Types in lib/Server referring to non-existing Request_1 and Response_1 interfaces

[cascornelissen]

Bug report

Actual Behavior

Types in webpack-dev-server/types/lib/Server.d.ts refer to non-existing Request_1 and Response_1 interfaces.

node_modules/webpack-dev-server/types/lib/Server.d.ts:1770:40 - error TS2552: Cannot find name 'Request_1'. Did you mean 'Request'?

1770   devMiddleware?: DevMiddlewareOptions<Request_1, Response_1> | undefined;
                                            ~~~~~~~~~

node_modules/webpack-dev-server/types/lib/Server.d.ts:1770:51 - error TS2552: Cannot find name 'Response_1'. Did you mean 'Response'?

1770   devMiddleware?: DevMiddlewareOptions<Request_1, Response_1> | undefined;

Expected Behavior

Types refer to existing interfaces.

How Do We Reproduce?

Import Configuration from webpack-dev-server (5.0.0 or 5.0.1) and look at the types of Configuration['devMiddleware']. I've prepared this Codesandbox that points directly to the offending type. For some reason the direct link doesn't consistently work for me so an alternative is to go to this link, which points to a different file in the same Codesandbox, and then right-click Configuration and select Go to Definition.

Please paste the results of npx webpack-cli info here, and mention other relevant information

$ npx webpack-cli info

  System:
    OS: macOS 14.3
    CPU: (10) arm64 Apple M1 Max
    Memory: 905.86 MB / 64.00 GB
  Binaries:
    Node: 21.6.0 - /opt/homebrew/bin/node
    npm: 10.3.0 - /opt/homebrew/bin/npm
  Browsers:
    Chrome: 121.0.6167.160
    Firefox: 122.0.1
    Safari: 17.3
  Packages:
    babel-loader: ^9.1.3 => 9.1.3
    clean-webpack-plugin: ^4.0.0 => 4.0.0
    compression-webpack-plugin: ^11.0.0 => 11.0.0
    copy-webpack-plugin: ^12.0.2 => 12.0.2
    css-loader: ^6.10.0 => 6.10.0
    html-webpack-plugin: ^5.6.0 => 5.6.0
    html-webpack-skip-assets-plugin: ^1.0.3 => 1.0.3
    node-polyfill-webpack-plugin: ^3.0.0 => 3.0.0
    postcss-loader: ^8.1.0 => 8.1.0
    resolve-url-loader: ^5.0.0 => 5.0.0
    sass-loader: ^14.1.0 => 14.1.0
    style-loader: ^3.3.4 => 3.3.4
    terser-webpack-plugin: ^5.3.10 => 5.3.10
    ts-loader: ^9.5.1 => 9.5.1
    val-loader: ^6.0.0 => 6.0.0
    val-loader-modernizr: ^1.0.1 => 1.0.1
    warnings-to-errors-webpack-plugin: ^2.3.0 => 2.3.0
    webpack-cli: ^5.1.4 => 5.1.4
    webpack-dev-server: ^5.0.1 => 5.0.1
    webpack-merge: ^5.10.0 => 5.10.0

[alexander-akait]

Hm, that's intresting, sounds like a bug in ts...