How to Version an API Without Breaking Existing Clients
When you change an API, software that already calls it may keep sending the old requests and expecting the old responses. An API version identifies the contract between…
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API
APIs let programs exchange data and request actions. Calls can fail, so the caller needs to handle errors and unexpected responses.
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How to Use ETags for Conditional HTTP Requests
When a client requests a resource from an HTTP server, the server can return an ETag, a header whose value identifies a particular version of the response. The…
Read articleHow to Verify Webhook Signatures Before Processing a Request
When a provider sends an HTTP webhook to your service, verify its signature before you trust the payload or trigger any action. The provider creates a webhook signature…
Read articleHow to Set Timeouts and Retry Failed Requests with the Laravel HTTP Client
When Laravel sends a request to an external API, the server may respond slowly or the connection may fail. Set a timeout to limit how long Laravel waits…
Read articleHow Cursor Pagination Works and When to Use It Instead of Offset Pagination
When an API or database returns a large list, pagination lets a client fetch it in smaller pages. With offset pagination, the client requests a page by specifying…
Read articleHow to Retry API Requests Safely
Your code calls an API and the call times out. The server may never have received the request, or it may have finished the work and lost the…
Read articleWhat Does Idempotency Mean in an API?
A client sends a payment request. The server processes it, but the connection drops before the response arrives, so the client cannot tell whether the payment went through.…
Read articleWhat Is the Difference Between an API Rate Limit and an API Quota?
Your requests to an API start failing, and the error says "rate limit exceeded" or "quota exhausted". Both messages mean the provider is restricting your usage, but they…
Read articleCan Provider Routing Change LLM Outputs?
Provider routing can change an LLM's output when a request reaches a different model version, fallback model, parameter configuration, precision level, inference engine, region, or runtime environment. Provider…
Read articleWhat Is a System Fingerprint in LLM APIs?
When an LLM API response includes a field such as systemfingerprint, it is identifying the provider’s backend configuration, not your prompt, account, device, or system message. The value…
Read articleWhat Is the Difference Between a Model Alias and a Versioned Model ID?
If a configuration contains production, latest, or stable, it probably uses a model alias. An alias is a named pointer that tells a platform which model version currently…
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