The node pico engine includes a UI consisting of two web pages,single page applications:

1. the My Picos page which lets you see a visual representation of your picos, including their parent/child relationships and subscriptions
2. the Engine Rulesets which lets you see the list of rulesets registered with the engine

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Pico Engine UI -- Subscriptions tab

Pico Engine UI -- Testing tab

*Using the pico engine directly

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http://localhost:8080/api/engine-version will allow you to know which version of the pico engine you are running. For example,  {"version":"0.749.20"}

http://localhost:8080/api/ownerroot-eci will give you the secret event channel identifier (ECI) for your owner the engine's root pico, so that you can begin interacting with it programmatically. For example, {"eci":"cj12o992p0001lnddcx1owv2sPUYkpCdQF61NXqFDv3scWL"}

The pico engine installs two rulesets in the owner pico : io.picolabs.picowrangler and io.picolabs.visual_params. The first of these is required in every pico. The second is expected by the UI to be installed in every pico.

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To install one of your registered rulesets in a pico, make use the wrangler ruleset by making a request like http://localhost:8080/sky/event/<ECI>/<EID>/picowrangler/newinstall_rulesets_rulesetrequested?rid=<RID> including an ECI for the pico, an event identifier (EID) or your choice, and the ruleset identifier (RID) of your ruleset.

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