Type mismatch between mswjs/source and mswjs/http-middleware

[JeffBaumgardt]

While I was trying to implement a standalone server for mocks I encountered a type mismatch. I had added the source package to read my openapi specs and output the generated handlers.

The type from openApi is RequestHandler<RequestHandlerDefaultInfo, any, any, RequestHandlerOptions>[] but the createServer expects handlers to be HttpHandler[]. The http hander type is an extension of Request handler, but is missing checkRedundantQueryParameters and matchMethod both of which are private on the Request Handler instance.

Example code

import {createServer} from '@mswjs/http-middleware'
import {fromOpenApi} from '@mswjs/source/open-api'
import type {OpenAPIV3} from 'openapi-types'

import balancesApi from '@tallied-technologies/services/Balances/Balances.json'

const balancesHandlers = await fromOpenApi({
    basePath: 'http://localhost/',
    ...balancesApi,
} as OpenAPIV3.Document)

const server = createServer(...balancesHandlers)
server.listen(8088)

It would also be really cool if source could re-export the OpenAPI document types as well so I don't have to install the openapi-types package just for the types.

The above code does work as written as js, this is just appeasing typescript because of the mismatch.