Algorithms A6. Smart Contract 6: Contamination Check

Input: product id, batch number, order number, product quantity, addr

1. if addr is valid && addr has adding authentication

2. addProduct_Contamination_Info(product id, batch number, order number, product quantity)

3. x= getProduct_Contamination_Info(product id)

4. if x==1

5. No contamination found in the product

6. stage_sypplychain[]= getProduct_Status(product id)

7. updateProduct_Info(product id, batch number, order number, stage_sypplychain.name,1)

8. end

9. else

10. Product comprises of contamination

11. y=addProduct_Nutrition_Info(product id)

12. stage_sypplychain= getProduct_Status(product id)

13. updateProduct_Info(product id, y, batch number, order number, stage_sypplychain.name,1)

14. Initiate execution of Remove Product smart contract

15. end

16. end

17. else

18. Invalid or authorised address

19. go to step 1 and enter a valid address

20. end