Firestore & Firebase

[WookiMan]

Hi All,

Couple questions,

1. For MultipathStream, is there a Json iterator for it, I've used the SinglePath and read the RTDBhelper.h and there doesn't seem to be any functions for MulitPath. I Have gotten the Multipath to work for listening to changes but ideally need something to work when the esp32 is powered on to read RTDB to restore values etc.

2. Is there a Stream function for FireStore? I've seen the Query example but I would like a stream like functionality as I don't want to run a get in the loop.

Thanks and if you have any ideas questions please let me know :)

[mobizt]

1. MultiPath Stream is a Stream that using stream.get to check that the predefined child node key exists in the MultiPathStream data or not.
   

   Firebase-ESP32/examples/DataChangesListener/MultiPath/MultiPath.ino

   Lines 60 to 70 in 85bd1d9

   	void streamCallback(MultiPathStreamData stream)
   	{
   	size_t numChild = sizeof(childPath) / sizeof(childPath[0]);
   	for (size_t i = 0; i < numChild; i++)
   	{
   	if (stream.get(childPath[i]))
   	{
   	Serial.printf("path: %s, event: %s, type: %s, value: %s%s", stream.dataPath.c_str(), stream.eventType.c_str(), stream.type.c_str(), stream.value.c_str(), i < numChild - 1 ? "\n" : "");
   	}
   	}

The value from MultiPathStream object obtained from method stream.value.c_str() is string which is the event data returns from Stream.

The type of data received from Stream can be obtained from stream.type.c_str() i.e., json, string array, float, double, boolean, int, blob, file, null.

If the method stream.type.c_str() returns "json", you can use FirebaseJson or any JSON library to parse it.

2. It's not support in the Google Firebase REST API that this library works for.

[mobizt]

This library does not support Firestore. You should use this library that supports Firestore and the feature in No2. that you are asking is not available in REST API.

[WookiMan]

Thank you for the explanation.

Apologies for posting the question in the wrong library, I am aware of the ESP-Client library.