Effect Schema Crash Course

Buy me a coffee! https://buymeacoffee.com/lucasbarake Documentation: https://github.com/Effect-TS/effect/b... In this video, I provide a comprehensive tutorial on @effect/schema, a powerful TypeScript library for data validation and transformation. I cover essential concepts like defining schemas, parsing data, and handling optional values, while also exploring advanced features such as custom filters, complex transformations, and error handling. I demonstrate how to effectively use Schema.transform and Schema.transformOrFail for sophisticated data manipulation, compose schemas for modular code, and work with discriminated unions for advanced typing. Throughout the tutorial, I offer real-world examples and comparisons to other libraries like Zod, making this an invaluable resource for developers looking to leverage @effect/schema in their TypeScript projects. 00:00 Introduction to @effect/schema 01:39 Understanding Decoding and Encoding in Schema Operations 02:49 Disclaimer 03:12 Fundamentals: Defining Schemas and Parsing Data 06:10 Using Either for Error Handling 09:19 Handling Optional Data: Null, Undefined, and Optional Schemas 11:32 Data Validation: Using Filters (Zod's refine Equivalent) 13:51 Practical Applications: Common Filter Utilities 16:50 Data Transformation: Introducing Schema.transform 18:32 Runtime Validations: "From" and "To" Checks in Schema.transform 20:30 Complex Transformations: Schema.transformOrFail for Encoding and Decoding 25:17 Schema Composition: Leveraging Schema.compose 29:50 Working with Discriminated Unions 31:26 Data Normalization: Using Schema.rename and Schema.transform 34:31 Avoiding Common Pitfalls: Schema.transform and Schema.typeSchema 37:10 Real-world Example: Unions with Schema.Literal 39:11 Error Paths (Zod's superRefine Equivalent)