Blockchain Based Transaction System with Fungible and Non-Fungible Tokens for a Community-Based Energy Infrastructure

. 2021 May 31;21(11):3822. doi: 10.3390/s21113822

Algorithm 4 Bid on a NFT

1:
functionBidNFT(id string)
2:
$t o k e n \leftarrow R e a d T o k e n (i d)$ ▹ Calling Algorithm 2
3:
if token.NotForSale == true then
4:
return “Token $I D$ not for sale”
5:
end if
6:
$b i d d e r c l i e n t \leftarrow G e t C l i e n t I d e n t i t y () . G e t I D ()$
7:
if $t o k e n . B i d = = “ ”$ then
8:
$t o k e n . B i d = b i d d e r c l i e n t$
9:
else
10:
return “There is already a bid on this token by token.Bid”
11:
end if
12:
$t o k e n J S O N \leftarrow j s o n . M a r s h a l (t o k e n)$
13:
$P u t S t a t e (i d, t o k e n J S O N)$

▹ Saving updated token
14:
end function