Optimizer

A plugin type: Apply modifications to the finished bundle

Optimizers are similar to transformers, but they accept a bundle instead of a single asset. At this stage, any ASTs have already been serialized.

import { Optimizer } from "@parcel/plugin";

export default new Optimizer({
  async optimize({ bundle, contents, map }) {
    let result = minifyCode(contents, map);
    return { contents: result.contents, map: result.contents };
  },
});

¶ Relevant API

Optimizer website/generate-api-docs/example.flow:1096

type Optimizer = {|

  optimize({|
    bundle: NamedBundle,
    contents: Blob,
    map: ?SourceMap,
    options: PluginOptions,
    logger: PluginLogger,
    getSourceMapReference: (map: ?SourceMap) => Async<?string>,
  |}): Async<BundleResult>,

|}