The-DevOps-Daily/terraform-provider-validatefx

Add cron expression validator

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#444 opened on Nov 24, 2025

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enhancementgood first issuehacktoberfest

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Description

Create a validator for cron expression strings.

Features:

  • Support standard 5-field and extended 6-field (with seconds) cron syntax
  • Validate ranges, steps, lists
  • Provide descriptive error messages for invalid expressions
  • Include AWS EventBridge schedule expression support

Contributor guide

Research direction
Study existing cron libraries in Go, understand the 5 field and 6 field syntax, then implement a validator with functions for each part (minute, hour, day, month, weekday, seconds), and add AWS EventBridge support via aliases. Write unit tests.
Tech stack
go
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Go
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70