[enhancement] openapi-response-validator: native ESM node modules default export not working as intended

[webketje]

Context

• openapi-response-validator version: 12.1.3
• Node version: 18.12.1
• Package type: module (native node ESM ending in .js)

Bug

import OpenAPIResponseValidator from 'openapi-response-validator'
const validator = new OpenAPIResponseValidator({ responses: { }, components: {}})
// throws "OpenAPIResponseValidator is not a constructor"
// because OpenAPIResponseValidator === { __esModule: true, default: function OpenAPIResponseValidator () {}}

Temp fixes

(clunky, TS types intellisense no longer working in VS Code)

import OpenAPIResponseValidator from 'openapi-response-validator'
const validator = new OpenAPIResponseValidator.default({ responses: { }, components: {}})

or (in generated code, not clean but working)
Replace following statements

exports.__esModule = true
exports["default"] = OpenAPIResponseValidator

with

OpenAPIResponseValidator.default = OpenAPIResponseValidator
OpenAPIResponseValidator.__esModule = true
module.exports = OpenAPIResponseValidator

Solution

Provide different entrypoints in dist and expose them to the relevant environments using package.json main, module and exports fields. Alternatively, manually wrap output in a UMD wrapper

[jsdevel]

plz submit a PR

[renkei]

The same issue also exists for OpenAPIRequestValidator and OpenAPIRequestCoercer. As mentioned by the reporter, using

new OpenAPIRequestValidator.default(...)
new OpenAPIResponseValidator.default(...)
new OpenAPIRequestCoercer.default(...)

instead of

new OpenAPIRequestValidator(...)
new OpenAPIResponseValidator(...)
new OpenAPIRequestCoercer(...)

is a workaround for ESM projects. For CommonJS projects, the workaround is not necessary.

[jtlindsey]

same issue with import OpenAPISchemaValidator from 'openapi-schema-validator', workarounds not working. Property 'default' does not exist on type 'typeof OpenAPISchemaValidator'