Async RTDB Get

[peterz0310]

Hey again, is there something along the lines of an 'async get' in this library? Or a way to accomplish something similar? My program sometimes needs to get a couple fields from the database, but when a retrieval fails, it freezes up the entire program for a minute while the request times out. In my case, it's fine if it fails to get the data. I just can't have it prevent the rest of the program from running in the meantime. I need it to be able to recover more gracefully. In other words, is there a way to set the timeout of a get operation? Thanks.

[mobizt]

There is no async get in this library.

You have to set the buffer size to fit your data in case of read time out.

Firebase-ESP-Client/examples/RTDB/Basic/Basic.ino

Line 123 in c382967

fbdo.setBSSLBufferSize(4096 /* Rx buffer size in bytes from 512 - 16384 */, 1024 /* Tx buffer size in bytes from 512 - 16384 */);

[peterz0310]

Besides taking up memory unnecessarily, is there a downside to setting the buffer higher than is required? If I have the resources then why wouldn't I? Should it be close to the size of the data being downloaded? I've found that no matter how high I set the buffer, it still has occasional issues with getInt and freezing up. The int in question never exceeds 1 digit so it seems unnecessary to set a high buffer. I may be thinking about this completely wrong, thanks for the support.

[mobizt]

For the case buffer is big enough, the time out is because the session was timed out and bugs in WiFiClient that implemented internally.

You can use fbdo.stopWiFiClient(); to close the session when the connection established longer than 1 minute.

You can try this new FirebaseClient library for async operation.