[NEW] Added endpoint to retrieve mentions of a channel

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

@@ -814,6 +814,39 @@ RocketChat.API.v1.addRoute('channels.unarchive', { authRequired: true }, {
 	}
 });
 
+RocketChat.API.v1.addRoute('channels.getAllUserMentionsByChannel', { authRequired: true }, {
+	get() {
+		const { roomId } = this.requestParams();
+		const { offset, count } = this.getPaginationItems();
+		const { sort } = this.parseJsonQuery();
+
+		if (!roomId) {
+			return RocketChat.API.v1.failure('The request param "roomId" is required');
+		}
+
+		const mentions = Meteor.runAsUser(this.userId, () => Meteor.call('getUserMentionsByChannel', {
+			roomId,
+			options: {
+				sort: sort ? sort : { ts: 1 },
+				skip: offset,
+				limit: count
+			}
+		}));
+
+		const allMentions = Meteor.runAsUser(this.userId, () => Meteor.call('getUserMentionsByChannel', {
+			roomId,
+			options: {}
+		}));
+
+		return RocketChat.API.v1.success({
+			mentions,
+			count: mentions.length,
+			offset,
+			total: allMentions.length
+		});
+	}
+});
+
 RocketChat.API.v1.addRoute('channels.notifications', { authRequired: true }, {
 	get() {
 		const { roomId } = this.requestParams();

packages/rocketchat-mentions/package.js

@@ -12,5 +12,6 @@ Package.onUse(function(api) {
 	]);
 
 	api.addFiles('server/server.js', 'server');
+	api.addFiles('server/methods/getUserMentionsByChannel.js', 'server');
 	api.addFiles('client/client.js', 'client');
 });

packages/rocketchat-mentions/server/methods/getUserMentionsByChannel.js

@@ -0,0 +1,19 @@
+Meteor.methods({
+	getUserMentionsByChannel({ roomId, options }) {
+		check(roomId, String);
+
+		if (!Meteor.userId()) {
+			throw new Meteor.Error('error-invalid-user', 'Invalid user', { method: 'getUserMentionsByChannel' });
+		}
+
+		const room = RocketChat.models.Rooms.findOneById(roomId);
+
+		if (!room) {
+			throw new Meteor.Error('error-invalid-room', 'Invalid room', { method: 'getUserMentionsByChannel' });
+		}
+
+		const user = RocketChat.models.Users.findOneById(Meteor.userId());
+
+		return RocketChat.models.Messages.findVisibleByMentionAndRoomId(user.username, roomId, options).fetch();
+	}
+});

tests/end-to-end/api/02-channels.js

@@ -625,4 +625,24 @@ describe('[Channels]', function() {
 				.end(done);
 		});
 	});
+
+	describe('/channels.getAllUserMentionsByChannel', () => {
+		it('should return and array of mentions by channel', (done) => {
+			request.get(api('channels.getAllUserMentionsByChannel'))
+				.set(credentials)
+				.query({
+					roomId: channel._id
+				})
+				.expect('Content-Type', 'application/json')
+				.expect(200)
+				.expect((res) => {
+					expect(res.body).to.have.property('success', true);
+					expect(res.body).to.have.property('mentions').and.to.be.an('array');
+					expect(res.body).to.have.property('count');
+					expect(res.body).to.have.property('offset');
+					expect(res.body).to.have.property('total');
+				})
+				.end(done);
+		});
+	});
 });