PHP REST API Web服务正确使用图像？

Question

I am new to developing webservice, my idea is to build a REST API based on PHP. Which make possible to CRUD images files e.g. images/test.jpg.

Is possible to get images over a REST webservice? If yes, then how? Or is a webservice only for json responses provided?

I prefer approach without a framework, because i want to learn.

My routes:

// GET
/api/images  # Get alle images
/api/images/1 # Get images based on primary key

// PUT
/api/images/1 # Update images based on primary key

// POST
/api/images # Add a new image

// DELETE
/api/images/1 # Delete images based on primary key

JSON Response example

  /api/images/1

Version the image file itself stored phyisical on webservice project(www.example.com).

{
    "filename": "example.jpg",
    "filepath": "www.example.com/images/example.jpg",
    "htmlAlt": "Example Image",
}

or be better this version

Version the image itself stored phyisical on frontend project(www.example-frontend.com).

{
    "filename": "example.jpg",
    "filepath": "images/example.jpg",
    "htmlAlt": "Example Image",
}

Answer 1

Is possible to get images over a REST webservice?

Yes.

If yes, then how?

You make a GET request to the URL which represents the image. The server sends back an image.

(Said server might also support PUT requests to upload new images, DELETE requests to remove them, and so on).

Or is a webservice only for json responses provided?

A webservice provides whatever kind of data its author wants to provide.