most work on 328, needs testing

routes/baseRouter.js

@@ -499,6 +499,37 @@ router.get("/changeSetting", function(req, res, next) {
 	res.redirect(req.headers.referer);
 });
 
+router.get("/session-data", function(req, res, next) {
+	if (req.query.action && req.query.data) {
+		let action = req.query.action;
+		let data = req.query.data;
+
+		if (action == "add-rpc-favorite") {
+			if (!req.session.favoriteRpcCommands) {
+				req.session.favoriteRpcCommands = [];
+			}
+
+			if (!req.session.favoriteRpcCommands.includes(data)) {
+				req.session.favoriteRpcCommands.push(data);
+			}
+
+			req.session.favoriteRpcCommands.sort();
+		}
+
+		if (action == "remove-rpc-favorite") {
+			if (!req.session.favoriteRpcCommands) {
+				req.session.favoriteRpcCommands = [];
+			}
+
+			if (req.session.favoriteRpcCommands.includes(data)) {
+				req.session.favoriteRpcCommands.splice(req.session.favoriteRpcCommands.indexOf(data), 1);
+			}
+		}
+	}
+
+	res.redirect(req.headers.referer);
+});
+
 router.get("/user-settings", function(req, res, next) {
 	res.render("user-settings");
 
@@ -1425,6 +1456,18 @@ router.get("/rpc-browser", function(req, res, next) {
 		res.locals.gethelp = result;
 
 		if (req.query.method) {
+			if (!req.session.recentRpcCommands) {
+				req.session.recentRpcCommands = [];
+			}
+
+			if (!req.session.recentRpcCommands.includes(req.query.method)) {
+				req.session.recentRpcCommands.unshift(req.query.method);
+				
+				while (req.session.recentRpcCommands.length > 5) {
+					req.session.recentRpcCommands.pop();
+				}
+			}
+
 			res.locals.method = req.query.method;
 
 			coreApi.getRpcMethodHelp(req.query.method.trim()).then(function(result2) {

views/rpc-browser.pug

@@ -20,7 +20,14 @@ block content
 						.float-start
 							+sectionTitle(`Command: ${method}`)
 
-						.float-start.ms-3
+						.float-start.ms-2
+							if (session.favoriteRpcCommands && session.favoriteRpcCommands.includes(method))
+								a.me-2(href=`./session-data?action=remove-rpc-favorite&data=${method}`, title="Remove from Favorites", data-bs-toggle="tooltip")
+									i.fas.fa-star.text-warning
+							else
+								a.me-2(href=`./session-data?action=add-rpc-favorite&data=${method}`, title="Add as a Favorite", data-bs-toggle="tooltip")
+									i.far.fa-star.text-warning
+
 							span.small.text-muted (
 								a(href=`https://developer.bitcoin.org/reference/rpc/${method}.html`, target="_blank") Developer Docs
 									i.fas.fa-external-link-alt.ms-2
@@ -115,6 +122,30 @@ block content
 						.mb-2 This tool lists all RPC commands that your node makes publicly visible. Clicking on any command in the list will display additional information about that command and provide an interactive tool for submitting the command to your node.
 
 			.col-md-3
+				if (session.favoriteRpcCommands && session.favoriteRpcCommands.length > 0)
+					.clearfix
+						.float-start
+							i.fas.fa-star.me-2
+						.float-start
+							+sectionTitle(`Favorites (${session.favoriteRpcCommands.length.toLocaleString()})`)
+					+contentSection
+						ol.mb-0.ps-4
+							each methodX, methodIndex in session.favoriteRpcCommands
+								li
+									a(href=`./rpc-browser?method=${methodX}`, style=(methodX == method ? "font-weight: bold; font-style: italic;" : false)) #{methodX}
+
+				if (session.recentRpcCommands && session.recentRpcCommands.length > 0)
+					.clearfix
+						.float-start
+							i.fas.fa-history.me-2
+						.float-start
+							+sectionTitle(`Recent (${session.recentRpcCommands.length.toLocaleString()})`)
+					+contentSection
+						ol.mb-0.ps-4
+							each methodX, methodIndex in session.recentRpcCommands
+								li
+									a(href=`./rpc-browser?method=${methodX}`, style=(methodX == method ? "font-weight: bold; font-style: italic;" : false)) #{methodX}
+
 				each section, sectionIndex in gethelp
 					+contentSection(`${section.name} (${section.methods.length})`)
 						ol.mb-0.ps-4