feat(cca): Update tsconfig and jsconfig to support require(ESM)

[Tobbe]

Update tsconfig and jsconfig for the api side and for scripts to align with the fact that we now require Node 24. This lets TS know that it's safe to require ES modules, allowing both scripts and the api side to use modern esm packages.

If you're upgrading to this version of Cedar we recommend you manually update your tsconfig.json/jsconfig.json files in api/ and scripts/.

Docs on "module": "node20"
microsoft/TypeScript#60761
https://www.typescriptlang.org/tsconfig/#node16node18node20nodenext

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[greptile-apps]

Greptile Summary

Updated TypeScript and JavaScript compiler configurations across all project templates and fixtures to align with Node.js 24 requirements. The changes update target from ES2023 to ES2024 and module from Node16 to Node20, enabling TypeScript to recognize Node 24's native support for synchronously requiring ES modules.

Key Changes:

• Updated 12 configuration files across templates (ts, js, esm-ts, esm-js) and test fixtures
• Consistent configuration: target: "ES2024" and module: "Node20" with moduleResolution: "Node16"
• Enables modern ESM packages to be used with require() in Node 24+ environments
• Affects both api and scripts directories in all templates

Impact:
This change allows developers using Cedar with Node 24 to use modern ESM-only npm packages in their API and scripts without module loading errors.

Confidence Score: 5/5

• This PR is safe to merge with minimal risk - straightforward configuration updates aligned with Node 24 upgrade
• The changes are mechanical, consistent across all files, and align with the project's documented Node 24 requirement. The configuration combination (module: "Node20" with moduleResolution: "Node16") follows existing patterns in the codebase (e.g., packages/cli/tsconfig.json). All changes are to configuration templates that will be used for new projects or fixtures, with no runtime code modifications.
• No files require special attention - all changes are identical configuration updates

Important Files Changed

Filename	Overview
packages/create-cedar-app/templates/esm-js/api/jsconfig.json	Updated target to ES2024 and module to Node20 for Node 24 compatibility
packages/create-cedar-app/templates/esm-ts/api/tsconfig.json	Updated target to ES2024 and module to Node20 for Node 24 compatibility
packages/create-cedar-app/templates/js/api/jsconfig.json	Updated target to ES2024 and module to Node20 for Node 24 compatibility
packages/create-cedar-app/templates/js/scripts/jsconfig.json	Updated target to ES2024 and module to Node20 for Node 24 compatibility
packages/create-cedar-app/templates/ts/api/tsconfig.json	Updated target to ES2024 and module to Node20 for Node 24 compatibility
packages/create-cedar-app/templates/ts/scripts/tsconfig.json	Updated target to ES2024 and module to Node20 for Node 24 compatibility

Sequence Diagram

sequenceDiagram
    participant Dev as Developer
    participant TS as TypeScript Compiler
    participant Node as Node.js 24
    participant ESM as ES Module Package
    
    Dev->>TS: Write code with require() for ESM
    Note over TS: Uses module: "Node20"<br/>target: "ES2024"<br/>moduleResolution: "Node16"
    TS->>TS: Validates module syntax
    TS->>Dev: Type checking passes
    Dev->>Node: Run script/API code
    Node->>ESM: require(ESM) synchronously
    Note over Node: Node 24+ supports<br/>require() for ESM modules<br/>(without top-level await)
    ESM->>Node: Module loaded
    Node->>Dev: Execution succeeds

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☁️ Nx Cloud last updated this comment at 2026-01-01 21:01:06 UTC

[nx-cloud]

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☁️ Nx Cloud last updated this comment at 2025-12-31 13:55:53 UTC