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concurrency.ts
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/
concurrency.ts
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import { logger, task, wait } from "@trigger.dev/sdk/v3";
export const oneAtATime = task({
id: "on-at-a-time",
queue: {
concurrencyLimit: 1,
},
run: async (payload: { message: string }) => {
logger.info("One at a time task payload", { payload });
await wait.for({ seconds: 5 });
return {
finished: new Date().toISOString(),
};
},
});
export const testConcurrency = task({
id: "test-concurrency",
run: async ({ count = 10, delay = 5000 }: { count: number; delay: number }) => {
logger.info(`Running ${count} tasks`);
await new Promise((resolve) => setTimeout(resolve, 3000));
await testConcurrencyChild.batchTrigger(
Array.from({ length: count }).map((_, index) => ({
payload: {
delay,
},
}))
);
logger.info(`All ${count} tasks triggered`);
return {
finished: new Date().toISOString(),
};
},
});
export const testConcurrencyChild = task({
id: "test-concurrency-child",
queue: {
concurrencyLimit: 1,
},
run: async ({ delay = 5000 }: { delay: number }) => {
logger.info(`Delaying for ${delay}ms`);
await new Promise((resolve) => setTimeout(resolve, delay));
logger.info(`Delay of ${delay}ms completed`);
return {
completedAt: new Date(),
};
},
});