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Nick: 10min cooldown on auto charge

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This commit is contained in:
Nicolas 2024-10-25 16:05:23 -03:00
parent 4590577cba
commit 95c4652fd4
1 changed files with 20 additions and 1 deletions
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21
apps/api/src/services/billing/auto_charge.ts
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@ -7,12 +7,13 @@ import { createPaymentIntent } from "./stripe";
import { issueCredits } from "./issue_credits";
import { sendNotification } from "../notification/email_notification";
import { NotificationType } from "../../types";
import { deleteKey } from "../redis";
import { deleteKey, getValue, setValue } from "../redis";
import { sendSlackWebhook } from "../alerts/slack";
import { Logger } from "../../lib/logger";
// Define the number of credits to be added during auto-recharge
const AUTO_RECHARGE_CREDITS = 1000;
const AUTO_RECHARGE_COOLDOWN = 600; // 10 minutes in seconds
/**
* Attempt to automatically charge a user's account when their credit balance falls below a threshold
@ -24,7 +25,22 @@ export async function autoCharge(
autoRechargeThreshold: number
): Promise<{ success: boolean; message: string; remainingCredits: number; chunk: AuthCreditUsageChunk }> {
const resource = `auto-recharge:${chunk.team_id}`;
const cooldownKey = `auto-recharge-cooldown:${chunk.team_id}`;
try {
// Check if the team is in the cooldown period
// Another check to prevent race conditions, double charging - cool down of 10 minutes
const cooldownValue = await getValue(cooldownKey);
if (cooldownValue) {
Logger.info(`Auto-recharge for team ${chunk.team_id} is in cooldown period`);
return {
success: false,
message: "Auto-recharge is in cooldown period",
remainingCredits: chunk.remaining_credits,
chunk,
};
}
// Use a distributed lock to prevent concurrent auto-charge attempts
return await redlock.using([resource], 5000, async (signal) : Promise<{ success: boolean; message: string; remainingCredits: number; chunk: AuthCreditUsageChunk }> => {
// Recheck the condition inside the lock to prevent race conditions
@ -89,6 +105,9 @@ export async function autoCharge(
chunk,
true
);
// Set cooldown period
await setValue(cooldownKey, 'true', AUTO_RECHARGE_COOLDOWN);
}
// Reset ACUC cache to reflect the new credit balance