JSON_OBJECT_SIZE(Helper::getOccurences(reinterpret_cast<char *>(payload), COLON)) is inaccurate to calculate jsonBuffer size

[majidahmadov]

Problem:
I was testing OTA for ESP32 device. I realized when I delete assigned firmware of my device, I am receving [TB] Unable to de-serialize received json data with error (DeserializationError::NoMemory).
THINGSBOARD_ENABLE_DYNAMIC is enabled.
After printing output I realized calculated Json object size is not correct. This is the payload sent when assigned firmware cleared for device.
{
"deleted": [
"fw_checksum_algorithm",
"fw_version",
"fw_ts",
"fw_tag",
"fw_checksum",
"fw_title",
"fw_state",
"fw_size",
"fw_url"
]
}

And JSON_OBJECT_SIZE(Helper::getOccurences(reinterpret_cast<char *>(payload), COLON)) is returning 16 to deserialize this payload

[MathewHDYT]

Has been mentioned in this Pull Request and fixed in this Pull Request.

[majidahmadov]

Oh, thank you