AWS IoT in React native. "fs".existsSync is not a function

Question

I'm trying to implement aws-iot-device-sdk in react native. As mentioned, i've followed below steps to do the setup.

1. Install aws-sdk and aws-iot-device-sdk

npm install --save aws-sdk aws-iot-device-sdk

2. Install RN nodeify

npm install --save-dev rn-nodeify

3. Install dependencies with rn-nodeify

npx rn-nodeify --install "fs,util,path,tls,stream,buffer,global,process,events,url" --hack

4. Add this line into scripts part in package.json file

"postinstall": "npx rn-nodeify --install 'fs,util,path,tls,stream,buffer,global,process,events,url' --hack"

5. Install asyncstorage-down

npm install --save asyncstorage-down

6. Import shim file into index.js

import './shim';

As soon as I'm trying to call AwsIot.device() by passing certificate and private key, i'm getting below error.

TypeError: _$$_REQUIRE(dependencyMap[2], "fs").existsSync is not a function. (In '$$_REQUIRE(dependencyMap[2], "fs").existsSync(options.caCert)', '$$_REQUIRE(_dependencyMap[2], "fs").existsSync' is undefined)