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plaid/quickstart
Get up and running with Plaid Link and the API in minutes
Official Plaid quickstart showing how to integrate Plaid Link across five backend languages (Node, Python, Ruby, Go, Java) with a shared React frontend. It's a reference implementation, not a library — the point is to copy patterns into your own app. Aimed at developers starting a new Plaid integration who want working code to inspect before writing their own.
Five backend implementations share one frontend via symlinks, so you can compare how the same endpoint looks in Go vs Python without hunting across repos. The troubleshooting section is unusually honest and specific — it names Chase and Charles Schwab by name as OAuth registration slowdowns, which saves real debugging time. Test credentials are documented for different product categories (transactions vs credit vs income), not just a generic user_good/pass_good. The repo tracks Plaid's API surface well; it was pushed two days ago and covers CRA products, Identity Verification, and Transfer, not just basic transactions.
.NET has no first-party support — you get a community link and a disclaimer. If your stack is .NET, you're on your own. The five backend implementations are mostly copy-pasted logic with language-specific syntax; there's no shared spec or contract test ensuring they stay in sync, so they will drift. This is also a max-everything demo — every product enabled, every endpoint exposed — which makes it harder to use as a starting point for a focused integration. Error handling in the backends is minimal; the Node version in particular returns raw Plaid API errors to the client, which is fine for a demo but will bite anyone who cargo-culpits the pattern.