BackendSrv: Use uuid v4 as an identifier instead of Date.now() (#27176)

package.json

@@ -215,6 +215,7 @@
     "@types/react-loadable": "5.5.2",
     "@types/react-virtualized-auto-sizer": "1.0.0",
     "@types/sockjs-client": "^1.1.1",
+    "@types/uuid": "8.3.0",
     "@welldone-software/why-did-you-render": "4.0.6",
     "abortcontroller-polyfill": "1.4.0",
     "angular": "1.6.9",
@@ -286,6 +287,7 @@
     "tether-drop": "https://github.com/torkelo/drop/tarball/master",
     "tinycolor2": "1.4.1",
     "tti-polyfill": "0.2.2",
+    "uuid": "8.3.0",
     "whatwg-fetch": "3.1.0"
   },
   "resolutions": {

public/app/core/services/backend_srv.ts

 import { from, merge, MonoTypeOperatorFunction, Observable, Subject, Subscription, throwError } from 'rxjs';
 import { catchError, filter, map, mergeMap, retryWhen, share, takeUntil, tap, throwIfEmpty } from 'rxjs/operators';
 import { fromFetch } from 'rxjs/fetch';
+import { v4 as uuidv4 } from 'uuid';
 import { BackendSrv as BackendService, BackendSrvRequest, FetchError, FetchResponse } from '@grafana/runtime';
 import { AppEvents } from '@grafana/data';
 
@@ -66,8 +67,7 @@ export class BackendSrv implements BackendService {
   fetch<T>(options: BackendSrvRequest): Observable<FetchResponse<T>> {
     return new Observable(observer => {
       // We need to match an entry added to the queue stream with the entry that is eventually added to the response stream
-      // using Date.now() as the unique identifier
-      const id = Date.now().toString(10);
+      const id = uuidv4();
 
       // Subscription is an object that is returned whenever you subscribe to an Observable.
       // You can also use it as a container of many subscriptions and when it is unsubscribed all subscriptions within are also unsubscribed.

yarn.lock

@@ -6790,6 +6790,11 @@
   resolved "https://registry.yarnpkg.com/@types/unist/-/unist-2.0.3.tgz#9c088679876f374eb5983f150d4787aa6fb32d7e"
   integrity sha512-FvUupuM3rlRsRtCN+fDudtmytGO6iHJuuRKS1Ss0pG5z8oX0diNEw94UEL7hgDbpN94rgaK5R7sWm6RrSkZuAQ==
 
+"@types/uuid@8.3.0":
+  version "8.3.0"
+  resolved "https://registry.yarnpkg.com/@types/uuid/-/uuid-8.3.0.tgz#215c231dff736d5ba92410e6d602050cce7e273f"
+  integrity sha512-eQ9qFW/fhfGJF8WKHGEHZEyVWfZxrT+6CLIJGBcZPfxUh/+BnEj+UCGYMlr9qZuX/2AltsvwrGqp0LhEW8D0zQ==
+
 "@types/webpack-dev-server@*":
   version "3.1.7"
   resolved "https://registry.yarnpkg.com/@types/webpack-dev-server/-/webpack-dev-server-3.1.7.tgz#a3e7a20366e68bc9853c730b56e994634cb78dac"
@@ -26433,6 +26438,11 @@ utils-merge@1.0.1:
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
   integrity sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM=
 
+uuid@8.3.0:
+  version "8.3.0"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-8.3.0.tgz#ab738085ca22dc9a8c92725e459b1d507df5d6ea"
+  integrity sha512-fX6Z5o4m6XsXBdli9g7DtWgAx+osMsRRZFKma1mIUsLCz6vRvv+pz5VNbyu9UEDzpMWulZfvpgb/cmDXVulYFQ==
+
 uuid@^3.0.1, uuid@^3.1.0, uuid@^3.3.2:
   version "3.3.3"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.3.tgz#4568f0216e78760ee1dbf3a4d2cf53e224112866"