https://github.com/krayzpipes/cronticker

Golang ticker that works with Cron scheduling.
https://github.com/krayzpipes/cronticker

Last synced: about 2 months ago
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Golang ticker that works with Cron scheduling.

• Host: GitHub
• URL: https://github.com/krayzpipes/cronticker
• Owner: krayzpipes
• License: mit
• Created: 2020-11-28T20:59:38.000Z (about 4 years ago)
• Default Branch: main
• Last Pushed: 2021-01-02T01:57:05.000Z (almost 4 years ago)
• Last Synced: 2024-07-31T20:52:03.274Z (5 months ago)
• Language: Go
• Size: 23.4 KB
• Stars: 16
• Watchers: 4
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-go - cronticker - A ticker implementation to support cron schedules. (Job Scheduler / Search and Analytic Databases)
• awesome-go-extra - cronticker - 11-28T20:59:38Z|2021-01-02T01:57:05Z| (Job Scheduler / Advanced Console UIs)

README

        
# cronticker

Golang ticker that works with Cron scheduling.

[![CircleCI](https://circleci.com/gh/circleci/circleci-docs.svg?style=shield)](https://circleci.com/gh/circleci/circleci-docs)

![Codecov](https://img.shields.io/codecov/c/github/krayzpipes/cronticker)

[![Go Report Card](https://goreportcard.com/badge/github.com/krayzpipes/cronticker)](https://goreportcard.com/report/github.com/krayzpipes/cronticker)

## Import it

```bash

go get github.com/krayzpipes/cronticker/cronticker

```

```go

import "github.com/krayzpipes/cronticker/cronticker"

```

## Usage

Create a new ticker:

```go

ticker, err := NewTicker("TZ=America/New_York 0 0 0 ? * SUN")

```

Check the ticker's channel for the next tick:

```go

tickerTime := <-ticker.C

```

Reset the ticker to a new cron schedule

```go

err := ticker.Reset("0 0 0 ? * MON,TUE,WED")

```

Stop the ticker

```go

ticker.Stop()

```

Use `defer ticker.Stop()` whenever you can to ensure the cleanup of goroutines.

```go

ticker, _ := NewTicker("@daily")

defer ticker.Stop()

```

### Cron Schedule Format

The Cron schedule can be in **Unix** or **Quartz** format. Directives like

'@weekly' or '@daily' can also be parsed as defined in the

package github.com/robfig/cron/v3.

You may add the TimeZone/location to the beginning of the cron schedule

to change the time zone. Default is UTC if `TZ=Whatever` is not prepended

to the cron schedule.

#### Examples

| Cron Schedule | Type/Format | Description |

|---------------|------|-------------|

|"TZ=America/Los_Angeles 0 0 * * *"|Unix|Daily at 12 AM in Los Angeles|

|"TZ=America/Los_Angeles 0 0 0 ? * MON"|Quartz|Mondays at 12 AM in Los Angeles|

|"TZ=America/Los_Angeles @daily"|Directive|Daily at 12 AM in Los Angeles|

|"@daily"|Directive|Daily at 12 AM UTC|

You may also use the following characters:

| Character | Description | Example |

|-----------|-------------|---------|

|-|Range|4-5|

|/|Step|0/5|

|*|Any|*/5|

|,|List|1,4,5|