poco | powerful cross-platform C++ libraries for building network | JSON Processing library

It seems like the IAppSettings implementation was not ready from IoC in the constructor.

Before I go into details, I've read similar problems:

• ServiceStack doesn't auto-wire and register AppSettings
• Instantiation of POCO objects with ServiceStack's IAppSettings is not working

Both were answered by @mythz that he was not able to reproduce it.

"ServiceStack made AppSettings a first-class property, which defaults to looking at .NET's App/Web.config's.": https://docs.servicestack.net/appsettings#first-class-appsettings

And there is default IoC registration already in Funq to give you AppSettings when you ask for IAppSettings:

All my codes are in the repo: https://github.com/davidliang2008/MvcWithServiceStack

The demo app is just an ASP.NET MVC app (.NET 4.8) that built using the template, the simplest you can get, with ServiceStack (5.12.0) installed:

My AppConfig.json:

I use RiotWatcher to access the riot API with python. Since I do a lot of queries with a development key, I try to watch out for 429 errors indicating an overrun of the allowed query rate.

In doing some testing, it seems that RiotWatcher includes an automatic RetryAfter, which is consistent with the documentation. If the limit is exceeded, it pauses and restarts as soon as a query is available.

I tried the following example given in the documentation, but it does not work as I imagined.

I'm playing with Kafka engine on ClickHouse cluster. At the moment ClickHouse 22.1 cluster and Kafka are run in Docker. Here are configurations: https://github.com/apanasevich/clickhouse-etl-cluster

Here are DDL for Kafka integration:

Our application makes use of serialized snapshots of state which is just a serialized version of the class at a point in time.

We have a version number on the class which we increment each time the class is modified which we use to indicate that the previous snapshots are invalid and to ignore them.

Occasionally someone forgets to increment the version and we get errors.

I'd like to generate a hash for the structure of the class and use that to store snapshots, so if it ever changes then the previous snapshots would automatically invalidated.

I've though about using Roslyn to load a representation of the class and call GetHashCode on that but can't work out how to load an existing class into Roslyn.

Also I've looked into Visual Studio generating hashes at build time: https://docs.microsoft.com/en-us/archive/msdn-magazine/2017/march/visual-studio-hashing-source-code-files-with-visual-studio-to-assure-file-integrity but this seems like overkill.

So how do I generate a hash of an existing C# class structure (not an instance of a class)?

Update:

This is a POCO with no methods. Changes that invalidate snapshot include adding, removing or renaming properties.

I'm trying to authenticate to OpenStreetMap via OAuth2 using AppAuth. Via Custom Tab I can retrieve the authorization code but the redirect URI does not open my app but gives an Address Not Found error in the Custom Tab. As you can see as I was experimenting around to solve this issue I used app.example.com as host name, although the package name is com.example.app, but even if I do use the package name as host name in the redirect URI (and change this in the manifest, gradle, osm etc.), it still does not work but results in an Invalid Redirect URI error. So I would assume something with the redirect URI isn't quite right, but I cannot figure out what it is.

Also I cannot use a custom scheme, as OSM only accepts https redirect URIs.

MainActivity.java:

I use the command to install Poco.

I came across this error when modifying a DB first project (using fluent migrator) and scaffolding the EF context to generate models. I have reproduced it by making a code-first simplification. This means that I can't accept answers that suggest modifying the annotations or fluent configuration, because this will be deleted and recreated on the next migration and scaffold.

The simplified idea is that a device has:

• many attributes
• many histories representing changes to the device over time
  • each history entry has an optional location

IOW you can move a device around to locations (or no location) and keep track of that over time.

The code-first model I came up with to simulate this is as follows:

I'm trying to get this simple test to create a nested thread inside another thread, but it keeps failing. Tried removing this nested function and the code works fine on its own.

Code example/test: