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ArcGIS Server GPService Part Upload Commit Checksum has no effect

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02-05-2026 01:21 AM
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marco_vertigis
Regular Contributor

Hi there,

I am currently implementing a .net client for consuming the geoprocessing service part upload REST api.

The commit endpoint accepts a checksum parameter which IMHO should verify that the file which was uploaded in parts is actually the file which was split up by the client.

See: https://developers.arcgis.com/rest/services-reference/enterprise/commit/

The documentation lacks quite a bit of information:

  • How should the checksum be constructed (probably SHA251)?
  • How should the checksum string be encoded (probably BASE64 or HEX)?

I made some tests and also provided some nonesense checksums which were all accepted by the server. I suspect that this parameter has no effect at all.

Does anyone have any insights or experiences with this?

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