Generate Swagger JSON API from NextJS Api Routes
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✨ Demo
- nextjs >= 9
This package reads your JSDoc-annotated source code on NextJS API route and generates an OpenAPI (Swagger) specification.
nextjs + swagger-jsdoc = next-swagger-doc
yarn install next-swagger-doc
yarn add next-swagger-doc swagger-ui-react
import { GetStaticProps, InferGetStaticPropsType } from 'next';
import { createSwaggerSpec } from 'next-swagger-doc';
import SwaggerUI from 'swagger-ui-react';
import 'swagger-ui-react/swagger-ui.css';
const ApiDoc = ({ spec }: InferGetStaticPropsType<typeof getStaticProps>) => {
return <SwaggerUI spec={spec} />;
};
export const getStaticProps: GetStaticProps = async ctx => {
const spec: Record<string, any> = createSwaggerSpec({
title: 'NextJS Swagger',
version: '0.1.0',
});
return {
props: {
spec,
},
};
};
export default ApiDoc;
- Step 1: Create an api route on nextjs, e.g: pages/doc.ts
import { withSwagger } from 'next-swagger-doc';
const swaggerHandler = withSwagger({
openApiVersion: '3.0.0',
title: 'Next Swagger API Example',
version: '0.1.0',
apiFolder: 'pages/api',
});
export default swaggerHandler();
- Step 2: Add JSdoc on API
import { NextApiRequest, NextApiResponse } from 'next';
/**
* @swagger
* /api/hello:
* get:
* description: Returns the hello world
* responses:
* 200:
* description: hello world
*/
const handler = (_req: NextApiRequest, res: NextApiResponse) => {
res.status(200).json({
result: 'hello world',
});
};
export default handler;
- Step 3: Access the Swagger API doc
gh repo clone jellydn/next-swagger-doc
cd example
yarn install
yarn dev
Then open http://localhost:3000/api-doc or http://localhost:3000/ on your browser
👤 Huynh Duc Dung
- Website: https://productsway.com/
- Twitter: @jellydn
- Github: @jellydn
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