Install Hyperledger Fabric on Ubuntu 18.04.1 – Step by Step
Installation of Hyperledger Fabric on Ubuntu is very straight forward and is a step-by-step process. We can majorly divide this whole process into two major parts: First we need to install all pre-requisites and then we proceed towards installation of Fabric itself.
Installing Prerequisites for Hyperledger Fabric:
- CURL
- GO Programming Language with setup of path variable
- Docker & Docker Compose
- Node.js Runtime & NPM
- PYTHON
sudo apt-get install curlsudo apt-get install golang-goexport GOPATH=$HOME/goexport PATH=$PATH:$GOPATH/binsudo apt-get install nodejssudo apt-get install npmsudo apt-get install pythonsudo apt-get install dockercurl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"sudo apt-get updateapt-cache policy docker-cesudo apt-get install -y docker-cesudo apt-get install docker-composesudo apt-get upgradeTill now the environment is ready to install Hyperledger Fabric, Now we will download fabric samples. To do that run following commands in terminal one by one…
sudo curl -sSL https://goo.gl/6wtTN5 | sudo bash -s 1.1.0sudo chmod 777 -R fabric-samples
Now go into first-network directory which is inside fabric-samples folder and then we will run generate script that will create certificates and keys for the entities on our first blockchain network. This will also create genesis block (first block on blockchain)
cd fabric-samples/first-network
sudo ./byfn.sh generate
Bring your first network up by running following command. byfn stands for “Build Your First Network”
sudo ./byfn.sh up If everything works fine you should see start screen of fabric network. To bring network down following command is used.
sudo ./byfn.sh down
Installing SQL Server Management Studio
Installing SQL Server 2017
Return String as ActionResult in ASP.Net MVC
You can simply just use the ContentResult to return a plain text string:
public ActionResult Temp() {
return Content("Hi there!");
}
Check if jQuery UI is loaded ?
Question: How to check if jQuery UI is loaded on web page ?
First make sure you put any code that calls it in $(document).ready(). At that point, everything should be loaded on the page.
One better way is to check by writing Read the rest of this entry »
Blockchain in Health Insurance Industry
Blockchain is reshaping DNAs of almost all businesses, Health Insurance industry is one of them. No doubt insurance industry is already very mature enough but still stakeholders face day to day issues due to lack of connectivity between computerized systems of Insurance Vendors, Hospitals and other Healthcare Services Providers. Read the rest of this entry »
Drop system-versioned temporal table in SQL Server
To Drop a Temporal Table you first need to turn System_Versioning OFF. Then Delete your required temporal table. Finally you can also choose to delete History table associated with your Temporal Table.
CODE EXAMPLE:
ALTER TABLE [dbo].[TemporalTest] SET ( SYSTEM_VERSIONING = OFF )
GO
DROP TABLE [dbo].[TemporalTest]
GO
DROP TABLE [dbo].[TemporalTestHistory]
GO