Adapter

Source: src/AWS/Textract/Adapter.ts

An Amazon Textract adapter — a container for custom, trained adapter versions that enhance the pre-trained Queries feature for your specific documents. The adapter itself is cheap metadata (name, feature types, auto-update, tags); versions are trained separately with CreateAdapterVersion against an annotated dataset.

Managing Adapters

Create an adapter for the Queries feature

const adapter = yield* AWS.Textract.Adapter("InvoiceAdapter", {
  featureTypes: ["QUERIES"],
  description: "Tuned for invoice layouts",
  autoUpdate: "ENABLED",
});

Analyze a document with a trained adapter version

const analyzeDocument = yield* AWS.Textract.AnalyzeDocument();
const result = yield* analyzeDocument({
  Document: { S3Object: { Bucket: bucketName, Name: "invoice.pdf" } },
  FeatureTypes: ["QUERIES"],
  QueriesConfig: { Queries: [{ Text: "What is the invoice total?" }] },
  AdaptersConfig: {
    Adapters: [{ AdapterId: adapter.adapterId, Version: "1" }],
  },
});