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1.3.3 Deploying the Example Thanks to the power of Webtasks16, deploying and using this code is a piece of cake. First clone the repository: git clone git@github.com:auth0-blog/ethereum-series-bitcoin-perpetual-message-example.git Now make sure you have the Webtask command-line tools installed: npm install -g wt-cli If you haven’t done so, initialize your Webtask credentials (this is a one time process): wt init Now deploy the project: cd ethereum-series-bitcoin-perpetual-message-example wt create --name bitcoin-perpetual-message \ --meta 'wt-node-dependencies={"bcryptjs":"2.4.3","bitcore-lib":"0.13.19",\ "bitcore-explorers-bitcore-lib-0.13.19":"1.0.1-3"}' app.js Your project is now ready to test! Use CURL to try it out: curl -X POST \ https://wt-sebastian_peyrott-auth0_com-0.run.webtask.io/bitcoin-perpetual-message/new \ -d '{ "id":"test:test", "testnet":true }' -H "Content-Type: application/json" {"address":"mopYghMw5i7rYiq5pfdrqFt4GvBus8G3no"} # This is your Bitcoin address You now have to add some funds to your new Bitcoin address. If you are on Bitcoin’s testnet, you can simply use a faucet17. Faucets are Bitcoin websites that give free coins to addresses. These are easy to get for the testnet. For the “livenet” you need to buy Bitcoins using a Bitcoin exchange18. Now send a message! curl -X POST \ https://wt-sebastian_peyrott-auth0_com-0.run.webtask.io/bitcoin-perpetual-message/message \ -d '{ "id":"test:test", "fee":667, "message":"test" }' -H "Content-Type: application/json" {"status":"Message sent!",\ "transactionId":"3818b4f03fbbf091d5b52edd0a58ee1f1834967693f5029e5112d36f5fdbf2f3"} Now you can look at the transaction19 using a blockchain explorer and the transaction id. If you go down to the bottom of the page in the link before you will see our message with a prefix WTMSG: test. This will get stored in the blockchain forever. 16 https://webtask.io 17 https://testnet.manu.backend.hamburg/faucet 18 https://en.wikipedia.org/wiki/Digital_currency_exchange 19 https://www.blocktrail.com/tBTC/tx/3818b4f03fbbf091d5b52edd0a58ee1f1834967693f5029e5112d36f5fdbf2f3 24PDF Image | Intro to Ethereum and Smart Contracts
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