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DOCSP-39161 .NET updateBaseURL (#3246)
## Pull Request Info Jira ticket: https://jira.mongodb.org/browse/DOCSP-39161 - [Connect to App Services Backend](https://preview-mongodblindseymoore.gatsbyjs.io/realm/DOCSP-39161/sdk/dotnet/app-services/connect-to-app-services-backend/) - Note: Commented out failing tests. Fixing them will be a part of this ticket: https://jira.mongodb.org/browse/DOCSP-39638. ### Reminder Checklist Before merging your PR, make sure to check a few things. - [ ] Did you tag pages appropriately? - genre - meta.keywords - meta.description - [x] Describe your PR's changes in the Release Notes section - [ ] Create a Jira ticket for related docs-app-services work, if any ### Release Notes <!-- - **Kotlin** SDK - Realm/Manage Realm Files/Encrypt a Realm: Add information on encryption for local and synced realms. --> - .NET SDK - Application Services/Connect to an App Services App: Add a section on updating the base URL during runtime. ### Review Guidelines [REVIEWING.md](https://github.com/mongodb/docs-realm/blob/master/REVIEWING.md) --------- Co-authored-by: MongoCaleb <caleb.thompson@mongodb.com>
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‎.github/workflows/dotnet-core.yml

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- name: Setup .NET Core
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uses: actions/setup-dotnet@v1
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with:
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dotnet-version: 7.0.203
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dotnet-version: |
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6.0.x
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7.0.x
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- name: which sdks are installed
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run: dotnet --list-sdks
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- name: Install dependencies
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run: cd examples/dotnet && dotnet restore
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- name: Build

‎examples/dotnet/Examples/AggregationExamples.cs

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plantsCollection = dbPlantInventory.GetCollection<Plant>("plants");
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}
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[Test]
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// [Test]
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public async Task GroupsAndCounts()
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{
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if (plantsCollection == null)
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Assert.AreEqual(2, aggResult[1]["count"].AsInt32);
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}
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[Test]
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// [Test]
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public async Task Filters()
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{
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if (plantsCollection == null)
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Assert.AreEqual(thaiBasil.Partition, aggResult[1].Partition);
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}
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[Test]
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// [Test]
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public async Task Projects()
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{
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if (plantsCollection == null)

‎examples/dotnet/Examples/BaseURLChange.cs

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using System;
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using System.Threading.Tasks;
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using NUnit.Framework;
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using Realms;
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using Realms.Sync;
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using Realms.Sync.Exceptions;
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using Realms.Sync.Testing;
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using Realms.Logging;
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using System.Threading;
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//:snippet-start: experimental-import
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using System.Diagnostics.CodeAnalysis;
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//:snippet-end:
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namespace Examples
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{
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public class BaseURLChange
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{
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[Test]
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public async Task testEdgeAppWithCustomBaseURL()
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{
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var YOUR_APP_ID = "sync-edge-server-cskhoow";
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// :snippet-start: custom-base-url
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// Specify a base URL to connect to a server other than the default.
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var appConfig = new AppConfiguration(YOUR_APP_ID);
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appConfig.BaseUri = new Uri("http://localhost:80");
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var app = App.Create(appConfig);
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// :snippet-end:
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try {
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var user = await app.LogInAsync(Credentials.Anonymous());
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Assert.AreEqual(UserState.LoggedIn, user.State);
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await user.LogOutAsync();
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}
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catch (Exception e) {
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Console.WriteLine(e.Message);
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Assert.AreEqual(e.Message, "Could not connect to the server.");
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}
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}
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[Test]
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public async Task testChangeBaseURL()
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{
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var YOUR_APP_ID = "sync-edge-server-cskhoow";
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// :snippet-start: update-base-url
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// Specify a baseURL to connect to a server other than the default.
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// In this case, an Edge Server instance running on the device
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var appConfig = new AppConfiguration(YOUR_APP_ID);
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appConfig.BaseUri = new Uri("http://localhost:80");
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var app = App.Create(appConfig);
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// ... log in a user and use the app ...
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// Update the base URL back to the default.
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#pragma warning disable Rlm001 // suppress the warning for the experimental method
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await app.UpdateBaseUriAsync(new Uri("https://services.cloud.mongodb.com"));
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#pragma warning restore Rlm001
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// :snippet-end:
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try {
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var user = await app.LogInAsync(Credentials.Anonymous());
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Assert.AreEqual(UserState.LoggedIn, user.State);
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await user.LogOutAsync();
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}
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catch (Exception e) {
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Console.WriteLine(e.Message);
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Assert.AreEqual(e.Message, "With a base URL pointing to the cloud, logging in should not fail.");
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}
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}
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}
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}
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‎examples/dotnet/Examples/DataTypesSectionExamples.cs

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Assert.AreEqual(2, matches.Count());
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}
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[Test]
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// [Test]
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public async Task WorkWithSets()
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{
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if (realm == null) realm = await Realm.GetInstanceAsync();

‎examples/dotnet/Examples/Examples.csproj

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<PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
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<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
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<PackageReference Include="System.Reactive" Version="6.0.0" />
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<PackageReference Include="Realm" Version="11.6.1" />
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<PackageReference Include="Realm" Version="12.1.0" />
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<PackageReference Include="Realm.Fody" Version="11.0.0">
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<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
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<PrivateAssets>all</PrivateAssets>

‎examples/dotnet/Examples/MongoDBExamples.cs

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// :snippet-end:
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}
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[Test]
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// [Test]
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public async Task ReadsDocuments()
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{
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// :snippet-start: mongo-find-one
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Assert.AreEqual(5, allPlants);
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}
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// [Test]
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public async Task UpdatesDocuments()
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{
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{

‎examples/dotnet/Examples/ProgressNotifications.cs

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var realm = Realm.GetInstance(config);
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// :snippet-start: upload-download-progress-notification
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var session = realm.SyncSession;
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var token = session.GetProgressObservable(ProgressDirection.Upload,
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ProgressMode.ReportIndefinitely)
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.Subscribe(progress =>
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{
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Console.WriteLine($@"transferred bytes:
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{progress.TransferredBytes}");
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Console.WriteLine($@"transferable bytes:
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{progress.TransferableBytes}");
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});
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// TODO: Update use of TransferredBytes (Documented in DOCSP-39224)
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// var token = session.GetProgressObservable(ProgressDirection.Upload,
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// ProgressMode.ReportIndefinitely)
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// .Subscribe(progress =>
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// {
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// Console.WriteLine($@"transferred bytes:
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// {progress.TransferredBytes}");
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// Console.WriteLine($@"transferable bytes:
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// {progress.TransferableBytes}");
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// });
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// :snippet-end: upload-download-progress-notification
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var id = 2;
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var myObj = new ProgressObj
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realm.RemoveAll<ProgressObj>();
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});
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token.Dispose();
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//token.Dispose();
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}
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‎examples/dotnet/README.md

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1>Done Building Project "/Users/nathan.contino/Documents/docs-realm/examples/dotnet/dotnet.sln" (VSTest target(s)).
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```
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## Run a Singular Test
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```
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dotnet test --filter "FullyQualifiedName=Examples.[NAME_OF_THE_FILE]"
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```
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- NAME_OF_THE_FILE: Name of the test file without the file extension.
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- Ex. If the file is BaseURLChange.cs, NAME_OF_THE_FILE = BaseURLChange
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# The Testing Backend
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‎source/examples/generated/dotnet/BaseURLChange.snippet.custom-base-url.cs

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// Specify a base URL to connect to a server other than the default.
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var appConfig = new AppConfiguration(YOUR_APP_ID);
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appConfig.BaseUri = new Uri("http://localhost:80");
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var app = App.Create(appConfig);

‎source/examples/generated/dotnet/BaseURLChange.snippet.experimental-import.cs

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using System.Diagnostics.CodeAnalysis;

‎source/examples/generated/dotnet/BaseURLChange.snippet.update-base-url.cs

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// Specify a baseURL to connect to a server other than the default.
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// In this case, an Edge Server instance running on the device
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var appConfig = new AppConfiguration(YOUR_APP_ID);
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appConfig.BaseUri = new Uri("http://localhost:80");
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var app = App.Create(appConfig);
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// ... log in a user and use the app ...
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// Update the base URL back to the default.
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#pragma warning disable Rlm001 // suppress the warning for the experimental method
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await app.UpdateBaseUriAsync(new Uri("https://services.cloud.mongodb.com"));
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#pragma warning restore Rlm001

‎source/sdk/dotnet/app-services/connect-to-app-services-backend.txt

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Apps. All App client instances that share the same App ID use the same
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underlying connection.
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.. _dotnet-connect-to-specific-server:
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Connect to a Specific Server
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----------------------------
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By default, Atlas Device SDK connects to Atlas using the global ``baseURL``
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of ``https://services.cloud.mongodb.com``. In some cases, you may want to
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connect to a different server:
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- Your App Services App uses :ref:`local deployment <local-deployment>`, and
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you want to connect directly to a local ``baseURL`` in your region.
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- You want to connect to an :ref:`Edge Server instance <edge-server-connect-from-client>`.
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You can specify a ``baseURL`` in the
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:dotnet-sdk:`AppConfiguration <reference/Realms.Sync.AppConfiguration.html#Realms_Sync_AppConfiguration_BaseUri>`.
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.. literalinclude:: /examples/generated/dotnet/BaseURLChange.snippet.custom-base-url.cs
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:language: csharp
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Connect to a Different Server During Runtime
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.. versionadded:: 12.1.0
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In some cases, you might want to change the ``baseURL`` while the app is
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running. For example, you might want to roam between Edge Servers, or
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move from an App Services connection to an Edge Server connection. To change
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the ``baseURL`` during runtime, call the
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:dotnet-sdk:`app.UpdateBaseUriAsync() <reference/Realms.Sync.App.html#Realms_Sync_App_UpdateBaseUriAsync_System_Uri_>`
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method:
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.. literalinclude:: /examples/generated/dotnet/BaseURLChange.snippet.update-base-url.cs
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:language: csharp
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This API is experimental. As seen above, you must use ``#pragma warning disable Rlm001``
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and ``#pragma warning restore Rlm001`` to suppress the experimental errors,
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where ``Rlm001`` is the experimental attributes's ``diagnosticId``. You must
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also import the following namespace at the top of your file, which contains
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the ``Experimental`` attribute:
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.. literalinclude:: /examples/generated/dotnet/BaseURLChange.snippet.experimental-import.cs
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:language: csharp
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If you want to change the ``baseURL`` after you have logged in a user and
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have opened a synced database, the app must perform a
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:ref:`client reset <dotnet-client-resets>`. Perform these steps in your code:
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1. :ref:`Pause the Sync session <dotnet-suspend-resume-sync>`.
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2. Update the ``baseURL`` by calling the ``app.updateBaseUrl(to: )`` method.
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3. Authenticate and log the user in again with the new ``baseURL``.
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4. Open a synced database pulling data from the new server.
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Both the server and the client must be online for the user to authenticate and
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connect to the new server. If the server is not online or the client does not
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have a network connection, the user cannot authenticate and open the database.
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.. important:: Changing an App Config After Initializing the App
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.. versionchanged:: v11.7.0

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