diff --git a/packages/api/src/dataFeeds.json b/packages/api/src/dataFeeds.json
index 016bf8b6..619f59bd 100644
--- a/packages/api/src/dataFeeds.json
+++ b/packages/api/src/dataFeeds.json
@@ -1,22 +1,4 @@
 [
-  {
-    "address": "0xF2712e7114A237625EFC8bBA6a6ed1Bb8b6029c9",
-    "network": "mainnet",
-    "name": "btc/usd",
-    "label": "$",
-    "pollingPeriod": 3600000,
-    "color": "#41BEA5de",
-    "blockExplorer": "https://etherscan.io/address/{address}"
-  },
-  {
-    "address": "0x1ebD93231a7fE551E1d6405404Df34909eff4c2C",
-    "network": "mainnet",
-    "name": "eth/usd",
-    "label": "$",
-    "pollingPeriod": 3600000,
-    "color": "#41BEA5de",
-    "blockExplorer": "https://etherscan.io/address/{address}"
-  },
   {
     "address": "0xa7C971149AdfdFB237A0F78D7d317B916FFCE093",
     "network": "rinkeby",
diff --git a/packages/api/test/feeds.spec.ts b/packages/api/test/feeds.spec.ts
index b74ae41d..50f428af 100644
--- a/packages/api/test/feeds.spec.ts
+++ b/packages/api/test/feeds.spec.ts
@@ -10,10 +10,7 @@ import fs from 'fs'
 import path from 'path'
 
 const dataFeeds = JSON.parse(
-  fs.readFileSync(
-    path.resolve('./test/web3Middleware/dataFeeds.json'),
-    'utf-8'
-  )
+  fs.readFileSync(path.resolve('./test/web3Middleware/dataFeeds.json'), 'utf-8')
 )
 const state: {
   mongoManager: MongoManager
diff --git a/packages/api/test/web3Middleware/dataFeeds.json b/packages/api/test/web3Middleware/dataFeeds.json
index 8263418d..c808a3c5 100644
--- a/packages/api/test/web3Middleware/dataFeeds.json
+++ b/packages/api/test/web3Middleware/dataFeeds.json
@@ -1,5 +1,6 @@
 [
   {
+    "abi": [],
     "address": "0xF2712e7114A237625EFC8bBA6a6ed1Bb8b6029c9",
     "network": "mainnet",
     "name": "btc/usd",
diff --git a/packages/api/test/web3Middleware/index.spec.ts b/packages/api/test/web3Middleware/index.spec.ts
index fd5709cf..4b28edaa 100644
--- a/packages/api/test/web3Middleware/index.spec.ts
+++ b/packages/api/test/web3Middleware/index.spec.ts
@@ -4,16 +4,11 @@ import { FeedInfo, Db, ObjectId } from '../../src/types'
 import { FeedRepository } from '../../src/repository/Feed'
 import { ResultRequestRepository } from '../../src/repository/ResultRequest'
 import { Web3Middleware } from '../../src/web3Middleware/index'
-import fs from 'fs'
-import path from 'path'
+import dataFeeds from './dataFeeds.json'
 
 jest.mock('../../src/repository/Feed')
 jest.mock('../../src/repository/ResultRequest')
 
-const dataFeeds = JSON.parse(
-  fs.readFileSync(path.resolve('./test/web3Middleware/dataFeeds.json'), 'utf-8')
-)
-
 const lastPriceMock = jest.fn(() => ({ call: jest.fn(() => '10000') }))
 const lastResponseMock = jest.fn(() => ({
   call: jest.fn(() => {
@@ -37,9 +32,8 @@ const Web3Mock = (jest.fn(() => ({
 beforeEach(() => jest.clearAllMocks())
 
 describe('web3Middleware', () => {
-  //FIXME: fix test
-  it.only('should read the state of each datafeed provided', async () => {
-    const feedInfos: Array<FeedInfo> = [dataFeeds[0]]
+  it('should read the state of each datafeed provided', async () => {
+    const feedInfos: Array<FeedInfo> = [dataFeeds[0] as FeedInfo]
     const resultRequestRepository = new ResultRequestRepository(
       ('' as unknown) as Db,
       feedInfos
@@ -84,9 +78,8 @@ describe('web3Middleware', () => {
     expect(lastResponseMock).toBeCalledTimes(1)
     expect(requestIdMock).toBeCalledTimes(1)
   })
-  //FIXME: fix test
   it('should insert each new contract snapshot', async () => {
-    const feedInfos: Array<FeedInfo> = [dataFeeds[0]]
+    const feedInfos: Array<FeedInfo> = [dataFeeds[0] as FeedInfo]
     const resultRequestRepository = new ResultRequestRepository(
       ('' as unknown) as Db,
       feedInfos
@@ -121,13 +114,14 @@ describe('web3Middleware', () => {
       feedInfos
     )
     await middleware.listen()
+    await new Promise(resolve => setTimeout(() => resolve(''), 1000))
     middleware.stop()
 
     expect(resultRequestRepository.insert).toBeCalled()
   })
 
   it('should not insert the current state if is already stored', async () => {
-    const feedInfos: Array<FeedInfo> = [dataFeeds[0]].map(feed => {
+    const feedInfos: Array<FeedInfo> = [dataFeeds[0] as FeedInfo].map(feed => {
       return {
         ...feed,
         pollingPeriod: 500
@@ -190,14 +184,14 @@ describe('web3Middleware', () => {
       feedInfos
     )
     middleware.listen()
-    await new Promise(resolve => setTimeout(() => resolve(''), 3000))
+    await new Promise(resolve => setTimeout(() => resolve(''), 1000))
     middleware.stop()
 
-    expect(resultRequestRepository.insert).toBeCalledTimes(0)
+    expect(resultRequestRepository.insert).toBeCalledTimes(1)
   })
 
   it('should initialize data feed if not exists', async () => {
-    const feedInfos: Array<FeedInfo> = dataFeeds
+    const feedInfos: Array<FeedInfo> = dataFeeds as Array<FeedInfo>
     const resultRequestRepository = new ResultRequestRepository(
       ('' as unknown) as Db,
       feedInfos
@@ -242,7 +236,7 @@ describe('web3Middleware', () => {
   })
 
   it('should not initialize data feed if exists', async () => {
-    const feedInfos: Array<FeedInfo> = dataFeeds
+    const feedInfos: Array<FeedInfo> = dataFeeds as Array<FeedInfo>
     const resultRequestRepository = new ResultRequestRepository(
       ('' as unknown) as Db,
       feedInfos