effect-io-ai

Package: effect
Module: SchemaTransformation

SchemaTransformation.fromFormData

Decodes a FormData instance into a nested record using bracket-path keys and encodes object-like values back into FormData.

When to use

Use when you need a schema transformation for form or multipart payloads whose keys, such as user[name] or items[0], should become nested data.

Details

Decode preserves string and Blob leaves. Encode flattens nested objects and arrays into bracket-path entries and returns an empty FormData for non-object inputs.

Example (Decoding FormData)

import { Schema, SchemaTransformation } from "effect"

const schema = Schema.instanceOf(FormData).pipe(
  Schema.decodeTo(Schema.Unknown, SchemaTransformation.fromFormData)
)

See

• fromURLSearchParams
• fromJsonString

Signature

declare const fromFormData: Transformation<unknown, FormData, never, never>

Source

Since v4.0.0