Developer Tools · API Infrastructure Web
LogLens — Record & visualize API request/response

Hard-to-track API logs, recorded & visualized in one place. Investigation in minutes.

DevCo Japan Co., Ltd. — Auto-records API request/response that were scattered and untrackable, building an in-house monitoring platform from scratch with cross-search and JSON visualization to accelerate incident investigation.

All APIs
Auto-record request/response
Zero missed logs
Cross-search
Filter by date/user/condition
filter_groups advanced search
Instant viz
Display request/response as JSON
Cuts investigation time
Challenge
Before

API traffic logs were scattered across servers, making it impossible during incidents to trace who sent what and when. Troubleshooting was slow.

  • Want to quickly pinpoint API incident causes
    Logs scattered, untrackable
  • Want to trace which user sent what
    No user-to-request linkage
  • Want to inspect request/response contents
    Parsing raw logs is tedious
  • Want to quickly filter large volumes of logs by condition
    Inefficient, grep-dependent
Solution
After

Automatically logs API traffic in middleware and stores it in a log DB linked to user and time. A monitoring platform that lets you cross-search on the dashboard and inspect request/response directly in a JSON viewer.

Record → Store → Search → Visualize pipeline ClientAPI call API + LoggingMiddleware Log DBUUID / MySQL Cross-searchDate/User VisualizeJSON viewer Auto-records traffic across all APIs, stored linked to user and time Cross-search on dashboard → instantly inspect request/response
app.loglens.example.jp/logs
Filter by date TimeUserMethodStatus 10:24:11tanakaGET200 10:24:33suzukiPOST500 10:25:02tanakaPUT200 10:25:40yamadaGET200 response.json× {"status":500,"error":"timeout","user":"suzuki","path":"/api/orders","ms":30021} Click to expand request/response
Log list — filter by time/user/method/status; click to view JSON details
Tech StackReactTypeScriptAnt DesignLaravelMySQL
5months
24man-months
Considering adopting this at your company? → info@amela.vn