fix(browser): check for fetch on window (#718)

Author: yoshi-automation

protos/protos.json

@@ -16,6 +16,7 @@
 // ** https://github.com/googleapis/gapic-generator-typescript **
 // ** All changes to this file may be overwritten. **
 
+/* global window */
 import * as gax from 'google-gax';
 import {
  Callback,
@@ -30,6 +31,11 @@ import * as path from 'path';
 import {Transform} from 'stream';
 import {RequestType} from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
+/**
+ * Client JSON configuration object, loaded from
+ * `src/v2/contexts_client_config.json`.
+ * This file defines retry strategy and timeouts for all API methods in this library.
+ */
 import * as gapicConfig from './contexts_client_config.json';
 
 const version = require('../../../package.json').version;
@@ -83,9 +89,9 @@ export class ContextsClient {
  * your project ID will be detected automatically.
  * @param {string} [options.apiEndpoint] - The domain name of the
  * API remote host.
- * @param {gax.ClientConfig} [options.clientConfig] - client configuration override.
- * TODO(@alexander-fenster): link to gax documentation.
- * @param {boolean} fallback - Use HTTP fallback mode.
+ * @param {gax.ClientConfig} [options.clientConfig] - Client configuration override.
+ * Follows the structure of {@link gapicConfig}.
+ * @param {boolean} [options.fallback] - Use HTTP fallback mode.
  * In fallback mode, a special browser-compatible transport implementation is used
  * instead of gRPC transport. In browser context (if the `window` object is defined)
  * the fallback mode is enabled automatically; set `options.fallback` to `false`
@@ -98,7 +104,9 @@ export class ContextsClient {
  opts?.servicePath || opts?.apiEndpoint || staticMembers.servicePath;
  const port = opts?.port || staticMembers.port;
  const clientConfig = opts?.clientConfig ?? {};
- const fallback = opts?.fallback ?? typeof window !== 'undefined';
+ const fallback =
+ opts?.fallback ??
+ (typeof window !== 'undefined' && typeof window?.fetch === 'function');
  opts = Object.assign({servicePath, port, clientConfig, fallback}, opts);
 
  // If scopes are unset in options and we're connecting to a non-default endpoint, set scopes just in case.
@@ -339,7 +347,7 @@ export class ContextsClient {
  // -------------------
  getContext(
  request: protos.google.cloud.dialogflow.v2.IGetContextRequest,
- options?: gax.CallOptions
+ options?: CallOptions
  ): Promise<
  [
  protos.google.cloud.dialogflow.v2.IContext,
@@ -349,7 +357,7 @@ export class ContextsClient {
  >;
  getContext(
  request: protos.google.cloud.dialogflow.v2.IGetContextRequest,
- options: gax.CallOptions,
+ options: CallOptions,
  callback: Callback<
  protos.google.cloud.dialogflow.v2.IContext,
  protos.google.cloud.dialogflow.v2.IGetContextRequest | null | undefined,
@@ -389,7 +397,7 @@ export class ContextsClient {
  getContext(
  request: protos.google.cloud.dialogflow.v2.IGetContextRequest,
  optionsOrCallback?:
- | gax.CallOptions
+ | CallOptions
  | Callback<
  protos.google.cloud.dialogflow.v2.IContext,
  | protos.google.cloud.dialogflow.v2.IGetContextRequest
@@ -410,12 +418,12 @@ export class ContextsClient {
  ]
  > | void {
  request = request || {};
- let options: gax.CallOptions;
+ let options: CallOptions;
  if (typeof optionsOrCallback === 'function' && callback === undefined) {
  callback = optionsOrCallback;
  options = {};
  } else {
- options = optionsOrCallback as gax.CallOptions;
+ options = optionsOrCallback as CallOptions;
  }
  options = options || {};
  options.otherArgs = options.otherArgs || {};
@@ -430,7 +438,7 @@ export class ContextsClient {
  }
  createContext(
  request: protos.google.cloud.dialogflow.v2.ICreateContextRequest,
- options?: gax.CallOptions
+ options?: CallOptions
  ): Promise<
  [
  protos.google.cloud.dialogflow.v2.IContext,
@@ -440,7 +448,7 @@ export class ContextsClient {
  >;
  createContext(
  request: protos.google.cloud.dialogflow.v2.ICreateContextRequest,
- options: gax.CallOptions,
+ options: CallOptions,
  callback: Callback<
  protos.google.cloud.dialogflow.v2.IContext,
  | protos.google.cloud.dialogflow.v2.ICreateContextRequest
@@ -488,7 +496,7 @@ export class ContextsClient {
  createContext(
  request: protos.google.cloud.dialogflow.v2.ICreateContextRequest,
  optionsOrCallback?:
- | gax.CallOptions
+ | CallOptions
  | Callback<
  protos.google.cloud.dialogflow.v2.IContext,
  | protos.google.cloud.dialogflow.v2.ICreateContextRequest
@@ -511,12 +519,12 @@ export class ContextsClient {
  ]
  > | void {
  request = request || {};
- let options: gax.CallOptions;
+ let options: CallOptions;
  if (typeof optionsOrCallback === 'function' && callback === undefined) {
  callback = optionsOrCallback;
  options = {};
  } else {
- options = optionsOrCallback as gax.CallOptions;
+ options = optionsOrCallback as CallOptions;
  }
  options = options || {};
  options.otherArgs = options.otherArgs || {};
@@ -531,7 +539,7 @@ export class ContextsClient {
  }
  updateContext(
  request: protos.google.cloud.dialogflow.v2.IUpdateContextRequest,
- options?: gax.CallOptions
+ options?: CallOptions
  ): Promise<
  [
  protos.google.cloud.dialogflow.v2.IContext,
@@ -541,7 +549,7 @@ export class ContextsClient {
  >;
  updateContext(
  request: protos.google.cloud.dialogflow.v2.IUpdateContextRequest,
- options: gax.CallOptions,
+ options: CallOptions,
  callback: Callback<
  protos.google.cloud.dialogflow.v2.IContext,
  | protos.google.cloud.dialogflow.v2.IUpdateContextRequest
@@ -582,7 +590,7 @@ export class ContextsClient {
  updateContext(
  request: protos.google.cloud.dialogflow.v2.IUpdateContextRequest,
  optionsOrCallback?:
- | gax.CallOptions
+ | CallOptions
  | Callback<
  protos.google.cloud.dialogflow.v2.IContext,
  | protos.google.cloud.dialogflow.v2.IUpdateContextRequest
@@ -605,12 +613,12 @@ export class ContextsClient {
  ]
  > | void {
  request = request || {};
- let options: gax.CallOptions;
+ let options: CallOptions;
  if (typeof optionsOrCallback === 'function' && callback === undefined) {
  callback = optionsOrCallback;
  options = {};
  } else {
- options = optionsOrCallback as gax.CallOptions;
+ options = optionsOrCallback as CallOptions;
  }
  options = options || {};
  options.otherArgs = options.otherArgs || {};
@@ -625,7 +633,7 @@ export class ContextsClient {
  }
  deleteContext(
  request: protos.google.cloud.dialogflow.v2.IDeleteContextRequest,
- options?: gax.CallOptions
+ options?: CallOptions
  ): Promise<
  [
  protos.google.protobuf.IEmpty,
@@ -635,7 +643,7 @@ export class ContextsClient {
  >;
  deleteContext(
  request: protos.google.cloud.dialogflow.v2.IDeleteContextRequest,
- options: gax.CallOptions,
+ options: CallOptions,
  callback: Callback<
  protos.google.protobuf.IEmpty,
  | protos.google.cloud.dialogflow.v2.IDeleteContextRequest
@@ -679,7 +687,7 @@ export class ContextsClient {
  deleteContext(
  request: protos.google.cloud.dialogflow.v2.IDeleteContextRequest,
  optionsOrCallback?:
- | gax.CallOptions
+ | CallOptions
  | Callback<
  protos.google.protobuf.IEmpty,
  | protos.google.cloud.dialogflow.v2.IDeleteContextRequest
@@ -702,12 +710,12 @@ export class ContextsClient {
  ]
  > | void {
  request = request || {};
- let options: gax.CallOptions;
+ let options: CallOptions;
  if (typeof optionsOrCallback === 'function' && callback === undefined) {
  callback = optionsOrCallback;
  options = {};
  } else {
- options = optionsOrCallback as gax.CallOptions;
+ options = optionsOrCallback as CallOptions;
  }
  options = options || {};
  options.otherArgs = options.otherArgs || {};
@@ -722,7 +730,7 @@ export class ContextsClient {
  }
  deleteAllContexts(
  request: protos.google.cloud.dialogflow.v2.IDeleteAllContextsRequest,
- options?: gax.CallOptions
+ options?: CallOptions
  ): Promise<
  [
  protos.google.protobuf.IEmpty,
@@ -732,7 +740,7 @@ export class ContextsClient {
  >;
  deleteAllContexts(
  request: protos.google.cloud.dialogflow.v2.IDeleteAllContextsRequest,
- options: gax.CallOptions,
+ options: CallOptions,
  callback: Callback<
  protos.google.protobuf.IEmpty,
  | protos.google.cloud.dialogflow.v2.IDeleteAllContextsRequest
@@ -776,7 +784,7 @@ export class ContextsClient {
  deleteAllContexts(
  request: protos.google.cloud.dialogflow.v2.IDeleteAllContextsRequest,
  optionsOrCallback?:
- | gax.CallOptions
+ | CallOptions
  | Callback<
  protos.google.protobuf.IEmpty,
  | protos.google.cloud.dialogflow.v2.IDeleteAllContextsRequest
@@ -799,12 +807,12 @@ export class ContextsClient {
  ]
  > | void {
  request = request || {};
- let options: gax.CallOptions;
+ let options: CallOptions;
  if (typeof optionsOrCallback === 'function' && callback === undefined) {
  callback = optionsOrCallback;
  options = {};
  } else {
- options = optionsOrCallback as gax.CallOptions;
+ options = optionsOrCallback as CallOptions;
  }
  options = options || {};
  options.otherArgs = options.otherArgs || {};
@@ -820,7 +828,7 @@ export class ContextsClient {
 
  listContexts(
  request: protos.google.cloud.dialogflow.v2.IListContextsRequest,
- options?: gax.CallOptions
+ options?: CallOptions
  ): Promise<
  [
  protos.google.cloud.dialogflow.v2.IContext[],
@@ -830,7 +838,7 @@ export class ContextsClient {
  >;
  listContexts(
  request: protos.google.cloud.dialogflow.v2.IListContextsRequest,
- options: gax.CallOptions,
+ options: CallOptions,
  callback: PaginationCallback<
  protos.google.cloud.dialogflow.v2.IListContextsRequest,
  | protos.google.cloud.dialogflow.v2.IListContextsResponse
@@ -882,7 +890,7 @@ export class ContextsClient {
  listContexts(
  request: protos.google.cloud.dialogflow.v2.IListContextsRequest,
  optionsOrCallback?:
- | gax.CallOptions
+ | CallOptions
  | PaginationCallback<
  protos.google.cloud.dialogflow.v2.IListContextsRequest,
  | protos.google.cloud.dialogflow.v2.IListContextsResponse
@@ -905,12 +913,12 @@ export class ContextsClient {
  ]
  > | void {
  request = request || {};
- let options: gax.CallOptions;
+ let options: CallOptions;
  if (typeof optionsOrCallback === 'function' && callback === undefined) {
  callback = optionsOrCallback;
  options = {};
  } else {
- options = optionsOrCallback as gax.CallOptions;
+ options = optionsOrCallback as CallOptions;
  }
  options = options || {};
  options.otherArgs = options.otherArgs || {};
@@ -954,7 +962,7 @@ export class ContextsClient {
  */
  listContextsStream(
  request?: protos.google.cloud.dialogflow.v2.IListContextsRequest,
- options?: gax.CallOptions
+ options?: CallOptions
  ): Transform {
  request = request || {};
  options = options || {};
@@ -1010,7 +1018,7 @@ export class ContextsClient {
  */
  listContextsAsync(
  request?: protos.google.cloud.dialogflow.v2.IListContextsRequest,
- options?: gax.CallOptions
+ options?: CallOptions
  ): AsyncIterable<protos.google.cloud.dialogflow.v2.IContext> {
  request = request || {};
  options = options || {};