Simple API to get the blocks by height and create new blocks
Express.js
git clone https://github.com/diemesleno/udacity_bc_p3
cd udacity_bc_p3
npm install
node index.js
Endpoint GET http://localhost:8000
Get all endpoints information
Example of data received
[
{
"endpoint": "http://127.0.0.1:8000",
"method": "GET",
"message": "The information about all endpoints"
},
{
"endpoint": "http://127.0.0.1/block/{height}",
"method": "GET",
"message": "Get the block by height"
},
{
"endpoint": "http://127.0.0.1/block",
"method": "POST",
"message": "Create a new block"
},
{
"endpoint": "http://127.0.0.1/chain",
"method": "GET",
"message": "Get all the blocks stored in the blockchain"
}
]
Endpoint GET http://localhost:8000/block/{height}
Get the block by height
Example of data received
{
"hash": "01996c80769db3638fd9579f513ebc7237c660230d3265b4be62a024b194427a",
"height": 12,
"body": "There's no place like home",
"time": "1535154649",
"previousBlockHash": "ff58ae10321c2fcc94cecd3d11ed358e56913463a4c0256fd0eacce01f21783a"
}
Endpoint POST http://localhost:8000/block
Create a new block
Example of data to send
{
"body": "There's no place like home"
}
Example of data received
{
"hash": "9cd500d09f6cf422a28d7b6e71e31d835b2106c12775bed74c4cc3f3ca0c67db",
"height": 20,
"body": "There's no place like home",
"time": "1535157195",
"previousBlockHash": "0535c479ad0a256ef0bdab18e264c28f777568595e3652fe6a266ef59bb4b0bd"
}
Endpoint GET http://localhost:8000/chain
Get all blocks stores in the blockchain
Example of data received
{
"success": true,
"data": [
{
"hash": "d933305a9bc0b8f0702708a7150db7e37edf4120e4c717d4ca19ebdf2bac1df3",
"height": 0,
"body": "Genesis block",
"time": "1533476163",
"previousBlockHash": ""
},
{
"hash": "c8b4226e1d170a898a58cb68fde9a439bb6c09180c9276450e27f96686173195",
"height": 1,
"body": "Test data 10",
"time": "1533476163",
"previousBlockHash": "d933305a9bc0b8f0702708a7150db7e37edf4120e4c717d4ca19ebdf2bac1df3"
},
{
"hash": "c715877288bcf0d80141c69b90124f6cdae6f5a4b5b8c41008d622df1844d7ea",
"height": 10,
"body": "Test data 1",
"time": "1533476164",
"previousBlockHash": "eae008bff794421c783c93b6eb71fb186d18326e2a5a21f395aad2bf55fac837"
},
{
"hash": "ff58ae10321c2fcc94cecd3d11ed358e56913463a4c0256fd0eacce01f21783a",
"height": 11,
"body": "The life is good",
"time": "1535154569",
"previousBlockHash": "c715877288bcf0d80141c69b90124f6cdae6f5a4b5b8c41008d622df1844d7ea"
},
{
"hash": "01996c80769db3638fd9579f513ebc7237c660230d3265b4be62a024b194427a",
"height": 12,
"body": "There's no place like home",
"time": "1535154649",
"previousBlockHash": "ff58ae10321c2fcc94cecd3d11ed358e56913463a4c0256fd0eacce01f21783a"
},
{
"hash": "fed27280336fc3c30e7d02c3f2c7fd7f1a27b911eee3fdc251ea491e8f976820",
"height": 13,
"body": "Ray is sleeping",
"time": "1535155041",
"previousBlockHash": "01996c80769db3638fd9579f513ebc7237c660230d3265b4be62a024b194427a"
},
{
"hash": "1d83f74862d54fe83ff20f705c2f7b02068473bf961bab2fe4a91875f8439f58",
"height": 14,
"body": "Ray is sleeping",
"time": "1535155150",
"previousBlockHash": "fed27280336fc3c30e7d02c3f2c7fd7f1a27b911eee3fdc251ea491e8f976820"
},
{
"hash": "3f46b0486951c14f201d546360e3196b4482df396584c5caad2cb361f04f6579",
"height": 15,
"body": "Ray is sleeping",
"time": "1535155192",
"previousBlockHash": "1d83f74862d54fe83ff20f705c2f7b02068473bf961bab2fe4a91875f8439f58"
},
{
"hash": "17535da5daf708d12a0e05fbd4ba65c926543351e17b9802ef3b19ee5da22d6c",
"height": 16,
"body": "Ray is sleeping",
"time": "1535155268",
"previousBlockHash": "3f46b0486951c14f201d546360e3196b4482df396584c5caad2cb361f04f6579"
},
{
"hash": "acf173364a4b2ec8855928f8e2f3e19948a5e110b924e78558e2cd83a24655ad",
"height": 17,
"body": "It's now or never",
"time": "1535155373",
"previousBlockHash": "17535da5daf708d12a0e05fbd4ba65c926543351e17b9802ef3b19ee5da22d6c"
},
{
"hash": "ffcf7fc73370eb47b2b0eb8925fc0043a66e2e89e144445bc0726a21fff60089",
"height": 18,
"body": "It's now or never",
"time": "1535155468",
"previousBlockHash": "acf173364a4b2ec8855928f8e2f3e19948a5e110b924e78558e2cd83a24655ad"
},
{
"hash": "0535c479ad0a256ef0bdab18e264c28f777568595e3652fe6a266ef59bb4b0bd",
"height": 19,
"body": "It's now or never",
"time": "1535156288",
"previousBlockHash": "ffcf7fc73370eb47b2b0eb8925fc0043a66e2e89e144445bc0726a21fff60089"
},
{
"hash": "46e1702652ab7c4938b42db542c33e5cc1a1c2ecd44401bb81c2b76bfb9ba0ca",
"height": 2,
"body": "Test data 9",
"time": "1533476164",
"previousBlockHash": "c8b4226e1d170a898a58cb68fde9a439bb6c09180c9276450e27f96686173195"
},
{
"hash": "9cd500d09f6cf422a28d7b6e71e31d835b2106c12775bed74c4cc3f3ca0c67db",
"height": 20,
"body": "It's now or never",
"time": "1535157195",
"previousBlockHash": "0535c479ad0a256ef0bdab18e264c28f777568595e3652fe6a266ef59bb4b0bd"
},
{
"hash": "04ad33ad32e53ad8299bcf1e9ab448c6ecc4673a567d0f1cb5b3205a0931024a",
"height": 3,
"body": "Test data 8",
"time": "1533476164",
"previousBlockHash": "46e1702652ab7c4938b42db542c33e5cc1a1c2ecd44401bb81c2b76bfb9ba0ca"
},
{
"hash": "f067b84c4f465368e01f9707751958ff5cdb80a2c7a57ec500b6b394f6fbae7c",
"height": 4,
"body": "Test data 7",
"time": "1533476164",
"previousBlockHash": "04ad33ad32e53ad8299bcf1e9ab448c6ecc4673a567d0f1cb5b3205a0931024a"
},
{
"hash": "c486fc72282de8138657698320f235f4d7efeb7e76e79ba21300ec83a49dbc92",
"height": 5,
"body": "Test data 6",
"time": "1533476164",
"previousBlockHash": "f067b84c4f465368e01f9707751958ff5cdb80a2c7a57ec500b6b394f6fbae7c"
},
{
"hash": "8e2c267d5a233698917233e430ed731cf5ae38e6bb38d0cc4d1890c2e0aafcd8",
"height": 6,
"body": "Test data 5",
"time": "1533476164",
"previousBlockHash": "c486fc72282de8138657698320f235f4d7efeb7e76e79ba21300ec83a49dbc92"
},
{
"hash": "0dc47898dbad06e2aa1a5d2fb69fb0bd2a7131638dcb22b658d38e752a63dac0",
"height": 7,
"body": "Test data 4",
"time": "1533476164",
"previousBlockHash": "8e2c267d5a233698917233e430ed731cf5ae38e6bb38d0cc4d1890c2e0aafcd8"
},
{
"hash": "773775e8b95bcd372af453c971c06ea94b07f774030e8113dce081c91dbf38f9",
"height": 8,
"body": "Test data 3",
"time": "1533476164",
"previousBlockHash": "0dc47898dbad06e2aa1a5d2fb69fb0bd2a7131638dcb22b658d38e752a63dac0"
},
{
"hash": "eae008bff794421c783c93b6eb71fb186d18326e2a5a21f395aad2bf55fac837",
"height": 9,
"body": "Test data 2",
"time": "1533476164",
"previousBlockHash": "773775e8b95bcd372af453c971c06ea94b07f774030e8113dce081c91dbf38f9"
}
]
}
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