mirror of
https://github.com/tenrok/event-scheduling.git
synced 2026-06-08 17:22:33 +03:00
Dipesh Dulal
32 lines
1.1 KiB
Markdown
32 lines
1.1 KiB
Markdown
### Database Based Event Scheduling
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Example that demonstrates super basic database based event scheduling.
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#### To run this example;
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- Copy `.env.example` to `.env` and update postgres database dsn.
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- Run `go run .`
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**Basically,**
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- When we want to schedule a job, we add to database
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```go
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scheduler.Schedule("SendEmail", "mail: nilkantha.dipesh@gmail.com", time.Now().Add(1*time.Minute))
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```
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- Another go routine is always looking for jobs to execute (that has time expired) in the given interval.
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```go
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scheduler.CheckEventsInInterval(ctx, time.Minute)
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```
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**Output looks like;**
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```
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2021/01/16 11:45:57 💾 Seeding database with table...
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2021/01/16 11:45:57 🚀 Scheduling event SendEmail to run at 2021-01-16 11:46:57.177316418 +0545 +0545 m=+60.007979630
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2021/01/16 11:45:57 🚀 Scheduling event PayBills to run at 2021-01-16 11:50:57.180342726 +0545 +0545 m=+300.011005907
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2021/01/16 11:46:57 ⏰ Ticks Received...
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2021/01/16 11:46:57 📨 Sending email with data: mail: nilkantha.dipesh@gmail.com
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2021/01/16 11:47:57 ⏰ Ticks Received...
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^C2021/01/16 11:48:00
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❌ Interrupt received closing...
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``` |