Boto3的cron：參數ScheduleExpression無效

Question

我想只是執行的15分鐘之後，安排事件：

client = boto3.client('events') 
d = datetime.now() + timedelta(minutes=40) 
cronJob = "cron(" + str(d.hour) + " " + str(d.minute) + " * * ? *)" 
client.put_rule(Name='extractData', ScheduleExpression=cronJob, State='ENABLED', Description='This is rule extracting flurry data') 
try: 
    client.put_targets(Rule='extractData', Targets=[ { 'Id': '1', 'Arn': 'arn:aws:lambda:ap-southeast-1:381409677897:function:flurry_extractReportOnDemand' }]) 
except: 
    print("\n###################\n") 
    print ("Could not schedule") 
    print("\n###################\n") 

這是給我的錯誤作爲

Parameter ScheduleExpression is not valid. 

任何想法，爲什麼？

Answer 1

http://docs.aws.amazon.com/AmazonCloudWatch/latest/events/ScheduledEvents.html#CronExpressions

第一值應爲分鐘和秒值應小時。

所以，你的代碼應該是：的

cronJob = "cron(" + str(d.minute) + " " + str(d.hour) + " * * ? *)" 

代替"cron(" + str(d.hour) + " " + str(d.minute) + " * * ? *)"