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Fiddler settings API reference

You can enable and disable Fiddler network tracing on your devkit using this REST API.

Determine if Fiddler tracing is enabled

Request

You can check to see if Fiddler tracing is enabled on the device using the following request.

Method Request URI
GET /ext/fiddler

URI parameters

  • None

Request headers

  • None

Request body

  • None

Response

  • JSON bool property IsProxyEnabled which specifiers whether the proxy is enabled or not.

Status code

This API has the following expected status codes.

HTTP status code Description
200 Success
4XX Error codes
5XX Error codes

Enable Fiddler tracing

Request

You can enable Fiddler tracing for the devkit using the following request. Note that the device must be restarted before this takes effect.

Method Request URI
POST /ext/fiddler

URI parameters

You can specify the following additional parameters on the request URI:

URI parameter Description
proxyAddress The IP address or hostname of the device running Fiddler
proxyPort The port which Fiddler is using for monitoring traffic. Defaults to 8888
updateCert (optional) A boolean value indicating if the root Fiddler cert is provided. This must be true if Fiddler has never been configured on this devkit or was configured for a different host.

Request headers

  • None

Request body

  • None if updateCert is false or not provided. Multi-part conforming http body containing the FiddlerRoot.cer file otherwise.

Response

  • None

Status code

This API has the following expected status codes.

HTTP status code Description
204 The request to enable Fiddler was accepted. Fiddler will be enabled the next time the device reboots.
4XX Error codes
5XX Error codes

Disable Fiddler tracing on the devkit

Request

You can disable Fiddler tracing on the device using the following request. Note that the device must be restarted before this takes effect.

Method Request URI
DELETE /ext/fiddler

URI parameters

  • None

Request headers

  • None

Request body

  • None

Response

  • None

Status code

This API has the following expected status codes.

HTTP status code Description
204 The request to disable Fiddler tracing was successful. Tracing will be disabled on the next reboot of the device.
4XX Error codes
5XX Error codes

Available device families

  • Windows Xbox

Credits Microsoft