Download String in Geocortex Workflow

Mark Norbury

10. April 2018 23:22

In Essentials Workflow Designer you can add a DownloadString activity to a workflow.  There doesn't appear to be the same thing in Geocortex Workflow 5, so is there a way to achieve the same thing??  What I want to do is download some imagery from an image service by sending a /query operation to it like this:   imageserviceURL/ImageServer/query?where=..?f=json then retrieve the result as a string that I can parse.

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  Ryan Cooney

  11. April 2018 03:47

  Hi Mark,

   

  You can use the Send Web Request activity to do this. There are a few ways to use this activity, but since you are looking to parse the response as JSON, I would suggest setting the Expect input to "json". Then the json output of the activity will contain the parsed response.

   

  --Ryan

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  Mark Norbury

  11. April 2018 18:04

  Thanks, this has worked. I've set the 'Method' parameter to GET, the 'Expected' to json, and put the whole URL in the 'Url' like this: ="http://URL/arcgis/rest/services/ImageServiceName/ImageServer/query?where=Category%3D1&objectIds=&time=&geometry=%7Bxmin:" + $areaOfInterest.result.xmin + ",xmax:" + $areaOfInterest.result.xmax + ",ymin:"+ $areaOfInterest.result.ymin + ",ymax:" + $areaOfInterest.result.ymax + "%7D&geometryType=esriGeometryEnvelope&inSR=&spatialRel=esriSpatialRelIntersects&relationParam=&outFields=DataSource,LowPS&returnGeometry=false&outSR=&returnIdsOnly=false&returnCountOnly=false&pixelSize=&orderByFields=&groupByFieldsForStatistics=&outStatistics=&returnDistinctValues=false&f=json"

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