shellphone.app/app/routes/webhooks/call.ts

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import { type ActionFunction } from "@remix-run/node";
import { type CallInstance } from "twilio/lib/rest/api/v2010/account/call";
import { badRequest, serverError } from "remix-utils";
import { Direction, Prisma, SubscriptionStatus } from "@prisma/client";
import logger from "~/utils/logger.server";
import db from "~/utils/db.server";
import twilio from "twilio";
import { voiceUrl, translateCallStatus } from "~/utils/twilio.server";
import { decrypt } from "~/utils/encryption";
export const action: ActionFunction = async ({ request }) => {
const twilioSignature = request.headers.get("X-Twilio-Signature") || request.headers.get("x-twilio-signature");
if (!twilioSignature || Array.isArray(twilioSignature)) {
return badRequest("Invalid header X-Twilio-Signature");
}
const body: Body = await request.json();
const isOutgoingCall = body.From.startsWith("client:");
if (isOutgoingCall) {
const recipient = body.To;
const organizationId = body.From.slice("client:".length).split("__")[0];
try {
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const twilioAccount = await db.twilioAccount.findUnique({ where: { organizationId } });
if (!twilioAccount) {
// this shouldn't be happening
return new Response(null, { status: 402 });
}
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const phoneNumber = await db.phoneNumber.findUnique({
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where: { twilioAccountSid_isCurrent: { twilioAccountSid: twilioAccount.accountSid, isCurrent: true } },
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include: {
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twilioAccount: {
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include: {
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organization: {
select: {
subscriptions: {
where: {
OR: [
{ status: { not: SubscriptionStatus.deleted } },
{
status: SubscriptionStatus.deleted,
cancellationEffectiveDate: { gt: new Date() },
},
],
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},
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orderBy: { lastEventTime: Prisma.SortOrder.desc },
},
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},
},
},
},
},
});
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if (phoneNumber?.twilioAccount.organization.subscriptions.length === 0) {
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// decline the outgoing call because
// the organization is on the free plan
return new Response(null, { status: 402 });
}
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const encryptedAuthToken = phoneNumber?.twilioAccount.authToken;
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const authToken = encryptedAuthToken ? decrypt(encryptedAuthToken) : "";
if (
!phoneNumber ||
!encryptedAuthToken ||
!twilio.validateRequest(authToken, twilioSignature, voiceUrl, body)
) {
return badRequest("Invalid webhook");
}
await db.phoneCall.create({
data: {
id: body.CallSid,
recipient: body.To,
from: phoneNumber.number,
to: body.To,
status: translateCallStatus(body.CallStatus),
direction: Direction.Outbound,
duration: "0",
phoneNumberId: phoneNumber.id,
},
});
const voiceResponse = new twilio.twiml.VoiceResponse();
const dial = voiceResponse.dial({
answerOnBridge: true,
callerId: phoneNumber!.number,
});
dial.number(recipient);
console.log("twiml voiceResponse", voiceResponse.toString());
return new Response(voiceResponse.toString(), { headers: { "Content-Type": "text/xml" } });
} catch (error: any) {
logger.error(error);
return serverError(error.message);
}
}
};
type OutgoingCallBody = {
AccountSid: string;
ApiVersion: string;
ApplicationSid: string;
CallSid: string;
CallStatus: CallInstance["status"];
Called: string;
Caller: string;
Direction: `outbound${string}`;
From: string;
To: string;
};
type IncomingCallBody = {
AccountSid: string;
ApiVersion: string;
ApplicationSid: string;
CallSid: string;
CallStatus: CallInstance["status"];
Called: string;
CalledCity: string;
CalledCountry: string;
CalledState: string;
CalledZip: string;
Caller: string;
CallerCity: string;
CallerCountry: string;
CallerState: string;
CallerZip: string;
Direction: "inbound";
From: string;
FromCity: string;
FromCountry: string;
FromState: string;
FromZip: string;
To: string;
ToCity: string;
ToCountry: string;
ToState: string;
ToZip: string;
};
type Body = OutgoingCallBody | IncomingCallBody;