REST API hangs on Parameters call

2 posts, 0 answers
  1. John
    John avatar
    41 posts
    Member since:
    Jun 2013

    Posted 13 Aug Link to this post


    I just installed the latest R2 reporting verson and set up an empty ASP.NET app with the standard report controller, and one simple report that I created in the Stand Alone designer (trdp).

    I am calling the REST API using PostMan.

    The call to formats works, as does clients, and I get a clientId

    However, the call to /parameters or /instances hangs... it doesnt even show up in fiddler (whereas the other calls do).

    What could be wrong?

    POST http://localhost/ProjectCentral.Reporting/api/reports/clients


      "clientId": "175035-70fc"




    POST http://localhost:ProjectCentral.Reporting/api/reports/clients/173346-5ee7/parameters

      "report": "RDCertificate.trdp",
      "parameterValues": {
        "ProjectNumber": 2050122


    I am deploying to my local IIS Server on Windows 10 Anniversary Edition, 64 bit. Integrated App Pool running as Network Service, with access to the cache and reports folder (I see the cache files being written).




  2. Stef
    Stef avatar
    2930 posts

    Posted 15 Aug Link to this post

    Hello John,

    Please double-check if you are using the correct clientId on the request for parameters and the consecutive requests for instance and document. An example of a Javascript client of the Reporting REST service is available here.

    The recommended troubleshooting approach for the HTML5 Viewer is to use Fiddler or other proxy tool to check the requests, their responses and statuses. With Fiddler, information about requests and responses content can be seen in Fiddler - Inspectors - Request/Response - Raw tabs. This will let you check requests to the Reporting REST service and if the URLs are correct, if relative paths are resolved correctly.

    In case the purpose of the code is to get a report rendered in a selected format from the server, please check if using a ReportProcessor fits your requirements - Exporting Report Programmatically.

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