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Command Line Reference

Traffic is fully usable from command-line, thanks to WP-CLI. You can set Traffic options, view past or current API calls and much more, without using a web browser.

  1. Viewing API calls - wp api tail
  2. Getting Traffic status - wp api status
  3. Managing main settings - wp api settings
  4. HTTP status codes - wp api statuscode
  5. Misc flags

Viewing API calls

Traffic lets you use command-line to view past and currents API calls. All is done via the wp api tail [<count>] [--direction=<direction>] [--filter=<filter>] [--format=<format>] [--col=<columns>] [--theme=<theme>] [--yes] command.

If you don't specify <count>, Traffic will launch an interactive monitoring session: it will display calls as soon as they occur on your site. To quit this session, hit CTRL+C.

If you specifiy a value for <count> between 1 to 60, Traffic will show you the count last calls occured on your site.

Note the tail command needs shared memory support on your server, both for web server and command-line configuration. If it's not already the case, you must activate the shmop PHP module.

Whether it's an interactive session or viewing past calls, you can filter what is displayed as follows:


To display only events having a specific direction, use --direction=<direction> parameter. <direction> can be both, inbound or outbound.

Field filters

You can filter displayed events on fields too. To do it, use the --filter=<filter> parameter. <filter> is a json string containing "field":"regexp" pairs. The available fields are: 'authority', 'scheme', 'endpoint', 'verb', 'code', 'message', 'size', 'latency' and 'site_id'.

Each regular expression must be surrounded by / like that: "authority":"/wordpress\.org/" and the whole filter must start with '{ and end with }' (see examples).

Columns count

By default, Traffic will output each call string on a 160 character basis. If you want to change it, use --col=<columns> where <columns> is an integer between 80 and 400.

Colors scheme

To change the default color scheme to something more eyes-saving, use --theme.

If you prefer, you can even suppress all colorization with the standard --no-color flag.


To see all "live" calls, type the following command:

pierre@dev:~$ wp api tail

To see only past GET calls on APIs, type the following command:

pierre@dev:~$ wp api tail 20 --filter='{"authority":"/wordpress\.org/", "verb":"/GET/"}'

Getting Traffic status

To get detailed status and operation mode, use the wp api status command.

Managing main settings

To toggle on/off main settings, use wp api settings <enable|disable> <inbound-analytics|outbound-analytics|auto-monitoring|smart-filter|metrics>.

Available settings

  • inbound-analytics: if activated, Traffic will analyze inbound API calls (the calls made by external sites or apps to your site).
  • outbound-analytics: if activated, Traffic will analyze outbound API calls (the calls made by your site to external services).
  • auto-monitoring: if activated, Traffic will silently start the features needed by live console.
  • smart-filter: if activated, Traffic will not take into account the calls that generate "noise" in monitoring.
  • metrics: if activated, Traffic will collate metrics.


To disable smart filtering without confirmation prompt, type the following command:

wp api settings disable smart-filter --yes

HTTP status codes

Traffic exposes a simple command to let you know all the HTTP status codes it handles.

To list these status codes, use wp api httpstatus list.

Misc flags

For most commands, Traffic lets you use the following flags:

  • --yes: automatically answer "yes" when a question is prompted during the command execution.
  • --stdout: outputs a clean STDOUT string so you can pipe or store result of command execution.

It's not mandatory to use --stdout when using --format=count or --format=ids: in such cases --stdout is assumed.

Note Traffic sets exit code so you can use $? to write scripts.
To know the meaning of Traffic exit codes, just use the command wp api exitcode list.


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Support & Help

I’ll be glad to help you if you encounter issues with this plugin. Just use the support section of the WordPress directory.