shellphone.app/app/phone-calls/api/webhook/call.ts

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import type { BlitzApiRequest, BlitzApiResponse } from "blitz";
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import { getConfig } from "blitz";
import twilio from "twilio";
import type { CallInstance } from "twilio/lib/rest/api/v2010/account/call";
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import db, { CallStatus, Direction } from "../../../../db";
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import appLogger from "../../../../integrations/logger";
const { serverRuntimeConfig } = getConfig();
const logger = appLogger.child({ route: "/api/webhook/call" });
type ApiError = {
statusCode: number;
errorMessage: string;
};
export default async function incomingCallHandler(req: BlitzApiRequest, res: BlitzApiResponse) {
console.log("req.body", req.body);
const url = `https://${serverRuntimeConfig.app.baseUrl}/api/webhook/call`;
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const twilioSignature = req.headers["X-Twilio-Signature"] || req.headers["x-twilio-signature"];
if (!twilioSignature || Array.isArray(twilioSignature)) {
const statusCode = 400;
const apiError: ApiError = {
statusCode,
errorMessage: "Invalid header X-Twilio-Signature",
};
logger.error(apiError);
res.status(statusCode).send(apiError);
return;
}
const isOutgoingCall = req.body.From.startsWith("client:");
if (isOutgoingCall) {
const recipient = req.body.To;
const organizationId = req.body.From.slice("client:".length).split("__")[0];
const phoneNumber = await db.phoneNumber.findFirst({
where: { organizationId },
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include: { organization: true },
});
if (
!phoneNumber ||
!phoneNumber.organization.twilioAuthToken ||
!twilio.validateRequest(phoneNumber.organization.twilioAuthToken, twilioSignature, url, req.body)
) {
const statusCode = 400;
const apiError: ApiError = {
statusCode,
errorMessage: "Invalid webhook",
};
logger.error(apiError);
res.status(statusCode).send(apiError);
return;
}
await db.phoneCall.create({
data: {
id: req.body.CallSid,
from: phoneNumber.number,
to: req.body.To,
status: translateStatus(req.body.CallStatus),
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direction: Direction.Outbound,
duration: "", // TODO
organizationId: phoneNumber.organization.id,
phoneNumberId: phoneNumber.id,
},
});
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const twiml = new twilio.twiml.VoiceResponse();
const dial = twiml.dial({
answerOnBridge: true,
callerId: phoneNumber!.number,
});
dial.number(recipient);
console.log("twiml", twiml.toString());
res.setHeader("content-type", "text/xml");
return res.status(200).send(twiml.toString());
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} else {
const phoneNumbers = await db.phoneNumber.findMany({
where: { number: req.body.To },
include: { organization: true },
});
if (phoneNumbers.length === 0) {
// phone number is not registered by any organization
res.status(500).end();
return;
}
const phoneNumber = phoneNumbers.find((phoneNumber) => {
// if multiple organizations have the same number
// find the organization currently using that phone number
// maybe we shouldn't let multiple organizations use the same phone number
const authToken = phoneNumber.organization.twilioAuthToken ?? "";
return twilio.validateRequest(authToken, twilioSignature, url, req.body);
});
if (!phoneNumber) {
const statusCode = 400;
const apiError: ApiError = {
statusCode,
errorMessage: "Invalid webhook",
};
logger.error(apiError);
res.status(statusCode).send(apiError);
return;
}
// TODO dial.client("unique id of device user is picking up with");
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// TODO send notification
// TODO db.phoneCall.create(...);
}
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// TODO queue job to update duration when call ends
res.status(500).end();
}
const outgoingBody = {
AccountSid: "ACa886d066be0832990d1cf43fb1d53362",
ApiVersion: "2010-04-01",
ApplicationSid: "AP6334c6dd54f5808717b37822de4e4e14",
CallSid: "CA3b639875693fd8f563e07937780c9f5f",
CallStatus: "ringing",
Called: "",
Caller: "client:95267d60-3d35-4c36-9905-8543ecb4f174__673b461a-11ba-43a4-89d7-9e29403053d4",
Direction: "inbound",
From: "client:95267d60-3d35-4c36-9905-8543ecb4f174__673b461a-11ba-43a4-89d7-9e29403053d4",
To: "+33613370787",
};
function translateStatus(status: CallInstance["status"]): CallStatus {
switch (status) {
case "busy":
return CallStatus.Busy;
case "canceled":
return CallStatus.Canceled;
case "completed":
return CallStatus.Completed;
case "failed":
return CallStatus.Failed;
case "in-progress":
return CallStatus.InProgress;
case "no-answer":
return CallStatus.NoAnswer;
case "queued":
return CallStatus.Queued;
case "ringing":
return CallStatus.Ringing;
}
}