What challenges did you face when using the TypeORM library in projects?

When using TypeORM in Node.js projects, I encountered several challenges:

• Database migrations: Sometimes migrations did not accurately reflect changes in entities, requiring manual adjustments or recreating migrations.

• Performance: For complex queries with many relations, TypeORM could generate inefficient SQL queries, necessitating optimization through QueryBuilder or writing native queries.

• Typing and autocompletion: Sometimes, the types in TypeORM did not fully match the database types, leading to runtime errors.

• Caching and lazy loading: Lazy loading sometimes caused unexpected additional queries, affecting performance.

To address these issues, I used:

• Explicit migration management and testing.
• QueryBuilder for complex queries.
• Careful type definitions and schema validation.

This helped avoid common errors and improved application stability.