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Write and publish your own blockchain in less than 200 lines of Go

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Code your own blockchain in less than 200 lines of Go!

Tutorial

Read our blog post first to see a walkthrough of the code.

Check out our follow-up tutorials:

Deployment steps:

  • git clone https://github.com/mycoralhealth/blockchain-tutorial.git
  • navigate to this directory and rename the example file mv example.env .env
  • go run main.go
  • open a web browser and visit http://localhost:8080/
  • to write new blocks, send a POST request (I like to use Postman) to http://localhost:8080/ with a JSON payload with BPM as the key and an integer as the value. For example:
{"BPM":50}
  • Send as many requests as you like and refresh your browser to see your blocks grow! Use your actual heart rate (Beats Per Minute) to track it over time.

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