Asset manifest reference

Prefer the generated build and compiler. This reference explains their portable output so you can extend your package’s build without inventing a second protocol. Import PHP types from Bjanczak\FilamentFlexFields\Support\Assets\Manifest.

AssetManifest

Parameter	Default	Meaning
`package`	Required	Composer `vendor/package` identity, up to 192 characters.
`artifacts`	Required	Map of artifact identity to `AssetArtifact`, containing 1–4096 outputs.
`entries`	`[]`	Logical module/Alpine entry ID → artifact ID.
`styles`	`[]`	Owned stylesheet ID → stylesheet artifact ID.
`helpers`	`[]`	SSR classic-script helper ID → Script artifact ID.

The manifest format is 1. Its release is derived from canonical complete build metadata. Portable metadata excludes deployment URLs and installed source roots. Paths cannot collide case-insensitively, traverse directories or refer to missing outputs. Keep artifact IDs and logical component/root IDs separate.

AssetArtifact

Parameter	Default	Meaning
`path`	Required	Safe build-output path relative to the installed release root.
`type`	Required	Explicit `ArtifactKind`; the file extension must match.
`sha256`	Required	Lowercase 64-character SHA-256 of the output bytes.
`bytes`	Required	Nonnegative exact file size.
`imports`	`[]`	Static module/CSS dependency artifact IDs in build order.
`dynamicImports`	`[]`	Lazy module dependency IDs; they do not become eager preloads.
`resources`	`[]`	Linked workers, fonts, WASM and other resource outputs.

ArtifactKind	Value	Common output
`Module`	`module`	`.js`, `.mjs` ESM
`Stylesheet`	`stylesheet`	`.css`
`Script`	`script`	Classic `.js` SSR helper
`Worker`	`worker`	`.js`, `.mjs` worker
`Wasm`	`wasm`	`.wasm`
`Font`	`font`	`.woff`, `.woff2`, `.ttf`, `.otf`
`Image`	`image`	PNG/JPEG/WebP/AVIF/GIF/SVG
`Audio`	`audio`	MP3/WAV/OGG/M4A/AAC/FLAC
`Video`	`video`	MP4/WebM/MOV
`Data`	`data`	`.json`
`Binary`	`binary`	`.bin`, `.onnx`

Use type declarations for resources the bundler cannot infer. Do not label a classic script as a module or assume a worker is a normal eagerly executed entry.

AssetPackage

Parameter	Meaning
`manifest`	Valid typed portable manifest loaded by your provider.
`sourceRoot`	Local installed directory containing every referenced artifact.

sourcePath($artifact) resolves a safe existing installed output. publicDirectory($prefix = '') describes its immutable publication namespace; moduleIdentity($artifact) supplies a package-scoped asset identity. sameInstallationAs() compares package, release and installed root.

Esbuild declaration

The compiler’s declaration contains the following root fields:

Field	Use
`format`	Declaration format `1`.
`package`	Composer package name.
`entries`	Logical module ID → emitted output path.
`styles`	Owned style ID → emitted CSS path.
`helpers`	SSR helper ID → emitted classic script path.
`types`	Explicit artifact type overrides for outputs such as workers.
`resources`	Explicit output-to-linked-output declarations for opaque dependencies.

{
  "format": 1,
  "package": "acme/summary",
  "entries": {"acme-summary-field": "field.js"},
  "styles": {"acme-summary-display": "display.css"},
  "helpers": {},
  "types": {},
  "resources": {}
}

This is an input declaration, not the final generated manifest. Follow the complete build example for workers and WASM, CLI arguments, metafile handling and output validation. Do not hand-edit generated content hashes.

Last modified on October 16, 2026

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Asset manifest reference

AssetManifest

AssetArtifact

AssetPackage

Esbuild declaration

​AssetManifest

​AssetArtifact

​AssetPackage

​Esbuild declaration

AssetManifest

AssetArtifact

AssetPackage

Esbuild declaration