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payload-webp

payloadcms/payload plugin for automatic image conversion to webp format.

Getting started

1. Add sharp to resolutions field in package.json to prevent versions mismatch*:

  "resolutions": {
    "sharp": "latest"
  }

*PayloadCMS' sharp dependency version is often behind. This is a problem since sharp does not work with multiple versions in a single project and old versions are also a security risk. Solution is setting the wanted sharp version in resolutions field.

2. Install the package with npm i payload-webp OR yarn add payload-webp

3. Import the plugin to your payload.config.ts:

import webp from "payload-webp";

// you may use this as fallback in your resizeOptsFactory
import { defaultResizeFactory } from "payload-webp";

export default buildConfig({
  ...
  plugins: [
      webp(webpPluginOptions)
  ]
)};

4. After uploading images to your upload-enabled collection new field called webp is added with converted image => webp file meteadata and its sizes. Access webp field with graphql like so:

query {
  allMedia {
    docs {
      url               # url of original file [jpeg/png/webp]
      filesize          # filesize of original file
      webp {
        url             # url of webp processed file [webp]
        filesize        # filesize of webp processed file
        sizes {
          thumbnail {
            width
            height
            url
          }
        }
      }
    }
  }
}

By default webp images are being processed to reduce their filesize as well.

Plugin options

Optionally you can pass JSON with following plugin options to tweak compression or limit conversion to particular mimeTypes or specific upload-enabled collections.

interface WebpPluginOptions {
  /**
   * Function that takes current image size to be resized and returns a sharp resize options object.
   * Can be used to modify particular image size sizing, cropping, fitting etc.
   *
   * Example:
```JS
  resize: (imageSize) => {
      // fit to preserve aspect ratio if image size is xs
      if (imageSize.name === 'xs') {
        return {
          width: imageSize.width,
          height: imageSize.width,
          options: {
            fit: "inside"
          }
        }
      }
      // fallback to payload's default behavior
      return defaultResizeFactory(imageSize);
  }
```*/
  resizeOptsFactory?: (imageSize: ImageSize) => {
    width: number;
    height: number;
    options?: sharp.ResizeOptions;
  };

  /**
   *  If present the main webp image will be sized to the given dimensions.
   */
  maxResizeOpts?: { width?: number; height?: number; options?: sharp.ResizeOptions };

  /**
   * Which mime types convert to webp.
   * Defaults to: ```["image/jpeg", "image/png", "image/webp"]```
   *
   * ***image/webp** is compressed*
   */
  mimeTypes?: string[];

  /**
   * sharp webp options
   * defaults to:
   * ```
   * {
   *    nearLossless: true,
   *    quality: 50,
   *    force: true,
   * }```
   */
  sharpWebpOptions?: sharp.WebpOptions;

  /**
   * Array of collection slugs that should have images converted to webp.
   * By default all collections with upload property will convert images to webp.
   */
  collections?: CollectionConfig['slug'][];

  /**
   * By default image conversion happens asynchronously in the background for faster UX.
   * By switching this flag the hook and following request response will await for the image conversion.
   */
  sync?: boolean;

  /**
   * When true log messages for debugging purposes.
   */
  debug?: boolean;

  /**
   * Filename conflict behavior.
   *
   * When ```true``` the existing files will be overwritten.
   *
   * When ```false``` ```+i``` will be added to the filename.
   *
   */
  overwrite?: boolean;

/**
 * Default: When ```false``` EXIF metadata will be removed in the output.
 *
 * When ```true``` EXIF metadata will be kept in the output.
 * _```orientation``` tag will be striped in either case as the image will be rotated based on its value during processing._
 */
  metadata?: boolean;

    /**
   * Hooks that run for each file at specific processing step.
   */
  hooks?: {
    /**
     * This hook is run immediatelly after image conversion. The converted image file is in memory in ```bufferObject``` property.
     * You can use this hook to store the files in the cloud.
     */
    afterConversion?: (result: ResultObject) => any;
    /**
     * This hook is run immediatelly after storing files successfully. The converted image file is still in the memory in ```bufferObject``` property.
     * You can use this hook to run post-processing on the stored file.
     */
    afterStorage?: (result: ResultObject) => any;
  };
}

---

Regenerate Webp images

You can regenerate existing images with following GraphQL mutation:

mutation {
  WebpRegenerate(slug: String!, sort: String) {
    currentFile
    current
    total
  }
}

Arguments

Argument	Description
slug	Upload collection slug in camelCase
sort	You can pass the sort parameter to set the direction in which images will be regenerated. Default: createdAt

Fields and subsequent calls

You can use returned fields to show notify of current progress to user. Any subsequent call while regeneration of particular collection is in the progress will not start new regeneration process, but will return current progress.

Buffer objects

You can access each buffer object of processed image in hooks that you can set by Plugin Options. This way your adapter can store the files with external provider for an instance.