Proxy settings

Dev Proxy comes with several settings that you can use to control how the proxy should run.

You can configure these settings by setting them in the devproxyrc.json file, located in the proxy installation folder, or by setting them at run time through command line options.

The following table describes the settings.

Setting	Description	Command-line option	Allowed values	Default value
asSystemProxy	Whether to register Dev Proxy as the system proxy on startup. When set to true requires installCert to be set to true	--as-system-proxy	true, false	true
installCert	Whether to install the root certificate	--install-cert	true, false	true
ipAddress	The IP address for the proxy to bind to	--ip-address <ipAddress>	IPv4 address	127.0.0.1
labelMode	Set the console output label mode	n/a	text, icon, nerdFont	text
logLevel	Level of messages to log	--log-level <loglevel>	debug, information, warning, error	information
newVersionNotification	Whether to notify about new versions	n/a	none, stable, beta	stable
n/a	Skip the first run experience (don't trust certificate on macOS)	--no-first-run	n/a	n/a
port	The port for the proxy server to listen on	-p, --port <port>	integer	8000
rate	The percentage of chance that proxy fails a request. Set to 0 to pass all requests to APIs, and to 100 to fail all requests.	-f, --failure-rate <failurerate>	0..100	50
record	Use this option to record all request logs	--record	n/a	n/a
urlsToWatch	List of URLs that proxy should intercept	-u, --urls-to-watch <urlsToWatch>	Absolute URL (can contain wildcards) for example, "https://api.contoso.com/*"	See devproxyrc file
n/a	The IDs of processes to watch for requests	--watch-pids <pids>	integer	n/a
n/a	The names of processes to watch for requests	--watch-process-names <processNames>	string	n/a