• Optimizing API Requests with the "fields" Parameter

  Explains how the fields parameter limits listing responses to the comma-separated properties an application actually uses, reducing payload size, parsing work, bandwidth and latency, and encourages different field sets for search cards, map views and detail pages rather than repeatedly downloading the full listing model; Related terms include “fields parameter,” “return only selected properties,” “smaller JSON response,” “reduce bandwidth,” “improve latency,” “search-card fields,” “map-view fields,” and “detail-page fields”; Its focus is response projection and payload optimization, not filtering which listings match.Few readers

• Client-Side API Keys Developer Guide

  Details how to create client-side API keys for direct browser or mobile requests through the dedicated client endpoint, restrict them to approved domains and supported endpoints, combine them with firewall protection and forwarded user IPs, monitor their exposure, and rotate or revoke them without revealing a full-access server key; Related terms include “API calls directly from the browser,” “mobile client key,” “client endpoint,” “allowed domains,” “restricted endpoints,” “frontend firewall,” “rotate client credential,” and “do not expose the server key”; This is the dedicated guide for deliberately scoped client-side access, not general API authentication.Few readers

• How to measure API response times

  Explains how to isolate Repliers API latency from browser, application and network overhead by testing directly with Postman or curl and measuring DNS lookup, TCP connection, TLS negotiation, time to first byte, content download and total duration, giving support a useful timing breakdown rather than a single page-load number; Related terms include “API is slow,” “measure latency,” “curl timing,” “Postman response time,” “DNS,” “TCP connect,” “TLS,” “time to first byte,” “download time,” and “page load versus API time”; It is most relevant when support needs a component-level timing trace rather than a subjective speed report.Few readers