Thanks.
I cant see how to insert a body in the http request node.
I did try to send a msg.body = {"value": false}; in a function, but that did not work
[{"id":"cb1dfcde.fd153","type":"function","z":"f3ad92f.bcc277","name":"set payload and headers","func":"//msg.payload = \"data to post\";\nmsg.headers = {};\nmsg.headers['Authorization'] = 'bearer ocnzAwYT2FvR0IfpwIDqSf5dRJXztIWb7CChkd4blQ4=';\n//msg.url = \"http://192.168.0.170/api/v1/\";\nmsg.url = \"http://192.168.0.170/api/v1/devices/d9/e1/Light/OnOff/OnState\";\nmsg.method = \"POST\";\nmsg.body = {};\nmsg.body = {\"value\": false};\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":390,"y":320,"wires":[["e44209e7.752698"]]},{"id":"dcf34aab.218928","type":"inject","z":"f3ad92f.bcc277","name":"","props":[{"p":"payload","v":"","vt":"date"},{"p":"topic","v":"","vt":"string"}],"repeat":"","crontab":"","once":false,"topic":"","payload":"","payloadType":"date","x":200,"y":320,"wires":[["cb1dfcde.fd153"]]},{"id":"e44209e7.752698","type":"http request","z":"f3ad92f.bcc277","name":"post to HttpBin","method":"use","ret":"obj","paytoqs":"ignore","url":"","tls":"","persist":false,"proxy":"","authType":"","x":600,"y":240,"wires":[["ee306582.f0dde8"]]},{"id":"ee306582.f0dde8","type":"debug","z":"f3ad92f.bcc277","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":750,"y":320,"wires":[]}]