line 82, in __call__
    raise exc from None
  File "/usr/local/lib/python3.8/site-packages/starlette/exceptions.py", line 71, in __call__
    await self.app(scope, receive, sender)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 580, in __call__
    await route.handle(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 241, in handle
    await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 52, in app
    response = await func(request)
  File "/usr/local/lib/python3.8/site-packages/fastapi/routing.py", line 219, in app
    raw_response = await run_endpoint_function(
  File "/usr/local/lib/python3.8/site-packages/fastapi/routing.py", line 154, in run_endpoint_function
    return await run_in_threadpool(dependant.call, **values)
  File "/usr/local/lib/python3.8/site-packages/starlette/concurrency.py", line 40, in run_in_threadpool
    return await loop.run_in_executor(None, func, *args)
  File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/src/tccm-api/tccm_api/routers/concept_reference.py", line 39, in get_concept_references
    records = graph.get_concept_references_by_value(key, new_value, modifier)
  File "/src/tccm-api/tccm_api/db/tccm_graph.py", line 80, in get_concept_references_by_value
    return session.read_transaction(self.get_concept_references_by_value_tx, key, value, modifier)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/simple.py", line 409, in read_transaction
    return self._run_transaction(READ_ACCESS, transaction_function, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/simple.py", line 338, in _run_transaction
    result = transaction_function(tx, *args, **kwargs)
  File "/src/tccm-api/tccm_api/db/tccm_graph.py", line 39, in get_concept_references_by_value_tx
    result = tx.run(query, value=value)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/transaction.py", line 130, in run
    result._tx_ready_run(query, parameters, **kwparameters)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 103, in _tx_ready_run
    self._run(query, parameters, None, None, None, **kwparameters)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 142, in _run
    self._attach()
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 230, in _attach
    self._connection.fetch_message()
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 62, in inner
    func(*args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/neo4j/io/_bolt4.py", line 271, in fetch_message
    response.on_failure(summary_metadata or {})
  File "/usr/local/lib/python3.8/site-packages/neo4j/io/_common.py", line 184, in on_failure
    raise Neo4jError.hydrate(**metadata)
neo4j.exceptions.CypherSyntaxError: {code: Neo.ClientError.Statement.SyntaxError} {message: Invalid input 'N': expected <init> (line 1, column 1 (offset: 0))
"None"
 ^}
ERROR:uvicorn.error:Exception in ASGI application
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/uvicorn/protocols/http/h11_impl.py", line 369, in run_asgi
    result = await app(self.scope, self.receive, self.send)
  File "/usr/local/lib/python3.8/site-packages/uvicorn/middleware/proxy_headers.py", line 59, in __call__
    return await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/fastapi/applications.py", line 208, in __call__
    await super().__call__(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/applications.py", line 112, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/errors.py", line 181, in __call__
    raise exc from None
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/errors.py", line 159, in __call__
    await self.app(scope, receive, _send)
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/cors.py", line 78, in __call__
    await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/exceptions.py", line 82, in __call__
    raise exc from None
  File "/usr/local/lib/python3.8/site-packages/starlette/exceptions.py", line 71, in __call__
    await self.app(scope, receive, sender)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 580, in __call__
    await route.handle(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 241, in handle
    await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 52, in app
    response = await func(request)
  File "/usr/local/lib/python3.8/site-packages/fastapi/routing.py", line 219, in app
    raw_response = await run_endpoint_function(
  File "/usr/local/lib/python3.8/site-packages/fastapi/routing.py", line 154, in run_endpoint_function
    return await run_in_threadpool(dependant.call, **values)
  File "/usr/local/lib/python3.8/site-packages/starlette/concurrency.py", line 40, in run_in_threadpool
    return await loop.run_in_executor(None, func, *args)
  File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/src/tccm-api/tccm_api/routers/concept_reference.py", line 39, in get_concept_references
    records = graph.get_concept_references_by_value(key, new_value, modifier)
  File "/src/tccm-api/tccm_api/db/tccm_graph.py", line 80, in get_concept_references_by_value
    return session.read_transaction(self.get_concept_references_by_value_tx, key, value, modifier)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/simple.py", line 409, in read_transaction
    return self._run_transaction(READ_ACCESS, transaction_function, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/simple.py", line 338, in _run_transaction
    result = transaction_function(tx, *args, **kwargs)
  File "/src/tccm-api/tccm_api/db/tccm_graph.py", line 39, in get_concept_references_by_value_tx
    result = tx.run(query, value=value)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/transaction.py", line 130, in run
    result._tx_ready_run(query, parameters, **kwparameters)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 103, in _tx_ready_run
    self._run(query, parameters, None, None, None, **kwparameters)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 142, in _run
    self._attach()
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 230, in _attach
    self._connection.fetch_message()
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 62, in inner
    func(*args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/neo4j/io/_bolt4.py", line 271, in fetch_message
    response.on_failure(summary_metadata or {})
  File "/usr/local/lib/python3.8/site-packages/neo4j/io/_common.py", line 184, in on_failure
    raise Neo4jError.hydrate(**metadata)
neo4j.exceptions.CypherSyntaxError: {code: Neo.ClientError.Statement.SyntaxError} {message: Invalid input 'N': expected <init> (line 1, column 1 (offset: 0))
"None"
 ^}
INFO:     192.168.224.1:51470 - "GET /conceptreferences?key=code&value=C148345&modifier=contains HTTP/1.0" 500 Internal Server Error
ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/uvicorn/protocols/http/h11_impl.py", line 369, in run_asgi
    result = await app(self.scope, self.receive, self.send)
  File "/usr/local/lib/python3.8/site-packages/uvicorn/middleware/proxy_headers.py", line 59, in __call__
    return await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/fastapi/applications.py", line 208, in __call__
    await super().__call__(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/applications.py", line 112, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/errors.py", line 181, in __call__
    raise exc from None
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/errors.py", line 159, in __call__
    await self.app(scope, receive, _send)
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/cors.py", line 78, in __call__
    await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/exceptions.py", line 82, in __call__
    raise exc from None
  File "/usr/local/lib/python3.8/site-packages/starlette/exceptions.py", line 71, in __call__
    await self.app(scope, receive, sender)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 580, in __call__
    await route.handle(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 241, in handle
    await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 52, in app
    response = await func(request)
  File "/usr/local/lib/python3.8/site-packages/fastapi/routing.py", line 219, in app
    raw_response = await run_endpoint_function(
  File "/usr/local/lib/python3.8/site-packages/fastapi/routing.py", line 154, in run_endpoint_function
    return await run_in_threadpool(dependant.call, **values)
  File "/usr/local/lib/python3.8/site-packages/starlette/concurrency.py", line 40, in run_in_threadpool
    return await loop.run_in_executor(None, func, *args)
  File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/src/tccm-api/tccm_api/routers/concept_reference.py", line 39, in get_concept_references
    records = graph.get_concept_references_by_value(key, new_value, modifier)
  File "/src/tccm-api/tccm_api/db/tccm_graph.py", line 80, in get_concept_references_by_value
    return session.read_transaction(self.get_concept_references_by_value_tx, key, value, modifier)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/simple.py", line 409, in read_transaction
    return self._run_transaction(READ_ACCESS, transaction_function, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/simple.py", line 338, in _run_transaction
    result = transaction_function(tx, *args, **kwargs)
  File "/src/tccm-api/tccm_api/db/tccm_graph.py", line 39, in get_concept_references_by_value_tx
    result = tx.run(query, value=value)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/transaction.py", line 130, in run
    result._tx_ready_run(query, parameters, **kwparameters)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 103, in _tx_ready_run
    self._run(query, parameters, None, None, None, **kwparameters)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 142, in _run
    self._attach()
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 230, in _attach
    self._connection.fetch_message()
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 62, in inner
    func(*args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/neo4j/io/_bolt4.py", line 271, in fetch_message
    response.on_failure(summary_metadata or {})
  File "/usr/local/lib/python3.8/site-packages/neo4j/io/_common.py", line 184, in on_failure
    raise Neo4jError.hydrate(**metadata)
neo4j.exceptions.CypherSyntaxError: {code: Neo.ClientError.Statement.SyntaxError} {message: Invalid input 'N': expected <init> (line 1, column 1 (offset: 0))
"None"
 ^}
ERROR:uvicorn.error:Exception in ASGI application
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/uvicorn/protocols/http/h11_impl.py", line 369, in run_asgi
    result = await app(self.scope, self.receive, self.send)
  File "/usr/local/lib/python3.8/site-packages/uvicorn/middleware/proxy_headers.py", line 59, in __call__
    return await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/fastapi/applications.py", line 208, in __call__
    await super().__call__(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/applications.py", line 112, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/errors.py", line 181, in __call__
    raise exc from None
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/errors.py", line 159, in __call__
    await self.app(scope, receive, _send)
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/cors.py", line 78, in __call__
    await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/exceptions.py", line 82, in __call__
    raise exc from None
  File "/usr/local/lib/python3.8/site-packages/starlette/exceptions.py", line 71, in __call__
    await self.app(scope, receive, sender)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 580, in __call__
    await route.handle(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 241, in handle
    await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 52, in app
    response = await func(request)
  File "/usr/local/lib/python3.8/site-packages/fastapi/routing.py", line 219, in app
    raw_response = await run_endpoint_function(
  File "/usr/local/lib/python3.8/site-packages/fastapi/routing.py", line 154, in run_endpoint_function
    return await run_in_threadpool(dependant.call, **values)
  File "/usr/local/lib/python3.8/site-packages/starlette/concurrency.py", line 40, in run_in_threadpool
    return await loop.run_in_executor(None, func, *args)
  File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/src/tccm-api/tccm_api/routers/concept_reference.py", line 39, in get_concept_references
    records = graph.get_concept_references_by_value(key, new_value, modifier)
  File "/src/tccm-api/tccm_api/db/tccm_graph.py", line 80, in get_concept_references_by_value
    return session.read_transaction(self.get_concept_references_by_value_tx, key, value, modifier)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/simple.py", line 409, in read_transaction
    return self._run_transaction(READ_ACCESS, transaction_function, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/simple.py", line 338, in _run_transaction
    result = transaction_function(tx, *args, **kwargs)
  File "/src/tccm-api/tccm_api/db/tccm_graph.py", line 39, in get_concept_references_by_value_tx
    result = tx.run(query, value=value)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/transaction.py", line 130, in run
    result._tx_ready_run(query, parameters, **kwparameters)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 103, in _tx_ready_run
    self._run(query, parameters, None, None, None, **kwparameters)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 142, in _run
    self._attach()
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 230, in _attach
    self._connection.fetch_message()
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 62, in inner
    func(*args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/neo4j/io/_bolt4.py", line 271, in fetch_message
    response.on_failure(summary_metadata or {})
  File "/usr/local/lib/python3.8/site-packages/neo4j/io/_common.py", line 184, in on_failure
    raise Neo4jError.hydrate(**metadata)
neo4j.exceptions.CypherSyntaxError: {code: Neo.ClientError.Statement.SyntaxError} {message: Invalid input 'N': expected <init> (line 1, column 1 (offset: 0))
"None"
 ^}
INFO:     192.168.224.1:51586 - "GET /conceptreferences?key=code&value=C17998&modifier=contains HTTP/1.0" 500 Internal Server Error
ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/uvicorn/protocols/http/h11_impl.py", line 369, in run_asgi
    result = await app(self.scope, self.receive, self.send)
  File "/usr/local/lib/python3.8/site-packages/uvicorn/middleware/proxy_headers.py", line 59, in __call__
    return await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/fastapi/applications.py", line 208, in __call__
    await super().__call__(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/applications.py", line 112, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/errors.py", line 181, in __call__
    raise exc from None
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/errors.py", line 159, in __call__
    await self.app(scope, receive, _send)
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/cors.py", line 78, in __call__
    await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/exceptions.py", line 82, in __call__
    raise exc from None
  File "/usr/local/lib/python3.8/site-packages/starlette/exceptions.py", line 71, in __call__
    await self.app(scope, receive, sender)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 580, in __call__
    await route.handle(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 241, in handle
    await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 52, in app
    response = await func(request)
  File "/usr/local/lib/python3.8/site-packages/fastapi/routing.py", line 219, in app
    raw_response = await run_endpoint_function(
  File "/usr/local/lib/python3.8/site-packages/fastapi/routing.py", line 154, in run_endpoint_function
    return await run_in_threadpool(dependant.call, **values)
  File "/usr/local/lib/python3.8/site-packages/starlette/concurrency.py", line 40, in run_in_threadpool
    return await loop.run_in_executor(None, func, *args)
  File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/src/tccm-api/tccm_api/routers/concept_reference.py", line 39, in get_concept_references
    records = graph.get_concept_references_by_value(key, new_value, modifier)
  File "/src/tccm-api/tccm_api/db/tccm_graph.py", line 80, in get_concept_references_by_value
    return session.read_transaction(self.get_concept_references_by_value_tx, key, value, modifier)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/simple.py", line 409, in read_transaction
    return self._run_transaction(READ_ACCESS, transaction_function, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/simple.py", line 338, in _run_transaction
    result = transaction_function(tx, *args, **kwargs)
  File "/src/tccm-api/tccm_api/db/tccm_graph.py", line 39, in get_concept_references_by_value_tx
    result = tx.run(query, value=value)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/transaction.py", line 130, in run
    result._tx_ready_run(query, parameters, **kwparameters)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 103, in _tx_ready_run
    self._run(query, parameters, None, None, None, **kwparameters)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 142, in _run
    self._attach()
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 230, in _attach
    self._connection.fetch_message()
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 62, in inner
    func(*args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/neo4j/io/_bolt4.py", line 271, in fetch_message
    response.on_failure(summary_metadata or {})
  File "/usr/local/lib/python3.8/site-packages/neo4j/io/_common.py", line 184, in on_failure
    raise Neo4jError.hydrate(**metadata)
neo4j.exceptions.CypherSyntaxError: {code: Neo.ClientError.Statement.SyntaxError} {message: Invalid input 'N': expected <init> (line 1, column 1 (offset: 0))
"None"
 ^}
ERROR:uvicorn.error:Exception in ASGI application
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/uvicorn/protocols/http/h11_impl.py", line 369, in run_asgi
    result = await app(self.scope, self.receive, self.send)
  File "/usr/local/lib/python3.8/site-packages/uvicorn/middleware/proxy_headers.py", line 59, in __call__
    return await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/fastapi/applications.py", line 208, in __call__
    await super().__call__(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/applications.py", line 112, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/errors.py", line 181, in __call__
    raise exc from None
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/errors.py", line 159, in __call__
    await self.app(scope, receive, _send)
  File "/usr/local/lib/python3.8/site-packages/starlette/middleware/cors.py", line 78, in __call__
    await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/exceptions.py", line 82, in __call__
    raise exc from None
  File "/usr/local/lib/python3.8/site-packages/starlette/exceptions.py", line 71, in __call__
    await self.app(scope, receive, sender)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 580, in __call__
    await route.handle(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 241, in handle
    await self.app(scope, receive, send)
  File "/usr/local/lib/python3.8/site-packages/starlette/routing.py", line 52, in app
    response = await func(request)
  File "/usr/local/lib/python3.8/site-packages/fastapi/routing.py", line 219, in app
    raw_response = await run_endpoint_function(
  File "/usr/local/lib/python3.8/site-packages/fastapi/routing.py", line 154, in run_endpoint_function
    return await run_in_threadpool(dependant.call, **values)
  File "/usr/local/lib/python3.8/site-packages/starlette/concurrency.py", line 40, in run_in_threadpool
    return await loop.run_in_executor(None, func, *args)
  File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/src/tccm-api/tccm_api/routers/concept_reference.py", line 39, in get_concept_references
    records = graph.get_concept_references_by_value(key, new_value, modifier)
  File "/src/tccm-api/tccm_api/db/tccm_graph.py", line 80, in get_concept_references_by_value
    return session.read_transaction(self.get_concept_references_by_value_tx, key, value, modifier)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/simple.py", line 409, in read_transaction
    return self._run_transaction(READ_ACCESS, transaction_function, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/simple.py", line 338, in _run_transaction
    result = transaction_function(tx, *args, **kwargs)
  File "/src/tccm-api/tccm_api/db/tccm_graph.py", line 39, in get_concept_references_by_value_tx
    result = tx.run(query, value=value)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/transaction.py", line 130, in run
    result._tx_ready_run(query, parameters, **kwparameters)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 103, in _tx_ready_run
    self._run(query, parameters, None, None, None, **kwparameters)
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 142, in _run
    self._attach()
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 230, in _attach
    self._connection.fetch_message()
  File "/usr/local/lib/python3.8/site-packages/neo4j/work/result.py", line 62, in inner
    func(*args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/neo4j/io/_bolt4.py", line 271, in fetch_message
    response.on_failure(summary_metadata or {})
  File "/usr/local/lib/python3.8/site-packages/neo4j/io/_common.py", line 184, in on_failure
    raise Neo4jError.hydrate(**metadata)
neo4j.exceptions.CypherSyntaxError: {code: Neo.ClientError.Statement.SyntaxError} {message: Invalid input 'N': expected <init> (line 1, column 1 (offset: 0))
"None"
 ^}