Skip to main content

Reading a connectionstring from secrets.json

As we are still using SQL accounts to connect to our databases locally, I wanted to avoid accidently checking in the SQL account information. So instead of storing my connectionstring directly in the appsettings.json file I wanted to use the secrets.json file instead. Let us find out how to achieve this...

When storing your connectionstring inside your appsettings.json you can use the GetConnectionString() method to fetch a connectionstring:

The same technique also works when using the built-in secret manager tool and the corresponding secrets.json. By default user secrets are loaded when your environmentname is set to Development. You can explicitly enable this by adding the following code:

User Secrets are stored in a separate secrets.json. You can edit the secrets using the Secret Manager tool (dotnet user-secrets) or directly in Visual Studio by right clicking on the web project and choosing ‘Manage User Secrets’:

Remark: You can find the secrets.json file here at %APPDATA%\Microsoft\UserSecrets\<user_secrets_id>\secrets.json

The information in the appsettings.json and secrets.json will be merged. The connectionstring should be added to the secrets.json file using the following format(similar to the appsettings.json):

Popular posts from this blog

Podman– Command execution failed with exit code 125

After updating WSL on one of the developer machines, Podman failed to work. When we took a look through Podman Desktop, we noticed that Podman had stopped running and returned the following error message: Error: Command execution failed with exit code 125 Here are the steps we tried to fix the issue: We started by running podman info to get some extra details on what could be wrong: >podman info OS: windows/amd64 provider: wsl version: 5.3.1 Cannot connect to Podman. Please verify your connection to the Linux system using `podman system connection list`, or try `podman machine init` and `podman machine start` to manage a new Linux VM Error: unable to connect to Podman socket: failed to connect: dial tcp 127.0.0.1:2655: connectex: No connection could be made because the target machine actively refused it. That makes sense as the podman VM was not running. Let’s check the VM: >podman machine list NAME         ...

Cache stampede: when our cache turned against us

While investigating some performance issues, we ran into an ASP.NET Core API that cached a fairly expensive aggregation query for 60 seconds. Under normal load, that was fine: one request rebuilds the cache, everyone else reads from it. Under peak load, dozens of requests would arrive in that same expiry window, all see a cache miss, and all fire the same expensive query in parallel. The database didn't like that. That was the moment when our caching layer stopped helping and started hurting. A burst of requests comes in at the same time, all miss the cache, and all go hammer the database or the downstream API at once. That's a cache stampede . The cache was supposed to protect our backend, and for a few hundred milliseconds it did the opposite. Why this happens IMemoryCache.GetOrCreate (and its async sibling) looks like it protects you, but it doesn't add any locking on its own. Look at the naive version: public async Task<Report> GetReportAsync(string key) ...

Azure DevOps/ GitHub emoji

I’m really bad at remembering emoji’s. So here is cheat sheet with all emoji’s that can be used in tools that support the github emoji markdown markup: All credits go to rcaviers who created this list.