ESP8266 Community Forum

- Sat Jul 28, 2018 7:34 pm #77462 Hello,
Usualy i use the module ESP8266 sketch data upload to upload my file but i would like to know if it's possible to create an empty file from sketch in case it doesn't exist.
I tried this :

Code: Select all#define CONFIG_FILE       "/data/config.json"

// create file config.json if not exist
  if (!SPIFFS.exists(CONFIG_FILE)){
    Serial.print("Creating "); Serial.println(CONFIG_FILE);
      File configFile = SPIFFS.open(CONFIG_FILE, "w");
     
      StaticJsonBuffer<200> jsonBuffer;
      JsonObject& json = jsonBuffer.createObject();
      json["serverName"] = "";
      json["accessToken"] = "";
      json.printTo(configFile);

      configFile.close();
  }

 // now should exit anyway
  File configFile = SPIFFS.open("/config.json", "r");
  if (!configFile) {
    Serial.println("Failed to open config file");
    return false;
    }

But not working.