http post json.txt

POST /api HTTP/1.1\r\nContent-Type: application/javascript\r\nUser-Agent: Post
manRuntime/7.30.0\r\nAccept: */*\r\nCache-Control: no-cache\r\nPostman-Token: 91
2ebdcc-bac5-4b2f-b913-b4706e509cd0\r\nHost: 192.168.1.246\r\nAccept-Encoding: gz
ip, deflate, br\r\nConnection: keep-alive\r\nContent-Length: 123\r\n\r\n{\r\n
 "action" : "setLedColour",\r\n    "colour" : "blue",\r\n    "text" : "this is l
ine 1\\nthis is line 2\\nthis is line 3"\r\n}


POST /api HTTP/1.1
Content-Type: application/javascript
User-Agent: PostmanRuntime/7.30.0
Accept: */*
Cache-Control: no-cache
Postman-Token: 912ebdcc-bac5-4b2f-b913-b4706e509cd0
Host: 192.168.1.246
Accept-Encoding: gzip, deflate, br
Connection: keep-alive
Content-Length: 123

{
    "action" : "setLedColour",
    "colour" : "blue",
    "text" : "this is line 1\nthis is line 2\nthis is line 3"
}