Actix-web OpenSSL SSL/HTTPS for Localhost, is it possible please?


I have followed this post successfully: How to Get SSL/HTTPS for Localhost.

Basically we use OpenSSL to generate keys and a self signed certificate, so that we can test localhost via HTTPS.

This nodejs is from the above tutorial. I ran it on my Ubuntu machine:

const fs = require('fs')
const key = fs.readFileSync('./cert/localhost.decrypted.key')
const cert = fs.readFileSync('./cert/localhost.crt')

const express = require('express')
const app = express()

app.get('/', (req, res, next) => {
  res.status(200).send('Hello world!')

And from my Windows 10 Pro machine, I am able to access

Where is the IP address of the Ubuntu machine.

  • Firefox responds with Hello world! no warning.

  • Chrome, Edge, Opera, Brave and Vivaldi respond with Hello world! but with Not secure warning.

Please help me with the following question. Can we write an actix-web equivalence of the above NodeJs script, please?

-- That is, we would use the same localhost.decrypted.key and localhost.crt files.

Please note, I am not asking for the code. I would just like a confirmation that we can, or can not.

Thank you and best regards,


Yes, Actix supports HTTPS. You can find an example that uses OpenSSL here.


Hi jofas,

Thank you for your help once again. I am able to follow the example successfully.

I would just like to mention that, if we change the binding to:

    .bind_openssl("", builder)?

Then we are able to access it as where is the address of the machine which the server is running on.

Also, I used:

openssl req -x509 -newkey rsa:4096 -keyout key-pass.pem -out cert-pass.pem -sha256 -days 365

to generate the files on Ubuntu 22.10.

I also copied key-pass.pem and cert-pass.pem to Windows 10 Pro. The example server also works with these two files on Windows 10 Pro.

That is, https://localhost:5000 also works.

Best regards,


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