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Overview

Railway log drains forward your service logs to Squasher over HTTP. Squasher filters for errors using severity levels and message heuristics, groups them, and runs AI triage.

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Setup

1

Get your drain URL

Find your project ID in the Squasher dashboard under Settings > General.Your drain URL is:
https://ingest.squasher.ai/v1/drain/railway/{your_project_id}
2

Add the drain in Railway

  1. Go to your Railway project Settings
  2. Navigate to Observability > Log Drains
  3. Click Add Drain
  4. Select HTTP as the type
  5. Enter your drain URL
  6. Click Create
3

Verify

Trigger an error in your Railway service. It should appear in your Squasher dashboard within seconds.

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Error Detection

Squasher identifies errors from Railway logs using two strategies: Severity-based: Entries with severity set to error, fatal, critical, or err (case-insensitive). Message heuristic: If no severity is present, Squasher checks the message for keywords: error, panic, fatal, exception, unhandled.

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Log Entry Fields

FieldDescription
messageLog content
severityLog level (info, warn, error, fatal)
serviceNameRailway service name
environmentNameRailway environment (production, staging)
deploymentIdRailway deployment ID
timestampISO 8601 timestamp

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Multiple Services

If you have multiple Railway services in a project, you can either:
  1. One Squasher project per service — separate dashboards, separate alert rules
  2. One Squasher project for all — all errors in one view, filter by serviceName tag