nestjs — FixDevsLatest fixes and solutions for nestjs errors on FixDevs.https://fixdevs.com/enWed, 25 Mar 2026 00:00:00 GMTFix: NestJS Swagger UI Not Showing — /api-docs Returns 404 or Blank Pagehttps://fixdevs.com/blog/nestjs-swagger-not-showing/https://fixdevs.com/blog/nestjs-swagger-not-showing/How to fix NestJS Swagger UI not displaying — SwaggerModule setup, DocumentBuilder, decorators not appearing, guards blocking the docs route, and Fastify vs Express differences.Wed, 25 Mar 2026 00:00:00 GMTnestjsnodejstypescriptbackenddebuggingFixDevsFix: NestJS Nest can't resolve dependencies — Provider Not Found Errorhttps://fixdevs.com/blog/nestjs-module-not-found/https://fixdevs.com/blog/nestjs-module-not-found/How to fix NestJS dependency injection errors — module imports, provider exports, circular dependencies, dynamic modules, and the most common 'can't resolve dependencies' patterns.Sun, 22 Mar 2026 00:00:00 GMTnestjsnodejstypescriptbackenddebuggingFixDevsFix: NestJS ValidationPipe Not Working — class-validator Decorators Ignoredhttps://fixdevs.com/blog/nestjs-validation-pipe-not-working/https://fixdevs.com/blog/nestjs-validation-pipe-not-working/How to fix NestJS ValidationPipe not validating requests — global pipe setup, class-transformer, whitelist and transform options, custom validators, and DTO inheritance issues.Sun, 22 Mar 2026 00:00:00 GMTnestjsnodejstypescriptbackenddebuggingFixDevsFix: NestJS Guard Not Working — canActivate Always Passes or Is Never Calledhttps://fixdevs.com/blog/nestjs-guard-not-working/https://fixdevs.com/blog/nestjs-guard-not-working/How to fix NestJS guards not working — applying guards globally vs controller vs method level, JWT AuthGuard, metadata with Reflector, public routes, and guard execution order.Sat, 21 Mar 2026 00:00:00 GMTnestjsnodejstypescriptbackenddebuggingFixDevsFix: NestJS Interceptor Not Triggered — Interceptors Not Runninghttps://fixdevs.com/blog/nestjs-interceptor-not-triggered/https://fixdevs.com/blog/nestjs-interceptor-not-triggered/How to fix NestJS interceptors not being called — global vs controller vs method binding, response transformation, async interceptors, execution context, and interceptor ordering.Sat, 21 Mar 2026 00:00:00 GMTnestjsnodejstypescriptbackenddebuggingFixDevsFix: NestJS Circular Dependency — forwardRef and Module Designhttps://fixdevs.com/blog/nestjs-circular-dependency/https://fixdevs.com/blog/nestjs-circular-dependency/How to fix NestJS circular dependency errors — using forwardRef, restructuring module dependencies, extracting shared services, and understanding the NestJS module system.Fri, 20 Mar 2026 00:00:00 GMTnestjsnodejstypescriptbackenddebuggingFixDevs