Migrate frontend from Create React App to Vite#567
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CRA has been unmaintained since 2022 and is no longer recommended by React. This replaces it with Vite 8, which provides faster dev server startup, faster builds, and a smaller dependency footprint (1455 → 169 packages). - Replace react-scripts with vite + @vitejs/plugin-react - Move index.html to project root with module script entry point - Port dev server proxy config from setupProxy.js to vite.config.ts - Rename REACT_APP_API_HOST env var to API_HOST - Remove CRA boilerplate (reportWebVitals, setupTests, react-app-env.d.ts) - Upgrade index.tsx to React 18 createRoot API - Switch plaid-threads imports from default to named exports for Vite CJS interop compatibility - Remove ~ prefix from SCSS imports (webpack convention, not needed by Vite) - Bump tsconfig target to ES2020, Node engine to >= 18 - Update README HTTPS/OAuth instructions for Vite Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
createRootAPI and fixplaid-threadsCJS interop for Vite compatibilityDetails
Build tooling:
react-scripts→vite+@vitejs/plugin-reactsrc/setupProxy.jstovite.config.tsREACT_APP_API_HOSTenv var renamed toAPI_HOSTSource changes:
index.htmlmoved frompublic/to project root (Vite convention)index.tsxupgraded from deprecatedReactDOM.rendertocreateRootplaid-threadsimports changed from default to named exports ({ Button }instead ofButton) for CJS/ESM interop~prefix removed from SCSS@importpaths (webpack convention not needed by Vite)tsconfig.jsontarget bumped to ES2020, Node engine to >= 18Removed CRA boilerplate:
reportWebVitals.ts,setupTests.ts,setupProxy.js,react-app-env.d.tsweb-vitals,sass-loader,react-dev-utilseslintConfig,browserslist,overridesfrompackage.jsonREADME updated with Vite-compatible HTTPS/OAuth instructions and Node >= 18 prerequisite.
Test plan
npm run buildsucceeds (tsc + vite build, ~325ms)npm startserves the app at localhost:3000🤖 Generated with Claude Code
Claude Session: f239487a-6d2b-41a4-8407-5e2a5b43a546