feat(firestore): split GAPIC from the firestore handwritten package

handwritten/firestore/dev/src/index.ts

@@ -1,3 +1,5 @@
+import {protos} from '@google-cloud/firestore-api';
+export {protos};
 /*!
  * Copyright 2017 Google Inc. All Rights Reserved.
  *
@@ -75,7 +77,7 @@ import {
 } from './validate';
 import {WriteBatch} from './write-batch';
 
-import {interfaces} from './v1/firestore_client_config.json';
+import {interfaces} from '@google-cloud/firestore-api/build/src/v1/firestore_client_config.json';
 const serviceConfig = interfaces['google.firestore.v1.Firestore'];
 
 import api = google.firestore.v1;
@@ -636,33 +638,30 @@ export class Firestore implements firestore.Firestore {
           }
         }
 
-        if (this._settings.ssl === false) {
-          const grpcModule = this._settings.grpc ?? require('google-gax').grpc;
-          const sslCreds = grpcModule.credentials.createInsecure();
+        const grpcOptions = Object.assign(
+          {
+            'grpc-node.flow_control_window': 256 * 1024,
+          },
+          this._settings.grpcOptions,
+        );
 
-          const settings: ClientOptions = {
-            sslCreds,
-            ...this._settings,
-            fallback: useFallback,
-          };
+        let settings: ClientOptions = {
+          ...this._settings,
+          grpcOptions,
+          fallback: useFallback,
+        };
 
-          // Since `ssl === false`, if we're using the GAX fallback then
-          // also set the `protocol` option for GAX fallback to force http
+        if (this._settings.ssl === false) {
+          const grpcModule = this._settings.grpc ?? require('google-gax').grpc;
+          settings.sslCreds = grpcModule.credentials.createInsecure();
           if (useFallback) {
             settings.protocol = 'http';
           }
-
-          client = new module.exports.v1(settings, gax);
-        } else {
-          client = new module.exports.v1(
-            {
-              ...this._settings,
-              fallback: useFallback,
-            },
-            gax,
-          );
         }
 
+        const v1Client = (module.exports.v1 && module.exports.v1.FirestoreClient) || module.exports.v1;
+        client = new v1Client(settings, gax);
+
         logger(
           'clientFactory',
           null,
@@ -2028,8 +2027,14 @@ module.exports = Object.assign(module.exports, existingExports);
  */
 Object.defineProperty(module.exports, 'v1beta1', {
   // The v1beta1 module is very large. To avoid pulling it in from static
-  // scope, we lazy-load the module.
-  get: () => require('./v1beta1'),
+  // scope, we lazy-load  the module.
+  get: () => {
+    const api = require('@google-cloud/firestore-api').v1beta1;
+    const fn = function(this: any, ...args: any[]) {
+      return new (api.FirestoreClient as any)(...args);
+    };
+    return Object.assign(fn, api);
+  },
 });
 
 /**
@@ -2043,17 +2048,15 @@ Object.defineProperty(module.exports, 'v1beta1', {
 Object.defineProperty(module.exports, 'v1', {
   // The v1 module is very large. To avoid pulling it in from static
   // scope, we lazy-load  the module.
-  get: () => require('./v1'),
+  get: () => {
+    const api = require('@google-cloud/firestore-api').v1;
+    const fn = function(this: any, ...args: any[]) {
+      return new (api.FirestoreClient as any)(...args);
+    };
+    return Object.assign(fn, api);
+  },
 });
 
-/**
- * {@link Status} factory function.
- *
- * @private
- * @internal
- * @name Firestore.GrpcStatus
- * @type {function}
- */
 Object.defineProperty(module.exports, 'GrpcStatus', {
   // The gax module is very large. To avoid pulling it in from static
   // scope, we lazy-load the module.

handwritten/firestore/dev/src/telemetry/enabled-trace-util.ts

@@ -33,8 +33,8 @@ import {
   TraceUtil,
 } from './trace-util';
 
-import {interfaces} from '../v1/firestore_client_config.json';
-import {FirestoreClient} from '../v1';
+import {interfaces} from '@google-cloud/firestore-api/build/src/v1/firestore_client_config.json';
+import {FirestoreClient} from '@google-cloud/firestore-api/build/src/v1';
 import {DEFAULT_DATABASE_ID} from '../path';
 import {DEFAULT_MAX_IDLE_CHANNELS} from '../index';
 const serviceConfig = interfaces['google.firestore.v1.Firestore'];

handwritten/firestore/dev/src/util.ts

@@ -19,7 +19,7 @@ import {DocumentData} from '@google-cloud/firestore';
 import {randomBytes} from 'crypto';
 import type {CallSettings, ClientConfig, GoogleError} from 'google-gax';
 import type {BackoffSettings} from 'google-gax/build/src/gax';
-import * as gapicConfig from './v1/firestore_client_config.json';
+import * as gapicConfig from '@google-cloud/firestore-api/build/src/v1/firestore_client_config.json';
 import Dict = NodeJS.Dict;
 
 /**