cammiboi / jsonFunctions

ESP-32 esp-idf component: C functions to parse JSON strings

jsonFunctions

ESP-32 eps-idf component to parse JSON strings

Functions

int jsonTagFinder(char *jsonStringToSearch, char *tagToFind, char *stringToStoreValue, int maxValueLength);

given:

• a pointer to JSON string to search, jsonStringToSearch
• a pointer to string of the key to find, tagToFind
• the maximum length of the value, aka maximum number of characters of the value to copy

it returns:

• return value - -1 if not found and 0 if found
• the found value in stringToStoreValue - pointer to string where the found value should be copied to

int jsonGetArray(char *jsonStringToSearch, char *tagToFind, int *arrayToStoreValues, int maxArrayLength);

given:

• a pointer to JSON string to search, jsonStringToSearch
• a pointer to string of the key to find, tagToFind
• the maximum length of the array to find, maxArrayLength

it returns:

• return value - -1 if not found and 0 if found
• the found array copied to arrayToStoreValues, up to maxArrayLength values