node curl error "Received HTTP code 503 from proxy after CONNECT" - node.js

Question

I get a JWT token after authenticating on an API with a POST req.
With that token, I can make a successful curl call from my command prompt:
curl --request GET https://corpURL/customer/wlsAccountManagement/v1/billingAccount/23435657 --header "env: it04" --header "Authorization: Bearer tokenstring..."
But when I try to exec this in node, it fails with Received HTTP code 503 from proxy after CONNECT.
I even tried a basic curl in the command prompt and it works:
curl -v https://corpURL/customer/wlsAccountManagement/v1/billingAccount/23435657
It just tells me I am unauthorized {"message":"Unauthorized"}, which is correct.
In node, I can't even get the {"message":"Unauthorized"}, it still gives me Received HTTP code 503 from proxy after CONNECT.
The reason I'm using curl is because I can see more info. Using axios it gives me a "socket hang up" error.
I have been trying to get this to work and searching online for a solution for over a day. Does anyone have any idea what's going on here? Why does it work in the command prompt but not in node? Thanks!

Answer 1

For anyone who can't get an exec with curl to work in node, or using the packages axios or request, use the https package in node like so:
const options = {
hostname: 'hostDomain', // no https protocol
port: 443,
path: '/path/to/get',
method: 'GET',
headers: {
Authorization: `Bearer tokenString`,
'Content-Type': 'application/json',
},
};
const req = https.request(options, response => {
response.on('data', d => {
process.stdout.write(d);
});
});
req.on('error', e => {
console.error(e);
});
req.end();
This was the only way I was able to get the response so far, in node. I may tweak the structure as it doesn't seem that clean, but it works! You may also need to set the env var for your cert file NODE_EXTRA_CA_CERTS=cert.pem as I already had. Peace.
EDIT
I found a solution with axios, you need to create instances with a baseURL like the https request has it:
const axiosInstance = axios.create({
baseURL: 'https://corpURL',
headers: {
Authorization: `Bearer ${token}`,
'Content-Type': 'application/json',
env: 'it04',
},
});
axiosInstance
.get('/get/path')
.then(response => console.log('response', response.data))
.catch(err => console.log('err', err));