@plaiceholder/base64/dist/index.umd.js

Roll-you-own Base64 placeholders.

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('sharp')) :
  typeof define === 'function' && define.amd ? define(['exports', 'sharp'], factory) :
  (global = global || self, factory(global.base64 = {}, global.sharp));
}(this, (function (exports, sharp) {
  sharp = sharp && Object.prototype.hasOwnProperty.call(sharp, 'default') ? sharp['default'] : sharp;

  var getBase64 = function getBase64(imageBuffer) {
    try {
      return Promise.resolve(new Promise(function (resolve, reject) {
        sharp(imageBuffer).normalise().modulate({
          saturation: 1.2,
          brightness: 1
        }).removeAlpha().resize(10, 10, {
          fit: "inside"
        }).toBuffer({
          resolveWithObject: true
        }).then(function (_ref) {
          var data = _ref.data,
              info = _ref.info;
          var format = info.format;
          var base64 = "data:image/" + format + ";base64," + data.toString("base64");
          resolve(base64);
        })["catch"](function (err) {
          if (err) return reject(err);
        });
      }));
    } catch (e) {
      return Promise.reject(e);
    }
  };

  exports.getBase64 = getBase64;

})));
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