@aws-cdk/custom-resources
Version:
Constructs for implementing CDK custom resources
168 lines • 25.1 kB
JavaScript
;
const cfnResponse = require("./cfn-response");
const consts = require("./consts");
const outbound_1 = require("./outbound");
const util_1 = require("./util");
/**
* The main runtime entrypoint of the async custom resource lambda function.
*
* Any lifecycle event changes to the custom resources will invoke this handler, which will, in turn,
* interact with the user-defined `onEvent` and `isComplete` handlers.
*
* This function will always succeed. If an error occurs
*
* @param cfnRequest The cloudformation custom resource event.
*/
async function onEvent(cfnRequest) {
const sanitizedRequest = { ...cfnRequest, ResponseURL: '...' };
util_1.log('onEventHandler', sanitizedRequest);
cfnRequest.ResourceProperties = cfnRequest.ResourceProperties || {};
const onEventResult = await invokeUserFunction(consts.USER_ON_EVENT_FUNCTION_ARN_ENV, sanitizedRequest, cfnRequest.ResponseURL);
util_1.log('onEvent returned:', onEventResult);
// merge the request and the result from onEvent to form the complete resource event
// this also performs validation.
const resourceEvent = createResponseEvent(cfnRequest, onEventResult);
util_1.log('event:', onEventResult);
// determine if this is an async provider based on whether we have an isComplete handler defined.
// if it is not defined, then we are basically ready to return a positive response.
if (!process.env[consts.USER_IS_COMPLETE_FUNCTION_ARN_ENV]) {
return cfnResponse.submitResponse('SUCCESS', resourceEvent, { noEcho: resourceEvent.NoEcho });
}
// ok, we are not complete, so kick off the waiter workflow
const waiter = {
stateMachineArn: util_1.getEnv(consts.WAITER_STATE_MACHINE_ARN_ENV),
name: resourceEvent.RequestId,
input: JSON.stringify(resourceEvent),
};
util_1.log('starting waiter', waiter);
// kick off waiter state machine
await outbound_1.startExecution(waiter);
}
// invoked a few times until `complete` is true or until it times out.
async function isComplete(event) {
const sanitizedRequest = { ...event, ResponseURL: '...' };
util_1.log('isComplete', sanitizedRequest);
const isCompleteResult = await invokeUserFunction(consts.USER_IS_COMPLETE_FUNCTION_ARN_ENV, sanitizedRequest, event.ResponseURL);
util_1.log('user isComplete returned:', isCompleteResult);
// if we are not complete, return false, and don't send a response back.
if (!isCompleteResult.IsComplete) {
if (isCompleteResult.Data && Object.keys(isCompleteResult.Data).length > 0) {
throw new Error('"Data" is not allowed if "IsComplete" is "False"');
}
// This must be the full event, it will be deserialized in `onTimeout` to send the response to CloudFormation
throw new cfnResponse.Retry(JSON.stringify(event));
}
const response = {
...event,
...isCompleteResult,
Data: {
...event.Data,
...isCompleteResult.Data,
},
};
await cfnResponse.submitResponse('SUCCESS', response, { noEcho: event.NoEcho });
}
// invoked when completion retries are exhaused.
async function onTimeout(timeoutEvent) {
util_1.log('timeoutHandler', timeoutEvent);
const isCompleteRequest = JSON.parse(JSON.parse(timeoutEvent.Cause).errorMessage);
await cfnResponse.submitResponse('FAILED', isCompleteRequest, {
reason: 'Operation timed out',
});
}
async function invokeUserFunction(functionArnEnv, sanitizedPayload, responseUrl) {
const functionArn = util_1.getEnv(functionArnEnv);
util_1.log(`executing user function ${functionArn} with payload`, sanitizedPayload);
// transient errors such as timeouts, throttling errors (429), and other
// errors that aren't caused by a bad request (500 series) are retried
// automatically by the JavaScript SDK.
const resp = await outbound_1.invokeFunction({
FunctionName: functionArn,
// Cannot strip 'ResponseURL' here as this would be a breaking change even though the downstream CR doesn't need it
Payload: JSON.stringify({ ...sanitizedPayload, ResponseURL: responseUrl }),
});
util_1.log('user function response:', resp, typeof (resp));
const jsonPayload = parseJsonPayload(resp.Payload);
if (resp.FunctionError) {
util_1.log('user function threw an error:', resp.FunctionError);
const errorMessage = jsonPayload.errorMessage || 'error';
// parse function name from arn
// arn:${Partition}:lambda:${Region}:${Account}:function:${FunctionName}
const arn = functionArn.split(':');
const functionName = arn[arn.length - 1];
// append a reference to the log group.
const message = [
errorMessage,
'',
`Logs: /aws/lambda/${functionName}`,
'',
].join('\n');
const e = new Error(message);
// the output that goes to CFN is what's in `stack`, not the error message.
// if we have a remote trace, construct a nice message with log group information
if (jsonPayload.trace) {
// skip first trace line because it's the message
e.stack = [message, ...jsonPayload.trace.slice(1)].join('\n');
}
throw e;
}
return jsonPayload;
}
function parseJsonPayload(payload) {
if (!payload) {
return {};
}
const text = payload.toString();
try {
return JSON.parse(text);
}
catch (e) {
throw new Error(`return values from user-handlers must be JSON objects. got: "${text}"`);
}
}
function createResponseEvent(cfnRequest, onEventResult) {
//
// validate that onEventResult always includes a PhysicalResourceId
onEventResult = onEventResult || {};
// if physical ID is not returned, we have some defaults for you based
// on the request type.
const physicalResourceId = onEventResult.PhysicalResourceId || defaultPhysicalResourceId(cfnRequest);
// if we are in DELETE and physical ID was changed, it's an error.
if (cfnRequest.RequestType === 'Delete' && physicalResourceId !== cfnRequest.PhysicalResourceId) {
throw new Error(`DELETE: cannot change the physical resource ID from "${cfnRequest.PhysicalResourceId}" to "${onEventResult.PhysicalResourceId}" during deletion`);
}
// if we are in UPDATE and physical ID was changed, it's a replacement (just log)
if (cfnRequest.RequestType === 'Update' && physicalResourceId !== cfnRequest.PhysicalResourceId) {
util_1.log(`UPDATE: changing physical resource ID from "${cfnRequest.PhysicalResourceId}" to "${onEventResult.PhysicalResourceId}"`);
}
// merge request event and result event (result prevails).
return {
...cfnRequest,
...onEventResult,
PhysicalResourceId: physicalResourceId,
};
}
/**
* Calculates the default physical resource ID based in case user handler did
* not return a PhysicalResourceId.
*
* For "CREATE", it uses the RequestId.
* For "UPDATE" and "DELETE" and returns the current PhysicalResourceId (the one provided in `event`).
*/
function defaultPhysicalResourceId(req) {
switch (req.RequestType) {
case 'Create':
return req.RequestId;
case 'Update':
case 'Delete':
return req.PhysicalResourceId;
default:
throw new Error(`Invalid "RequestType" in request "${JSON.stringify(req)}"`);
}
}
module.exports = {
[consts.FRAMEWORK_ON_EVENT_HANDLER_NAME]: cfnResponse.safeHandler(onEvent),
[consts.FRAMEWORK_IS_COMPLETE_HANDLER_NAME]: cfnResponse.safeHandler(isComplete),
[consts.FRAMEWORK_ON_TIMEOUT_HANDLER_NAME]: onTimeout,
};
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"framework.js","sourceRoot":"","sources":["framework.ts"],"names":[],"mappings":";AAGA,8CAA8C;AAC9C,mCAAmC;AACnC,yCAA4D;AAC5D,iCAAqC;AASrC;;;;;;;;;GASG;AACH,KAAK,UAAU,OAAO,CAAC,UAAuD;IAC5E,MAAM,gBAAgB,GAAG,EAAE,GAAG,UAAU,EAAE,WAAW,EAAE,KAAK,EAAW,CAAC;IACxE,UAAG,CAAC,gBAAgB,EAAE,gBAAgB,CAAC,CAAC;IAExC,UAAU,CAAC,kBAAkB,GAAG,UAAU,CAAC,kBAAkB,IAAI,EAAG,CAAC;IAErE,MAAM,aAAa,GAAG,MAAM,kBAAkB,CAAC,MAAM,CAAC,8BAA8B,EAAE,gBAAgB,EAAE,UAAU,CAAC,WAAW,CAAoB,CAAC;IACnJ,UAAG,CAAC,mBAAmB,EAAE,aAAa,CAAC,CAAC;IAExC,oFAAoF;IACpF,iCAAiC;IACjC,MAAM,aAAa,GAAG,mBAAmB,CAAC,UAAU,EAAE,aAAa,CAAC,CAAC;IACrE,UAAG,CAAC,QAAQ,EAAE,aAAa,CAAC,CAAC;IAE7B,iGAAiG;IACjG,mFAAmF;IACnF,IAAI,CAAC,OAAO,CAAC,GAAG,CAAC,MAAM,CAAC,iCAAiC,CAAC,EAAE;QAC1D,OAAO,WAAW,CAAC,cAAc,CAAC,SAAS,EAAE,aAAa,EAAE,EAAE,MAAM,EAAE,aAAa,CAAC,MAAM,EAAE,CAAC,CAAC;KAC/F;IAED,2DAA2D;IAC3D,MAAM,MAAM,GAAG;QACb,eAAe,EAAE,aAAM,CAAC,MAAM,CAAC,4BAA4B,CAAC;QAC5D,IAAI,EAAE,aAAa,CAAC,SAAS;QAC7B,KAAK,EAAE,IAAI,CAAC,SAAS,CAAC,aAAa,CAAC;KACrC,CAAC;IAEF,UAAG,CAAC,iBAAiB,EAAE,MAAM,CAAC,CAAC;IAE/B,gCAAgC;IAChC,MAAM,yBAAc,CAAC,MAAM,CAAC,CAAC;AAC/B,CAAC;AAED,sEAAsE;AACtE,KAAK,UAAU,UAAU,CAAC,KAAkD;IAC1E,MAAM,gBAAgB,GAAG,EAAE,GAAG,KAAK,EAAE,WAAW,EAAE,KAAK,EAAW,CAAC;IACnE,UAAG,CAAC,YAAY,EAAE,gBAAgB,CAAC,CAAC;IAEpC,MAAM,gBAAgB,GAAG,MAAM,kBAAkB,CAAC,MAAM,CAAC,iCAAiC,EAAE,gBAAgB,EAAE,KAAK,CAAC,WAAW,CAAuB,CAAC;IACvJ,UAAG,CAAC,2BAA2B,EAAE,gBAAgB,CAAC,CAAC;IAEnD,wEAAwE;IACxE,IAAI,CAAC,gBAAgB,CAAC,UAAU,EAAE;QAChC,IAAI,gBAAgB,CAAC,IAAI,IAAI,MAAM,CAAC,IAAI,CAAC,gBAAgB,CAAC,IAAI,CAAC,CAAC,MAAM,GAAG,CAAC,EAAE;YAC1E,MAAM,IAAI,KAAK,CAAC,kDAAkD,CAAC,CAAC;SACrE;QAED,6GAA6G;QAC7G,MAAM,IAAI,WAAW,CAAC,KAAK,CAAC,IAAI,CAAC,SAAS,CAAC,KAAK,CAAC,CAAC,CAAC;KACpD;IAED,MAAM,QAAQ,GAAG;QACf,GAAG,KAAK;QACR,GAAG,gBAAgB;QACnB,IAAI,EAAE;YACJ,GAAG,KAAK,CAAC,IAAI;YACb,GAAG,gBAAgB,CAAC,IAAI;SACzB;KACF,CAAC;IAEF,MAAM,WAAW,CAAC,cAAc,CAAC,SAAS,EAAE,QAAQ,EAAE,EAAE,MAAM,EAAE,KAAK,CAAC,MAAM,EAAE,CAAC,CAAC;AAClF,CAAC;AAED,gDAAgD;AAChD,KAAK,UAAU,SAAS,CAAC,YAAiB;IACxC,UAAG,CAAC,gBAAgB,EAAE,YAAY,CAAC,CAAC;IAEpC,MAAM,iBAAiB,GAAG,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,KAAK,CAAC,YAAY,CAAC,KAAK,CAAC,CAAC,YAAY,CAAgD,CAAC;IACjI,MAAM,WAAW,CAAC,cAAc,CAAC,QAAQ,EAAE,iBAAiB,EAAE;QAC5D,MAAM,EAAE,qBAAqB;KAC9B,CAAC,CAAC;AACL,CAAC;AAED,KAAK,UAAU,kBAAkB,CAAmC,cAAsB,EAAE,gBAAmB,EAAE,WAAmB;IAClI,MAAM,WAAW,GAAG,aAAM,CAAC,cAAc,CAAC,CAAC;IAC3C,UAAG,CAAC,2BAA2B,WAAW,eAAe,EAAE,gBAAgB,CAAC,CAAC;IAE7E,wEAAwE;IACxE,sEAAsE;IACtE,uCAAuC;IACvC,MAAM,IAAI,GAAG,MAAM,yBAAc,CAAC;QAChC,YAAY,EAAE,WAAW;QAEzB,mHAAmH;QACnH,OAAO,EAAE,IAAI,CAAC,SAAS,CAAC,EAAE,GAAG,gBAAgB,EAAE,WAAW,EAAE,WAAW,EAAE,CAAC;KAC3E,CAAC,CAAC;IAEH,UAAG,CAAC,yBAAyB,EAAE,IAAI,EAAE,OAAM,CAAC,IAAI,CAAC,CAAC,CAAC;IAEnD,MAAM,WAAW,GAAG,gBAAgB,CAAC,IAAI,CAAC,OAAO,CAAC,CAAC;IACnD,IAAI,IAAI,CAAC,aAAa,EAAE;QACtB,UAAG,CAAC,+BAA+B,EAAE,IAAI,CAAC,aAAa,CAAC,CAAC;QAEzD,MAAM,YAAY,GAAG,WAAW,CAAC,YAAY,IAAI,OAAO,CAAC;QAEzD,+BAA+B;QAC/B,wEAAwE;QACxE,MAAM,GAAG,GAAG,WAAW,CAAC,KAAK,CAAC,GAAG,CAAC,CAAC;QACnC,MAAM,YAAY,GAAG,GAAG,CAAC,GAAG,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC;QAEzC,uCAAuC;QACvC,MAAM,OAAO,GAAG;YACd,YAAY;YACZ,EAAE;YACF,qBAAqB,YAAY,EAAE;YACnC,EAAE;SACH,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC;QAEb,MAAM,CAAC,GAAG,IAAI,KAAK,CAAC,OAAO,CAAC,CAAC;QAE7B,2EAA2E;QAC3E,iFAAiF;QACjF,IAAI,WAAW,CAAC,KAAK,EAAE;YACrB,iDAAiD;YACjD,CAAC,CAAC,KAAK,GAAG,CAAC,OAAO,EAAE,GAAG,WAAW,CAAC,KAAK,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC;SAC/D;QAED,MAAM,CAAC,CAAC;KACT;IAED,OAAO,WAAW,CAAC;AACrB,CAAC;AAED,SAAS,gBAAgB,CAAC,OAAY;IACpC,IAAI,CAAC,OAAO,EAAE;QAAE,OAAO,EAAG,CAAC;KAAE;IAC7B,MAAM,IAAI,GAAG,OAAO,CAAC,QAAQ,EAAE,CAAC;IAChC,IAAI;QACF,OAAO,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC;KACzB;IAAC,OAAO,CAAC,EAAE;QACV,MAAM,IAAI,KAAK,CAAC,gEAAgE,IAAI,GAAG,CAAC,CAAC;KAC1F;AACH,CAAC;AAED,SAAS,mBAAmB,CAAC,UAAuD,EAAE,aAA8B;IAClH,EAAE;IACF,mEAAmE;IAEnE,aAAa,GAAG,aAAa,IAAI,EAAG,CAAC;IAErC,sEAAsE;IACtE,uBAAuB;IACvB,MAAM,kBAAkB,GAAG,aAAa,CAAC,kBAAkB,IAAI,yBAAyB,CAAC,UAAU,CAAC,CAAC;IAErG,kEAAkE;IAClE,IAAI,UAAU,CAAC,WAAW,KAAK,QAAQ,IAAI,kBAAkB,KAAK,UAAU,CAAC,kBAAkB,EAAE;QAC/F,MAAM,IAAI,KAAK,CAAC,wDAAwD,UAAU,CAAC,kBAAkB,SAAS,aAAa,CAAC,kBAAkB,mBAAmB,CAAC,CAAC;KACpK;IAED,iFAAiF;IACjF,IAAI,UAAU,CAAC,WAAW,KAAK,QAAQ,IAAI,kBAAkB,KAAK,UAAU,CAAC,kBAAkB,EAAE;QAC/F,UAAG,CAAC,+CAA+C,UAAU,CAAC,kBAAkB,SAAS,aAAa,CAAC,kBAAkB,GAAG,CAAC,CAAC;KAC/H;IAED,0DAA0D;IAC1D,OAAO;QACL,GAAG,UAAU;QACb,GAAG,aAAa;QAChB,kBAAkB,EAAE,kBAAkB;KACvC,CAAC;AACJ,CAAC;AAED;;;;;;GAMG;AACH,SAAS,yBAAyB,CAAC,GAAgD;IACjF,QAAQ,GAAG,CAAC,WAAW,EAAE;QACvB,KAAK,QAAQ;YACX,OAAO,GAAG,CAAC,SAAS,CAAC;QAEvB,KAAK,QAAQ,CAAC;QACd,KAAK,QAAQ;YACX,OAAO,GAAG,CAAC,kBAAkB,CAAC;QAEhC;YACE,MAAM,IAAI,KAAK,CAAC,qCAAqC,IAAI,CAAC,SAAS,CAAC,GAAG,CAAC,GAAG,CAAC,CAAC;KAChF;AACH,CAAC;AApMD,iBAAS;IACP,CAAC,MAAM,CAAC,+BAA+B,CAAC,EAAE,WAAW,CAAC,WAAW,CAAC,OAAO,CAAC;IAC1E,CAAC,MAAM,CAAC,kCAAkC,CAAC,EAAE,WAAW,CAAC,WAAW,CAAC,UAAU,CAAC;IAChF,CAAC,MAAM,CAAC,iCAAiC,CAAC,EAAE,SAAS;CACtD,CAAC","sourcesContent":["/* eslint-disable max-len */\n/* eslint-disable no-console */\nimport { IsCompleteResponse, OnEventResponse } from '../types';\nimport * as cfnResponse from './cfn-response';\nimport * as consts from './consts';\nimport { invokeFunction, startExecution } from './outbound';\nimport { getEnv, log } from './util';\n\n// use consts for handler names to compiler-enforce the coupling with construction code.\nexport = {\n  [consts.FRAMEWORK_ON_EVENT_HANDLER_NAME]: cfnResponse.safeHandler(onEvent),\n  [consts.FRAMEWORK_IS_COMPLETE_HANDLER_NAME]: cfnResponse.safeHandler(isComplete),\n  [consts.FRAMEWORK_ON_TIMEOUT_HANDLER_NAME]: onTimeout,\n};\n\n/**\n * The main runtime entrypoint of the async custom resource lambda function.\n *\n * Any lifecycle event changes to the custom resources will invoke this handler, which will, in turn,\n * interact with the user-defined `onEvent` and `isComplete` handlers.\n *\n * This function will always succeed. If an error occurs\n *\n * @param cfnRequest The cloudformation custom resource event.\n */\nasync function onEvent(cfnRequest: AWSLambda.CloudFormationCustomResourceEvent) {\n  const sanitizedRequest = { ...cfnRequest, ResponseURL: '...' } as const;\n  log('onEventHandler', sanitizedRequest);\n\n  cfnRequest.ResourceProperties = cfnRequest.ResourceProperties || { };\n\n  const onEventResult = await invokeUserFunction(consts.USER_ON_EVENT_FUNCTION_ARN_ENV, sanitizedRequest, cfnRequest.ResponseURL) as OnEventResponse;\n  log('onEvent returned:', onEventResult);\n\n  // merge the request and the result from onEvent to form the complete resource event\n  // this also performs validation.\n  const resourceEvent = createResponseEvent(cfnRequest, onEventResult);\n  log('event:', onEventResult);\n\n  // determine if this is an async provider based on whether we have an isComplete handler defined.\n  // if it is not defined, then we are basically ready to return a positive response.\n  if (!process.env[consts.USER_IS_COMPLETE_FUNCTION_ARN_ENV]) {\n    return cfnResponse.submitResponse('SUCCESS', resourceEvent, { noEcho: resourceEvent.NoEcho });\n  }\n\n  // ok, we are not complete, so kick off the waiter workflow\n  const waiter = {\n    stateMachineArn: getEnv(consts.WAITER_STATE_MACHINE_ARN_ENV),\n    name: resourceEvent.RequestId,\n    input: JSON.stringify(resourceEvent),\n  };\n\n  log('starting waiter', waiter);\n\n  // kick off waiter state machine\n  await startExecution(waiter);\n}\n\n// invoked a few times until `complete` is true or until it times out.\nasync function isComplete(event: AWSCDKAsyncCustomResource.IsCompleteRequest) {\n  const sanitizedRequest = { ...event, ResponseURL: '...' } as const;\n  log('isComplete', sanitizedRequest);\n\n  const isCompleteResult = await invokeUserFunction(consts.USER_IS_COMPLETE_FUNCTION_ARN_ENV, sanitizedRequest, event.ResponseURL) as IsCompleteResponse;\n  log('user isComplete returned:', isCompleteResult);\n\n  // if we are not complete, return false, and don't send a response back.\n  if (!isCompleteResult.IsComplete) {\n    if (isCompleteResult.Data && Object.keys(isCompleteResult.Data).length > 0) {\n      throw new Error('\"Data\" is not allowed if \"IsComplete\" is \"False\"');\n    }\n\n    // This must be the full event, it will be deserialized in `onTimeout` to send the response to CloudFormation\n    throw new cfnResponse.Retry(JSON.stringify(event));\n  }\n\n  const response = {\n    ...event,\n    ...isCompleteResult,\n    Data: {\n      ...event.Data,\n      ...isCompleteResult.Data,\n    },\n  };\n\n  await cfnResponse.submitResponse('SUCCESS', response, { noEcho: event.NoEcho });\n}\n\n// invoked when completion retries are exhaused.\nasync function onTimeout(timeoutEvent: any) {\n  log('timeoutHandler', timeoutEvent);\n\n  const isCompleteRequest = JSON.parse(JSON.parse(timeoutEvent.Cause).errorMessage) as AWSCDKAsyncCustomResource.IsCompleteRequest;\n  await cfnResponse.submitResponse('FAILED', isCompleteRequest, {\n    reason: 'Operation timed out',\n  });\n}\n\nasync function invokeUserFunction<A extends { ResponseURL: '...' }>(functionArnEnv: string, sanitizedPayload: A, responseUrl: string) {\n  const functionArn = getEnv(functionArnEnv);\n  log(`executing user function ${functionArn} with payload`, sanitizedPayload);\n\n  // transient errors such as timeouts, throttling errors (429), and other\n  // errors that aren't caused by a bad request (500 series) are retried\n  // automatically by the JavaScript SDK.\n  const resp = await invokeFunction({\n    FunctionName: functionArn,\n\n    // Cannot strip 'ResponseURL' here as this would be a breaking change even though the downstream CR doesn't need it\n    Payload: JSON.stringify({ ...sanitizedPayload, ResponseURL: responseUrl }),\n  });\n\n  log('user function response:', resp, typeof(resp));\n\n  const jsonPayload = parseJsonPayload(resp.Payload);\n  if (resp.FunctionError) {\n    log('user function threw an error:', resp.FunctionError);\n\n    const errorMessage = jsonPayload.errorMessage || 'error';\n\n    // parse function name from arn\n    // arn:${Partition}:lambda:${Region}:${Account}:function:${FunctionName}\n    const arn = functionArn.split(':');\n    const functionName = arn[arn.length - 1];\n\n    // append a reference to the log group.\n    const message = [\n      errorMessage,\n      '',\n      `Logs: /aws/lambda/${functionName}`, // cloudwatch log group\n      '',\n    ].join('\\n');\n\n    const e = new Error(message);\n\n    // the output that goes to CFN is what's in `stack`, not the error message.\n    // if we have a remote trace, construct a nice message with log group information\n    if (jsonPayload.trace) {\n      // skip first trace line because it's the message\n      e.stack = [message, ...jsonPayload.trace.slice(1)].join('\\n');\n    }\n\n    throw e;\n  }\n\n  return jsonPayload;\n}\n\nfunction parseJsonPayload(payload: any): any {\n  if (!payload) { return { }; }\n  const text = payload.toString();\n  try {\n    return JSON.parse(text);\n  } catch (e) {\n    throw new Error(`return values from user-handlers must be JSON objects. got: \"${text}\"`);\n  }\n}\n\nfunction createResponseEvent(cfnRequest: AWSLambda.CloudFormationCustomResourceEvent, onEventResult: OnEventResponse): AWSCDKAsyncCustomResource.IsCompleteRequest {\n  //\n  // validate that onEventResult always includes a PhysicalResourceId\n\n  onEventResult = onEventResult || { };\n\n  // if physical ID is not returned, we have some defaults for you based\n  // on the request type.\n  const physicalResourceId = onEventResult.PhysicalResourceId || defaultPhysicalResourceId(cfnRequest);\n\n  // if we are in DELETE and physical ID was changed, it's an error.\n  if (cfnRequest.RequestType === 'Delete' && physicalResourceId !== cfnRequest.PhysicalResourceId) {\n    throw new Error(`DELETE: cannot change the physical resource ID from \"${cfnRequest.PhysicalResourceId}\" to \"${onEventResult.PhysicalResourceId}\" during deletion`);\n  }\n\n  // if we are in UPDATE and physical ID was changed, it's a replacement (just log)\n  if (cfnRequest.RequestType === 'Update' && physicalResourceId !== cfnRequest.PhysicalResourceId) {\n    log(`UPDATE: changing physical resource ID from \"${cfnRequest.PhysicalResourceId}\" to \"${onEventResult.PhysicalResourceId}\"`);\n  }\n\n  // merge request event and result event (result prevails).\n  return {\n    ...cfnRequest,\n    ...onEventResult,\n    PhysicalResourceId: physicalResourceId,\n  };\n}\n\n/**\n * Calculates the default physical resource ID based in case user handler did\n * not return a PhysicalResourceId.\n *\n * For \"CREATE\", it uses the RequestId.\n * For \"UPDATE\" and \"DELETE\" and returns the current PhysicalResourceId (the one provided in `event`).\n */\nfunction defaultPhysicalResourceId(req: AWSLambda.CloudFormationCustomResourceEvent): string {\n  switch (req.RequestType) {\n    case 'Create':\n      return req.RequestId;\n\n    case 'Update':\n    case 'Delete':\n      return req.PhysicalResourceId;\n\n    default:\n      throw new Error(`Invalid \"RequestType\" in request \"${JSON.stringify(req)}\"`);\n  }\n}\n"]}