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Express.js provides Codemod transforms to help you upgrade your express server when a feature is deprecated or removed.

Codemods are transformations that run on your codebase programmatically. This allows for a large amount of changes to be applied without having to manually go through every file.

You don't need to install this package, run the following command:

npx @expressjs/codemod# or pnpx, bunx, etc.

or install globally:

npm i -g @expressjs/codemod# or pnpm, bun, etc.

Use@expressjs/codemod -h to explore available command-line options.

Usage: @expressjs/codemod [codemod] [source] [options]Options:  -v, --version               Output the current version of @expressjs/codemod.  -d, --dry                   Dry run (no changes are made to files)  -p, --print                 Print transformed files to stdout  --verbose                   Show more information about the transform process  --silent                    Don't print anything to stdout  -h, --help                  Display this help message.Commands:  upgrade [options] [source]  Upgrade your express server to the latest                              version.

All the available codemods to update your express server:

Transform the deprecated magic string "back"

Transform the methods to their pluralized versions

Transform the deprecated signatures in Express v4

Change request.param() to dedicated methods

The Express.js project welcomes all constructive contributions. Contributions take many forms,from code for bug fixes and enhancements, to additions and fixes to documentation, additionaltests, triaging incoming pull requests and issues, and more!

See theContributing Guide for more technical details on contributing.

MIT