Setting headers manually does not override initial headers

tominkki commented 3 years ago

I'm not completely sure if this is bug or desired feature, but behaviour when setting headers manually for one request is (atleast in this case) weird.

Expected behaviour

Manually set headers overrides initial headers: authorization: 'Bearer token'

Actual behaviour

Manually set headers are joined to initial headers: authorization: 'initial header, Bearer token'

Steps to reproduce

const config = {
    definition: definition,
    axiosConfigDefaults: {
      headers: {
        authorization: 'initial header',
      },
    },
  };

const api  = new OpenAPIClientAxios(config);
api.withServer({ url });
await api.init();
const client = await api.getClient();

client.postSomething(null, data, { 
    headers: { 
      authorization: 'Bearer token' 
    } 
  }
);