@signature-kit/documenso

Alchemy v2 remote-signature provider for Documenso envelope creation, lookup, listing, cancellation, deletion, and completed-document download.

Install

bun add @signature-kit/documenso @signature-kit/http effect alchemy

effect and alchemy are direct runtime dependencies. Provide signatureHttpClientLive at the stack boundary; providers(options) supplies only Documenso credentials and resource providers.

Public surface

• @signature-kit/documenso — Documenso envelope/document/recipient schemas, DocumensoSignatureRequest, DocumensoProviders, providers, getDocumensoSignatureRequest, listDocumensoSignatureRequests, cancelDocumensoSignatureRequest, deleteDocumensoSignatureRequest, and downloadDocumensoSignedDocument.

Capability matrix:

| Capability | Supported | | -------------------------------- | ------------------------------------------------------------------------- | | Create retained Alchemy envelope | Yes | | Get envelope | Yes | | List envelopes | Yes | | Cancel envelope | Yes | | Delete envelope | Yes | | Download signed document | Yes, after the envelope is completed and an envelope item id is available |

Retained-resource semantics: Alchemy reconcile creates once and returns cached output on subsequent plans; provider list returns []; nuke is skipped. Multi-step create rollback deletes remote state only after unambiguous pre-effect 4xx failures, excluding 408, 409, 429, 5xx, timeouts, and response-shape failures.

Example

import * as Alchemy from "alchemy";
import {
  DocumensoSignatureRequest,
  downloadDocumensoSignedDocument,
  providers as documensoProviders,
  type DocumensoProviderOptions,
} from "@signature-kit/documenso";
import { signatureHttpClientLive } from "@signature-kit/http";
import { Effect, Layer, Redacted } from "effect";

declare const pdfBase64: string;
declare const apiKey: string;

const options: DocumensoProviderOptions = {
  apiKey: Redacted.make(apiKey),
};

export default class Contracts extends Alchemy.Stack<Contracts>()(
  "Contracts",
  {
    providers: Layer.merge(documensoProviders(options), signatureHttpClientLive),
    state: Alchemy.inMemoryState(),
  },
  Effect.gen(function* () {
    return yield* DocumensoSignatureRequest("service-agreement", {
      title: "Service agreement",
      documents: [
        { fileName: "contract.pdf", mimeType: "application/pdf", contentBase64: pdfBase64 },
      ],
      recipients: [{ name: "Ada Lovelace", email: "[email protected]", role: "signer" }],
      send: true,
    });
  }),
) {}

export const downloadSigned = (envelopeId: string) =>
  downloadDocumensoSignedDocument(options, envelopeId).pipe(
    Effect.provide(signatureHttpClientLive),
  );

Errors and i18n

Invalid inputs, remote HTTP failures, unsupported operations, and invalid response shapes fail as SignatureKitError from @signature-kit/signatures. Applications can render localized copy through errorMessage from @signature-kit/i18n with the signatureKitErrorMessages catalog from @signature-kit/signatures.

Docs: https://signaturekit.dev/en-US/docs/providers/documenso.

License

MIT. See LICENSE.