node.js - Node environment variable not being read as string in app -

i'm using library requires secret string. i've set node variable so:

export jwt_secret=e177920e88165bd0090b1c6b544cf7

however, when try use in app, so:

const jwt = require('jsonwebtoken');  function usertoken(user) {   return jwt.sign({     user: user.id,   }, process.env.jwt_secret); }

it hits error says secret must string or buffer. thought node variables strings, not sure issue is. thanks.

hmm, works fine me. maybe try adding console.log(process.env.jwt_secret) check env var being loaded correctly.

as side note, consider using kind of environment variable management library such dotenv. allows store of environment variables in .env file like:

jwt_secret="abc" other_env_var="def"

it makes easier keep track of env vars :)

WIKI