How can I call with Postman a RESTful API deployed with Gradio?

Question

I'm following the basic Gradio interface from the Gradio documentation:

import gradio as gr

def greet(name):
    return "Hello " + name + "!"

demo = gr.Interface(fn=greet, inputs="text", outputs="text")

demo.launch()

The interface is:

I believe this deploys a RESTful API, since it says "Use via API" in the footer of the interface:

How can I call that RESTful API with Postman?

I tried:

but as the screenshot shows, I'm getting the error message:

{"detail":"Not Found"}

The page that the "Use via API" points to indicate:

but I don't want to use the Gradio client.

---

Update: using the endpoint http://localhost:7861/api/predict seems to work better, but I am still trying to figure out what the name of the key is:

I tried to add a body but that doesn't work either:

Answer 1

I found the answer on https://github.com/aiplaybookin/gradio-demo:

Use https://hoppscotch.io or https://www.postman.com/

• As the API is POST select POST

• Paste the full URL https://locahost:7861/api/predict

• Go to Body and Set the content type to application/json

• Paste the input Payload in the body & convert your image to base64 using online tool (https://www.base64-image.de/) and paste it as value.

In my case:

JSON payload:

{"data": ["test"]}