Installing Parse Server Generic Email Adapter - amazon-elastic-beanstalk

Question

I use parse-server with AWS elastic beanstalk.
There was the mailgun email adapter installed as default, but I want to install the generic email adapter so I can send e-mails with a gmail account. I want to install the plugin below but I do not now how to.
The Parse Server Generic Email Adapter
The command to install is as below:
$ npm install --save parse-server-generic-email-adapter
But I am not very professional in server side. Generally what I do is open terminal from my mac computer and write eb init then make changes in the index and cloud code file and write eb deploy.
I don't know where and how to run the command above to install the email adapter. First I run eb init, then eb labs download and in the location where the sever files are downloaded; I try to run the command above from terminal and I get the messages as below:
usage: install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]
[-o owner] file1 file2
install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]
[-o owner] file1 ... fileN directory
install -d [-v] [-g group] [-m mode] [-o owner] directory ...
Any help would be great.

Answer 1

Ok,
I found how to do it, if you use elastic beanstalk with parse-server, and want to use generic mail adapter;
1) in your package.json file dependencies add:
"parse-server-generic-email-adapter": "0.0.4"
2) in your index.js file - email adapter part, add:
module: 'parse-server-generic-email-adapter',
options: {
service: 'Gmail',
email: 'xxxxxxx#gmail.com',
password: 'xxxxxxx',
}
And deploy your files to your elastic beanstalk server with eb deploy.