Mostly about remote controlling via network requests

Resources

What	Type	Link
Roku Docs - Start Page	Docs	Link
Roku Docs - External Control Protocol (ECP)	Docs	Link
Roku Remote Tool (and Tester)	Web App	Link
remoku (online remote)	Web App	Link

Discovery

Discovery uses SSDP (Simple Service Discovery Protocol). This uses a few special protocols, most notably UPnP which is usually a router feature, and special packet types, like M-SEARCH instead of HTTP.

Because it uses different packet types (such as M-SEARCH), you can't generate a search request in pure browser client side code. You would need something like NodeJS. [A, B].

Theoretically, you could scan the entire IP range and make HTTP requests to an HTTP endpoint until you get a successful response back, but that is highly impractical.

Node Clients

As mentioned above, discovery, as well as some other Roku features, require using special network packets. As such, multiple people have built out NodeJS client libraries, which in turn usually use node-ssdp (link) for generating the packets.

Some libraries:

• node-roku-client
• nodeku
• node-roku
• rokujs