npm auth token with zsh or bash and curl or node

npm-auth-token.js

// npm install superagent
const superagent = require("superagent");

// this is verdaccio's url ↓ but you could use like registry.npmjs.com if that is allowed in their TOS
const registryUrl = "http://127.0.0.1:4873";
const username = "myusername2";
const password = "mypassword2";

const frm ={
  name: username,
  password,
  type: 'user'
};

const loginUrl = `${registryUrl}/-/user/org.couchdb.user:${username}`;

superagent
  .put(loginUrl)
  .type("json")
  .accept("json")
  .auth(username, password)
  .send(frm)
  .end(function(err, res) {
    console.log("err", err)
    console.log("res.body",  res && res.body);
  });

npm-auth-token.zsh

#!/bin/zsh

# inspired by this script
# https://stackoverflow.com/questions/23460980/set-up-npm-credentials-over-npm-login-without-reading-input-from-stdin

# and tvb user
# https://github.com/verdaccio/verdaccio/issues/490#issuecomment-358405862

# this is verdaccio's url ↓ but you could use like registry.npmjs.com if that is allowed in their TOS
registryUrl='http://127.0.0.1:4873'
registryHost='127.0.0.1:4873'
username='myusername'
password='mypassword'
form="""
{
  \"name\": \"$username\",
  \"password\": \"$password\",
  \"type\": \"user\"
}
"""

TOKEN=$(curl -s \
  -H "Accept: application/json" \
  -H "Content-Type:application/json" \
  -X PUT --data $form \
  --user $username:$password \
  $registryUrl/-/user/org.couchdb.user:$username 2>&1 | grep -Po \
  '(?<="token": ")[^"]*')

echo "//$registryHost/:_authToken=$TOKEN" >> .npmrc

Will give it a try, thank you!