Send Event from Device

To send an event from the car, the gateway on the car must perform the following steps:

1. Read engine fault code: The gateway will read the engine fault code every minute.
2. Construct message: The gateway will construct JSON string for the event. - For example:

   { “engine_fault_code”: 10200 }
   

3. Encrypt message: The JSON event string must be encrypted using the producerPublicKey and the message must be encoded in Base64 format.
   For example:

   ”ew0KInRlbXAiOiAyNS4zLA0KImh1bWlkaXR5Iiw1NC44DQp9”
   

4. Generate a messageID: A unique messageID is generated to identify the message.
   For Example:

   “65eb9268-b0d1-4f75-a855-71eac716a351”
   

5. Construct event message: Construct a JSON message including messageID, deviceID, eventTemplateID and the encoded message.
   For Example:

   {
    “messageID”: “65eb9268-b0d1-4f75-a855-71eac716a351”,
    “deviceID”: “7d7289e5-a45b-42a1-a762-1a662756e715”,
    “eventTemplateID”: “48c713f8-5b69-49f0-afb1-e5618ac9bae9”,
    “message”: “ew0KInRlbXAiOiAyNS4zLA0KImh1bWlkaXR5Iiw1NC44DQp9”
   }
   

6. Send event: Send the event to IoT platform.