In development.
just type this to install the module
$ npm install r4nasa-api
this module has dependencies so it works only if fs and https are installed also this module has a function that retuns the data you requested in a json file called requested_data.json
$ npm install https
$ npm install fs
at top add the two constants for r4nasa and fs
const r4nasa = require('r4nasa-api')
const fs = require('fs');
then add the line
const R4nasa = new r4nasa({token:'YOUR_TOKEN'});
replace YOUR_TOKEN with your registration token where you can found it Here
to get thousands random Mars images by random rovers you have to request data with a function that returns 1 image and some data type
R4nasa.RequestMars_sol(rover, sol)
in the two parameters you have to add the rover name(Curiosity is the rover with more data) and a random sol
this will create and write data in a json filed called requested_data.json
{
"img":"http://mars.jpl.nasa.gov/msl-raw-images/proj/msl/redops/ods/surface/sol/01344/opgs/edr/fcam/FRB_516810721EDR_F0541238FHAZ00304M_.JPG",
"sol":1344,
"rover":"Curiosity",
"date":"2016-05-17"
}
and then in your script you have to parse the data with fs module that you have installed
//don't change requested_data.json path!
let rawdata = fs.readFileSync('./requested_data.json');
var json = JSON.parse(rawdata)
//here are you going to get the img value in the json file
console.log(json.img)
the final script will looks like
const r4nasa = require('r4nasa-api')
const fs = require('fs');
const R4nasa = new r4nasa({token:'YOUR_TOKEN'});
//this is the parse function that will be parse the data in the json file
function parse()
{
let rawdata = fs.readFileSync('./requested_data.json');
var json = JSON.parse(rawdata)
//here are you going to get the img value in the json file
console.log(json.img)
}
//this is a random number for a random sol
var randomSOL = Math.floor(Math.random() * 2394);
// writing and creating the file with data
R4nasa.RequestMars_sol("Curiosity", randomSOL)
// generating data requires time, and if the parse function is called before RequestMars_sol finish this will return an error
setTimeout(parse, 3800);
the module is still in development so it doesn't have all the functions