# @comunica/actor-dereference-fallback

> A fallback dereference actor

Latest version **5.4.0** (published 2026-09-14) · MIT license · 0 weekly downloads

## Install

```sh
npm install @comunica/actor-dereference-fallback
pnpm add @comunica/actor-dereference-fallback
yarn add @comunica/actor-dereference-fallback
bun add @comunica/actor-dereference-fallback
```

## Health

**Score 60/100 (C)** — status: active.

Positive: has types; no vulnerabilities; recently updated; high maintenance score.

Warnings: low downloads; no esm support.

## Facts

| | |
|---|---|
| Version | 5.4.0 |
| Published | 2026-09-14 |
| First published | 2022-02-08 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | CommonJS |
| Dependencies | 2 |
| Unpacked size | 17.4 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 592 |
| Maintainers | joachimvh, rubensworks, rubenverborgh, dexagod, jeswr |
| Keywords | comunica, actor, dereference, fallback |

## Links

- npm: https://www.npmjs.com/package/@comunica/actor-dereference-fallback
- Repository: https://github.com/comunica/comunica
- Homepage: https://comunica.dev/
- Issues: https://github.com/comunica/comunica/issues
- Funding: https://opencollective.com/comunica-association
- npm.io page: https://npm.io/package/@comunica/actor-dereference-fallback

## Dependencies (2)

- [@comunica/core](https://npm.io/package/@comunica/core.md) ^5.4.0
- [@comunica/bus-dereference](https://npm.io/package/@comunica/bus-dereference.md) ^5.4.0

## Recent versions

- 5.4.0 (latest) — 2026-09-14
- 4.4.2-alpha.49.0 (next) — 2025-10-22
- 5.3.0 — 2026-07-10
- 5.2.3 — 2026-05-26
- 5.2.2 — 2026-05-03
- 5.2.0 — 2026-04-14
- 5.1.3 — 2026-01-30
- 5.1.0 — 2026-01-16
- 5.0.3 — 2026-01-12
- 5.0.2 — 2026-01-12
- 5.0.0 — 2026-01-08
- 4.5.0 — 2025-11-18
- 4.4.1 — 2025-09-25
- 4.4.0 — 2025-09-17
- 4.2.0 — 2025-04-29
- … 69 more at https://npm.io/package/@comunica/actor-dereference-fallback/versions

## README

# Comunica Fallback Dereference Actor

[![npm version](https://badge.fury.io/js/%40comunica%2Factor-dereference-fallback.svg)](https://www.npmjs.com/package/@comunica/actor-dereference-fallback)

A [Dereference](https://github.com/comunica/comunica/tree/master/packages/bus-dereference) actor that always fails.
This can be used as a fallback actor in the Dereference bus.
Concretely, it accepts any action in its test phase, but rejects all actions in its run phase.
If lenient mode is enabled, the rejection will be silenced.

This module is part of the [Comunica framework](https://github.com/comunica/comunica),
and should only be used by [developers that want to build their own query engine](https://comunica.dev/docs/modify/).

[Click here if you just want to query with Comunica](https://comunica.dev/docs/query/).

## Install

```bash
$ yarn add @comunica/actor-dereference-fallback
```

## Configure

After installing, this package can be added to your engine's configuration as follows:
```text
{
  "@context": [
    ...
    "https://linkedsoftwaredependencies.org/bundles/npm/@comunica/actor-dereference-fallback/^5.0.0/components/context.jsonld"
  ],
  "actors": [
    ...
    {
      "@id": urn:comunica:default:dereference/actors#fallback,
      "@type": "ActorDereferenceFallback"
    }
  ]
}
```

---
_Source: https://npm.io/package/@comunica/actor-dereference-fallback · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._