koa-oas3

Request and Response validator for OpenAPI Specification 3.

Installation

npm

npm install --save koa-oas3

yarn

yarn add koa-oas3

API

By default, this library will use koa-bodyparser to parse request body. See config of requestBodyHandler.

import * as bodyParser from 'koa-bodyparser';
import { oas } from 'koa-oas3';

const app = new Koa();
app.use(bodyParser());
const oasMw = await oas({
  file: `${__dirname}/../openapi.yaml`,
  endpoint: '/openapi.json',
  uiEndpoint: '/'
})
app.use(oasMw);

app.listen(8080);

oas(option)

options:

file - The absolute path to your Openapi file
spec - javascript object defining the api, either this or file must be given.
enableUi(default: true) - Whether to enable serving Openapi JSON and UI
endpoint(default: /openapi.json) - The endpoint for serving Openapi JSON
uiEndpoint:(default: /openapi.html) - The endpoint for serving Openapi UI
validateResponse:(default: false) - Validate response against Openapi schemas
validatePaths:(default ['/']) - Only endpoints starting with the values specified here will be validated
swaggerUiBundleBasePath: (default use swagger-ui-dist from unpkg) - swaggerUiAssetPath needed for loading the swagger-ui
validationOptions: Optional - options for sending to oas3-chow-chow/AJV
oasValidatorOptions: Optional - options for sending to oas-validator. https://github.com/Mermade/oas-kit/blob/main/docs/options.md
qsParseOptions: { [key: string]: any}: Optional - Options to be passed to the query string parse command. Default: { comma: true }
errorHandler: (error: Error, ctx: Context) => void,: Optional - custom error hanlder.
requestBodyHandler: { [key: string]: koa.Middleware }: Optional - custom body handler. Defaults:

{
  'application/json': bodyParser({
    extendTypes: {
      json: ['application/json']
    },
    enableTypes: ['json']
  }),
  'text/*': bodyParser({
    extendTypes: {
      text: ['text/*']
    },
    enableTypes: ['text']
  }),
  'application/x-www-form-urlencoded': bodyParser({
    extendTypes: {
      form: ['application/x-www-form-urlencoded']
    },
    enableTypes: ['form']
  })
}

Contributors

Pull requests, issues and comments welcome. For pull requests:

Add tests for new features and bug fixes
Follow the existing style
Separate unrelated changes into multiple pull requests
See the existing issues for things to start contributing.
Generate changeset using yarn changeset
If there are dependency changes, update lock file with yarn install

For bigger changes, make sure you start a discussion first by creating an issue and explaining the intended change.

Atlassian requires contributors to sign a Contributor License Agreement, known as a CLA. This serves as a record stating that the contributor is entitled to contribute the code/documentation/translation to the project and is willing to have it used in distributions and derivative works (or is willing to transfer ownership).

Prior to accepting your contributions we ask that you please follow the appropriate link below to digitally sign the CLA. The Corporate CLA is for those who are contributing as a member of an organization and the individual CLA is for those contributing as an individual.

harrywynnwill/koa-oas3