Google-cloud-php: [Firestore] add support for emulator

[smalot]

Google endpoint (gRPC) is hardcoded:

FirestoreGapicClient::SERVICE_ADDRESS = 'firestore.googleapis.com';
FirestoreGapicClient::DEFAULT_SERVICE_PORT = 443;

I can't find a way to enable emulator mode (localhost and specific port).

[dwsupplee]

@smalot, we should be able to add this :). @danielgsims would you mind taking a look, please?

[smalot]

I tried to override constants with localhost and 8080, but the connection is created using SSL which seems not to be used with the emulator.

[smalot]

according to the emulator, we should use FIRESTORE_EMULATOR_HOST env var.

https://storage.googleapis.com/firebase-preview-drop/emulator/cloud-firestore-emulator-v1.3.0.jar

firestore_1  | API endpoint: http://0.0.0.0:8080
firestore_1  | If you are using a library that supports the FIRESTORE_EMULATOR_HOST environment variable, run:
firestore_1  | 
firestore_1  |    export FIRESTORE_EMULATOR_HOST=0.0.0.0:8080
firestore_1  | 
firestore_1  | Dev App Server is now running.

[maximelebastard]

Hi, we're moving from Google Datastore to Firestore and we used the DATASTORE_EMULATOR_HOST environment variable for local dev.

The same behavior with FIRESTORE_EMULATOR_HOST on this lib would be great as Datastore users are more and more pushed to Firestore

[jdpedrie]

Hi @smalot, @maximelebastard. Support for the Firestore emulator is included in google/cloud v0.94.0, and shortly will be available in google/cloud-firestore v1.1.0.

[smalot]

It works like a charm !