Legacy Clients

Before client packages, clients were generated using @hey-api/openapi-ts. In fact, @hey-api/openapi-ts still supports generating legacy clients. You can generate them with the client config option.

fetch

export default {
  client: 'legacy/fetch', 
  input: 'path/to/openapi.json',
  output: 'src/client',
};

axios

export default {
  client: 'legacy/axios', 
  input: 'path/to/openapi.json',
  output: 'src/client',
};

angular

export default {
  client: 'legacy/angular', 
  input: 'path/to/openapi.json',
  output: 'src/client',
};

node

export default {
  client: 'legacy/node', 
  input: 'path/to/openapi.json',
  output: 'src/client',
};

xhr

export default {
  client: 'legacy/xhr', 
  input: 'path/to/openapi.json',
  output: 'src/client',
};

Available Clients

• angular (using RxJS)
• axios
• fetch
• node (using node-fetch)
• xhr

Caveats

Please be aware that legacy clients are missing some key features:

• no type-safe errors 🚫
• no access to the original request and response 🚫
• hard to configure individual requests 👎
• inconsistent interceptors and response APIs 👎

TIP

You might not need a node client. Fetch API is experimental in Node.js v18 and stable in Node.js v21. We recommend upgrading to the latest Node.js version.

Interceptors

Interceptors (middleware) can be used to modify requests before they're sent or responses before they're returned to the rest of your application.

Below is an example request interceptor

use

OpenAPI.interceptors.request.use((request) => {
  doSomethingWithRequest(request);
  return request; // <-- must return request
});

eject

OpenAPI.interceptors.request.eject((request) => {
  doSomethingWithRequest(request);
  return request; // <-- must return request
});

and an example response interceptor

use

OpenAPI.interceptors.response.use(async (response) => {
  await doSomethingWithResponse(response); // async
  return response; // <-- must return response
});

eject

OpenAPI.interceptors.response.eject(async (response) => {
  await doSomethingWithResponse(response); // async
  return response; // <-- must return response
});

TIP

To eject, you must provide the same function that was passed to use().

WARNING

Angular client does not currently support request interceptors.

Examples

You can view live examples on StackBlitz.

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