Upgrade CDK v1 to v2#1
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- Replace @aws-cdk/* v1 packages with aws-cdk-lib v2 + constructs v10 - Update all index.ts imports to aws-cdk-lib/* paths - Construct moves from @aws-cdk/core to constructs package - ConcreteDependable removed; replaced with addDependency(...args) - Switch cdk.json app to npx ts-node (no pre-compile step required) - Upgrade TypeScript 3.7 → 5.6, @types/node 10 → 20, add ts-node dep - Fix tsconfig: target ES2020, noFallthroughCasesInSwitch (typo fixed) - overrideLogicalId on DynamoDB table to prevent replacement on deploy - Add config.json and index.js to .gitignore Lambda runtimes unchanged (Node 12) — Phase 2 handles runtime upgrade. cdk synth verified: table logical ID abovevttbackendapitableF5D5D98F, DeletionPolicy: Retain, UpdateReplacePolicy: Retain.
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Summary
@aws-cdk/*v1 packages withaws-cdk-libv2 andconstructsv10overrideLogicalIdto prevent resource replacement on deployNotes
The DynamoDB table (
abovevtt) holds live data. The logical ID override is required — without it, CDK v2 would generate a new physical resource and destroy the existing table. No Lambda code changes in this phase.Test plan
cdk diffshows the DynamoDB table as unchanged (no replacement)/servicesendpoints return data