06
OCT
Microsoft MVP for Azure
All Posts
22
AUG
How to Get Access Token for Azure REST APIs in .NET
I am recently working on a project that requires front-end to call Azure REST APIs. Microsoft document describes how to get Access Token in postman via Jon Gallant's blog post. However, placing secret keys in front-end is very dangerous. In my project, I must get the Access Token from server side in .NET. Let's see how to do it. …
06
AUG
Log User Identity Information to Azure Application Insights
Azure Application Insights is a very powerful APM tool for monitoring web applications. However, not all features that we sometimes require come out of the box. I now have an ASP.NET Core Web API application that uses JWT authentication. I would like to log user's identity when there is a failed request. Let's see how to do it. …
06
JUL
Upload File with Progress from Browser to Azure Blob Storage
I am currently developing an internal OA system for a small company. One of the business requirements is for users to upload attachments when creating a ticket. Azure Blob Storage is an ideal solution for this scenario. However, since the attachment sizes range from a few kilobytes to several hundred megabytes, it is crucial to display a progress bar during file uploads. Let's explore how we can easily implement this using Azure.
19
JUN
Identify Users from Different Countries and Regions for Websites on Azure
For websites that need to display different content for users in different countries and regions, we usually identify the user's location based on the IP address. It means we have to write our own code, purchasing and maintaining an IP database, or using a third-party IP data service, it will take huge efforts. How to quickly do it without purchasing an IP database and write a lot of code? …
17
JUN
Hosting Static HTML Website with Azure Static Web Apps
When I choose free static website hosting plans, I would use GitHub pages in the past. But now, since the GA of Azure Static Web Apps (SWA), I now have another free of charge option. I've tried to host a few pure HTML/JS website as well as .NET Blazor WASM applications with Azure Static Web Apps. In this post, I'll share how to create a static website by SWA. …
10
MAY
ASP.NET Core Unit Test: How to Mock HttpClient.GetStringAsync()
In ASP.NET Core unit tests, if you want to mock HttpClient.GetStringAsync(), here's the trick. Problem Given the following code var html = await _httpClient.GetStringAsync(sourceUrl); When I tried to mock HttpClient.GetStringAsync() like this var httpClientMock = new Mock<HttpClient>(); httpClientMock .Setup(p => p.GetStringAsync(It.IsAny<string>())) .Returns(Task.FromResult("...")); Moq …
10
MAY
How to Prevent Access to App Service Url Behind Azure Front Door
In my previous posts, I have introduced usage of Azure Front Door. However, when we finish setting up the front door and bind our domain to the front door, users can still access the App Service URL. In this post, I'll introduce how to prevent access to our App Service when using Azure Front Door. Problem For example, my blog is binding https://edi.wang to my front door, I have 2 App Services …
29
APR
ASP.NET Core Unit Test: How to Mock HttpContext.Features.Get()
In ASP.NET Core unit tests, if you want to mock HttpContext.Features.Get<SomeType>(), here's the trick. Problem I have my Error page code that will get exception detail infomation, to do that, I use HttpContext.Features.Get<IExceptionHandlerPathFeature>(). public void OnGet() { var requestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier; var exceptionFeature = HttpContext.Features. …
25
APR