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データ抽出

データ抽出により、非構造化テキストを解析し、AIを使用して構造化データを抽出できます。これは、自由形式のテキストをアプリケーションで使用できる型付きオブジェクトに変換するのに便利です。

以下の例は、非構造化製品説明から製品詳細を抽出する方法を示しています。AIモデルはテキストを分析し、製品名、概要、価格、およびカテゴリを含む構造化オブジェクトを返します。

amplify/data/resource.ts
const schema = a.schema({
  ProductDetails: a.customType({
    name: a.string().required(),
    summary: a.string().required(),
    price: a.float().required(),
    category: a.string().required(),
  extractProductDetails: a.generation({
    aiModel: a.ai.model('Claude 3.5 Haiku'),
    systemPrompt: 'Extract the property details from the text provided',
    .arguments({
      productDescription: a.string()
    .returns(a.ref('ProductDetails'))
    .authorization((allow) => allow.authenticated()),

Data Client Request
import type { Schema } from "../amplify/data/resource";
import { generateClient } from "aws-amplify/api";
export const client = generateClient<Schema>();
const productDescription = `The NBA Official Game Basketball is a premium
regulation-size basketball crafted with genuine leather and featuring
official NBA specifications. This professional-grade ball offers superior grip
and durability, with deep channels and a moisture-wicking surface that ensures
consistent performance during intense game play. Priced at $159.99, this high-end
basketball belongs in our Professional Sports Equipment category and is the same model
used in NBA games.`
const { data, errors } = await client.generations
  .extractProductDetails({ productDescription })
Example response:
  "name": "NBA Official Game Basketball",
  "summary": "Premium regulation-size NBA basketball made with genuine leather. Features official NBA specifications, superior grip, deep channels, and moisture-wicking surface for consistent game play performance.",
  "price": 159.99,
  "category": "Professional Sports Equipment"