Send or become a Json String from/ to a http ADR

[Helmut_number_one]

I want to send a JSON string to a web address, my exercises have no result.
The Code is

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if (token$ ="4157") then  ' if the token correspond to the read request
  if (word$(r$, 2) <> "Error") then  'if is not an error
    'assemble the 4 bytes in one 32 bits word
    value$ = "&h"+ word$(r$, 5) + word$(r$, 6) + word$(r$, 7) + word$(r$, 8)
    Ergebnis1= val(value$)
    Ergebnis =  ( CONVERT.FROM_IEEE754(Ergebnis1) )    
    Ergebnis4157$ = str$(Ergebnis,"%5.1f") + " W Momentleistung"
    wlog Ergebnis4157$
    
[b]    'a$ = WPOST$ ( "192.168.0.104/" ,  { "total": Ergebnis4157$ } , 80 )[/b]
  end if

Please can you help?

[cicciocb]

What is the destination server?
Have you tried this ?

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[Helmut_number_one]

Ah, I change my wish because it's more flexible.
Can I also make a JSON query on my ANNEX ESP32 IP address with the result?
If i write http://198.168.x.104/emeter i want the result in my Modbus RTO ESP32 Annex Basic PRG.
i become this JSON path example return :
power/total/watts - Finds 123.4 in { "power": { "phase1": { "factor": 0.98, "watts": 42 }, "total": { "watts": 123.4 } } }
total - Finds 123.4 in { "othervalue": 66, "total": 123.4 }
is that possible?

[cicciocb]

Do you want receive an answer from Annex?
I mean, the address http://198.168.x.104/emet is an annex module ?

[Helmut_number_one]

When a request comes from a device to my Annex Basic ESP32,
a JSON response with my data from the energy measuring device should come to the requesting device.

[cicciocb]

When a request comes from a device to my Annex Basic ESP32,
a JSON response with my data from the energy measuring device should come to the requesting device.

In this case you must use the event OnUrlMessage
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