Interface IChoiceTransitionOptions

Options for Choice Transition.

Inherited Members

IAssignableStateOptions.Assign

Namespace: Amazon.CDK.AWS.StepFunctions

Assembly: Amazon.CDK.Lib.dll

Syntax (csharp)

public interface IChoiceTransitionOptions : IAssignableStateOptions

Syntax (vb)

Public Interface IChoiceTransitionOptions Inherits IAssignableStateOptions

Remarks

ExampleMetadata: infused

Examples

using Amazon.CDK.AWS.Events;
            Connection connection;


            var getIssue = HttpInvoke.Jsonata(this, "Get Issue", new HttpInvokeJsonataProps {
                Connection = connection,
                ApiRoot = "{% 'https://' & $states.input.hostname %}",
                ApiEndpoint = TaskInput.FromText("{% 'issues/' & $states.input.issue.id %}"),
                Method = TaskInput.FromText("GET"),
                // Parse the API call result to object and set to the variables
                Assign = new Dictionary<string, object> {
                    { "hostname", "{% $states.input.hostname %}" },
                    { "issue", "{% $parse($states.result.ResponseBody) %}" }
                }
            });

            var updateLabels = HttpInvoke.Jsonata(this, "Update Issue Labels", new HttpInvokeJsonataProps {
                Connection = connection,
                ApiRoot = "{% 'https://' & $states.input.hostname %}",
                ApiEndpoint = TaskInput.FromText("{% 'issues/' & $states.input.issue.id & 'labels' %}"),
                Method = TaskInput.FromText("POST"),
                Body = TaskInput.FromObject(new Dictionary<string, object> {
                    { "labels", "{% [$type, $component] %}" }
                })
            });
            var notMatchTitleTemplate = Pass.Jsonata(this, "Not Match Title Template");

            var definition = getIssue.Next(Choice.Jsonata(this, "Match Title Template?").When(Condition.Jsonata("{% $contains($issue.title, /(feat)|(fix)|(chore)(w*):.*/) %}"), updateLabels, new ChoiceTransitionOptions {
                Assign = new Dictionary<string, object> {
                    { "type", "{% $match($states.input.title, /(w*)((.*))/).groups[0] %}" },
                    { "component", "{% $match($states.input.title, /(w*)((.*))/).groups[1] %}" }
                }
            }).Otherwise(notMatchTitleTemplate));

            new StateMachine(this, "StateMachine", new StateMachineProps {
                DefinitionBody = DefinitionBody.FromChainable(definition),
                Timeout = Duration.Minutes(5),
                Comment = "automate issue labeling state machine"
            });

Synopsis

Properties

Comment	An optional description for the choice transition.
Outputs	This option for JSONata only.

Properties

Comment

An optional description for the choice transition.

string? Comment { get; }

Property Value

string

Remarks

Default: No comment

Outputs

This option for JSONata only.

object? Outputs { get; }

Property Value

object

Remarks

When you use JSONPath, then the state ignores this property. Used to specify and transform output from the state. When specified, the value overrides the state output default. The output field accepts any JSON value (object, array, string, number, boolean, null). Any string value, including those inside objects or arrays, will be evaluated as JSONata if surrounded by {% %} characters. Output also accepts a JSONata expression directly.

Default: - $states.result or $states.errorOutput

See: https://docs.aws.amazon.com/step-functions/latest/dg/concepts-input-output-filtering.html