if i want to use JWT Authentication, where should i put my JWT_AUTH_SECRET_KEY ?

[differentMonster]

i wanted to use JWT authentication with wuxt but i have this error.
{"code":"rest_no_route","message":"No route was found matching the URL and request method.","data":{"status":404}}

i think is because wnuxt didt need a wp-config file but i manually create one and pu the JWT_AUTH but it didt detect it, how should i make this work ? anyone tried

i am follow this post
https://hashinteractive.com/blog/headless-wordpress-jwt-vue-authentication/