Reddit reviews Unlikely Heroes: 37 Inspiring Stories of Courage and Heart from the Animal Kingdom (Unlikely Friendships)

Go/Golang

https://github.com/bryfry/dpc197

I had a bit of fun with this. Implemented:

• ISBN-10 validation
  
• ISBN-10 check digit calculation
  
• ISBN-10 amazon lookup
  
• ISBN-10 neighbors (10) calculation & lookup
  
  Example output:
  
  dpc197 $ source env_example.sh
  
  dpc197 $ go run isbn.go -i 0761174427 -n
  Checking for valid ISBN: 0761174427
  ISBN-10: 0761174427 www.amazon.com/Unlikely-Loves-Heartwarming-Stories-Kingdom/dp/0761174427
  ----- Neighbor ISBNs -----
  0761174400 www.amazon.com/Hero-Dogs-2014-Wall-Calendar/dp/0761174400
  0761174419 www.amazon.com/Unlikely-Heroes-Inspiring-Stories-Courage/dp/0761174419
  0761174427 www.amazon.com/Unlikely-Loves-Heartwarming-Stories-Kingdom/dp/0761174427
  0761174435
  0761174443
  0761174451
  076117446X
  0761174478
  0761174486 www.amazon.com/Moms-Family-2014-Desk-Planner/dp/0761174486
  0761174494 www.amazon.com/Lego-Calendar-2014-Workman-Publishing/dp/0761174494
  ----- ----- ----- ----- -----
  
  dpc197 $ go run isbn.go -i 076117442X -n
  Checking for valid ISBN: 076117442X
  Not Valid ISBN-10: Invalid check digit: expected (7) received (X)
  Looking up expected ISBN-10: 0761174427
  ISBN-10: 0761174427 www.amazon.com/Unlikely-Loves-Heartwarming-Stories-Kingdom/dp/0761174427
  ----- Neighbor ISBNs -----
  0761174400 www.amazon.com/Hero-Dogs-2014-Wall-Calendar/dp/0761174400
  0761174419 www.amazon.com/Unlikely-Heroes-Inspiring-Stories-Courage/dp/0761174419
  0761174427 www.amazon.com/Unlikely-Loves-Heartwarming-Stories-Kingdom/dp/0761174427
  0761174435
  0761174443
  0761174451
  076117446X
  0761174478
  0761174486 www.amazon.com/Moms-Family-2014-Desk-Planner/dp/0761174486
  0761174494 www.amazon.com/Lego-Calendar-2014-Workman-Publishing/dp/0761174494
  

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