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The flowchart below represents the logical flow for each dataset and resource in HDX and occurs nightly:. It is slightly out of date since update frequency “Adhoc” is now “As needed” and the HTTP header last modified field is no longer used as it proved unreliable.
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Data freshness is available from Docker image: https://hub.docker.com/r/mcarans/hdx-data-freshness/. The code for the implementation is here: https://github.com/OCHA-DAP/hdx-data-freshness. It has tests with a high level of coverage.
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