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• Keep Alive
  • The MQTT keep alive timeout in seconds
• Max Message Size
  • The maximum message size in bytes that any message can be when pushing to IoT Hub. Generally, this should match the max message size allowed by IoTHub.
• Session Expiration
  • How long in seconds to specify for session token timeouts when not using certificate based authentication
• Content Type

  • The content type to include in the topic to Azure IoT Hub

    • NONE (default) - No content type header will be included with the message
    • APPLICATION_JSON - The application/json header will be included with the message and make the body of the message available for routing if content encoding is also not 'NONE'
  • See Using IoT Hub Message Based Routing tutorial for more details
• Content Encoding
  • The content encoding to include in the topic to Azure IoT Hub
    • NONE (default) - No content encoding header will be included with the message
    • UTF_8 - The 'utf-8' header will be included with the message and make the body of the message available for routing if the content type is also set to APPLICATION_JSON
    • UTF_16 - The 'utf-16' header will be included with the message and make the body of the message available for routing if the content type is also set to APPLICATION_JSON
    • UTF_32 - The 'utf-32' header will be included with the message and make the body of the message available for routing if the content type is also set to APPLICATION_JSON
    • ISO-8859-1 - The 'ISO-5589-1' header will be included with the message and make the body of the message available for routing if the content type is also set to APPLICATION_JSON
  • See Using IoT Hub Message Based Routing tutorial for more details
• Azure Date/Time Format
  • The date/time format to use when pushing messages to IoT Hub
    • LONG_MS_SINCE_EPOCH (default) - The timestamp values will all be as numbers in milliseconds since epoch (Jan 1, 1970) in UTC
    • STRING_AZURE_COMPAT - The timestamp will be pushed as described here. This is useful when wanting to use 'edge' timestamps in Azure Time Series insights.
  • See Pushing Data to Azure Time Series Insights tutorial for more details

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