How to enable cors in fastapi?

@deron 

To enable Cross-Origin Resource Sharing (CORS) in FastAPI, you can use the fastapi.middleware.CORSMiddleware middleware. Here is an example of how to enable CORS in FastAPI:

1. Install the required dependencies:

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pip install fastapi uvicorn

1. Create a FastAPI application and configure the CORS middleware:

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from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware

app = FastAPI()

# Configure allowed origins, methods, and headers
origins = [
    "http://localhost",
    "http://localhost:8080",
]

app.add_middleware(
    CORSMiddleware,
    allow_origins=origins,
    allow_credentials=True,
    allow_methods=["GET", "POST", "PUT", "DELETE"],
    allow_headers=["*"],
)

In this example, we have configured CORS to allow requests from http://localhost and http://localhost:8080, with credentials allowed, and specifying the allowed methods and headers.

1. Run the FastAPI application using Uvicorn:

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uvicorn main:app --reload

With these steps, you should now have enabled CORS in your FastAPI application. You can customize the CORS settings according to your requirements.