OMA Next Generation Services Interface 10

The ngsi node type implements an interface to FIWARE context brokers following the NGSI 10 RESTful HTTP API.

This implementation if currently limited to the updateContext operation. Therefore only publishing updates is supported. Subscribtion or polling of events is planned for later versions. It's using libcurl and libjansson to communicate with the context broker over JSON.

Configuration

You can use the vectorize setting to send multiple samples in a vector.

Every ngsi node supports the following special settings:

`endpoint` (string: URL)

`entity_id` (string)

`entity_type` (string)

`ssl_verify` (boolean)

`timeout` (float: seconds)

`mapping` (array of strings)

Format AttributeName(AttributeType)

Example

nodes = {
	ngsi_node = {
		type = "ngsi",
	
	### The following settings are specific to the ngsi node-type!! ###

		endpoint = "http://46.101.131.212:1026",# The HTTP REST API endpoint of the FIRWARE context broker
	
		entity_id = "S3_ElectricalGrid",	
		entity_type = "ElectricalGridMonitoring",
	
		timeout = 5,				# Timeout of HTTP request in seconds (default is 1)
		verify_ssl = false,			# Verification of SSL server certificates (default is true)

		mapping = [				# Format: "AttributeName(AttributeType)"
			PTotalLosses(MW)",
			"QTotalLosses(Mvar)"
		]
	}
}

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OMA Next Generation Services Interface 10

Configuration

endpoint (string: URL)

entity_id (string)

entity_type (string)

ssl_verify (boolean)

timeout (float: seconds)

mapping (array of strings)