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RemoteDisconnected: Remote end closed connection without response

Hello,

While trying to download tick history data, we get at first a response with status code 202 , then it keeps pooling for many minutes ( sometimes hours) without response until we get the following exception :

- HTTPSConnectionPool(host='selectapi.datascope.refinitiv.com', port=443): Max retries exceeded with url: /RestApi/v1/Extractions/ExtractRawResult(ExtractionId='0x08bad7f94939549f') (Caused by ProxyError('Cannot connect to proxy.', RemoteDisconnected('Remote end closed connection without response')))

Can you please advise on this issue ?

#technology#producttick-history-rest-apipython api
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Hi @khaoula.riad-ext ,

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@khaoula.riad-ext

Hi,

Please be informed that a reply has been verified as correct in answering the question, and marked as such.

Thanks,

AHS

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@khaoula.riad-ext

Thank you for reaching out to us.

How often did the application poll for the data?

Typically, the application needs to wait for several minutes (3-5 minutes) before each polling.

According to the error, it may relate to the proxy.

- HTTPSConnectionPool(host='selectapi.datascope.refinitiv.com', port=443): Max retries exceeded with url: /RestApi/v1/Extractions/ExtractRawResult(ExtractionId='0x08bad7f94939549f') (Caused by ProxyError('Cannot connect to proxy.', RemoteDisconnected('Remote end closed connection without response')))

Does the application use a proxy server to connect to the DataScope Select server? You may contact your IT support team to verify if there is a proxy server installed on your machine or system.



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Hi @Jirapongse

I am facing a similar issue

HTTPSConnectionPool(host='selectapi.datascope.refinitiv.com', port=443): Max retries exceeded with url: /RestApi/v1/Extractions/ExtractWithNotes (Caused by ProxyError('Cannot connect to proxy.', RemoteDisconnected('Remote end closed connection without response')

With this payload

payload = '{"ExtractionRequest": {"@odata.type": "#DataScope.Select.Api.Extractions.ExtractionRequests.HistoricalReferenceExtractionRequest", "ContentFieldNames": ["RIC", "Security Description", "Put Call Flag", "Expiration Date", "Strike Price"], "IdentifierList": {"@odata.type": "#DataScope.Select.Api.Extractions.ExtractionRequests.InstrumentIdentifierList", "InstrumentIdentifiers": [{"Identifier": "0#TY+", "IdentifierType": "ChainRIC"}], "ValidationOptions": {"AllowHistoricalInstruments": true}, "UseUserPreferencesForValidationOptions": false}, "Condition": {"ReportDateRangeType": "Range", "QueryStartDate": "2024-01-22", "QueryEndDate": "2024-01-23"}}}'

It works with a different chain RIC however

'{"ExtractionRequest": {"@odata.type": "#DataScope.Select.Api.Extractions.ExtractionRequests.HistoricalReferenceExtractionRequest", "ContentFieldNames": ["RIC", "Security Description", "Put Call Flag", "Expiration Date", "Strike Price"], "IdentifierList": {"@odata.type": "#DataScope.Select.Api.Extractions.ExtractionRequests.InstrumentIdentifierList", "InstrumentIdentifiers": [{"Identifier": "0#G1TW+", "IdentifierType": "ChainRIC"}], "ValidationOptions": {"AllowHistoricalInstruments": true}, "UseUserPreferencesForValidationOptions": false}, "Condition": {"ReportDateRangeType": "Range", "QueryStartDate": "2024-01-22", "QueryEndDate": "2024-01-23"}}

I thought it might be volume related but issue persists when only querying 2 dates at a time. The same chain "0#TY+" works fine in postman directly.

Any idea why it errors with one chainRIC and not another?

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@una.keller

Acorrding to the error (Caused by ProxyError), it relates to the proxy server used in the environment. You can contact your IT support team to verify what the problem is. It may relate to the HTTP timeout.

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