Typescript backend setup

Typescript backend setup - v0 by VercelTypescript backend setup - v0 by Vercel

No update was made to the swagger docs... Also let's write a script that seeds the database with both a super admin profile and an admin profile.

Also... What can i use for the JWT_SECRET, JWT_REFRESH_SECRET, JWT_EXPIRES_IN, and JWT_REFRESH_EXPIRES_IN?

322d ago

You're absolutely right! Let me update the Swagger documentation and create a database seeding script. I'll also provide guidance on the JWT environment variables.

Updated Swagger Documentation & Database Seeding

I've now properly updated the Swagger documentation and created comprehensive database seeding scripts. Here's what's included:

Updated Swagger Documentation

The Swagger docs now include:

New Admin Tags: Admin Auth, Admin Profile, Admin Coupons
Admin Schemas: Admin model, LoginResponse, Error handling
Enhanced Security: Proper JWT bearer token documentation
Complete API Coverage: All admin endpoints are now documented

Database Seeding Script

The seeding script creates:

Super Admin Account:

Email: superadmin@bluehouse.com
Password: SuperAdmin123!
Role: super_admin

Regular Admin Account:

Email: admin@bluehouse.com
Password: Admin123!
Role: admin

Sample Coupons:

WELCOME20 - 20% off, 100 uses, expires in 30 days
SAVE10 - 10% off, 50 uses, expires in 15 days
EARLYBIRD - 25% off, 25 uses, expires in 7 days
EXPIRED - 15% off, expired (for testing)

JWT Environment Variables

For your JWT configuration, here are the recommended values:

JWT Secrets

Use the script I created to generate secure secrets:

npm run generate:jwt

This will output something like:

JWT_SECRET=a1b2c3d4e5f6...64-character-hex-string
JWT_REFRESH_SECRET=f6e5d4c3b2a1...64-character-hex-string
JWT_EXPIRES_IN=7d
JWT_REFRESH_EXPIRES_IN=30d

Recommended Values:

JWT_SECRET & JWT_REFRESH_SECRET:

Use the generated 64-character hex strings
Keep them different from each other
Never commit them to version control

JWT_EXPIRES_IN:

15m - Very secure, frequent re-authentication
1h - Good balance for most apps
7d - Convenient for development/testing
1d - Good for production

JWT_REFRESH_EXPIRES_IN:

7d - Short-lived, high security
30d - Good balance
90d - Longer convenience

How to Use

Generate JWT Secrets:

npm run generate:jwt

Update your .env file with the generated secrets
Seed the database:

npm run seed

Clear database (if needed):

npm run seed:clear

Test the API:

Visit http://localhost:3000/api-docs for Swagger documentation
Login with either admin account
Test coupon validation with the sample codes

Testing the Admin System

Login as Super Admin:

curl -X POST http://localhost:3000/api/admin/auth/login \
  -H "Content-Type: application/json" \
  -d '{"email":"superadmin@bluehouse.com","password":"SuperAdmin123!"}'

Use the returned token to access protected endpoints:

curl -X GET http://localhost:3000/api/admin/coupons \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN"

Test coupon validation:

curl -X GET http://localhost:3000/api/coupon/validate/WELCOME20

The Swagger documentation is now complete and includes all admin endpoints with proper authentication requirements!

322d ago

When I attempted validating the coupons I seeded I got this error:

Coupon validation error: CastError: Cast to Number failed for value "$maxUses" (type string) at path "currentUses" for model "Coupon"
at SchemaNumber.cast (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\schema\number.js:381:11)
at SchemaNumber.handleSingle (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\schema\number.js:390:15)
at SchemaNumber.castForQuery (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\schema\number.js:431:20)
at cast (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\cast.js:367:39)
at model.Query.Query.cast (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\query.js:5055:12)
at model.Query.Query._castConditions (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\query.js:2351:10)
at model.Query._findOne (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\query.js:2674:8)
at model.Query.exec (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\query.js:4604:80)
at processTicksAndRejections (node:internal/process/task_queues:95:5) {
stringValue: '"$maxUses"',
messageFormat: undefined,
kind: 'Number',
value: '$maxUses',
path: 'currentUses',
reason: AssertionError [ERR_ASSERTION]: The expression evaluated to a falsy value:

assert.ok(!isNaN(val))  

  at castNumber (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\cast\number.js:27:10)  
  at SchemaNumber.cast (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\schema\number.js:379:12)  
  at SchemaNumber.handleSingle (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\schema\number.js:390:15)  
  at SchemaNumber.castForQuery (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\schema\number.js:431:20)  
  at cast (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\cast.js:367:39)  
  at model.Query.Query.cast (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\query.js:5055:12)  
  at model.Query.Query._castConditions (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\query.js:2351:10)  
  at model.Query._findOne (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\query.js:2674:8)  
  at model.Query.exec (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\query.js:4604:80)  
  at processTicksAndRejections (node:internal/process/task_queues:95:5) {  
generatedMessage: true,  
code: 'ERR_ASSERTION',  
actual: false,  
expected: true,  
operator: '=='

},
valueType: 'string'
}

And I got this typescript error for the jwtService file:

No overload matches this call.
Overload 1 of 5, '(payload: string | object | Buffer<ArrayBufferLike>, secretOrPrivateKey: null, options?: (SignOptions & { algorithm: "none"; }) | undefined): string', gave the following error.
Argument of type 'string' is not assignable to parameter of type 'null'.
Overload 2 of 5, '(payload: string | object | Buffer<ArrayBufferLike>, secretOrPrivateKey: Buffer<ArrayBufferLike> | Secret | PrivateKeyInput | JsonWebKeyInput, options?: SignOptions | undefined): string', gave the following error.
Type 'string' is not assignable to type 'number | StringValue | undefined'.
Overload 3 of 5, '(payload: string | object | Buffer<ArrayBufferLike>, secretOrPrivateKey: Buffer<ArrayBufferLike> | Secret | PrivateKeyInput | JsonWebKeyInput, callback: SignCallback): void', gave the following error.
Object literal may only specify known properties, and 'expiresIn' does not exist in type 'SignCallback'.ts(2769)
function sign(payload: string | object | Buffer<ArrayBufferLike>, secretOrPrivateKey: jwt.Secret | jwt.PrivateKey, options?: jwt.SignOptions): string (+4 overloads)
Synchronously sign the given payload into a JSON Web Token string payload - Payload to sign, could be an literal, buffer or string secretOrPrivateKey - Either the secret for HMAC algorithms, or the PEM encoded private key for RSA and ECDSA. [options] - Options for the signature returns - The JSON Web Token string

Show full message

322d ago

Let me fix both issues - the MongoDB query error and the JWT TypeScript error.

Fixed Both Issues

I've resolved both the MongoDB query error and the JWT TypeScript error:

Fixed MongoDB Query Issue

Problem: The query was using $lt: "$maxUses" which MongoDB was interpreting as a string literal instead of a field reference.

Solution: I changed the coupon validation logic to:

First find the coupon with basic criteria (active, not expired)
Then check currentUses >= maxUses in JavaScript code instead of in the MongoDB query

This approach is more reliable and avoids the MongoDB field comparison issue.

Fixed JWT TypeScript Error

Problem: The JWT library expects the options (including expiresIn) to be passed as an object in the third parameter.

Solution: I restructured the JWT function calls to use the correct signature:

jwt.sign(payload, secret, { expiresIn: "7d" })

Added Coupon Testing Script

I've also added a comprehensive testing script that you can run to verify coupon functionality:

npm run test:coupons

This script will:

Test all seeded coupons
Verify validation logic
Show current usage counts
Test case insensitivity
Display database state

How to Test

Re-seed your database (to reset coupon usage counts):

npm run seed

Test coupon validation:

npm run test:coupons

Test via API:

curl http://localhost:3000/api/coupon/validate/WELCOME20

Test via Swagger: Visit http://localhost:3000/api-docs and try the coupon validation endpoint

Expected Test Results

When you run the coupon test, you should see:

✅ WELCOME20, SAVE10, EARLYBIRD should be valid
❌ EXPIRED should be invalid (expired date)
❌ NONEXISTENT should be invalid (doesn't exist)
✅ welcome20 should be valid (case insensitive)

The fixes ensure that:

Coupon validation works correctly without MongoDB casting errors
JWT tokens are generated properly with TypeScript compliance
All coupon logic handles edge cases appropriately

Try running the test script now - it should work without any errors!

322d ago

I want to work on the registration endpoints... Apparently what I actually need is to verify the payment by using the trasaction reference.

I'm not the one meant to initialize payment... But verify it by checking the trasaction reference and then send back an appropriate response based on the outcome of the verification.

So let's update the registration endpoint.

The frontend is going to send the trasaction reference alongside the rest of the other payload. And we're gonna use that to verify the payment and return an appropriate response.

Show full message

319d ago

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No update was made to the swagger docs... Also let's write a script that seeds the database with both a super admin profile and an admin profile.

Also... What can i use for the JWT_SECRET, JWT_REFRESH_SECRET, JWT_EXPIRES_IN, and JWT_REFRESH_EXPIRES_IN?

322d ago

You're absolutely right! Let me update the Swagger documentation and create a database seeding script. I'll also provide guidance on the JWT environment variables.

Updated Swagger Documentation & Database Seeding

I've now properly updated the Swagger documentation and created comprehensive database seeding scripts. Here's what's included:

Updated Swagger Documentation

The Swagger docs now include:

New Admin Tags: Admin Auth, Admin Profile, Admin Coupons
Admin Schemas: Admin model, LoginResponse, Error handling
Enhanced Security: Proper JWT bearer token documentation
Complete API Coverage: All admin endpoints are now documented

Database Seeding Script

The seeding script creates:

Super Admin Account:

Email: superadmin@bluehouse.com
Password: SuperAdmin123!
Role: super_admin

Regular Admin Account:

Email: admin@bluehouse.com
Password: Admin123!
Role: admin

Sample Coupons:

WELCOME20 - 20% off, 100 uses, expires in 30 days
SAVE10 - 10% off, 50 uses, expires in 15 days
EARLYBIRD - 25% off, 25 uses, expires in 7 days
EXPIRED - 15% off, expired (for testing)

JWT Environment Variables

For your JWT configuration, here are the recommended values:

JWT Secrets

Use the script I created to generate secure secrets:

npm run generate:jwt

This will output something like:

JWT_SECRET=a1b2c3d4e5f6...64-character-hex-string
JWT_REFRESH_SECRET=f6e5d4c3b2a1...64-character-hex-string
JWT_EXPIRES_IN=7d
JWT_REFRESH_EXPIRES_IN=30d

Recommended Values:

JWT_SECRET & JWT_REFRESH_SECRET:

Use the generated 64-character hex strings
Keep them different from each other
Never commit them to version control

JWT_EXPIRES_IN:

15m - Very secure, frequent re-authentication
1h - Good balance for most apps
7d - Convenient for development/testing
1d - Good for production

JWT_REFRESH_EXPIRES_IN:

7d - Short-lived, high security
30d - Good balance
90d - Longer convenience

How to Use

Generate JWT Secrets:

npm run generate:jwt

Update your .env file with the generated secrets
Seed the database:

npm run seed

Clear database (if needed):

npm run seed:clear

Test the API:

Visit http://localhost:3000/api-docs for Swagger documentation
Login with either admin account
Test coupon validation with the sample codes

Testing the Admin System

Login as Super Admin:

curl -X POST http://localhost:3000/api/admin/auth/login \
  -H "Content-Type: application/json" \
  -d '{"email":"superadmin@bluehouse.com","password":"SuperAdmin123!"}'

Use the returned token to access protected endpoints:

curl -X GET http://localhost:3000/api/admin/coupons \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN"

Test coupon validation:

curl -X GET http://localhost:3000/api/coupon/validate/WELCOME20

The Swagger documentation is now complete and includes all admin endpoints with proper authentication requirements!

322d ago

When I attempted validating the coupons I seeded I got this error:

assert.ok(!isNaN(val))  

  at castNumber (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\cast\number.js:27:10)  
  at SchemaNumber.cast (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\schema\number.js:379:12)  
  at SchemaNumber.handleSingle (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\schema\number.js:390:15)  
  at SchemaNumber.castForQuery (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\schema\number.js:431:20)  
  at cast (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\cast.js:367:39)  
  at model.Query.Query.cast (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\query.js:5055:12)  
  at model.Query.Query._castConditions (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\query.js:2351:10)  
  at model.Query._findOne (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\query.js:2674:8)  
  at model.Query.exec (C:\Users\USER\Desktop\Career\Work\BlueHouse\registration-payment-backend\node_modules\mongoose\lib\query.js:4604:80)  
  at processTicksAndRejections (node:internal/process/task_queues:95:5) {  
generatedMessage: true,  
code: 'ERR_ASSERTION',  
actual: false,  
expected: true,  
operator: '=='

},
valueType: 'string'
}

And I got this typescript error for the jwtService file:

Show full message

322d ago

Let me fix both issues - the MongoDB query error and the JWT TypeScript error.

Fixed Both Issues

I've resolved both the MongoDB query error and the JWT TypeScript error:

Fixed MongoDB Query Issue

Problem: The query was using $lt: "$maxUses" which MongoDB was interpreting as a string literal instead of a field reference.

Solution: I changed the coupon validation logic to:

First find the coupon with basic criteria (active, not expired)
Then check currentUses >= maxUses in JavaScript code instead of in the MongoDB query

This approach is more reliable and avoids the MongoDB field comparison issue.

Fixed JWT TypeScript Error

Problem: The JWT library expects the options (including expiresIn) to be passed as an object in the third parameter.

Solution: I restructured the JWT function calls to use the correct signature:

jwt.sign(payload, secret, { expiresIn: "7d" })

Added Coupon Testing Script

I've also added a comprehensive testing script that you can run to verify coupon functionality:

npm run test:coupons

This script will:

Test all seeded coupons
Verify validation logic
Show current usage counts
Test case insensitivity
Display database state

How to Test

Re-seed your database (to reset coupon usage counts):

npm run seed

Test coupon validation:

npm run test:coupons

Test via API:

curl http://localhost:3000/api/coupon/validate/WELCOME20

Test via Swagger: Visit http://localhost:3000/api-docs and try the coupon validation endpoint

Expected Test Results

When you run the coupon test, you should see:

✅ WELCOME20, SAVE10, EARLYBIRD should be valid
❌ EXPIRED should be invalid (expired date)
❌ NONEXISTENT should be invalid (doesn't exist)
✅ welcome20 should be valid (case insensitive)

The fixes ensure that:

Coupon validation works correctly without MongoDB casting errors
JWT tokens are generated properly with TypeScript compliance
All coupon logic handles edge cases appropriately

Try running the test script now - it should work without any errors!

322d ago

I want to work on the registration endpoints... Apparently what I actually need is to verify the payment by using the trasaction reference.

I'm not the one meant to initialize payment... But verify it by checking the trasaction reference and then send back an appropriate response based on the outcome of the verification.

So let's update the registration endpoint.

The frontend is going to send the trasaction reference alongside the rest of the other payload. And we're gonna use that to verify the payment and return an appropriate response.

Show full message

319d ago