[NEW] Add /roles.list REST endpoint to retrieve all server roles (#11500)

packages/rocketchat-api/package.js

@@ -31,6 +31,7 @@ Package.onUse(function(api) {
 
 	//Add v1 routes
 	api.addFiles('server/v1/channels.js', 'server');
+	api.addFiles('server/v1/roles.js', 'server');
 	api.addFiles('server/v1/rooms.js', 'server');
 	api.addFiles('server/v1/subscriptions.js', 'server');
 	api.addFiles('server/v1/chat.js', 'server');

packages/rocketchat-api/server/v1/roles.js

+RocketChat.API.v1.addRoute('roles.list', { authRequired: true }, {
+	get() {
+		const roles = RocketChat.models.Roles.find({}, { fields: { _updatedAt: 0 } }).fetch();
+
+		return RocketChat.API.v1.success({ roles });
+	}
+});

tests/end-to-end/api/13-roles.js

+/* eslint-env mocha */
+/* globals expect */
+
+import {getCredentials, api, request, credentials } from '../../data/api-data.js';
+
+describe('[Roles]', function() {
+	this.retries(0);
+
+	before(done => getCredentials(done));
+
+	describe('GET [/roles]', () => {
+		it('should return all roles', (done) => {
+			request.get(api('roles.list'))
+				.set(credentials)
+				.expect(200)
+				.expect((res) => {
+					expect(res.body).to.have.property('success', true);
+					expect(res.body).to.have.property('roles').and.to.be.an('array');
+				})
+				.end(done);
+		});
+	});
+});