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const date = require('date-utils');
var dt = new Date();
var Block = new function(){
this.index = 0;
this.timestamp = dt.clone();
this.data = "data : Genesis Block"
this.previous_hash = "0";
this.hash = crypto.createHash("sha256").update(this.index + this.timestamp + this.data + this.previous_hash).digest("hex");
};
console.log("index : ", Block.index, "timestamp : ", Block.timestamp, "data : ", Block.data, "previous_hash : ", Block.previous_hash, "hash", Block.hash);
const next_block = async () => {
try{
Block.index = Block.index+1;
Block.timestamp = dt.clone();
Block.data = "Hey! I'm block " + Block.index;
Block.previous_hash = Block.hash;
Block.hash = crypto.createHash("sha256").update(Block.index + Block.timestamp + Block.data + Block.previous_hash).digest("hex");
}catch (error) { console.log('Task Failure',error);}
}
var num_of_blocks_to_add = 20;
for(var i=0; i<num_of_blocks_to_add; i++){
next_block();
console.log("index : ", Block.index, "timestamp : ", Block.timestamp, "data : ", Block.data, "previous_hash : ", Block.previous_hash, "hash", Block.hash);
}
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