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Kenil Vasani
Kenil Vasani

Kenil Vasani

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Asked: 2020-12-19T22:00:08+00:00 In:

nodejs – error self signed certificate in certificate chain

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I am facing a problem with client side https requests.

A snippet can look like this:

var fs = require('fs');
var https = require('https');

var options = {
    hostname: 'someHostName.com',
    port: 443,
    path: '/path',
    method: 'GET',
    key: fs.readFileSync('key.key'),
    cert: fs.readFileSync('certificate.crt')
}

var requestGet = https.request(options, function(res){
    console.log('resObj', res);
}

What I get is Error: self signed certificate in certificate chain.

When I use Postman I can import the client certificate and key and use it without any problem. Is there any solution available?? I would also like to be given some lights on how postman handles the certificates and works.

authenticationhttpsjavascriptnode.jsssl
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    1 Answer

    1. Kenil Vasani

      Kenil Vasani

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      Best Answer

      From your question I’m guessing you are doing this in development as you are using a self signed certificate for SSL communication.

      If that’s the case, add NODE_TLS_REJECT_UNAUTHORIZED='0' as an environment variable wherever you are running node or running node directly with NODE_TLS_REJECT_UNAUTHORIZED='0' node app.js

      This instructs Node to allow untrusted certificates (untrusted = not verified by a certificate authority)

      If you don’t want to set an environment variable or need to do this for multiple applications npm has a configuration you can set using the command npm config set strict-ssl=false

      I would not recommend setting this environment variable in production. Use a free SSL cert from a trusted provider like letsencrypt.org

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