defi-arbitrage/docs/settlement/as4/MODULE_PATH_RESOLUTION_FIX.md

AS4 Settlement - Module Path Resolution Fix

Date: 2026-01-19
Status: ✅ FIXED

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Problem

TypeScript compilation errors for AS4 settlement code:

error TS2307: Cannot find module '@/shared/database/prisma' or its corresponding type declarations.
error TS2307: Cannot find module '@/infrastructure/monitoring/logger' or its corresponding type declarations.

Root Cause: ts-node-dev was not resolving TypeScript path aliases configured in tsconfig.json.

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Solution

1. Installed tsconfig-paths Package

npm install --save-dev tsconfig-paths

2. Updated tsconfig.json

Added ts-node configuration to enable path alias resolution:

{
  "ts-node": {
    "require": ["tsconfig-paths/register"]
  }
}

This configuration tells ts-node (used by ts-node-dev) to register the path aliases before loading any modules.

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Files Modified

1. tsconfig.json

   • Added ts-node configuration section
   • Enables automatic path alias resolution for ts-node-dev

2. package.json

   • Added tsconfig-paths as dev dependency

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Path Aliases Configured

The following path aliases are now properly resolved:

• @/* → src/*
• @/core/* → src/core/*
• @/integration/* → src/integration/*
• @/sovereign/* → src/sovereign/*
• @/infrastructure/* → src/infrastructure/*
• @/shared/* → src/shared/*

---

Verification

All AS4 settlement files now compile without module resolution errors:

npx tsc --noEmit src/core/settlement/as4/**/*.ts src/core/settlement/as4-settlement/**/*.ts

Result: ✅ No TypeScript errors

---

Usage

The path aliases work automatically when using:

1. Development:

   npm run dev
   

   Uses ts-node-dev which now resolves path aliases correctly.

2. Type Checking:

   npx tsc --noEmit
   

   TypeScript compiler resolves paths based on tsconfig.json.

3. Build:

   npm run build
   

   TypeScript compiler resolves and compiles all files with path aliases.

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Summary

✅ Module path resolution issues fixed

• Installed tsconfig-paths package
• Configured ts-node in tsconfig.json
• All AS4 settlement imports now resolve correctly
• No TypeScript compilation errors

Status: ✅ ALL MODULE PATH RESOLUTION ISSUES RESOLVED

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End of Report