9.10.1.8 +MQTTPROPTX

This command is used to read or set the MQTT transmit properties. This command is a configuration command which supports setting and getting parameter values. The behaviour of configuration commands is described in general in the 9.2.3 Configuration Commands section.

Any defined and selected properties are added to transmitted MQTT packets. Only properties applicable to the MQTT packet type are added. Properties must be selected via the 9.10.1.10 +MQTTPROPTXS command before they are included.

Note: Not all properties listed below may be available in any implementation of this command set.

User property (38) supports multiple entries in the form of key/value pairs. If a key/value pair is specified for the command it will be added, if only a key is specified it will be removed.

Security – Default Security for the command is: GGGG

Table 9-75. Command Syntax
Command	Description	Security
`AT+MQTTPROPTX`	Query all configuration elements	`GGGG`
`AT+MQTTPROPTX=<ID>`	Query a single element	`GGGG`
`AT+MQTTPROPTX=<ID>,<VAL>`	Set a single element	`GGGG`
`AT+MQTTPROPTX=<ID>,<KEY>,<VALS>`	Set a single key/value pair	`GGGG`

Table 9-76. Command Parameter Syntax
Parameter Name	Type	Description
`<ID>`	Integer	Parameter ID number
`<VAL>`	Integer String Byte Array	Parameter value
`<KEY>`	String	Parameter key
`<VALS>`	String	Parameter value

Table 9-77. Response Syntax
Response	Description
`+MQTTPROPTX:<ID>,<VAL>`	Read response
`+MQTTPROPTX:<ID>,<KEY>,<VALS>`	Read response (key/value)

Table 9-78. Response Element Syntax
Element Name	Type	Description
`<ID>`	Integer	Parameter ID number
`<VAL>`	Any	Parameter value
`<KEY>`	String	Parameter key
`<VALS>`	String	Parameter value

Table 9-79. Configuration Parameters
ID	Name	Type	Description	Security
17	`<SESSION_EXPIRY_INTERVAL>`	Integer	Session Expiry Interval	`GGGG`
38	`<USER_PROP>`	Byte Array	User Property This is a multiple value parameter with the range 38.0-38.9	`GGGG`