Don't look up user details in this api

services/contacts/app/coffee/HttpController.coffee

@@ -1,7 +1,5 @@
 ContactManager = require "./ContactManager"
-WebApiManager = require "./WebApiManager"
 logger = require "logger-sharelatex"
-async = require "async"
 
 module.exports = HttpController =
 	addContact: (req, res, next) ->
@@ -45,17 +43,11 @@ module.exports = HttpController =
 
 			HttpController._sortContacts contacts
 			contacts = contacts.slice(0, limit)
+			contact_ids = contacts.map (contact) -> contact.user_id
 
-			async.mapLimit contacts, 5,
-				(contact, cb) ->
-					WebApiManager.getUserDetails contact.user_id, (error, user) ->
-						return cb(error) if error?
-						cb null, HttpController._formatUser user
-				(error, users) ->
-					return next(error) if error?
-					res.status(200).send({
-						contacts: users
-					})
+			res.status(200).send({
+				contact_ids: contact_ids
+			})
 	
 	_sortContacts: (contacts) ->
 		contacts.sort (a, b) ->
@@ -72,11 +64,3 @@ module.exports = HttpController =
 					return 1
 				else
 					return 0
-	
-	_formatUser: (user) ->
-		return {
-			id: user._id
-			email: user.email
-			first_name: user.first_name
-			last_name: user.last_name
-		}

services/contacts/test/unit/coffee/HttpControllerTests.coffee

@@ -9,7 +9,6 @@ describe "HttpController", ->
 	beforeEach ->
 		@HttpController = SandboxedModule.require modulePath, requires:
 			"./ContactManager": @ContactManager = {}
-			"./WebApiManager": @WebApiManager = {}
 			"logger-sharelatex": @logger = { log: sinon.stub() }
 		@user_id = "mock-user-id"
 		@contact_id = "mock-contact-id"
@@ -67,15 +66,7 @@ describe "HttpController", ->
 				"user-id-2": { n: 4, ts: new Date(now) }
 				"user-id-3": { n: 2, ts: new Date(now - 1000) }
 			}
-			@user_details = {
-				"user-id-1": { _id: "user-id-1", email: "joe@example.com", first_name: "Joe", last_name: "Example", extra: "foo" }
-				"user-id-2": { _id: "user-id-2", email: "jane@example.com", first_name: "Sarah", last_name: "Example", extra: "foo" }
-				"user-id-3": { _id: "user-id-3", email: "sam@example.com", first_name: "Sam", last_name: "Example", extra: "foo" }
-			}
 			@ContactManager.getContacts = sinon.stub().callsArgWith(1, null, @contacts)
-			@WebApiManager.getUserDetails = (user_id, callback = (error, user) ->) =>
-				callback null, @user_details[user_id]
-			sinon.spy @WebApiManager, "getUserDetails"
 
 		describe "normally", ->
 			beforeEach ->
@@ -86,19 +77,13 @@ describe "HttpController", ->
 					.calledWith(@user_id)
 					.should.equal true
 			
-			it "should look up each contact in web for their details", ->
-				for user_id, data of @contacts
-					@WebApiManager.getUserDetails
-						.calledWith(user_id)
-						.should.equal true
-			
 			it "should return a sorted list of contacts by count and timestamp", ->
 				@res.send
 					.calledWith({
-						contacts: [
-							{ id: "user-id-2", email: "jane@example.com", first_name: "Sarah", last_name: "Example" }
-							{ id: "user-id-1", email: "joe@example.com", first_name: "Joe", last_name: "Example" }
-							{ id: "user-id-3", email: "sam@example.com", first_name: "Sam", last_name: "Example" }
+						contact_ids: [
+							"user-id-2"
+							"user-id-1"
+							"user-id-3"
 						]
 					})
 					.should.equal true
@@ -112,9 +97,9 @@ describe "HttpController", ->
 			it "should return the most commonly used contacts up to the limit", ->
 				@res.send
 					.calledWith({
-						contacts: [
-							{ id: "user-id-2", email: "jane@example.com", first_name: "Sarah", last_name: "Example" }
-							{ id: "user-id-1", email: "joe@example.com", first_name: "Joe", last_name: "Example" }
+						contact_ids: [
+							"user-id-2"
+							"user-id-1"
 						]
 					})
 					.should.equal true
@@ -127,7 +112,7 @@ describe "HttpController", ->
 			it "should return an empty list", ->
 				@res.send
 					.calledWith({
-						contacts: []
+						contact_ids: []
 					})
 					.should.equal true