diff --git a/universal-login-relayer/lib/config/relayer.js b/universal-login-relayer/lib/config/relayer.ts
similarity index 66%
rename from universal-login-relayer/lib/config/relayer.js
rename to universal-login-relayer/lib/config/relayer.ts
index cf494afac3..709f128bc6 100644
--- a/universal-login-relayer/lib/config/relayer.js
+++ b/universal-login-relayer/lib/config/relayer.ts
@@ -1,13 +1,16 @@
 require('dotenv').config();
 
-module.exports = Object.freeze({
+const config =  Object.freeze({
   legacyENS: true,
   jsonRpcUrl: process.env.JSON_RPC_URL,
   port: process.env.PORT,
   privateKey: process.env.PRIVATE_KEY,
-  chainSpec: {
+  chainSpec: Object.freeze({
     ensAddress: process.env.ENS_ADDRESS,
     chainId: 0,
-  },
+  }),
   ensRegistrars: [process.env.ENS_DOMAIN_1, process.env.ENS_DOMAIN_2, process.env.ENS_DOMAIN_3],
 });
+
+export type Config = typeof config;
+export type ChainSpecConfig = Config['chainSpec'];
\ No newline at end of file
diff --git a/universal-login-relayer/lib/middlewares/async_middleware.js b/universal-login-relayer/lib/middlewares/async_middleware.js
deleted file mode 100644
index f08ab1d805..0000000000
--- a/universal-login-relayer/lib/middlewares/async_middleware.js
+++ /dev/null
@@ -1,7 +0,0 @@
-const asyncMiddleware = (fn) =>
-  (req, res, next) => {
-    Promise.resolve(fn(req, res, next))
-      .catch(next);
-  };
-
-export default asyncMiddleware;
diff --git a/universal-login-relayer/lib/middlewares/async_middleware.ts b/universal-login-relayer/lib/middlewares/async_middleware.ts
new file mode 100644
index 0000000000..2368be342e
--- /dev/null
+++ b/universal-login-relayer/lib/middlewares/async_middleware.ts
@@ -0,0 +1,9 @@
+import {Request, Response, NextFunction} from 'express';
+
+const asyncMiddleware = (fn : Function) =>
+  (req : Request, res : Response, next : NextFunction) => {
+    Promise.resolve(fn(req, res, next))
+      .catch(next);
+  };
+
+export default asyncMiddleware;
diff --git a/universal-login-relayer/lib/routes/authorisation.js b/universal-login-relayer/lib/routes/authorisation.ts
similarity index 63%
rename from universal-login-relayer/lib/routes/authorisation.js
rename to universal-login-relayer/lib/routes/authorisation.ts
index b697462843..a8e4bba478 100644
--- a/universal-login-relayer/lib/routes/authorisation.js
+++ b/universal-login-relayer/lib/routes/authorisation.ts
@@ -1,26 +1,25 @@
-import express from 'express';
+import {Router, Request, Response} from 'express';
 import asyncMiddleware from '../middlewares/async_middleware';
 import geoip from 'geoip-lite';
 import moment from 'moment';
 
-export const request = (authorisationService) => async (req, res) => {
-  const ipAddress = req.headers['x-forwarded-for'] || req.ip;
+export const request = (authorisationService : any) => async (req : Request, res : Response) => {
+  const ipAddress : string = req.headers['x-forwarded-for'] as string || req.ip;
+  const {platform, os, browser} = req.useragent || {platform: '', os: '', browser: ''};
   const deviceInfo = {
     ipAddress,
-    name: req.useragent.platform,
+    name: platform,
     city: geoip.lookup(ipAddress) ? geoip.lookup(ipAddress).city : 'unknown',
-    os: req.useragent.os,
-    browser: req.useragent.browser,
+    os,
+    browser,
     time: moment().format('h:mm'),
   };
   const requestAuthorisation = {...req.body, deviceInfo};
   await authorisationService.addRequest(requestAuthorisation);
-  res.status(201)
-    .type('json')
-    .send(JSON.stringify());
+  res.status(201).send();
 };
 
-export const getPending = (authorisationService) => async (req, res) => {
+export const getPending = (authorisationService : any) => async (req : Request, res : Response) => {
   const {walletContractAddress} = req.params;
   const response = await authorisationService.getPendingAuthorisations(walletContractAddress);
   res.status(200)
@@ -28,7 +27,7 @@ export const getPending = (authorisationService) => async (req, res) => {
     .send(JSON.stringify({response}));
 };
 
-export const denyRequest = (authorisationService) => async (req, res) => {
+export const denyRequest = (authorisationService : any) => async (req : Request, res : Response) => {
   const {walletContractAddress} = req.params;
   const {key} = req.body;
   const response = await authorisationService.removeRequest(walletContractAddress, key);
@@ -37,8 +36,8 @@ export const denyRequest = (authorisationService) => async (req, res) => {
     .send(JSON.stringify({response}));
 };
 
-export default (authorisationService) => {
-  const router = new express.Router();
+export default (authorisationService : any) => {
+  const router = Router();
 
   router.post('/',
     asyncMiddleware(request(authorisationService)));
diff --git a/universal-login-relayer/lib/routes/config.js b/universal-login-relayer/lib/routes/config.js
deleted file mode 100644
index 3fb8269d86..0000000000
--- a/universal-login-relayer/lib/routes/config.js
+++ /dev/null
@@ -1,17 +0,0 @@
-import express from 'express';
-import asyncMiddleware from '../middlewares/async_middleware';
-
-export const network = (config) => async (req, res) => {
-  res.status(200)
-    .type('json')
-    .send(JSON.stringify({config}));
-};
-
-export default (config) => {
-  const router = new express.Router();
-
-  router.get('/',
-    asyncMiddleware(network(config)));
-
-  return router;
-};
diff --git a/universal-login-relayer/lib/routes/config.ts b/universal-login-relayer/lib/routes/config.ts
new file mode 100644
index 0000000000..b5b2c554d3
--- /dev/null
+++ b/universal-login-relayer/lib/routes/config.ts
@@ -0,0 +1,20 @@
+import {Router, Request, Response} from 'express';
+import asyncMiddleware from '../middlewares/async_middleware';
+import {ChainSpecConfig} from '../config/relayer';
+
+
+
+export const network = (config : ChainSpecConfig) => async (req : Request, res : Response) => {
+  res.status(200)
+    .type('json')
+    .send(JSON.stringify({config}));
+};
+
+export default (config : ChainSpecConfig) => {
+  const router = Router();
+
+  router.get('/',
+    asyncMiddleware(network(config)));
+
+  return router;
+};
diff --git a/universal-login-relayer/lib/routes/wallet.js b/universal-login-relayer/lib/routes/wallet.ts
similarity index 65%
rename from universal-login-relayer/lib/routes/wallet.js
rename to universal-login-relayer/lib/routes/wallet.ts
index 1a4ab89917..049e358c33 100644
--- a/universal-login-relayer/lib/routes/wallet.js
+++ b/universal-login-relayer/lib/routes/wallet.ts
@@ -1,7 +1,7 @@
-import express from 'express';
+import {Router, Request, Response, NextFunction} from 'express';
 import asyncMiddleware from '../middlewares/async_middleware';
 
-export const create = (walletContractService) => async (req, res, next) => {
+export const create = (walletContractService : any) => async (req : Request, res : Response, next : NextFunction) => {
   const {managementKey, ensName} = req.body;
   try {
     const transaction = await walletContractService.create(managementKey, ensName);
@@ -13,7 +13,7 @@ export const create = (walletContractService) => async (req, res, next) => {
   }
 };
 
-export const execution = (walletContractService) => async (req, res, next) => {
+export const execution = (walletContractService : any) => async (req : Request, res : Response, next : NextFunction) => {
   try {
     const transaction = await walletContractService.executeSigned(req.body);
     res.status(201)
@@ -24,8 +24,8 @@ export const execution = (walletContractService) => async (req, res, next) => {
   }
 };
 
-export default (walletContractService) => {
-  const router = new express.Router();
+export default (walletContractService : any) => {
+  const router = Router();
 
   router.post('/',
     asyncMiddleware(create(walletContractService)));
diff --git a/universal-login-relayer/package.json b/universal-login-relayer/package.json
index fe7fe428da..3ce120bd45 100644
--- a/universal-login-relayer/package.json
+++ b/universal-login-relayer/package.json
@@ -5,6 +5,8 @@
   "main": "build/index.js",
   "types": "./types.d.ts",
   "dependencies": {
+    "@types/express": "^4.16.1",
+    "@types/geoip-lite": "^1.1.29",
     "babel-register": "^6.26.0",
     "body-parser": "^1.18.3",
     "cors": "^2.8.4",
@@ -18,8 +20,8 @@
     "knex": "^0.16.3",
     "moment": "^2.22.2",
     "pg": "^7.7.1",
-    "universal-login-contracts": "^0.1.4",
-    "universal-login-commons": "^1.0.0"
+    "universal-login-commons": "^1.0.0",
+    "universal-login-contracts": "^0.1.4"
   },
   "scripts": {
     "test": "NODE_ENV=test mocha -r ts-node/register test -t 10000 \"test/**/*.{js,ts}\"",
@@ -41,17 +43,18 @@
     "@types/chai-as-promised": "^7.1.0",
     "@types/chai-http": "^3.0.5",
     "@types/chai-string": "^1.4.1",
+    "@types/express-useragent": "^0.2.21",
     "@types/mocha": "^5.2.5",
     "chai": "^4.1.2",
     "chai-as-promised": "^7.1.1",
     "chai-http": "^4.0.0",
     "chai-string": "^1.4.0",
-    "sinon": "^6.3.1",
-    "sinon-chai": "^3.2.0",
     "ethereum-waffle": "2.0.5",
     "ganache-core": "^2.2.1",
     "mocha": "^5.2.0",
     "node-fetch": "^2.2.0",
+    "sinon": "^6.3.1",
+    "sinon-chai": "^3.2.0",
     "solium": "^1.1.8",
     "ts-node": "^8.0.2",
     "tslint": "^5.12.1",
diff --git a/yarn.lock b/yarn.lock
index 60e67e6a8e..78d887bad3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -208,6 +208,14 @@
   dependencies:
     "@types/node" "*"
 
+"@types/body-parser@*":
+  version "1.17.0"
+  resolved "https://registry.yarnpkg.com/@types/body-parser/-/body-parser-1.17.0.tgz#9f5c9d9bd04bb54be32d5eb9fc0d8c974e6cf58c"
+  integrity sha512-a2+YeUjPkztKJu5aIF2yArYFQQp8d51wZ7DavSHjFuY1mqVgidGyzEQ41JIVNy82fXj8yPgy2vJmfIywgESW6w==
+  dependencies:
+    "@types/connect" "*"
+    "@types/node" "*"
+
 "@types/chai-as-promised@^7.1.0":
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/@types/chai-as-promised/-/chai-as-promised-7.1.0.tgz#010b04cde78eacfb6e72bfddb3e58fe23c2e78b9"
@@ -248,6 +256,13 @@
   dependencies:
     commander "*"
 
+"@types/connect@*":
+  version "3.4.32"
+  resolved "https://registry.yarnpkg.com/@types/connect/-/connect-3.4.32.tgz#aa0e9616b9435ccad02bc52b5b454ffc2c70ba28"
+  integrity sha512-4r8qa0quOvh7lGD0pre62CAb1oni1OO6ecJLGCezTmhQ8Fz50Arx9RUszryR8KlgK6avuSXvviL6yWyViQABOg==
+  dependencies:
+    "@types/node" "*"
+
 "@types/cookiejar@*":
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/@types/cookiejar/-/cookiejar-2.1.0.tgz#4b7daf2c51696cfc70b942c11690528229d1a1ce"
@@ -275,14 +290,48 @@
     "@types/cheerio" "*"
     "@types/react" "*"
 
+"@types/express-serve-static-core@*":
+  version "4.16.2"
+  resolved "https://registry.yarnpkg.com/@types/express-serve-static-core/-/express-serve-static-core-4.16.2.tgz#5ee8a22e602005be6767df6b2cba9879df3f75aa"
+  integrity sha512-qgc8tjnDrc789rAQed8NoiFLV5VGcItA4yWNFphqGU0RcuuQngD00g3LHhWIK3HQ2XeDgVCmlNPDlqi3fWBHnQ==
+  dependencies:
+    "@types/node" "*"
+    "@types/range-parser" "*"
+
+"@types/express-useragent@^0.2.21":
+  version "0.2.21"
+  resolved "https://registry.yarnpkg.com/@types/express-useragent/-/express-useragent-0.2.21.tgz#dbbc684e15aa5dfeef1118eabcbc0084716be59f"
+  integrity sha512-xVZ9GVsrYa5PFghnb9UGiWR0ZOrAWhxSwbTVhqI1tMGU0I1TnAvzCQi15P29GWhc8mR384IUEINlhrPy0mz1Pg==
+  dependencies:
+    "@types/express" "*"
+
+"@types/express@*", "@types/express@^4.16.1":
+  version "4.16.1"
+  resolved "https://registry.yarnpkg.com/@types/express/-/express-4.16.1.tgz#d756bd1a85c34d87eaf44c888bad27ba8a4b7cf0"
+  integrity sha512-V0clmJow23WeyblmACoxbHBu2JKlE5TiIme6Lem14FnPW9gsttyHtk6wq7njcdIWH1njAaFgR8gW09lgY98gQg==
+  dependencies:
+    "@types/body-parser" "*"
+    "@types/express-serve-static-core" "*"
+    "@types/serve-static" "*"
+
 "@types/fbemitter@^2.0.32":
   version "2.0.32"
   resolved "https://registry.yarnpkg.com/@types/fbemitter/-/fbemitter-2.0.32.tgz#8ed204da0f54e9c8eaec31b1eec91e25132d082c"
 
+"@types/geoip-lite@^1.1.29":
+  version "1.1.29"
+  resolved "https://registry.yarnpkg.com/@types/geoip-lite/-/geoip-lite-1.1.29.tgz#c2c4cecc49d988d8816b8be006c08f211103351b"
+  integrity sha1-wsTOzEnZiNiBa4vgBsCPIREDNRs=
+
 "@types/history@*":
   version "4.7.2"
   resolved "https://registry.yarnpkg.com/@types/history/-/history-4.7.2.tgz#0e670ea254d559241b6eeb3894f8754991e73220"
 
+"@types/mime@*":
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/@types/mime/-/mime-2.0.1.tgz#dc488842312a7f075149312905b5e3c0b054c79d"
+  integrity sha512-FwI9gX75FgVBJ7ywgnq/P7tw+/o1GUbtP0KzbtusLigAOgIgNISRK0ZPl4qertvXSIE8YbsVJueQ90cDt9YYyw==
+
 "@types/mocha@^5.2.5":
   version "5.2.5"
   resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-5.2.5.tgz#8a4accfc403c124a0bafe8a9fc61a05ec1032073"
@@ -306,6 +355,11 @@
   version "15.5.8"
   resolved "https://registry.yarnpkg.com/@types/prop-types/-/prop-types-15.5.8.tgz#8ae4e0ea205fe95c3901a5a1df7f66495e3a56ce"
 
+"@types/range-parser@*":
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/@types/range-parser/-/range-parser-1.2.3.tgz#7ee330ba7caafb98090bece86a5ee44115904c2c"
+  integrity sha512-ewFXqrQHlFsgc09MK5jP5iR7vumV/BYayNC6PgJO2LPe8vrnNFyjQjSppfEngITi0qvfKtzFvgKymGheFM9UOA==
+
 "@types/react-dom@^16.8.0":
   version "16.8.0"
   resolved "https://registry.yarnpkg.com/@types/react-dom/-/react-dom-16.8.0.tgz#c565f43f9d2ec911f9e0b8f3b74e25e67879aa3f"
@@ -338,6 +392,14 @@
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/@types/semver/-/semver-5.5.0.tgz#146c2a29ee7d3bae4bf2fcb274636e264c813c45"
 
+"@types/serve-static@*":
+  version "1.13.2"
+  resolved "https://registry.yarnpkg.com/@types/serve-static/-/serve-static-1.13.2.tgz#f5ac4d7a6420a99a6a45af4719f4dcd8cd907a48"
+  integrity sha512-/BZ4QRLpH/bNYgZgwhKEh+5AsboDBcUdlBYgzoLX0fpj3Y2gp6EApyOlM3bK53wQS/OE1SrdSYBAbux2D1528Q==
+  dependencies:
+    "@types/express-serve-static-core" "*"
+    "@types/mime" "*"
+
 "@types/sinon-chai@^3.2.2":
   version "3.2.2"
   resolved "https://registry.yarnpkg.com/@types/sinon-chai/-/sinon-chai-3.2.2.tgz#5cfdbda70bae30f79a9423334af9e490e4cce793"