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Make apiPollingDelay an optionnal parameter of StepFunctions helper #63

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Make apiPollingDelay an optionnal parameter of StepFunctions helper #63

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31 changes: 25 additions & 6 deletions src/helpers/stepFunctions.ts
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Original file line number Diff line number Diff line change
@@ -1,30 +1,47 @@
import { StepFunctions as AWSStepFunctions } from "aws-sdk";
import { AWSClient } from "./general";

const API_POLLING_DELAY_MS = 1000;
const DEFAULT_API_POLLING_DELAY_MS = 1000;

type StepFunctionOptions = { apiPollingDelay?: number };

export default class StepFunctions {
stepFunctions: AWSStepFunctions | undefined;
allStateMachines: AWSStepFunctions.ListStateMachinesOutput | undefined;
apiPollingDelay = DEFAULT_API_POLLING_DELAY_MS;

async init(): Promise<void> {
async init(options: StepFunctionOptions = {}): Promise<void> {
this.stepFunctions = new AWSClient.StepFunctions();
this.allStateMachines = await this.stepFunctions
.listStateMachines()
.promise();
const { apiPollingDelay } = options;
if (apiPollingDelay !== undefined && apiPollingDelay > 0) {
this.apiPollingDelay = apiPollingDelay;
}
}

static async build(): Promise<StepFunctions> {
static async build(
options: StepFunctionOptions = {}
): Promise<StepFunctions> {
const stepFunction = new StepFunctions();
await stepFunction.init();
await stepFunction.init(options);

return stepFunction;
}

// eslint-disable-next-line max-params
async runExecution(
stateMachineName: string,
input: unknown
input: unknown,
options: StepFunctionOptions = {}
): Promise<AWSStepFunctions.DescribeExecutionOutput> {
const { apiPollingDelay } = options;
const executionApiPollingDelay =
apiPollingDelay !== undefined && apiPollingDelay > 0
? apiPollingDelay
: this.apiPollingDelay;

if (this.allStateMachines === undefined) {
throw new Error(
"The list of state machines is undefined. You might have forgotten to run build()."
Expand Down Expand Up @@ -63,7 +80,9 @@ export default class StepFunctions {
.promise();

// Wait before retrying to avoid throttle limits
await new Promise((resolve) => setTimeout(resolve, API_POLLING_DELAY_MS));
await new Promise((resolve) =>
setTimeout(resolve, executionApiPollingDelay)
);
}

return await this.stepFunctions
Expand Down