transparently capture web rest api requests and responses

4 posts, 0 answers
  1. John
    John avatar
    15 posts
    Member since:
    Dec 2012

    Posted 23 Jul 2014 Link to this post

    I'm testing a .net service (asp mvc iis) that makes Rest API calls in https.
    I would like to
    1. decrypt each request and response and copy both onto disk for later searching.
    2. I don't want to disrupt traffic. I want this to be transparent to the .net service and rest api service provider

    Is there an extension that does this? If not, can I get pointers on what I can do to get started.

    I've just completed configuring the machine.config file so that fiddler can capture all outgoing rest api requests.
  2. John
    John avatar
    15 posts
    Member since:
    Dec 2012

    Posted 24 Jul 2014 Link to this post

  3. John
    John avatar
    7 posts
    Member since:
    Aug 2013

    Posted 17 Aug 2016 Link to this post

    Hi John, John also here.

    I have a similar quest. Not a .NET application though - but an old Delphi desktop app that has been retrofitted to make a few REST calls. I cannot figure out how to get Fiddler to capture what comes off the client. It has SOAP calls that are captured just fine - but not the REST calls. Did you find out anything on this? Thanks in advance.

  4. Tsviatko Yovtchev
    Tsviatko Yovtchev avatar
    549 posts

    Posted 24 Aug 2016 Link to this post


    Jungwoo, I am not aware of an extension doing all that. You can do it manually by setting Fiddler as reverse proxy to capture the incoming traffic, too and then export sessions as SAZ files.

    John, I am not sure I completely understand your situation. Were you successful in configuring Fiddler as a proxy to your Delphi app? I am not really an expert in Delphi but what is the chance that your app uses different APIs to make the SOAP and REST calls and the REST calls API doesn't use Fiddler as a proxy?

    Tsviatko Yovtchev
    Telerik by Progress
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