Applying TypeScript to Node.js (feat. NodeBird) Course

Passport-related typing has been updated again.

Add the following code to types/index.d.ts

 import IUser from '../models/user' ;

 declare global {
 namespace Express {
 export interface User extends IUser {}
 }
 }

Change passport/index.ts to:

 passport . serializeUser (( user , done ) => {
 done ( null , user . id );
 });
 passport . deserializeUser < number >( async ( id , done ) => {
 try {
 const user = await User . findOne ({
 where : { id },
 });
 if (! user ) {
 return done ( new Error ( 'no user' ));
 }
 return done ( null , user ); // req.user
 } catch ( err ) {
 console . error ( err );
 return done ( err );
 }
 });

Additionally, you no longer need to do req.user!.toJSON() as User . You can just use req.user .

You need to add the ts-node section to tsconfig.json.

 {
 "ts-node" : {
 "files" : true
  } ,
  "compilerOptions" : {
 "strict" : true,
    "lib" : [ "es2020" ] ,
    "esModuleInterop" : true,
    "moduleResolution" : "node" ,
    "typeRoots" : [ "./types" ]
 }
 }