generateFileUrl must return a string (S3 Storage Plugin)

[mikecebul]

Describe the Bug

It would be nice is generateFileUrl could return a string or null. If I have an image size option larger than the original photo then all the properties in that object are null. But the generateFileUrl will still generate a url like url: 'https://bucket.website.com/media/null'.

I would prefer to check if the filename is null, and if so, return null early.

generateFileURL: (args: any) => {
    if (typeof args.filename !== 'string') return null
    return `https://${process.env.NEXT_PUBLIC_S3_HOSTNAME}/${args.prefix}/${args.filename}`
 },

Then I can't make simple mistakes type checking if the image.sizes.portrait.url exists. Right now I have to make sure I'm always checking if the filename exists, which is weird. Like this.

const imagePortraitUrlIfExists = (image: Media) => {
    if (
      typeof image.sizes?.portrait?.url === 'string' &&
      typeof image.sizes.portrait.filename === 'string'
    )
      return image.sizes.portrait.url
    if (typeof image.url === 'string') return image.url
    return '/placeholder.svg'
  }

Note:

This hack works but I don't understand enough about Typescript to know why.

generateFileURL: (args: any) => {
    if (typeof args.filename !== 'string') return null as unknown as string
    return `https://${process.env.NEXT_PUBLIC_S3_HOSTNAME}/${args.prefix}/${args.filename}`
  },

Link to the code that reproduces this issue

N/A

Reproduction Steps

Create an image size in your Media larger than the image you're going to test with:

{
  name: 'portrait',
  width: 800,
  height: 1000,
  formatOptions: {
    format: 'webp',
  },
  generateImageName: ({ originalName }) => {
    return `${originalName}-portrait`
  },
}

use the S3 plugin:

s3StoragePlugin({
  ...S3_PLUGIN_CONFIG,
  collections: {
    media: {
      disableLocalStorage: true,
      generateFileURL: (args: any) => {
        if (typeof args.filename !== 'string') return null as unknown as string
        return `https://${process.env.NEXT_PUBLIC_S3_HOSTNAME}/${args.prefix}/${args.filename}`
      },
      prefix: 'media',
    },
  },
}),

log the image object:

{
#13 107.1   id: '672a73f47822641e79b94722',
#13 107.1   alt: 'Leah Mayotte profile',
#13 107.1   prefix: 'media',
#13 107.1   filename: 'LeahMayotte_Profile.webp',
#13 107.1   mimeType: 'image/webp',
#13 107.1   filesize: 90748,
#13 107.1   width: 1600,
#13 107.1   height: 1600,
#13 107.1   focalX: 50,
#13 107.1   focalY: 50,
#13 107.1   sizes: {
#13 107.1     thumbnail: {
#13 107.1       width: 300,
#13 107.1       height: 300,
#13 107.1       mimeType: 'image/webp',
#13 107.1       filesize: 10620,
#13 107.1       filename: 'LeahMayotte_Profile-thumbnail',
#13 107.1       url: 'https://bucket.website.com/media/LeahMayotte_Profile-thumbnail'
#13 107.1     },
#13 107.1     portrait: {
#13 107.1       width: null,
#13 107.1       height: null,
#13 107.1       mimeType: null,
#13 107.1       filesize: null,
#13 107.1       filename: null,
#13 107.1       url: 'https://bucket.website.com/media/null' 
#13 107.1     },
#13 107.1     meta: {
#13 107.1       width: 630,
#13 107.1       height: 630,
#13 107.1       mimeType: 'image/webp',
#13 107.1       filesize: 27718,
#13 107.1       filename: 'LeahMayotte_Profile-meta',
#13 107.1       url: 'https://bucket.website.com/media/LeahMayotte_Profile-meta'
#13 107.1     }
#13 107.1   },
#13 107.1   createdAt: '2024-11-05T19:37:24.401Z',
#13 107.1   updatedAt: '2024-11-05T19:37:24.401Z',
#13 107.1   url: 'https://bucket.website.com/media/LeahMayotte_Profile.webp',
#13 107.1   thumbnailURL: '/api/media/file/LeahMayotte_Profile-thumbnail'
#13 107.1 }

Which area(s) are affected? (Select all that apply)

plugin: other

Environment Info

Binaries:
  Node: 20.14.0
  npm: 10.7.0
  Yarn: N/A
  pnpm: 9.7.0
Relevant Packages:
  payload: 3.0.0-beta.126
  next: 15.0.0
  @payloadcms/db-mongodb: 3.0.0-beta.126
  @payloadcms/email-resend: 3.0.0-beta.126
  @payloadcms/graphql: 3.0.0-beta.126
  @payloadcms/live-preview: 3.0.0-beta.126
  @payloadcms/live-preview-react: 3.0.0-beta.126
  @payloadcms/next/utilities: 3.0.0-beta.126
  @payloadcms/plugin-cloud-storage: 3.0.0-beta.126
  @payloadcms/plugin-form-builder: 3.0.0-beta.126
  @payloadcms/plugin-redirects: 3.0.0-beta.126
  @payloadcms/plugin-seo: 3.0.0-beta.126
  @payloadcms/richtext-lexical: 3.0.0-beta.126
  @payloadcms/storage-s3: 3.0.0-beta.126
  @payloadcms/translations: 3.0.0-beta.126
  @payloadcms/ui/shared: 3.0.0-beta.126
  react: 19.0.0-rc-65a56d0e-20241020
  react-dom: 19.0.0-rc-65a56d0e-20241020
Operating System:
  Platform: darwin
  Arch: x64
  Version: Darwin Kernel Version 23.6.0: Mon Jul 29 21:13:00 PDT 2024; root:xnu-10063.141.2~1/RELEASE_X86_64
  Available memory (MB): 8192
  Available CPU cores: 8

[github-actions[bot]]

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Useful Resources

• Reproduction Guide
• Contributing to Payload

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