A way to set defaults of headers / query params

[felixmosh]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the feature has not already been requested

🚀 Feature Proposal

app.inject().setDefaults({headers: {auth: 'Beaere MY_ACCESS_TOKEN'}})

Motivation

I want to simplify the following flow,

1. login
2. make auth required request

currenly I'm saving the accessToken from the login response, and then attaching it to each one of the following request.
If there was some method of assigning a default header value, it can be used after login.

Example

const response = await app.inject({ method: 'post', url: '/admin/auth/login', body });
const { payload, errors } = response.json<{ payload: IAuthToken; errors: string[] }>();
expect(response.statusCode).toEqual(200);
expect(errors).toHaveLength(0);

if (payload) {
  app.inject().setDefaults({ headers: { authorization: 'Bearer ${payload.accessToken}' } });
}

const addAdminResponse = await app.inject({method: 'post', url: '/admin/admins/add', body: { ... }}); // this request requires auth token header.

[mcollina]

Something that would be interesting for this module to support is:

const inject = bindInject(app, { headers: { authorization: 'Bearer ${payload.accessToken}' } });

const addAdminResponse = inject({method: 'post', url: '/admin/admins/add', body: { ... }}); // this request requires auth token header.

It's a useful feature

This same functionality could also exposed in Fastify too as:

const inject = app.bindInject({ headers: { authorization: 'Bearer ${payload.accessToken}' } });

const addAdminResponse = inject({method: 'post', url: '/admin/admins/add', body: { ... }}); // this request requires auth token header.