How to parse json?

Firmware
1

my original json string is getting from get request is

{"hour":"[10,14,18]","level":"[25,50,80]","maxdist":110}

for this i get error while compiling as " expected ',' or ';' before 'hour' "

but when i add slash to it like this

"{"hour":[10,14,18],"level":[25,50,80],"maxdist":110}";

all values i can get perfectly....

so how to add those slashes

i gone through this link but didn't get

2

Your nested double quotes need to be escaped as "this is \"someQuotedText\" inside a string"

And these “slashes” are actually “back-slashes” and you should find a key on your keyboard to enter them in your code :wink:

These backslashes never really end up as part of the string but they are only a convention how to code quoted sub-strings inside a string.
This is something inherently C/C++ related and is nothing Particle specific, hence getting the C/C++ basics straight might be a basic step in order to successfully write C/C++ code :sunglasses:

1 Like
3

here i changed my response

“{‘hour’:[10,14,18],‘level’:[25,50,80],‘maxdist’:110}”;

it working ok

4

Hi viraj,

Please help me to solve the JSON parsing for 3 values from server side.
I dont know how to send the JSON string from ubuntu CLI please help me if you know

5

use the arduino json libarary for parsing values
and also sample examples are there

1 Like
6

Try pasting your json in this validator for valid json - it is a lot easier than trial and error!

https://jsonformatter.curiousconcept.com/