formik-patterns

This skill provides a standardized framework for managing complex form states, validation logic, and asynchronous submissions in React projects using Formik and Yup. It is designed for developers who need to implement robust, user-friendly forms that follow consistent architectural patterns. By leveraging this skill, developers can reduce boilerplate, ensure type safety, and maintain predictable behavior across various form components, including login screens, data entry wizards, and administrative dashboards. The skill covers everything from basic setup and schema definition to advanced scenarios like conditional field validation and form state management.

• Provides templates for Formik and Yup integration, including common patterns for email, password, phone numbers, and range-constrained inputs.

• Includes helper utilities for managing field properties, touch states, and error messaging to simplify UI component integration.

• Implements best practices for handling asynchronous form submissions, particularly in integration with GraphQL mutations, including status tracking like loading and success/error states.

• Supports conditional validation logic, enabling fields to become required or optional based on the values of other fields within the same form.

• Offers techniques for managing form resets, field initialization, and reinitialization when working with edit screens that rely on external data props.

• Ensures that form submission handles UI feedback, such as disabling buttons during processing and managing submission states for optimal UX.

• Use this skill when initiating new form-based features to ensure your implementation adheres to repository standards for validation and error handling.

• Input requirements include your form definition, data schemas, and the necessary API endpoints or mutation hooks.

• Expected outputs are clean, maintainable form components that integrate seamlessly with existing UI libraries and backend services.

• Note that this skill is primarily designed for React and React Native environments utilizing the Formik library and Yup for schema validation.

• Always remember to check formik.dirty for tracking changes and ensure that validationSchema is memoized or defined outside of the component render cycle where appropriate to avoid performance regressions.

• When implementing complex forms, combine this with graphql-schema and react-ui-patterns for comprehensive feature development.