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Articles tagged with #ditsmod
When TypeScript decorators are used for Dependency Injection, they are needed for two things. First, they signal to the TypeScript compiler that it needs to read TypeScript types, transform them into JavaScript code, and save them. Second, if additio...
If you look through the search results on github for the keyword nodejs-framework (with only TypeScript projects selected), you can see that there are currently about 5 different frameworks designed to create applications that process HTTP requests o...
Good application modularity is closely related to the injector tree hierarchy that Dependency Injection (DI) creates. This article uses NestJS v10.0 and Ditsmod v2.38 for comparison. I am the author of Ditsmod. DI injectors are sometimes referred to...
The description of NestJS specifically states that this framework was designed for "scalable server-side applications". Surprisingly, only in the eighth version it began to support prefixes at the module level, and this feature has a number of signif...
NestJS performs input validation using decorators, pipes, and the class-validator utility. For example, if validation is required for path-parameters or query-parameters, the @Param() or @Query() decorators are used for this, respectively, along with...
Interceptors, guards, pipes, and exception filters are sometimes referred to as "enhancers" in the NestJS documentation. Although they are all declared with the @Injectable() decorator and can use Dependency Injection, they are not providers. Therefo...