smartDEN
IP-16R-XX
User Manual
13 Apr 2021
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36
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9. HTTP/XML/JSON access
This operation mode allows custom applications to control the
smartDEN IP-16R-
XX
without using a Web-browser. The custom application acts as a HTTP client,
sending HTTP GET requests to the
smartDEN IP-16R-XX
.
Figure 9.1.
smartDEN IP-16R-XX
working as a HTTP server
To receive the current state of the
smartDEN IP-16R-XX,
the application requests
the page
current_state.xml (current_state.json)
, for example:
http://192.168.1.100/current_state.xml
http://192.168.1.100/current_state.json
The custom application can also control the
smartDEN IP-16R-XX
by sending
parameters (name/value pairs) with the HTTP/XML/JSON GET request, for example:
http://192.168.1.100/current_state.xml?Relay=1&Relay2=0&Relay3=1
http://192.168.1.100/current_state.json?Relay=1&Relay2=0&Relay3=1
The XML/JSON login process differs depending on the selected
Encrypt
Password
option.
9.1. Login (Encrypted Password)
In this mode a two-step login sequence is provided as a protection against
unauthorized access. The first time the custom application requests the page
current_state.xml / current_state.json
, a random login key is issued in the reply. Next
the custom application uses this key to encrypt the password. The encrypted
password is sent as a parameter with the next request to the page
current_state.xml /
current_state.json
.
Bellow is an example of login process:
Step 1:
Request
http://192.168.1.100/current_state.xml
Reply (login required):
