Inputtyper

Inputtyper is a software library designed to standardize the handling of user input across applications. It provides tools for type-safe parsing, validation, and normalization of input data collected from forms, command lines, APIs, and other input sources.

Core concepts include input schemas, pluggable transformers, and validators. Developers define a schema describing the expected shape of input and associated constraints. Input data passes through a pipeline of transformers to coerce types and normalize values, followed by validators that enforce rules such as required fields, ranges, patterns, and custom conditions.

Architecture and usage emphasize modularity and composability. The library supports client-side and server-side environments, with adapters for web forms, REST endpoints, and CLI tools. Schemas can be defined in a declarative format, and pipelines can be extended with custom transformers and validators. It integrates with error handling and localization frameworks to provide informative feedback to users and developers alike.

Applications and examples include reducing boilerplate in form processing, data ingestion pipelines, and command parsers. Inputtyper is particularly useful for projects that require strict type safety across layers and consistent error messaging, enabling developers to catch invalid input early and present clear guidance to users.

Limitations and reception acknowledge that, while the library enhances safety and maintainability, it introduces a learning curve and potential performance overhead. Its benefits depend on well-defined schemas and disciplined usage, especially in projects with dynamic or highly varied input sources. Overall, Inputtyper aims to balance rigor with practicality in input handling.