it has throws me following error

F:\1.Angular_API_Execersie\express-jwt-auth-mongoose-master>node create_user.js demo demo
{ [Error: Cannot find module '../build/Release/bson'] code: 'MODULE_NOT_FOUND' }
js-bson: Failed to load c++ bson extension, using pure JS version
Username: demo
Password: demo
Creating a new user in Mongo
Mongoose: users.ensureIndex({ username: 1 }) { unique: true, background: true, safe: undefined }
Mongoose connected to the database
Mongoose: users.insert({ password: '$2a$10$H6yB3VPh3ccJCP7aLSnkcuP1tVttCpuAzKhSqpDp688ZSwVOK/vlO', username: 'demo', _id: ObjectId("5805b0eb
6624df6c11db74f8"), __v: 0 }) {}
{ __v: 0,
password: '$2a$10$H6yB3VPh3ccJCP7aLSnkcuP1tVttCpuAzKhSqpDp688ZSwVOK/vlO',
username: 'demo',
_id: 5805b0eb6624df6c11db74f8,
id: '5805b0eb6624df6c11db74f8' }

F:\1.Angular_API_Execersie\express-jwt-auth-mongoose-master>node app.js
{ [Error: Cannot find module '../build/Release/bson'] code: 'MODULE_NOT_FOUND' }
js-bson: Failed to load c++ bson extension, using pure JS version
Mongoose: users.ensureIndex({ username: 1 }) { unique: true, background: true, safe: undefined }

What is working:

• creating user via create_user.js
• error handling for unauthorised access and wrong user/password

What is not:

• when user and password are correct, I constantly receive error 500. That is independent of node, express or jwt version. Tried with node 0.12.7 and 4.1.0, jwt 0.4.1 and latest version but no matter what server throws error 500. Actually all jwt versions prior 4 are deprecated for security reasons - https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/

Could you add a little explanation about generating the keys? I tried replicating using openssl but I wasn't entirely sure what I was doing -- especially since there seems to be some files in the /keys directory that don't look like they're being used.

EDIT // Found your blog post while searching for some help -- How to generate self-signed certificate for usage in Express4 or Node.js HTTP