Blockchain Technology (I): Getting Started with Truffle Development

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Ethereum is the best programming platform in the field of blockchain development, and Truffle is the most popular development framework for Ethereum. This is why we introduce Truffle in our first blockchain technology article. Practice is the most important thing. This article does not explain the principles, but only builds the environment and runs the first blockchain program (Dapp).

Install Truffle
$ npm install -g truffle

Dependencies
NodeJS
Visit https://nodejs.org official website to download and install

System: Windows, Linux or Mac OS X. Mac OS X is recommended. Windows is not recommended because you may encounter various problems and give up.

You need to install the Ethereum client to support the JSON RPC API call development environment. It is recommended to use EthereumJS TestRPC: https://github.com/ethereumjs/testrpc

Installation command:
$ npm install -g ethereumjs-testrpc

Create your first project
$ mkdir zhaoxi
$ cd zhaoxi
$ truffle init
By default, a MetaCoin demo will be generated. You can learn the architecture of Truffle from this demo. The project directory structure is as shown in the figure:

The directory of all project files is as follows:

Compile the project
$ truffle compile

Deploy the project <br/>Start TestRPC before deployment
$ testrpc

deploy
$ truffle deploy

Start the service
$ truffle serve

After starting the service, you can access the project in the browser:
http://localhost:8080/ , the web page interface is as follows:

Well, the first blockchain program is running. You can continue to practice and learn in depth. If you have any questions, please contact me.