74 lines
2.7 KiB
Python
74 lines
2.7 KiB
Python
from fastapi import FastAPI, Response, Form
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from typing import Optional
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import requests
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import uvicorn
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from vocode.models.synthesizer import SynthesizerConfig
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from twilio.jwt.access_token.grants import VoiceGrant
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from vocode.models.transcriber import TranscriberConfig
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from vocode.telephony.utils import create_access_token
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from .. import api_key, BASE_URL
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from ..models.agent import AgentConfig
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from ..models.telephony import CreateInboundCall, InternalTwilioConfig, TwilioConfig
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VOCODE_INBOUND_CALL_URL = f"https://{BASE_URL}/create_inbound_call"
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class InboundCallServer:
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def __init__(
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self,
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agent_config: AgentConfig,
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transcriber_config: Optional[TranscriberConfig] = None,
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synthesizer_config: Optional[SynthesizerConfig] = None,
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response_on_rate_limit: Optional[str] = None,
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internal_twilio_config: Optional[InternalTwilioConfig] = None,
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):
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self.agent_config = agent_config
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self.transcriber_config = transcriber_config
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self.synthesizer_config = synthesizer_config
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self.app = FastAPI()
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self.app.post("/vocode")(self.handle_call)
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self.response_on_rate_limit = (
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response_on_rate_limit
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or "The line is really busy right now, check back later!"
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)
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self.internal_twilio_config = internal_twilio_config
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def create_twilio_config(self) -> TwilioConfig:
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access_token = create_access_token(self.internal_twilio_config)
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access_token.add_grant(
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VoiceGrant(
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outgoing_application_sid=self.internal_twilio_config.outgoing_application_sid,
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incoming_allow=True,
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)
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)
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return TwilioConfig(
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account_sid=self.internal_twilio_config.account_sid,
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access_token=access_token.to_jwt(),
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)
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async def handle_call(self, twilio_sid: str = Form(alias="CallSid")):
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response = requests.post(
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VOCODE_INBOUND_CALL_URL,
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headers={"Authorization": f"Bearer {api_key}"},
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json=CreateInboundCall(
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agent_config=self.agent_config,
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twilio_sid=twilio_sid,
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transcriber_config=self.transcriber_config,
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synthesizer_config=self.synthesizer_config,
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).dict(),
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)
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if response.status_code == 429:
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return Response(
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f"<Response><Say>{self.response_on_rate_limit}</Say></Response>",
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media_type="application/xml",
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)
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assert response.ok, response.text
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return Response(
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response.text,
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media_type="application/xml",
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)
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def run(self, host="localhost", port=3000):
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uvicorn.run(self.app, host=host, port=port)
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