Under the hood Bindings

How Devflare wires Worker Loaders from config to runtime

Worker Loader bindings let a Worker load additional dynamic Workers at runtime.

Worker Loaders compiles from to Wrangler , with local/test behavior called out explicitly.

Use this page when you need emitted config, preview behavior, or Cloudflare-specific limits. The overview and example pages stay focused on everyday app code.

Normalization: Devflare normalizes before emitting Wrangler
Compile target: Wrangler
Preview note: Cloudflare owns dynamic Worker upload, discovery, and hosted lifecycle; local code should pass explicit payloads or stubs.

How authored config becomes Wrangler config

The authored config stays camelCase and project-oriented. The compiler translates that into the Wrangler keys Cloudflare expects.

The emitted output is shown here so the usage pages do not have to explain compiler details.

Worker Loaders config and emitted Wrangler output

Use this when you need to check how the Devflare config becomes Wrangler-compatible config.

import { defineConfig } from 'devflare/config'

export default defineConfig({

name: 'loader-worker',

bindings: {

workerLoaders: {

LOADER: {}

}

})

What local runtime support covers

Full local support through Miniflare Worker Loader bindings and explicit pure-test Worker stubs
The default docs recipe uses with explicit Worker payloads or a pure stub.
Pure unit tests can use / when the test only needs deterministic application behavior.

Compile, preview, and cleanup behavior

Devflare emits Wrangler from the native config surface.
Preview and deployment lifecycle stay feature-specific; do not assume all Cloudflare products can be created, cloned, or cleaned up the same way.
Cloudflare owns dynamic Worker upload, discovery, and hosted lifecycle; local code should pass explicit payloads or stubs.

Cloudflare docs vs the Devflare layer

Cloudflare Dynamic Worker Loaders docs is the platform reference. Use this internals page when you need to compare Cloudflare's product docs with Devflare config, generated env types, local support, and preview behavior for .

Reference

Cloudflare Dynamic Worker Loaders docs

Cloudflare Docs

Platform reference for loading dynamic Workers and arbitrary Worker code at runtime.

Question	Cloudflare docs	This Devflare page
Primary focus	Platform reference for loading dynamic Workers and arbitrary Worker code at runtime.	How to author , what the runtime surface looks like, and how Worker Loaders fits a Devflare project.
Testing and runtime lens	Cloudflare’s docs focus on the raw binding API, product semantics, and platform limits for the binding itself.	Full local support through Miniflare Worker Loader bindings and explicit pure-test Worker stubs. Use the Devflare guidance when you need the honest local harness or the right remote gate instead of only the product API shape.
When to open it	When you need the platform contract, limits, APIs, or account-level product details.	When you are wiring, testing, previewing, or reviewing the binding inside a Devflare app.

Worker Loaders

Add the Worker Loaders config, call from worker code, and start with the local test path Devflare supports.

Testing Worker Loaders

Test Worker Loaders by choosing the local harness that matches the product boundary instead of reaching for Cloudflare by default.