IotWebConf
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20 hours ago •
prampec
prampec
how to serve file from SPIFFS?
I'd like to serve some txt files stored in SPIFFS.
The one part I can't figure out is in setup(). This is the equivalent for Async, but not sure how to do it with IotWebConf:
server.on("/logs", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(SPIFFS, "/log0.txt", "text/html");
});
I couldn't figure out the easy way to do it, so I did it the hard way.
This function loads the file into a string:
void serve_logs()
{
String s = F("<!DOCTYPE html><html lang=\"en\"><head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1, user-scalable=no\"/>");
s += "<title>";
s += iotWebConf.getThingName();
s += "</title><body>";
File file = SPIFFS.open("/log0.txt", "r");
if(!file || file.isDirectory()){
Serial.println("- failed to open file for reading");
s += "no logs available</body></html>\n";
server.send(200, "text/html", s);
return;
}
String a;
while(file.available())
{
a = char(file.read());
if(a=="\n")
s+="<br>";
else
s += a;
}
file.close();
s += "</body></html>\n";
server.send(200, "text/html", s);
}
And this goes in setup()
server.on("/logs", serve_logs);
simply
server.serveStatic("/", SPIFFS, "/index.html");
Where/how would I call this line?
For example, I'd want someone to click a link to a .txt and it'd just load up. Or ideally long press the link, and the user would have the option to save the file.