SAP fiori connecting to fastapi

[Anu23]

I have developed a SAP Fiori application in SAP Business Application Studio and initialized the FastAPI web framework within my project. However, while attempting to run the SAP Fiori UI app, I am encountering issues retrieving results.
AJAX request is not happening, it is not bale to connect
@ash_G Please can you guide me on how to resolve this and ensure seamless integration between the FastAPI backend and the SAP Fiori front-end.

[Marian_Zeis]

might need a proxy between frontend and fastapi

[WouterLemaire]

as Marian mentioned you have to configure the proxy in the ui5.yaml file. Probably you are using the Fiori tooling, here you have an example of this config: 
https://github.com/lemaiwo/ODatav4DemoApp/blob/e3c4c1bc730a076378fd6f042156a5874ef3024d/app/ODataV4D... 

besides that, you can try following this tutorial to learn how everything is connected: https://developers.sap.com/tutorials/appstudio-fioriapps-create..html

[Anu23]

backend: - path: /api url: http://0.0.0.1:8001

[Anu23]

It's giving the following error: Error Message: Failed to register backend for /api. Check configuration in yaml file. Error: Unable to determine target from configuration: { "path": "/api", "proxy": "http://127.0.0.1:8887" }. I don't understand why it's using 127.0.0.1:8887 even though I've specified port 8001. Could you help me understand what I might be missing?