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Use the JavaScript library for Node.js tools, simulators, gateways, and service integrations that need to interact with firmngin device or platform APIs.

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Use this library for

  • Device simulators.
  • Gateway processes that bridge non-MQTT devices.
  • Internal tools that read device state.
  • Automation helpers that need API access.

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Security note

Do not ship backend API tokens to browser code. Browser UI should call the firmngin backend through authenticated user sessions, not through service tokens embedded in JavaScript bundles.

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Basic client setup

[code:create JavaScript client with base URL and token, then list devices]

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Standard errors

[code:handle standard API error fields error and message] Always prefer the standard error and message fields when displaying API errors.