TypeScript

axios supports type definitions for TypeScript. These are included in the axios npm package by means of the index.d.ts file. Because axios dual publishes with an ESM default export and a CJS module.exports, there are some caveats:

• The recommended setting is to use "moduleResolution": "node16" (this is implied by "module": "node16"). Note that this requires TypeScript 4.7 or greater.
• If you use ESM, your settings should be fine.
• If you compile TypeScript to CJS and you can’t use "moduleResolution": "node16", you have to enable esModuleInterop.
• If you use TypeScript to type check CJS JavaScript code, your only option is to use "moduleResolution": "node16".