JSON-C is a C library for parsing and generating JSON. It includes a reference counted model for JSON objects.
For more information: JSON-C - A JSON implementation in C
Questions tagged [json-c]
86 questions
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json-c how remove a string element from a json array?
let's say I have this json-array :
"test": { "d": "med", "min": [ "low","med","high"]}
now using json-c api I want to remove the high string from the key min.
int arrLen=json_object_array_length(test_array_min);
int j=0;
json_object…
Nizan
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- 1
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1 answer
Use of json_object_put() in C library
I am using the json-c in my C program (not C++). I am getting segfaults from time to time and trying to debug. To be honest, I might not have the full understanding how the library works so I am looking for any advice.
This is partially how I am…
Christian
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- 8
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Adding object to JSON-C array in loop
I am trying to build a JSON object using the json-c library and I am using the C language.
I would like to know the best way to add objects to an array in a loop.
What I have:
struct json_object * build_array(char *input_buffer) {
struct…
spiderwebdev
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0 answers
import JSONC files into react app and use the properties
I have a app where i would like it to import all my jsonc files and be able to iterate through the objects i the files.
Right now i have this function, which imports the files:
function importAll(r) {
let files = {};
…
Nadia Hansen
- 697
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1 answer
Updating a value of key in json-c object
I am trying to create a temporary database using json-c. For that i have created a simple function which return a json object with default value as key:{"value":data} pair and then i am trying to update value of existing signals in database. But…
shubham kadu
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- 1
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1 answer
Can't free my json object in C (assertion failed)
I've the following JSON object:
{
"heartbeat": {
"status": 0,
"tempID": 1210254506,
"firmware": "obu-hmi-commsignia",
"sync": 1,
"upgrade": 0,
"log": 0,
"fix": 3,
"rsu": 1,
"numTx": 5813,
"numRx": 5685,
…
ofstack773
- 49
- 5
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0 answers
Memory leak with json-c in multi-threaded C++ program
I have a memory leak in my program and cannot understand why.
My program is multi-threaded and uses json-c and glib.
Thread 1 calls the following method every time it receives data over a UDP stream.
void foo(state_t *self, const char *data)
{
…
olivier
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- 1
0
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1 answer
Youtube API - Querying JSON for a video id loads empty embedded iframe
I put it all here: http://jsfiddle.net/uJ3h7/
But I'll repost the mark-up…
Angel Marino
- 95
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1 answer
There is no json.h in \usr\include\json-c directory ' ../nvme.h:26:10: fatal error: json.h: No such file or directory'
There is no "json.h" in "\usr\include\json-c" directory. Is there an application that I have to install? I have installed "sudo apt-get install libjsoncpp-dev," but it is not working.
ubuntu@nvme-cli:~/nvme-cli$ ninja -C .build
ninja: Entering…
Hossein
- 113
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- 6
0
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1 answer
Constructing json object in C with json-c
I am new to json-c.
I am able to create JSON object in the format:
{"loglevel":"INFO", "msg":"Info about car", "timestamp":"actual system time"}
but I need help in creating the JSON object in the format:
{"module":"log","version":1.0,…
Manukumar Puttaswamy
- 9
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- 5
0
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1 answer
Free memory of all json_objects from root (including root)
I have this code:
struct json_object* parsed_json;
struct json_object* portInConfig;
struct json_object* masterInConfig;
struct json_object* mapInConfig;
struct json_object* managerPasswdInConfig;
struct json_object*…
Haxk20
- 77
- 7
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1 answer
How to loop through keys and values in C using the json-c library?
I'm using json-c to parse json. Is it possible to loop through the keys and values.
json_object_object_get_ex() : this function requires prior knowledge what the keys are. What if we don't know the keys and we have to loop through them.
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1 answer
extracting data from JSON file to a structure in c
This code aim to extract data from a JSON file:
[{ "name": "alice", "age": 30, "friends" : ["marc","max" ,"alice"] },
{"name": "john", "age": 25,"friends" : ["fr","mario" ,"Jim"]}]
and store the data into a structure so this is the code:
static…
ing23
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How to use Json-c parser or any other parser in Eclipse for C programming in Windows
I use Eclipse C/C++ developer IDE in Windows 10 I have downloaded json-c parser but I dont know to use it in eclipse for C Programming. I downloaded it from this link https://github.com/json-c/json-c. I have downloaded the Json Editor Plugin from…
Nishith
- 33
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1 answer
Traversing through and modifying a C json string
What's the correct way to traverse and modify a JSON string in C?
Specifically, I have a string, body_buf. When printed out
print("length: %d\n%.*s\n", body_len, body_len, body_buf);
It looks like this:
length:…
ajfbiw.s
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