Re: JSON Parser
Posted:
Tue Jan 13, 2015 3:38 amby kmpm
a) I think nodeMCU is very much a part of this forum and it would be quite relevant to ask questions about it. Just look at the name of the forum section "Platforms -> LUA nodeMCU.com".[/list=]
b) Doing this in C (if you are now running in nodeMcu) would be a good thing since I think this would be a
thing that a lot of people are going to use for a lot of things[/*]
Re: JSON Parser
Posted:
Thu Mar 05, 2015 8:15 pmby Fab85
It would be nice to do some json parsing.
Re: JSON Parser
Posted:
Thu Mar 05, 2015 9:51 pmby Fab85
I made some small changes to Bycocojackr42 script. It's still quike and dirty .
Code: Select allfunction fromJson(MSG)
local hashMap = {}
local i = 1
local j = 1
for val in string.gmatch(MSG,'"%w+":"%w+",') do
hashMap[i] = {}
val = string.gsub(val, '":"', " ")
val = string.gsub(val, '"', "")
val = string.gsub(val, ',', "")
for sval in string.gmatch(val, "%S+") do
hashMap[i][j] = sval;
j = j + 1
end
j = 1
i = i+1
end
for val in string.gmatch(MSG,'"%w+":"%w+"}') do
hashMap[i] = {}
val = string.gsub(val, '":"', " ")
val = string.gsub(val, '"', "")
val = string.gsub(val, '}', "")
for sval in string.gmatch(val, "%S+") do
hashMap[i][j] = sval;
j = j + 1
end
j = 1
i = i+1
end
return hashMap
end
function toJson(MAP)
local outMsg = '{'
local i = 1
repeat
outMsg = outMsg..'"'..map[i][1]..'":"'..map[i][2]..'",'
i = i + 1
until map[i] == nil
return string.sub(outMsg,0,-2)..'}'
end
Re: JSON Parser
Posted:
Thu Apr 02, 2015 5:29 amby Michael Lee
This is supported in the latest firmware:
Code: Select alllocal json = require "cjson"
luaObject = json.decode("{\"json\": \"string\"}");
jsonString = json.encode(luaObject)