app.py

from fastapi import FastAPI, Request
from pydantic import BaseModel
import requests
import os


app = FastAPI()


class RequestBody(BaseModel):
    model: str
    key_body: str
    text: str


@app.post("/api/v1")
async def generate_response(request_body: RequestBody):
    input_text = request_body.text
    model = request_body.model
    key_true = os.environ['key']
    key_body = request_body.key_body
    if key_body == key_true:
        if model == "gemini":
            key_gemini = os.environ['key_gemini']
            headers = {'Content-Type': 'application/json',}
            params = {'key': key_gemini}
            json_data = {'contents': [{'parts': [{'text': input_text}]}]}
            response = requests.post('https://generativelanguage.googleapis.com/v1beta/models/gemini-1.5-flash-latest:generateContent',params=params,headers=headers,json=json_data,)
            all_chunk = response.json()['candidates'][0]['content']['parts'][0]['text']
    
        if model == 'groq':
            key_groq = os.environ['key_groq']
            headers = {'Authorization': f'Bearer {key_groq}','Content-Type': 'application/json'}
            json_data = {'messages': [{'role': 'user','content': input_text}],'model': 'llama-3.1-70b-versatile',}
            response = requests.post('https://api.groq.com/openai/v1/chat/completions', headers=headers, json=json_data)
            all_chunk = response.json()["choices"][0]["message"]["content"]

        if model == 'bing':
            from g4f.client import Client
            from g4f import Provider
            client = Client()
            response = client.chat.completions.create(model="gpt-4o", messages=[{"role": "user", "content": input_text}], provider=Provider.Bing)
            all_chunk = response.choices[0].message.content
            
        if model == "cohere":
            key_cohere = os.environ['key_cohere']
            headers = {'accept': 'application/json','content-type': 'application/json','Authorization': f'Bearer {key_cohere}',}
            data = {"model":"command-r-plus","messages":[{ "role": "user", "content": input_text}]}
            response = requests.post('https://api.cohere.com/v2/chat', headers=headers, json=data)
            all_chunk = response.json()['message']['content'][0]['text']
            
    if key_body != key_true:
        all_chunk = "How's the hack going?"
    return {"response": all_chunk}