Read tag/resource data from a water utility's Ignition SCADA gateway via its REST/OpenAPI Gateway API

domain: inductiveautomation.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗

Steps

  1. Confirm the target Ignition Gateway version (8.3+) since the dynamically generated OpenAPI spec is documented at docs.inductiveautomation.com/docs/8.3/platform/gateway/openapi
  2. Fetch the gateway's live OpenAPI specification from its /openapi endpoint to enumerate the specific routes exposed by that gateway's installed modules
  3. Call the relevant documented Gateway REST route over HTTPS, depending on installed modules (e.g., Perspective, Tag Historian)
  4. Authenticate per the gateway's configured security/identity-provider integration
  5. Parse returned resource/tag data according to the OpenAPI schema returned by that specific gateway instance

Known gotchas

Related routes

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Query a water treatment plant's SCADA historian time-series data (flow, pressure, chlorine residual tags) via the AVEVA/OSIsoft PI Web API
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