Api::V1::IssuesController#create (avg 2481ms, max 2615ms)

Completeness#

#	Plan Item	Status	Evidence
1	`create.ts`: Remove `getIssueWithFullInfo()` call, construct response in-memory using write data + `issueType` object, parallelize notifications with `Promise.all()`	PASS	`applications/issue-service/src/lambda/issue/create.ts`: lines 98-126 show removal of `getIssueWithFullInfo(client, issueId)` call, in-memory `issue` object construction (lines 100-113), and `Promise.all(notifications)` pattern (lines 115-121)
2	`lambda-helper.ts`: `LambdaClient` as module-scope singleton, remove per-function instantiation	PASS	`applications/issue-service/src/common/lambda-helper.ts`: line 4 declares `const lambdaClient = new LambdaClient()` at module scope; lines 6 and 20 show removal of `const lambdaClient = new LambdaClient()` inside each function
3	`config.ts`: Add singleton `DynamoDBClient` export	PASS	`applications/issue-service/src/common/config.ts`: line 1 adds `import { DynamoDBClient }` and line 10 adds `export const dynamoDBClient = new DynamoDBClient(dynamoDBClientConfig)`
4	`dynamodb-helper.ts`: No changes (API compatibility maintained)	PASS	File does not appear in the diff -- no modifications made, as planned

Acceptance Criteria#

#	Criterion	Status	Evidence
1	`create.ts` removes `getIssueWithFullInfo` import and call	PASS	`create.ts`: line 10 shows import changed from `{ getIssueTypByErrorCode, getIssueTypById, getIssueWithFullInfo }` to `{ getIssueTypByErrorCode, getIssueTypById }`; line 100 area shows `getIssueWithFullInfo(client, issueId)` call removed
2	Response object constructed in-memory with issueType data	PASS	`create.ts`: lines 100-113 build `issue` object with fields from `data` and `issueType` directly, including `issue_type: issueType`
3	Notification calls parallelized with `Promise.all()`	PASS	`create.ts`: lines 115-121 build `notifications` array conditionally, then `await Promise.all(notifications)` at line 122
4	`LambdaClient` is module-scope singleton in `lambda-helper.ts`	PASS	`lambda-helper.ts`: line 4 declares `const lambdaClient = new LambdaClient()` outside any function
5	`DynamoDBClient` singleton exported from `config.ts`, reused in `create.ts` and `findIssueType()`	PASS	`config.ts`: line 10 exports `dynamoDBClient`; `create.ts`: line 6 imports `dynamoDBClient` from config, line 98 uses it for `BatchWriteItemCommand`, lines 19/21 use it in `findIssueType()` via `getIssueTypById(dynamoDBClient, ...)` and `getIssueTypByErrorCode(dynamoDBClient, ...)`
6	Existing error handling (try-catch) structure maintained	PASS	`create.ts`: try-catch block preserved at lines 97-126 (handler) and lines 17-23 (`findIssueType`)
7	`issue.issue_type.error_code?.startsWith("AGT")` condition works correctly	PASS	`create.ts`: line 119 checks `!issueType.error_code?.startsWith("AGT")` -- uses `issueType` directly which is the same object assigned to `issue.issue_type`, functionally equivalent to the original check

Issues Found#

No blocking issues found.

Observations#

unmarshall import removed: The diff removes the unmarshall import from create.ts (line 2). This is correct since getIssueWithFullInfo (which used unmarshalled DynamoDB responses) is no longer called.
Notification invocation type: Both sendEmailNotification and sendMondayNotification use InvocationType.Event (fire-and-forget async Lambda invocation). The Promise.all() wrapping them will resolve once the invoke API call returns (not when the downstream Lambda completes). This is functionally equivalent to the original sequential awaits but with reduced wall-clock time.
In-memory response fidelity: The constructed issue object includes fields like created_at: Date.now() which may differ slightly from what DynamoDB would return (if there was any server-side transformation). Since the data was just written with the same values, this is acceptable.
Null coalescing on issueType fields: issueType.issue_type_id ?? null and issueType.error_code ?? null safely handle cases where issueType might be the empty object {} returned when findIssueType returns null (line 90 area, not shown in diff but inferred from the existing code flow where issueType defaults). This is a minor robustness note -- the caller should verify that issueType is guaranteed non-null at this point in the flow.