dbis_core/FIXES_QUICK_REFERENCE.md

TypeScript Fixes - Quick Reference

Error Code Cheat Sheet

Error Code	Meaning	Fix Pattern
TS2307	Cannot find module	Add missing import
TS2304	Cannot find name	Add missing import or type
TS7030	Not all code paths return	Add return statement
TS2322	Type not assignable	Add type cast or fix type
TS2339	Property does not exist	Add type assertion or include relation
TS2352	Conversion may be mistake	Add as unknown as TargetType
TS2353	Property does not exist in type	Check Prisma schema or use correct field
TS18046	Property is of type 'unknown'	Add type assertion
TS2571	Object is of type 'unknown'	Add type assertion
TS18047	Possibly 'null'	Add null check or ! assertion
TS2345	Argument type mismatch	Fix parameter type or cast
TS2551	Property does not exist on PrismaClient	Check schema, use correct model name
TS2365	Operator cannot be applied	Use Decimal methods instead of operators
TS2531	Object is possibly 'null'	Add null check
TS2698	Spread types error	Fix object type before spreading

Common Fix Patterns

1. Missing Import

// Error: Cannot find name 'uuidv4'
import { v4 as uuidv4 } from 'uuid';

2. Missing Return

// Error: Not all code paths return
catch (error) {
  return next(error);  // Add 'return'
}

3. JsonValue Cast

// Error: Type 'Record<string, unknown>' is not assignable
metadata: data as Prisma.InputJsonValue

4. Type Conversion via Unknown

// Error: Conversion may be mistake
metadata: request as unknown as Record<string, unknown>

5. Unknown Type Assertion

// Error: Property is of type 'unknown'
const data = consolidatedData as Record<string, unknown>;
const bankDetails = data.bankDetails as BankDetails;

6. Null Safety

// Error: Possibly 'null'
if (value) {
  // Use value
}
// Or
const result = value!.property;

7. Prisma Property Access

// Error: Property does not exist
// Solution 1: Include relation
const bond = await prisma.gruBond.findUnique({
  where: { bondId },
  include: { bondDetails: true }
});

// Solution 2: Type assertion
const bondName = (bond as any).bondName;

8. Decimal Operations

// Error: Operator '+' cannot be applied
const result = number + decimal.toNumber();
// Or
const result = decimal.plus(new Decimal(number));

File-Specific Fixes

reporting-engine.service.ts

• Cast consolidatedData to Record<string, unknown> before accessing properties
• Cast adequacyData similarly

gru-controls.service.ts

• Remove circuitBreakerEnabled from updateMany (not in schema)
• Remove issuanceWindowOpen from updateMany (not in schema)
• Use update instead or check schema

gru-command.service.ts

• Include bond relations to access bondName, bondCode
• Use indexValue instead of price
• Add null check for latestPricing.yield

dbis-admin.routes.ts / scb-admin.routes.ts

• Add type extension for req.sovereignBankId
• Or use (req as any).sovereignBankId

sandbox.service.ts

• Cast JsonValue to Record<string, unknown> before accessing properties
• Use type guards for property access

Priority Order

1. Quick: Missing imports, missing returns
2. Medium: JsonValue casts, type conversions
3. Complex: Prisma schema issues, property access
4. Final: Edge cases, complex type issues