@sanity/asset-utils

Reusable utility functions for dealing with image and file assets in Sanity

Installing

$ npm install @sanity/asset-utils

Usage

// ESM / TypeScript
import {someUtilityFunction} from '@sanity/asset-utils'

// CommonJS
const {someUtilityFunction} = require('@sanity/asset-utils')

Documentation

An HTML version is also available, which also includes interface definitions, constants and more.### Functions

• buildFilePath
• buildFileUrl
• buildImagePath
• buildImageUrl
• getAssetDocumentId
• getDefaultCrop
• getDefaultHotspot
• getExtension
• getFile
• getFileAsset
• getIdFromString
• getImage
• getImageAsset
• getImageDimensions
• getProject
• getUrlFilename
• getUrlPath
• hasPath
• idFromUrl
• isAssetFilename
• isAssetIdStub
• isAssetObjectStub
• isAssetPathStub
• isAssetUrlStub
• isFileAssetFilename
• isFileSource
• isImageAssetFilename
• isImageSource
• isReference
• isSanityFileAsset
• isUnresolvableError
• isValidFilename
• parseAssetFilename
• parseAssetId
• parseFileAssetId
• parseImageAssetId
• tryGetAssetDocumentId
• tryGetAssetPath
• tryGetExtension
• tryGetFile
• tryGetFileAsset
• tryGetIdFromString
• tryGetImage
• tryGetImageAsset
• tryGetImageDimensions
• tryGetProject
• tryGetUrlFilename
• tryGetUrlPath

buildFilePath

▸ buildFilePath(asset: FileUrlBuilderOptions, project: SanityProjectDetails): string

Builds the base file path from the minimal set of parts required to assemble it

Name	Type	Description
asset	FileUrlBuilderOptions	An asset-like shape defining ID, dimensions and extension
project	SanityProjectDetails	Project ID and dataset the file belongs to

Returns: string

Defined in src/paths.ts:57

buildFileUrl

▸ buildFileUrl(asset: FileUrlBuilderOptions, project: SanityProjectDetails): string

Builds the base file URL from the minimal set of parts required to assemble it

Name	Type	Description
asset	FileUrlBuilderOptions	An asset-like shape defining ID and extension
project	SanityProjectDetails	Project ID and dataset the file belongs to

Returns: string

Defined in src/paths.ts:78

buildImagePath

▸ buildImagePath(asset: ImageUrlBuilderOptions, project: SanityProjectDetails): string

Builds the base image path from the minimal set of parts required to assemble it

Name	Type	Description
asset	ImageUrlBuilderOptions	An asset-like shape defining ID, dimensions and extension
project	SanityProjectDetails	Project ID and dataset the image belongs to

Returns: string

Defined in src/paths.ts:21

buildImageUrl

▸ buildImageUrl(asset: ImageUrlBuilderOptions, project: SanityProjectDetails): string

Builds the base image URL from the minimal set of parts required to assemble it

Name	Type	Description
asset	ImageUrlBuilderOptions	An asset-like shape defining ID, dimensions and extension
project	SanityProjectDetails	Project ID and dataset the image belongs to

Returns: string

Defined in src/paths.ts:43

getAssetDocumentId

▸ getAssetDocumentId(src: SanityAssetSource): string

Tries to resolve the asset document ID from any inferrable structure

Name	Type	Description
src	SanityAssetSource	Input source (image/file object, asset, reference, id, url, path)

Returns: string

Defined in src/resolve.ts:291

getDefaultCrop

▸ getDefaultCrop(): SanityImageCrop

Returns cloned version of the default crop (prevents accidental mutations)

Name	Type

Returns: SanityImageCrop

Defined in src/resolve.ts:65

getDefaultHotspot

▸ getDefaultHotspot(): SanityImageHotspot

Returns cloned version of the default hotspot (prevents accidental mutations)

Name	Type

Returns: SanityImageHotspot

Defined in src/resolve.ts:72

getExtension

▸ getExtension(src: SanityAssetSource): string

Returns the file extension for a given asset

Name	Type	Description
src	SanityAssetSource	Input source (file/image object, asset, reference, id, url, path)

Returns: string

Defined in src/resolve.ts:108

getFile

▸ getFile(src: SanityFileSource, project: SanityProjectDetails): ResolvedSanityFile

Tries to resolve an file object with as much information as possible, from any inferrable structure (id, url, path, file object etc)

Name	Type	Description
src	SanityFileSource	Input source (file object, asset, reference, id, url, path)
project	SanityProjectDetails	Project ID and dataset the file belongs to

Returns: ResolvedSanityFile

Defined in src/resolve.ts:220

getFileAsset

▸ getFileAsset(src: SanityFileSource, project: SanityProjectDetails): SanityFileAsset

Tries to resolve a (partial) file asset document with as much information as possible, from any inferrable structure (id, url, path, file object etc)

Name	Type	Description
src	SanityFileSource	Input source (file object, asset, reference, id, url, path)
project	SanityProjectDetails	Project ID and dataset the file belongs to

Returns: SanityFileAsset

Defined in src/resolve.ts:245

getIdFromString

▸ getIdFromString(str: string): string

Tries to cooerce a string (ID, URL or path) to an image asset ID

Name	Type	Description
str	string	Input string (ID, URL or path)

Returns: string

Defined in src/resolve.ts:333

getImage

▸ getImage(src: SanityImageSource, project: SanityProjectDetails): ResolvedSanityImage

Tries to resolve an image object with as much information as possible, from any inferrable structure (id, url, path, image object etc)

Name	Type	Description
src	SanityImageSource	Input source (image object, asset, reference, id, url, path)
project	SanityProjectDetails	Project ID and dataset the image belongs to

Returns: ResolvedSanityImage

Defined in src/resolve.ts:133

getImageAsset

▸ getImageAsset(src: SanityImageSource, project: SanityProjectDetails): SanityImageAsset

Tries to resolve a (partial) image asset document with as much information as possible, from any inferrable structure (id, url, path, image object etc)

Name	Type	Description
src	SanityImageSource	Input source (image object, asset, reference, id, url, path)
project	SanityProjectDetails	Project ID and dataset the image belongs to

Returns: SanityImageAsset

Defined in src/resolve.ts:167

getImageDimensions

▸ getImageDimensions(src: SanityImageSource): SanityImageDimensions

Returns the width, height and aspect ratio of a passed image asset, from any inferrable structure (id, url, path, asset document, image object etc)

Name	Type	Description
src	SanityImageSource	Input source (image object, asset, reference, id, url, path)

Returns: SanityImageDimensions

Defined in src/resolve.ts:84

getProject

▸ getProject(src: SanityImageSource): SanityProjectDetails

Resolves project ID and dataset the image belongs to, based on full URL or path

Name	Type
src	SanityImageSource

Returns: SanityProjectDetails

Defined in src/resolve.ts:391

getUrlFilename

▸ getUrlFilename(url: string): string

Strips the CDN URL, path and query params from a URL, eg: https://cdn.sanity.io/images/project/dataset/filename-200x200.jpg?foo=bar => filename-200x200.jpg

Name	Type	Description
url	string	URL to get filename from

Returns: string

Defined in src/paths.ts:163

getUrlPath

▸ getUrlPath(url: string): string

Strips the CDN URL and query params from a URL, eg: https://cdn.sanity.io/images/project/dataset/filename-200x200.jpg?foo=bar => images/project/dataset/filename-200x200.jpg

Name	Type	Description
url	string	URL to get path name from

Returns: string

Defined in src/paths.ts:131

hasPath

▸ hasPath(urlOrPath: string): boolean

Checks whether or not the given URL contains an asset path

Name	Type
urlOrPath	string

Returns: boolean

Defined in src/paths.ts:88

idFromUrl

▸ idFromUrl(url: string): string

Converts from a full asset URL to just the asset document ID

Name	Type	Description
url	string	A full asset URL to convert

Returns: string

Defined in src/resolve.ts:376

isAssetFilename

▸ isAssetFilename(filename: string): boolean

Returns whether or not the passed filename is a valid file or image asset filename

Name	Type	Description
filename	string	Filename to validate

Returns: boolean

Defined in src/resolve.ts:439

isAssetIdStub

▸ isAssetIdStub(stub: unknown): stub is SanityAssetIdStub

Checks whether or not the given source is an asset ID stub (an object containing an _id property)

Name	Type	Description
stub	unknown	Possible asset id stub

Returns: stub is SanityAssetIdStub

Defined in src/types.ts:108

isAssetObjectStub

▸ isAssetObjectStub(stub: unknown): stub is SanityAssetObjectStub

Checks whether or not the given source is an asset object stub

Name	Type	Description
stub	unknown	Possible asset object stub

Returns: stub is SanityAssetObjectStub

Defined in src/types.ts:251

isAssetPathStub

▸ isAssetPathStub(stub: unknown): stub is SanityAssetPathStub

Checks whether or not the given source is an asset path stub (an object containing a path property)

Name	Type	Description
stub	unknown	Possible asset path stub

Returns: stub is SanityAssetPathStub

Defined in src/types.ts:123

isAssetUrlStub

▸ isAssetUrlStub(stub: unknown): stub is SanityAssetUrlStub

Checks whether or not the given source is an asset URL stub (an object containing a url property)

Name	Type	Description
stub	unknown	Possible asset url stub

Returns: stub is SanityAssetUrlStub

Defined in src/types.ts:138

isFileAssetFilename

▸ isFileAssetFilename(filename: string): boolean

Returns whether or not the passed filename is a valid file asset filename

Name	Type	Description
filename	string	Filename to validate

Returns: boolean

Defined in src/resolve.ts:429

isFileSource

▸ isFileSource(src: SanityAssetSource): src is SanityFileSource

Name	Type
src	SanityAssetSource

Returns: src is SanityFileSource

Defined in src/resolve.ts:443

isImageAssetFilename

▸ isImageAssetFilename(filename: string): boolean

Returns whether or not the passed filename is a valid image asset filename

Name	Type	Description
filename	string	Filename to validate

Returns: boolean

Defined in src/resolve.ts:419

isImageSource

▸ isImageSource(src: SanityAssetSource): src is SanityImageSource

Name	Type
src	SanityAssetSource

Returns: src is SanityImageSource

Defined in src/resolve.ts:448

isReference

▸ isReference(ref: unknown): ref is SanityReference

Checks whether or not the given source is a Sanity reference (an object containing _ref string key)

Name	Type	Description
ref	unknown	Possible reference

Returns: ref is SanityReference

Defined in src/types.ts:93

isSanityFileAsset

▸ isSanityFileAsset(src: unknown): src is SanityFileAsset

Checks whether or not the given source is a (partial) sanity file asset document. Only checks the _type property, all other properties may be missing

Name	Type	Description
src	unknown	Source to check

Returns: src is SanityFileAsset

Defined in src/types.ts:169

isUnresolvableError

▸ isUnresolvableError(err: Error): err is UnresolvableError

Checks whether or not an error instance is of type UnresolvableError

Name	Type	Description
err	Error	Error to check for unresolvable error type

Returns: err is UnresolvableError

Defined in src/utils.ts:36

isValidFilename

▸ isValidFilename(filename: string): boolean

Checks whether or not a given filename matches the expected Sanity asset filename pattern

Name	Type	Description
filename	string	Filename to check for validity

Returns: boolean

Defined in src/paths.ts:187

parseAssetFilename

▸ parseAssetFilename(filename: string): SanityAssetIdParts

Parses a Sanity asset filename into individual parts (type, id, extension, width, height)

Name	Type	Description
filename	string	Filename to parse into named parts

Returns: SanityAssetIdParts

Defined in src/parse.ts:77

parseAssetId

▸ parseAssetId(documentId: string): SanityAssetIdParts

Parses a Sanity asset document ID into individual parts (type, id, extension, width/height etc)

Name	Type	Description
documentId	string	Document ID to parse into named parts

Returns: SanityAssetIdParts

Defined in src/parse.ts:22

parseFileAssetId

▸ parseFileAssetId(documentId: string): SanityFileAssetIdParts

Parses a Sanity file asset document ID into individual parts (type, id, extension)

Name	Type	Description
documentId	string	File asset document ID to parse into named parts

Returns: SanityFileAssetIdParts

Defined in src/parse.ts:41

parseImageAssetId

▸ parseImageAssetId(documentId: string): SanityImageAssetIdParts

Parses a Sanity image asset document ID into individual parts (type, id, extension, width, height)

Name	Type	Description
documentId	string	Image asset document ID to parse into named parts

Returns: SanityImageAssetIdParts

Defined in src/parse.ts:59

tryGetAssetDocumentId

▸ tryGetAssetDocumentId(src: SanityAssetSource): string

Tries to resolve the asset document ID from any inferrable structure

Name	Type	Description
src	SanityAssetSource	Input source (image/file object, asset, reference, id, url, path)

Returns: string

Defined in src/resolve.ts:321

tryGetAssetPath

▸ tryGetAssetPath(src: SanityAssetSource): string | undefined

Tries to get the asset path from a given asset source

Name	Type	Description
src	SanityAssetSource	The source image to infer an asset path from

Returns: string | undefined

Defined in src/paths.ts:98

tryGetExtension

▸ tryGetExtension(src: SanityAssetSource): string

Returns the file extension for a given asset

Name	Type	Description
src	SanityAssetSource	Input source (file/image object, asset, reference, id, url, path)

Returns: string

Defined in src/resolve.ts:120

tryGetFile

▸ tryGetFile(src: SanityFileSource, project: SanityProjectDetails): ResolvedSanityFile

Tries to resolve an file object with as much information as possible, from any inferrable structure (id, url, path, file object etc)

Name	Type	Description
src	SanityFileSource	Input source (file object, asset, reference, id, url, path)
project	SanityProjectDetails	Project ID and dataset the file belongs to

Returns: ResolvedSanityFile

Defined in src/resolve.ts:232

tryGetFileAsset

▸ tryGetFileAsset(src: SanityFileSource, project: SanityProjectDetails): SanityFileAsset

Tries to resolve a (partial) file asset document with as much information as possible, from any inferrable structure (id, url, path, file object etc)

Name	Type	Description
src	SanityFileSource	Input source (file object, asset, reference, id, url, path)
project	SanityProjectDetails	Project ID and dataset the file belongs to

Returns: SanityFileAsset

Defined in src/resolve.ts:280

tryGetIdFromString

▸ tryGetIdFromString(str: string): string

Tries to cooerce a string (ID, URL or path) to an image asset ID

Name	Type	Description
str	string	Input string (ID, URL or path)

Returns: string

Defined in src/resolve.ts:368

tryGetImage

▸ tryGetImage(src: SanityImageSource, project: SanityProjectDetails): ResolvedSanityImage

Tries to resolve an image object with as much information as possible, from any inferrable structure (id, url, path, image object etc)

Name	Type	Description
src	SanityImageSource	Input source (image object, asset, reference, id, url, path)
project	SanityProjectDetails	Project ID and dataset the image belongs to

Returns: ResolvedSanityImage

Defined in src/resolve.ts:154

tryGetImageAsset

▸ tryGetImageAsset(src: SanityImageSource, project: SanityProjectDetails): SanityImageAsset

Tries to resolve a (partial) image asset document with as much information as possible, from any inferrable structure (id, url, path, image object etc)

Name	Type	Description
src	SanityImageSource	Input source (image object, asset, reference, id, url, path)
project	SanityProjectDetails	Project ID and dataset the image belongs to

Returns: SanityImageAsset

Defined in src/resolve.ts:207

tryGetImageDimensions

▸ tryGetImageDimensions(src: SanityImageSource): SanityImageDimensions

Returns the width, height and aspect ratio of a passed image asset, from any inferrable structure (id, url, path, asset document, image object etc)

Name	Type	Description
src	SanityImageSource	Input source (image object, asset, reference, id, url, path)

Returns: SanityImageDimensions

Defined in src/resolve.ts:97

tryGetProject

▸ tryGetProject(src: SanityImageSource): SanityProjectDetails

Resolves project ID and dataset the image belongs to, based on full URL or path

Name	Type
src	SanityImageSource

Returns: SanityProjectDetails

Defined in src/resolve.ts:411

tryGetUrlFilename

▸ tryGetUrlFilename(url: string): string

Strips the CDN URL, path and query params from a URL, eg: https://cdn.sanity.io/images/project/dataset/filename-200x200.jpg?foo=bar => filename-200x200.jpg

Name	Type	Description
url	string	URL to get filename from

Returns: string

Defined in src/paths.ts:179

tryGetUrlPath

▸ tryGetUrlPath(url: string): string

Strips the CDN URL and query params from a URL, eg: https://cdn.sanity.io/images/project/dataset/filename-200x200.jpg?foo=bar => images/project/dataset/filename-200x200.jpg

Name	Type	Description
url	string	URL to get path name from

Returns: string

Defined in src/paths.ts:152

License

MIT-licensed. See LICENSE.