chore: import upstream snapshot with attribution
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# Trigger.dev Basic Tasks (v4)
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**MUST use `@trigger.dev/sdk` (v4), NEVER `client.defineJob`**
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## Basic Task
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```ts
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import { task } from "@trigger.dev/sdk";
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export const processData = task({
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id: "process-data",
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retry: {
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maxAttempts: 10,
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factor: 1.8,
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minTimeoutInMs: 500,
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maxTimeoutInMs: 30_000,
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randomize: false,
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},
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run: async (payload: { userId: string; data: any[] }) => {
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// Task logic - runs for long time, no timeouts
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console.log(`Processing ${payload.data.length} items for user ${payload.userId}`);
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return { processed: payload.data.length };
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},
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});
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```
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## Schema Task (with validation)
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```ts
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import { schemaTask } from "@trigger.dev/sdk";
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import { z } from "zod";
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export const validatedTask = schemaTask({
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id: "validated-task",
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schema: z.object({
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name: z.string(),
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age: z.number(),
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email: z.string().email(),
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}),
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run: async (payload) => {
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// Payload is automatically validated and typed
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return { message: `Hello ${payload.name}, age ${payload.age}` };
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},
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});
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```
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## Scheduled Task
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```ts
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import { schedules } from "@trigger.dev/sdk";
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const dailyReport = schedules.task({
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id: "daily-report",
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cron: "0 9 * * *", // Daily at 9:00 AM UTC
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// or with timezone: cron: { pattern: "0 9 * * *", timezone: "America/New_York" },
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run: async (payload) => {
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console.log("Scheduled run at:", payload.timestamp);
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console.log("Last run was:", payload.lastTimestamp);
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console.log("Next 5 runs:", payload.upcoming);
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// Generate daily report logic
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return { reportGenerated: true, date: payload.timestamp };
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},
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});
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```
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## Triggering Tasks
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### From Backend Code
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```ts
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import { tasks } from "@trigger.dev/sdk";
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import type { processData } from "./trigger/tasks";
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// Single trigger
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const handle = await tasks.trigger<typeof processData>("process-data", {
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userId: "123",
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data: [{ id: 1 }, { id: 2 }],
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});
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// Batch trigger
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const batchHandle = await tasks.batchTrigger<typeof processData>("process-data", [
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{ payload: { userId: "123", data: [{ id: 1 }] } },
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{ payload: { userId: "456", data: [{ id: 2 }] } },
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]);
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```
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### From Inside Tasks (with Result handling)
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```ts
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export const parentTask = task({
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id: "parent-task",
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run: async (payload) => {
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// Trigger and continue
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const handle = await childTask.trigger({ data: "value" });
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// Trigger and wait - returns Result object, NOT task output
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const result = await childTask.triggerAndWait({ data: "value" });
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if (result.ok) {
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console.log("Task output:", result.output); // Actual task return value
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} else {
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console.error("Task failed:", result.error);
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}
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// Quick unwrap (throws on error)
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const output = await childTask.triggerAndWait({ data: "value" }).unwrap();
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// Batch trigger and wait
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const results = await childTask.batchTriggerAndWait([
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{ payload: { data: "item1" } },
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{ payload: { data: "item2" } },
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]);
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for (const run of results) {
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if (run.ok) {
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console.log("Success:", run.output);
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} else {
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console.log("Failed:", run.error);
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}
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}
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},
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});
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export const childTask = task({
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id: "child-task",
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run: async (payload: { data: string }) => {
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return { processed: payload.data };
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},
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});
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```
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> Never wrap triggerAndWait or batchTriggerAndWait calls in a Promise.all or Promise.allSettled as this is not supported in Trigger.dev tasks.
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## Waits
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```ts
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import { task, wait } from "@trigger.dev/sdk";
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export const taskWithWaits = task({
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id: "task-with-waits",
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run: async (payload) => {
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console.log("Starting task");
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// Wait for specific duration
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await wait.for({ seconds: 30 });
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await wait.for({ minutes: 5 });
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await wait.for({ hours: 1 });
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await wait.for({ days: 1 });
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// Wait until specific date
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await wait.until({ date: new Date("2024-12-25") });
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// Wait for token (from external system)
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await wait.forToken({
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token: "user-approval-token",
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timeoutInSeconds: 3600, // 1 hour timeout
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});
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console.log("All waits completed");
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return { status: "completed" };
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},
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});
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```
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> Never wrap wait calls in a Promise.all or Promise.allSettled as this is not supported in Trigger.dev tasks.
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## Key Points
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- **Result vs Output**: `triggerAndWait()` returns a `Result` object with `ok`, `output`, `error` properties - NOT the direct task output
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- **Type safety**: Use `import type` for task references when triggering from backend
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- **Waits > 5 seconds**: Automatically checkpointed, don't count toward compute usage
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## NEVER Use (v2 deprecated)
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```ts
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// BREAKS APPLICATION
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client.defineJob({
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id: "job-id",
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run: async (payload, io) => {
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/* ... */
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},
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});
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```
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Use v4 SDK (`@trigger.dev/sdk`), check `result.ok` before accessing `result.output`
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