The latest articles on DEV Community by FiveScout (@fivescoutgo). https://dev.to/fivescoutgo https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4216300%2F8579fccd-54ee-47e7-9799-7396c5b933a5.png https://dev.to/fivescoutgo en FiveScout Fri, 30 Oct 2026 03:03:29 +0000 https://dev.to/fivescoutgo/i-built-a-pre-game-scouting-report-for-five-stacks-using-the-riot-api-emh https://dev.to/fivescoutgo/i-built-a-pre-game-scouting-report-for-five-stacks-using-the-riot-api-emh <p>Five-stack players usually have five OP.GG tabs open before queueing. I wanted one shareable page instead, so I built <strong>FiveScout</strong>.</p> <p>You enter five Riot IDs and get a single report with:</p> <ul> <li>current rank and recent 10-game form</li> <li>champion pools and role tendencies</li> <li>a threat score for each player</li> <li>role clashes inside your own team</li> <li>ban suggestions based on what the opposing five actually win with</li> </ul> <p>It supports Riot's direct regions only: <strong>KR, EUW, NA, TW, JP</strong>. No Chinese/Tencent servers.</p> <h2> How it works </h2> <p>The stack is Next.js 15 (App Router) + Postgres + a long-running worker.</p> <ol> <li>The web app validates the five Riot IDs and inserts a job row.</li> <li>The worker claims the job with <code>FOR UPDATE SKIP LOCKED</code>.</li> <li>It calls the official Riot API for account, rank, and recent matches, plus Data Dragon for static data.</li> <li>The report is computed and stored, so the share URL stays stable.</li> </ol> <p>Rate-limit handling and report readability were the two hardest parts. A report is only useful if you can scan it in under a minute before the game starts.</p> <h2> What it deliberately does not do </h2> <ul> <li>No memory reading or game automation</li> <li>No hidden-MMR estimation</li> <li>No raw Riot data dumps for sale</li> <li>No betting features</li> </ul> <p>Only the official Riot API and Data Dragon are used.</p> <h2> Free tier and pricing </h2> <ul> <li>Free: 1 report per week</li> <li>Pro: $7/month for unlimited reports</li> </ul> <p>Try it: <a href="https://fivescoutgo.com/?utm_source=devto&amp;utm_medium=article&amp;utm_campaign=launch_20261031" rel="noopener noreferrer">https://fivescoutgo.com/?utm_source=devto&amp;utm_medium=article&amp;utm_campaign=launch_20261031</a></p> <p>Feedback I am especially interested in: which pre-game signal you actually use, and what you would remove from the report.</p> <p>Not endorsed by Riot Games.</p> webdev nextjs showdev gamedev