I stored my secret jwt token in the .env file.
JWT_SECRET="secretsecret"
When I attempt to retrieve the value using process.env.JWT_SECRET, I encounter an error:
Argument of type 'string | undefined' is not assignable to parameter of type 'Secret'
I'm currently learning typescript and facing this issue with the .env file. Any advice would be appreciated.
To start off, in order to incorporate the environment constants from the .env file into your program, you will need to first install the dotenv package using npm install dotenv --save. Then, add the following lines of code into your .ts file:
import * as dotenv from 'dotenv'
dotenv.config()
Remember: make sure to place this code snippet at the beginning of your .ts file.
An error is occurring because the required parameter type is Secret, but process.env.JWT_SECRET is of type string|undefined
To fix this problem, you can do:
import {Secret} from "jsonwebtoken"process.env.JWT_SECRET as Secret instead of just process.env.JWT_SECRET
Node.js comes with built-in support for environment variables, which can be accessed through the env object within the global process object.
If you want to test this functionality, try creating your own environment variable directly in the Node REPL by adding a new property to the process.env object.
To manage environment variables in your Node application, it's recommended to use a tool like DotEnv.
DotEnv is a simple npm package that automatically loads environment variables from a .env file into the process.env object.
To start using DotEnv, install it by running the command: npm i dotenv. Then, include and configure the package in your app like this: require('dotenv').config()
You can define multiple variables in the .env file. For instance, you might specify database-related variables such as:
DB_HOST=localhost
DB_USER=admin
DB_PASSWORD=password
No need to add quotation marks around strings when declaring variables - DotEnv handles this for you automatically.
Accessing your variables is straightforward! They are stored in the process.env object, making them accessible using the syntax process.env.KEY.
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