How to send POST request from commandline? - linux

Question

I'm trying to send an "on" signal to a wemo smart plug. I want to send the signal from the linux command line. I know that the request is supposed to look like what I've included below, but I'm not sure what syntax to use. I tried using cURL, but couldn't quite seem to figure it out. Any help would be super appreciated!
POST /upnp/control/basicevent1
SOAPACTION: "urn:Belkin:service:basicevent:1#SetBinaryState"
Content-Type: text/xml; charset="utf-8"
Accept: */*
User-Agent: PostmanRuntime/7.15.2
Cache-Control: no-cache
Host: 192.168.1.116:49153
Accept-Encoding: gzip, deflate
Content-Length: 306
Connection: keep-alive
<?xml version="1.0" encoding="utf-8"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<u:SetBinaryState xmlns:u="urn:Belkin:service:basicevent:1">
<BinaryState>0</BinaryState>
</u:SetBinaryState>
</s:Body>
</s:Envelope>
I tried putting each of the headers in quotes after a "-H" but then I wasn't sure what to do with the headers that are already quoted. Also, it appeared to be still sending to port 80 even though I included the host header with a different port?
As far as I know, the plug has an IP address but no web address.

Answer 1

Post method have two part (header & body).
You should run cURL command like that:
Send Header:
curl -X POST -H 'SOAPACTION: "urn:Belkin:service:basicevent:1#SetBinaryState"' -H 'Content-Type: text/xml; charset="utf-8"' http://192.168.1.116:49153/upnp/control/basicevent1
With this method, you can head multi header POST.
Send body POST:
And also with that command you can send POST body:
curl -X POST -F '<?xml version="1.0" encoding="utf-8"?>...' http://192.168.1.116:49153/upnp/control/basicevent1
Also, they're available at the following links:
How to send body POST ,
How to send header POST
Command you want at single line:
curl -X POST -H 'SOAPACTION: "urn:Belkin:service:basicevent:1#SetBinaryState"' -H 'Content-Type: text/xml; charset="utf-8"' -H 'Accept: */*' -H 'User-Agent: PostmanRuntime/7.15.2' -H 'Cache-Control: no-cache' -H 'Host: 192.168.1.116:49153' -H 'Accept-Encoding: gzip, deflate' -H 'Content-Length: 306' -H 'Connection: keep-alive' -F '<?xml version="1.0" encoding="utf-8"?>\n<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">\n <s:Body>\n <u:SetBinaryState xmlns:u="urn:Belkin:service:basicevent:1">\n <BinaryState>0</BinaryState>\n </u:SetBinaryState>\n </s:Body>\n</s:Envelope>' http://192.168.1.116:49153/upnp/control/basicevent1
alias
If you think this is a long command, you can set as alias.
For e.g:
alias myPersonalCommandLS='ls -lthra1d'