How to install JSON-server

I will show you how to run json-server on your computer.
To run the json-server, you must already have NodeJS installed, I showed it in the last video, but I will leave the link in the description:

Code that would not be typed by hand:

{
"users":[
{
"id":1,
"name": "Molecule Man",
"age": 29,
"secretIdentity": "Dan Jukes"
},

{
"id":2,
"name": "Madame Uppercut",
"age": 39,
"secretIdentity": "Jane Wilson"
}
]
}

"scripts": {
}

If you want to take a break, then watch this video, it will be interesting:

Search for information about a person by phone number:
You can find interesting information about your friends and acquaintances.
You can find interesting information about your friends and acquaintances, the program will search by first name, last name, email, social media ID and even password.

A little more about OSINT:

[TaniaMitchell]

I dont understand how localhost can be related to jmeter?