How to run ethereumjs using Node JS

Question

Hi everyone, I am trying to work with ethereumjs and problem is that I just can't run it by typing 'testrpc' am getting the msg: 

testrpc' is not recognized as an internal or external command, operable program or batch file.

Any idea why? thank u  and this is my log: :\Users\gabriel\Documents\Visual Studio 2015\Projects\assignment_2>npm install ethereumjs-testrpc

fsevents@1.1.3 install C:\Users\gabriel\Documents\Visual Studio 2015\Projects\assignment_2\node_modules\fsevents
> node install
> uglifyjs-webpack-plugin@0.4.6 postinstall C:\Users\gabriel\Documents\Visual Studio 2015\Projects\assignment_2\node_modules\uglifyjs-webpack-plugin
> node lib/post_install.js
npm WARN saveError ENOENT: no such file or directory, open 'C:\Users\gabriel\Documents\Visual Studio 2015\Projects\assignment_2\package.json'
npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN enoent ENOENT: no such file or directory, open 'C:\Users\gabriel\Documents\Visual Studio 2015\Projects\assignment_2\package.json'
npm WARN assignment_2 No description
npm WARN assignment_2 No repository field.
npm WARN assignment_2 No README data
npm WARN assignment_2 No license field.

+ ethereumjs-testrpc@6.0.1
added 368 packages in 31.206s

C:\Users\gabriel\Documents\Visual Studio 2015\Projects\assignment_2>npm install
npm WARN saveError ENOENT: no such file or directory, open 'C:\Users\gabriel\Documents\Visual Studio 2015\Projects\assignment_2\package.json'
npm WARN enoent ENOENT: no such file or directory, open 'C:\Users\gabriel\Documents\Visual Studio 2015\Projects\assignment_2\package.json'
npm WARN assignment_2 No description
npm WARN assignment_2 No repository field.
npm WARN assignment_2 No README data
npm WARN assignment_2 No license field.
up to date in 2.663s

C:\Users\gabriel\Documents\Visual Studio 2015\Projects\assignment_2>testrpc
'testrpc' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\gabriel\Documents\Visual Studio 2015\Projects\assignment_2>tgestrpc -p
'tgestrpc' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\gabriel\Documents\Visual Studio 2015\Projects\assignment_2>testrpc
'testrpc' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\gabriel\Documents\Visual Studio 2015\Projects\assignment_2>$ npm install truffle
'$' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\gabriel\Documents\Visual Studio 2015\Projects\assignment_2> npm install truffle
npm WARN saveError ENOENT: no such file or directory, open 'C:\Users\gabriel\Documents\Visual Studio 2015\Projects\assignment_2\package.json'
npm WARN enoent ENOENT: no such file or directory, open 'C:\Users\gabriel\Documents\Visual Studio 2015\Projects\assignment_2\package.json'
npm WARN assignment_2 No description
npm WARN assignment_2 No repository field.
npm WARN assignment_2 No README data
npm WARN assignment_2 No license field.

+ truffle@4.0.1
added 55 packages in 9.487

Answer 1

You need to install testrpc globally on your system...

sudo npm install -g testrpc

I think you have to install testrpc globally to run it like this. Try running 

runas /noprofile /user:Administrator cmd 

and then:

npm install -g testrpc

 Or you can add the directory to your PATH:

1. Right click
2. My Computer' and go to Properties > Advanced System Settings > Environment Variables.
3. Double click on PATH under the 'User variables for Username' section, and add:
   C:\Users\username\AppData\Roaming\testrpc
4. Make sure to replace 'username' with your username.
5. Restart your console window or IDE and you should get a response from the bower command.

Hope it helps

Answer 2

You can use Ethereum on nodejs and this link would be helpful for you: https://medium.com/@codetractio/try-out-ethereum-using-only-nodejs-and-npm-eabaaaf97c80