Repo Website API Create

Adding New API Documentation

This skill provides instructions for adding new API reference routes to the Formisch website. Consistency and uniformity across all API documentation is critical.

Key Principle: Source code is the single source of truth. All documentation is derived directly from the source code.

Quick Overview

Each API function or type needs its own folder containing:

• index.mdx - The main documentation file with MDX content
• properties.ts - TypeScript definitions that map to the Property component

Step-by-Step Process

Step 1: Identify the API

Before creating documentation:

1. Category: Is it a core type, framework primitive/hook/composable/rune, framework type, component, or method?
2. Name: The exact function/type name (camelCase for functions, PascalCase for types/components)
3. Source file: Path to the source code in the monorepo
4. Dependencies: Related types, primitives, or methods

Step 2: Read the Source Code

This is the most critical step. Read the entire source file and extract:

1. Interfaces and Types - Exported type definitions with generic parameters
2. Function Signatures - All overloads (not implementations)
3. JSDoc Comments - Descriptions, param tags, hints
4. Generic Constraints - extends clauses
5. Return Types - Interface names with generics

Step 3: Create the Documentation Folder

Create folder in the appropriate category:

/website/src/routes/(docs)/{framework}/api/(category)/{ApiName}/
├── index.mdx
└── properties.ts

Categories by framework:

• core/api/(types) - Core/shared type definitions
• methods/api/ - Global methods (focus, validate, reset, etc.)
• solid/api/(primitives) - SolidJS primitives (createForm, useField)
• solid/api/(components) - SolidJS components (Field, Form)
• solid/api/(types) - SolidJS-specific types
• qwik/api/(hooks) - Qwik hooks (useForm$, useField)
• preact/api/(hooks) - Preact hooks
• react-native/api/(hooks) - React Native hooks (useForm, useField)
• angular/api/(functions) - Angular functions (injectForm, injectField)
• angular/api/(directives) - Angular directives (formischForm, formischField)
• angular/api/(types) - Angular-specific types (FormStore, FieldStore, SignalOrValue)
• svelte/api/(runes) - Svelte 5 runes
• vue/api/(composables) - Vue composables

Step 4: Create properties.ts

See references/property-component.md for the Property component specification and type mapping patterns.

import type { PropertyProps } from '~/components';

export const properties: Record<string, PropertyProps> = {
  // 1. GENERICS - always with modifier: 'extends'
  TSchema: {
    modifier: 'extends',
    type: {
      type: 'custom',
      name: 'FormSchema',
      href: '/core/api/FormSchema/',
    },
  },

  // Generics without a constraint in the source default to `extends unknown`
  TValue: {
    modifier: 'extends',
    type: 'unknown',
  },

  // 2. PARAMETERS - matching function signature
  config: {
    type: {
      type: 'custom',
      name: 'FormConfig',
      href: '../FormConfig/',
      generics: [{ type: 'custom', name: 'TSchema' }],
    },
  },

  // 3. RETURN TYPE
  Store: {
    type: {
      type: 'custom',
      name: 'FormStore',
      href: '../FormStore/',
      generics: [{ type: 'custom', name: 'TSchema' }],
    },
  },
};

Step 5: Create index.mdx

See references/mdx-patterns.md for detailed MDX structure and patterns.

---
title: createForm
description: Creates a reactive form store from a form configuration.
source: /frameworks/solid/src/primitives/createForm/createForm.ts
contributors:
  - fabian-hiller
---

import { ApiList, Property } from '~/components';
import { properties } from './properties';

# createForm

Creates a reactive form store from a form configuration.

\`\`\`ts
const form = createForm<TSchema>(config);
\`\`\`

## Generics

- `TSchema` <Property {...properties.TSchema} />

## Parameters

- `config` <Property {...properties.config} />

### Explanation

With `createForm` you can create a reactive form store...

## Returns

- `form` <Property {...properties.Store} />

## Examples

The following examples show how `createForm` can be used.

### Basic form

\`\`\`ts
import { createForm } from '@formisch/solid';
import \* as v from 'valibot';

const LoginSchema = v.object({
email: v.pipe(v.string(), v.email()),
password: v.pipe(v.string(), v.minLength(8)),
});

const loginForm = createForm({ schema: LoginSchema });
\`\`\`

## Related

### Primitives

<ApiList
  items={[
    { text: 'useField', href: '../useField/' },
    { text: 'useFieldArray', href: '../useFieldArray/' },
  ]}
/>

### Components

<ApiList
  items={[
    { text: 'Form', href: '../Form/' },
    { text: 'Field', href: '../Field/' },
  ]}
/>

Step 6: Update menu.md

Add to the appropriate menu.md file in alphabetical order:

## Primitives

- [createForm](/solid/api/createForm/)
- [useField](/solid/api/useField/)

Documentation Types

Function Documentation

• Function signature code block
• Generics section (if applicable)
• Parameters section (use "Parameters" heading)
• Explanation section (required)
• Returns section (if not void)
• Examples section (required, 2-4 progressive examples)
• Related section

Component Documentation

• Component signature code block
• Generics section (if applicable)
• Properties section (use "Properties" heading)
• Explanation section (required)
• NO Returns section
• NO Examples section
• Related section

Type Documentation

• Type name and description
• Generics section (if applicable)
• Definition section listing properties
• Explanation section (only if semantically important)
• NO Examples section
• Related section (Primitives/Components/Methods only, never Types)

Important Rules

URL Patterns

Parentheses folders don't appear in URLs:

• /solid/api/createForm/ (not /solid/api/(primitives)/createForm/)

Link Patterns

• Relative paths within same section: ../FormStore/
• Absolute paths for cross-package: /core/api/FormSchema/
• External links for Valibot: https://valibot.dev/api/InferInput/

Framework-Specific Terminology

References

For detailed patterns and examples, see:

• references/property-component.md - Property component and type mapping
• references/mdx-patterns.md - MDX structure and patterns
• references/examples.md - Code example conventions

Checklist

Before submitting:

• Read source file completely
• All generics documented with correct constraints
• All parameters documented with correct types
• Return type documented
• Custom types link to their documentation (href)
• Function signature matches source exactly
• Examples are realistic and follow naming conventions
• Related section uses correct framework terminology
• menu.md updated in alphabetical order
• No typos or grammatical errors