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When i was building my project for a docker container i bump into this problem "Unable to start Kestrel. System.AggregateException: One or more errors occurred. (Unable to load DLL 'libuv': The specified module or one of its dependencies could not be found." I just use install the nuget package and it works Install-Package Libuv -Version 1.10.0

A typical unit test for Angular looks like this :- We need to understand a) A component or fixture represent our angular component which might include a single or more markups. b) DebugElement are basically specific html markup like span or div that we would like to find after it is our component rendered. So, in our test it is important to know what we've already initialized our component using code below :- Next we get an instance of our component and check if it contains certain markups as shown below :-

Oh my, surprising enuff, I had this happened to me, write. Unable to find module @angular-devkit/core. npm install @angular-devkit/core --save-dev

Facebook Bot Concept  What we are doing here is to serve up an nodejs app which handles messages that users or customer post to facebook. This gives us an opportunity to add various service like Luis or Wit.Ai to handle NLP. Surprising Wit.Ai is very similiar to Luis. Getting started with sample code  Downloading sample app with Facebook messenger test drive. https://developers.facebook.com/docs/messenger-platform/getting-started/test-drive/?testdrive_messengerbot=true Follow the instruction here. Running it  Running using 2 different processes. Process #1. Kicks it off using "node app.js" - default port is 5000 but you can always  change it. Process #2 (tunneling to Facebook) Runs the following command -  lt --port 5060 Testing Open your messenger and start sending messages to it. You can see your local (command prompt) node app displaying text messages from the user. https://developers.facebook.com/apps/

You can install the NLog plugin to logging to a Fluentd node.  Fluentd is a unified logging layer and if you're wondering if we're talking about the same logger, check it out here . There is a difference between fluentd and fluentbit. Fluentd is targeted for servers with larger processing capacity while fluentbt is for IOT devices with small memory footprint. Getting your project ready with the following nuget Install-Package NLog.Targets.Fluentd -Version 1.0.4 Install-Package NLog -Version 2.1.0 Install-Package System.Configuration.ConfigurationManager -Version 4.4.1 Setting up Fluentd Docker This is the docker command to setup Fluentd as an endpoint to gather all your log. docker run -d -p 24224:24224 -p 24224:24224/udp -v /data:/fluentd/log fluent/fluentd This will start your docker container with fluentd. Then we will use the following code to write to docker container :- You can see your log as shown below when you connect to your docker co...

We so used to building REST or micro service. Now it makes sense to build better REST based services. Better documentation with  Swashbuckle.AspNetCore It is always good to have SwaggerUI in your system as it gives you auto-generated, nicely layout way of documenting and interacting with your REST service. Install-Package Swashbuckle.AspNetCore Next, configure your startup.cs Remember to browse to your swagger UI by :- http://localhost:5050/swagger/

Here is the code to download MNIST dataset. Just run python download_mnist.py Next you would like to try out logistic regression with this dataset.

Surprisingly deploying to a cluster is pretty straight forward. To run or deploy your application to cluster, issue the following command :- kubectl run --kubeconfig connect_config.txt connectcd --image=kepung/dotnetapp-prod --port=5050 The only different is --kubeconfig - which is a file storing your cluster info including access. Next, to ensure, we expose our port with a service, using command below :- kubectl --kubeconfig connect_config.txt expose deployment/connectcd --type="LoadBalancer" --port=5050 --name=connectcd-http That's pretty much it. To get the service url for your pod, you can use the following command :- kubectl --kubeconfig connect_config.txt get service connectcd-http -o yaml You will see the following output and it contains the DNS of the newly deployed service. Please wait for a few seconds for AWS DNS to have it registered in there.

When working with Microsoft Bot, you there are a few gotchas when working with adaptive cards. Nuget package You need to install "Microsoft.AdaptiveCards" nuget package SubmitAction  If you have data in a property called  "DataJson", it needs to be in Json format, otherwise your layout will not be rendered.

https://docs.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-7#discards

The code sample below gives

Here is a good example of how you can create and evolve your simple fast forward network for a simple classification problem

If outcome is in a binary form, e.g true or false, or 1 or 0 then use sigmoid Otherwise use softmax where outcome can be more than 2 possible states.

CNTK is suppose to be a large scale corporate development of ML. You can call it via C#. Similar to tensorflow, it is designed as a graph based ML development framework. A couple of interesting things i find out Installation CNTK  To install CNTK on Windows. If you're installing for different platform, you can refer to documentation here . pip install https://cntk.ai/PythonWheel/CPU-Only/cntk-2.4-cp35-cp35m-win_amd64.whl Get started  The best place to get started is following instruction here . Using CNTK with C# Yeap, you can use CNTK with C#. Light RNN https://github.com/Microsoft/CNTK/tree/master/Examples/Text/LightRNN Tutorials https://cntk.ai/pythondocs/CNTK_200_GuidedTour.html?highlight=cross_entropy_with_softmax Docker image  You can find the docker image here. docker pull microsoft/cntk

Microsoft's guidelines for building REST based services can be found here . 

When you change individual rows in primeng datatable, datatable will not be refreshed automatically,  for example this .rows[i][ 'gender' ] = 'Female' In order to refresh table, you need to do a manual, shallow copy using code below :- this .rows[i][ 'gender' ] = 'Female' this .rows = [...this.rows]; // refresh manually here ..

Here are some common functions to discover properties and values of an object using properties. a) Object.keys - Get all the keys of an object b) Object.values c) Object.getOwnPropertyDescriptors The following code snippet demonstrate how to work with these methods.

There are 3 different types of bindings in Angular a) Source to View bindings The following syntax are valid  {{expression}} [target]="expression" bind-target="expression" b) View to source binginds The following syntax are valid  (target)="statement" on-target="statement" c) Two way bindings The following syntax are valid  [(target)]="expression" bindon-target="expression"

In order to push to Amazon's ECS registry you need to setup and configure your account. First of all you need to setup aws and docker. Goto AWS console to create a repository and follow the instructions. If you needed a sample project, please clone one here . To summarize, the steps, do the following. (i assume you created a repository called "jeremy". Get a docker login command (setup your credential) by running the following command :- aws ecr get-login --no-include-email --region ap-southeast-2 Then build your image docker build -t dotnetapp-prod . docker tag dotnetapp-prod 312611170176.dkr.ecr.ap-southeast-2.amazonaws.com/jeremy:dotnetapp-prod And push your image to Amazon docker push 312611170176.dkr.ecr.ap-southeast-2.amazonaws.com/jeremy:dotnetapp-prod To browse your ECS repository, please go here . Possible error message :- Can't push image to Amazon ECR - fails with “no basic auth credentials” - ...

I had this situation whereby kubernetes pods keep on restarting even if I tried deleting it. As soon as it gets deleted, two new instance get created again. So i tried looking for what causes it. For my case, it is the replicationcontroller. kubectl get replicationcontroller kubectl delete replicationcontroller "connectcd" And this solves it! :)