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 9 Bid on a FT

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functionBidFT(id string)
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$t o k e n \leftarrow R e a d T o k e n (i d)$ ▹ Calling Algorithm 2
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if $t o k e n . N o t F o r S a l e = = t r u e$ then
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return “Token $I D$ is not for sale”
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end if
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if $t o k e n . A v a i l a b l e A s s e t s < b i d v a l u e$ then
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Return “Available value $t o k e n . A v a i l a b l e A s s e t s$ is less than bid $b i d v a l u e$ ”
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end if
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$b i d d e r c l i e n t \leftarrow G e t C l i e n t I d e n t i t y () . G e t I D ()$
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if $t o k e n . B i d m a p [b i d d e r c l i e n t]! = n i l$ then
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$t o k e n . B i d m a p [b i d d e r c l i e n t] \leftarrow e x i s t i n g v a l + b i d v a l u e$
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else
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$t o k e n . B i d m a p [b i d d e r c l i e n t] = b i d v a l u e$
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end if
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$t o k e n . A v a i l a b l e A s s e t s = t o k e n . A v a i l a b l e A s s e t s - b i d v a l u e$
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$t o k e n J S O N \leftarrow j s o n . M a r s h a l (t o k e n)$
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$P u t S t a t e (i d, t o k e n J S O N)$ ▹ Saving updated token
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end function