https://community.esri.com/t5/arcgis-rest-apis-and-services-questions/how-to-post-update-to-a-feature-where-it-has-a/m-p/1522865#M4816 <P>You could use <STRONG>Calculate</STRONG> instead.</P><P><A href="https://developers.arcgis.com/rest/services-reference/enterprise/calculate-feature-service-layer/" target="_blank">https://developers.arcgis.com/rest/services-reference/enterprise/calculate-feature-service-layer/</A></P><P>You'd have to format the post differently, but it can update any and all fields on the layer, and includes a <EM>where</EM> parameter. You could use it to update individual features, with "where=unique_field='some_value'" to restrict the calculation.</P> Fri, 16 Aug 2024 13:44:18 GMT jcarlson 2024-08-16T13:44:18Z https://community.esri.com/t5/arcgis-rest-apis-and-services-questions/how-to-post-update-to-a-feature-where-it-has-a/m-p/1522843#M4815 <P>Is it possible to use a where clause in an&nbsp;ArcGIS REST API POST to update attributes of a feature where a custom field as a unique value?</P><P>I have a field with unique values in it which I would like to use to identify which feature to update, rather than using ObjectId. The reason I don't want to use ObjectID is because that would require a preceding GET query to obtain the&nbsp;ObjectId, and that will slow down the overall processing, and will double the number of callouts consumed from my system's limit.</P> Fri, 16 Aug 2024 13:17:10 GMT https://community.esri.com/t5/arcgis-rest-apis-and-services-questions/how-to-post-update-to-a-feature-where-it-has-a/m-p/1522843#M4815 RichT7301 2024-08-16T13:17:10Z https://community.esri.com/t5/arcgis-rest-apis-and-services-questions/how-to-post-update-to-a-feature-where-it-has-a/m-p/1522865#M4816 <P>You could use <STRONG>Calculate</STRONG> instead.</P><P><A href="https://developers.arcgis.com/rest/services-reference/enterprise/calculate-feature-service-layer/" target="_blank">https://developers.arcgis.com/rest/services-reference/enterprise/calculate-feature-service-layer/</A></P><P>You'd have to format the post differently, but it can update any and all fields on the layer, and includes a <EM>where</EM> parameter. You could use it to update individual features, with "where=unique_field='some_value'" to restrict the calculation.</P> Fri, 16 Aug 2024 13:44:18 GMT https://community.esri.com/t5/arcgis-rest-apis-and-services-questions/how-to-post-update-to-a-feature-where-it-has-a/m-p/1522865#M4816 jcarlson 2024-08-16T13:44:18Z https://community.esri.com/t5/arcgis-rest-apis-and-services-questions/how-to-post-update-to-a-feature-where-it-has-a/m-p/1523043#M4817 <P>Interesting. Thank you Josh. I'll give that a try.</P> Fri, 16 Aug 2024 18:31:22 GMT https://community.esri.com/t5/arcgis-rest-apis-and-services-questions/how-to-post-update-to-a-feature-where-it-has-a/m-p/1523043#M4817 RichT7301 2024-08-16T18:31:22Z