Parse config file from SPIFFS on a ESP32 #1215
Description
Hi Blachon,
I've been using V5 for quite a while. Now decided to move to V6. I've read a couple of time that I just should remove the "readBytes" (as mentioned [here]).(#1159) .
I've tried a lot of different options, but non is working.
Here's where it goes wrong I guess:
/* std::unique_ptr<char[]> buf(new char[size]); //credFile.readBytes(buf.get(), size); credFile.read(buf,size); Serial.println(buf.get()); */ StaticJsonDocument<1024> jsonBuf; DeserializationError error = deserializeJson(jsonBuf, credFile); So I'm not sure if I still need the buffer or if I can just read the file directly..
Here's the full code:
bool loadConfig() { if (!SPIFFS.begin()) { Serial.println("Failed to mount file system"); return false; } File credFile = SPIFFS.open("/cred.json", "r"); if (!credFile) { Serial.println("Failed to open cred file"); return false; } size_t size = credFile.size(); Serial.print("Size cred file: "); Serial.println(size); if (size > 1024) { Serial.println("Cred file is bigger than 1024"); return false; } /* std::unique_ptr<char[]> buf(new char[size]); //credFile.readBytes(buf.get(), size); credFile.read(buf,size); Serial.println(buf.get()); */ StaticJsonDocument<1024> jsonBuf; DeserializationError error = deserializeJson(jsonBuf, credFile); if (error) { Serial.println("Failed to parse cred file"); return false; } /* const char *J_ssid = json["ssid"]; const char *J_pass = json["pass"]; const char *J_deviceId = json["ATTID"]; const char *J_token = json["ATTToken"]; const char *J_CONFIG_FIRMWARE_UPGRADE_URL = json["upgrade_URL"]; const char *J_tennant_URL = json["tennant_URL"]; */ strcpy(credentials.ssid, jsonBuf["ssid"]); strcpy(credentials.pass, jsonBuf["pass"]); strcpy(deviceId, jsonBuf["ATTID"]); strcpy(token, jsonBuf["ATTToken"]); strcpy(CONFIG_FIRMWARE_UPGRADE_URL, jsonBuf["upgrade_URL"]); strcpy(certURL, jsonBuf["cert_URL"]); Serial.print("SSID: "); Serial.println(ssid); Serial.print("pass: "); Serial.println(pass); Serial.print("ATT settings: "); Serial.println(deviceId); Serial.println(token); return true; } I'm using an Adafruit ESP32 feather and Platformio on VS code.
Regards,
David