API cannot find the upscaler (what is the path it's looking for it in?)

[Faishun]

Hello, I am developing a Python application that uses the local web server and sends requests to it. What I need is the upscaling payload to work. I do not really understand where it's looking for the .pth file that I have. My python project and SD Web UI directories are, of course, different.

        upscaler_1 = self.upscalerInterface.modelComboBox.currentText()

        # Add .pth extension to the upscaler_1
        upscaler_1 += ".pth"

        # Get the value of the multiplierSlider
        upscaling_resize = self.upscalerInterface.multiplierSlider.value()

        # Create the payload
        payload = {
            "upscaling_resize": upscaling_resize,
            "upscaler_1": upscaler_1,
            "upscaler_2": "None",
            "extras_upscaler_2_visibility": 0,
            "image": img_base64
        }

        # Send a POST request to the server
        response = requests.post(url=f'{url}/sdapi/v1/extra-single-image', json=payload)
        r = response.json()

        # Check if 'images' is in the response
        if 'images' in r:
            # Convert the response image from base64 to a PIL Image
            image = Image.open(io.BytesIO(base64.b64decode(r['images'][0])))

            # Convert the PIL Image to a QImage
            qimage = ImageQt.ImageQt(image)

            # Convert the QImage to a QPixmap
            pixmap = QPixmap.fromImage(qimage)

            # Set the QPixmap as the pixmap of the outputImageLabel
            self.upscalerInterface.outputImageLabel.setPixmap(pixmap)
        else:
            print(f"Error: 'images' not found in response. Response: {r}")

Here's the error that I caught:
Error: 'images' not found in response. Response: {'error': 'AssertionError', 'detail': '', 'body': '', 'errors': 'could not find upscaler named C:/Users/me/Desktop/PythonProject/resources/models/RealESRGAN_x4plus.pth'}
I suppose that it doesn't expect a path, but rather a file already that it is looking for in a certain directory? I would appreciate some help.

Here's what the API documentation says:

So it does accept a string, but then I do not understand why it's nowhere to be found if it is there.

[missionfloyd]

It uses the models on the server (the ones on the Extras tab). Use the name, not the filename. See /sdapi/v1/upscalers.

import requests
import base64

url = "http://127.0.0.1:7860"

with open("input.png", "rb") as f:
    img = base64.b64encode(f.read()).decode('utf-8')

payload = {
    "resize_mode": 0,
    "upscaling_resize": 2,
    "upscaler_1": "ESRGAN_4x",
    "image": img
}

response = requests.post(url=f'{url}/sdapi/v1/extra-single-image', json=payload)
r = response.json()

with open("output.png", 'wb') as f:
    f.write(base64.b64decode(r['image']))

[Faishun]

Thanks, works. In the GET response though there are two lines {
"name": "4x_fatal_Anime_500000_G",
"model_name": "ESRGAN_4x", which is slightly confusing, but yeah, the "name" should be used

[TomMacario]

Hello, I have a bit of the same type of error. I think I'm using the API wrong. I have the impression that the API has changed recently. We should no longer use "/sdapi/v1/...." after our url. But rather something like /api/{api_name}. I don't really understand how this works. Anyone to help me? THANKS

[Faishun]

I have called API several times today with no issue. You should access the endpoint by {local_url}/sdapi/. I can't say for sure if you have the same version as I do, but you can always see what endpoints you need to call in the API docs in your SD web ui. I go there from time to time for GET and POST requests