当前,步骤函数图是使用ASL(亚马逊州语言)在json中定义的。 没有好的方法可以对所创建的图形进行单元测试,我们必须依靠在aws帐户上使用lambda函数的模拟/某种实现来运行图形。 随着AWS CDK的发布,是否可以用高级语言定义步进函数图,并进行单元测试,模拟等?
答案 0 :(得分:2)
您是否尝试过@aws-cdk/aws-stepfunctions
库?
为了后代,从此处的文档中复制示例代码:
const submitLambda = new lambda.Function(this, 'SubmitLambda', { ... });
const getStatusLambda = new lambda.Function(this, 'CheckLambda', { ... });
const submitJob = new stepfunctions.Task(this, 'Submit Job', {
resource: submitLambda,
// Put Lambda's result here in the execution's state object
resultPath: '$.guid',
});
const waitX = new stepfunctions.Wait(this, 'Wait X Seconds', { secondsPath: '$.wait_time' });
const getStatus = new stepfunctions.Task(this, 'Get Job Status', {
resource: getStatusLambda,
// Pass just the field named "guid" into the Lambda, put the
// Lambda's result in a field called "status"
inputPath: '$.guid',
resultPath: '$.status',
});
const jobFailed = new stepfunctions.Fail(this, 'Job Failed', {
cause: 'AWS Batch Job Failed',
error: 'DescribeJob returned FAILED',
});
const finalStatus = new stepfunctions.Task(this, 'Get Final Job Status', {
resource: getStatusLambda,
// Use "guid" field as input, output of the Lambda becomes the
// entire state machine output.
inputPath: '$.guid',
});
const definition = submitJob
.next(waitX)
.next(getStatus)
.next(new stepfunctions.Choice(this, 'Job Complete?')
// Look at the "status" field
.when(stepfunctions.Condition.stringEquals('$.status', 'FAILED'), jobFailed)
.when(stepfunctions.Condition.stringEquals('$.status', 'SUCCEEDED'), finalStatus)
.otherwise(waitX));
new stepfunctions.StateMachine(this, 'StateMachine', {
definition,
timeoutSec: 300
});