htmlcoin-api
v0.0.28
Published
A HTMLCOIN blockchain REST and web socket API service for HTMLCOINCORE Node.
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Statistics
A HTMLCOIN blockchain REST and web socket API service for HTMLCOINCORE Node.
This is a backend-only service. If you're looking for the web frontend application, take a look at https://github.com/HTMLCOIN/htmlcoin-explorer.
Getting Started
npm install -g htmlcoincore-node@latest
htmlcoincore-node create mynode
cd mynode
htmlcoincore-node install htmlcoin-api
htmlcoincore-node start
The API endpoints will be available by default at: http://localhost:3001/htmlcoin-api/
Prerequisites
Note: You can use an existing HTMLCOIN data directory, however txindex
, addressindex
, timestampindex
and spentindex
needs to be set to true in htmlcoin.conf
, as well as a few other additional fields.
Query Rate Limit
To protect the server, htmlcoin-api has a built it query rate limiter. It can be configurable in htmlcoincore-node.json
with:
"servicesConfig": {
"htmlcoin-api": {
"rateLimiterOptions": {
"whitelist": ["::ffff:127.0.0.1"]
}
}
}
Or disabled entirely with:
"servicesConfig": {
"htmlcoin-api": {
"disableRateLimiter": true
}
}
Tokens
Token Account Balance
`GET` /htmlcoin-api/tokens/{:tokenAddressBase}/addresses/{:addressBase}/balance
or
`GET` /htmlcoin-api/tokens/{:tokenAddressBase}/addresses/{:addressBase}/balance?format=object
Query Params
Optional:
`format=object`
This would return:
1000000000000000000
{
"balance": "1000000000000000000"
}
Token Total supply
`GET` /htmlcoin-api/tokens/{:tokenAddressBase}/total-supply
or
`GET` /htmlcoin-api/tokens/{:tokenAddressBase}/total-supply?format=object
Query Params
Optional:
`format=object`
This would return:
"1000000000000000000"
or
{
"total_supply": "1000000000000000000"
}
Token Transactions
`GET` /htmlcoin-api/tokens/{:tokenAddressBase}/transactions
Query Params
Optional:
`limit=<Number>` > MAX_LIMIT === 100 `offset=<Number>` `from_block=<Number>` `to_block=<Number>` `from_date_time=<ISO8601 Date>` `to_date_time=<ISO8601 Date>` `addresses=<Array.<String>>`
Eg:
`GET` /htmlcoin-api/tokens/HNdW79juyJNJ89h99D9vfo5QhCZpmavJNX/transactions?limit=20&offset=1&from_block=34101&to_block=34378&from_date_time=2017-10-27T01:23:10.000Z&to_date_time=2018-10-27T01:24:10.000Z&addresses[]=HbmrFnBhyMKUhrabXfaAWZTncSWbJA8FsG&addresses[]=HarHW2HjV8Z3njxiTuvUZU3hmqahKNZ49y
This would return:
{
"limit": 20,
"offset": 1,
"addresses": [
"HbmrFnBhyMKUhrabXfaAWZTncSWbJA8FsG",
"HarHW2HjV8Z3njxiTuvUZU3hmqahKNZ49y"
],
"from_block": 34101,
"to_block": 34378,
"from_date_time": "2017-10-27T01:23:10.000Z",
"to_date_time": "2018-10-27T01:24:10.000Z",
"count": 2,
"items": [
{
"contract_address_base": "HNdW79juyJNJ89h99D9vfo5QhCZpmavJNX",
"block_height": 34377,
"tx_hash": "e5c16ea5785fed909957100c3721a62f5f5dfe427af1c926ba11e64c3f905fab",
"from": "HNvEBPtXwezdJjkUUy2JF6pirGn1vtkaNt",
"to": "HarHW2HjV8Z3njxiTuvUZU3hmqahKNZ49y",
"value": "100000000000",
"block_date_time": "2017-10-27T12:28:48.000Z"
}
]
}
API HTTP Endpoints
Account Info
`GET` /htmlcoin-api/contracts/{:contractHash}/info
This would return:
{
address: "f8fe26582d6ce7f0233aee0477de5be606cca653",
balance: 0,
storage: {
03: "6f",
00: "5374616e64617264000000000000000000000000000000000000000000000010",
02: "5354440000000000000000000000000000000000000000000000000000000006",
03c2cc9c95da7ca004141242c8b36d98e928596f771044fd5552d3ee8b47438f: "2710",
04: "2710",
01: "5374616e64617264200000000000000000000000000000000000000000000012"
},
code: "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vins: [
{
hash: "2c329c6793f21b1655be8940bf46b0fae6af303e142b39d1c813796970321124",
vout: 0,
amount: 0
}
]
}
Statistics
Total 24h Statistic
`GET` /htmlcoin-api/statistics/total
This would return:
{
n_blocks_mined: 1268,
time_between_blocks: 86301,
mined_currency_amount: 1268000000000000,
transaction_fees: 633992859997,
number_of_transactions: 2547,
outputs_volume: 46920965480,
difficulty: 981808167.7687966,
stake: 0.17279912782774598
}
Transactions Statistic
`GET` /htmlcoin-api/statistics/transactions?days=14
This would return:
[
{
date: "2017-05-30",
transaction_count: 1087,
block_count: 541
},
...
]
Fees Statistic
`GET` /htmlcoin-api/statistics/fees?days=14
This would return:
[
{
date: "2017-06-06",
fee: 500000000
},
...
]
Outputs Statistic
`GET` /htmlcoin-api/statistics/outputs?days=14
This would return:
[
{
date: "2017-06-06",
sum: 0
},
...
]
Difficulty Statistic
`GET` /htmlcoin-api/statistics/difficulty?days=14
This would return:
[
{
date: "2017-06-06",
sum: 0
},
...
]
Stake Statistic
`GET` /htmlcoin-api/statistics/stake?days=14
This would return:
[
{
date: "2017-06-06",
sum: 0
},
...
]
Total Supply Statistic
`GET` /htmlcoin-api/circulating-supply
or
`GET` /htmlcoin-api/circulating-supply/?format=object
This would return:
88410384
or
{
"circulatingSupply": "88410384"
}
`GET` /htmlcoin-api/supply
or
`GET` /htmlcoin-api/supply?format=object
This would return:
100091264
or
{
"supply": "100091264"
}
Block
/htmlcoin-api/block/[:hash]
/htmlcoin-api/block/00000000a967199a2fad0877433c93df785a8d8ce062e5f9b451cd1397bdbf62
Block Index
Get block hash by height
/htmlcoin-api/block-index/[:height]
/htmlcoin-api/block-index/0
This would return:
{
"blockHash":"000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"
}
which is the hash of the Genesis block (0 height)
Raw Block
/htmlcoin-api/rawblock/[:blockHash]
/htmlcoin-api/rawblock/[:blockHeight]
This would return:
{
"rawblock":"blockhexstring..."
}
Block Summaries
Get block summaries by date:
/htmlcoin-api/blocks?limit=3&blockDate=2016-04-22
Example response:
{
"blocks": [
{
"height": 408495,
"size": 989237,
"hash": "00000000000000000108a1f4d4db839702d72f16561b1154600a26c453ecb378",
"time": 1461360083,
"txlength": 1695,
"poolInfo": {
"poolName": "BTCC Pool",
"url": "https://pool.btcc.com/"
}
}
],
"length": 1,
"pagination": {
"next": "2016-04-23",
"prev": "2016-04-21",
"currentTs": 1461369599,
"current": "2016-04-22",
"isToday": true,
"more": true,
"moreTs": 1461369600
}
}
Transaction
/htmlcoin-api/tx/[:txid]
/htmlcoin-api/tx/525de308971eabd941b139f46c7198b5af9479325c2395db7f2fb5ae8562556c
/htmlcoin-api/rawtx/[:rawid]
/htmlcoin-api/rawtx/525de308971eabd941b139f46c7198b5af9479325c2395db7f2fb5ae8562556c
Address
/htmlcoin-api/addr/[:addr][?noTxList=1][&from=&to=]
/htmlcoin-api/addr/mmvP3mTe53qxHdPqXEvdu8WdC7GfQ2vmx5?noTxList=1
/htmlcoin-api/addr/mmvP3mTe53qxHdPqXEvdu8WdC7GfQ2vmx5?from=1000&to=2000
Address Properties
/htmlcoin-api/addr/[:addr]/balance
/htmlcoin-api/addr/[:addr]/totalReceived
/htmlcoin-api/addr/[:addr]/totalSent
/htmlcoin-api/addr/[:addr]/unconfirmedBalance
The response contains the value in Satoshis.
Unspent Outputs
/htmlcoin-api/addr/[:addr]/utxo
Sample return:
[
{
"address":"mo9ncXisMeAoXwqcV5EWuyncbmCcQN4rVs",
"txid":"d5f8a96faccf79d4c087fa217627bb1120e83f8ea1a7d84b1de4277ead9bbac1",
"vout":0,
"scriptPubKey":"76a91453c0307d6851aa0ce7825ba883c6bd9ad242b48688ac",
"amount":0.000006,
"satoshis":600,
"confirmations":0,
"ts":1461349425
},
{
"address": "mo9ncXisMeAoXwqcV5EWuyncbmCcQN4rVs",
"txid": "bc9df3b92120feaee4edc80963d8ed59d6a78ea0defef3ec3cb374f2015bfc6e",
"vout": 1,
"scriptPubKey": "76a91453c0307d6851aa0ce7825ba883c6bd9ad242b48688ac",
"amount": 0.12345678,
"satoshis: 12345678,
"confirmations": 1,
"height": 300001
}
]
Unspent Outputs for Multiple Addresses
GET method:
/htmlcoin-api/addrs/[:addrs]/utxo
/htmlcoin-api/addrs/2NF2baYuJAkCKo5onjUKEPdARQkZ6SYyKd5,2NAre8sX2povnjy4aeiHKeEh97Qhn97tB1f/utxo
POST method:
/htmlcoin-api/addrs/utxo
POST params:
addrs: 2NF2baYuJAkCKo5onjUKEPdARQkZ6SYyKd5,2NAre8sX2povnjy4aeiHKeEh97Qhn97tB1f
Transactions by Block
/htmlcoin-api/txs/?block=HASH
/htmlcoin-api/txs/?block=00000000fa6cf7367e50ad14eb0ca4737131f256fc4c5841fd3c3f140140e6b6
Transactions by Address
/htmlcoin-api/txs/?address=ADDR
/htmlcoin-api/txs/?address=mmhmMNfBiZZ37g1tgg2t8DDbNoEdqKVxAL
Transactions Receipt
/htmlcoin-api/txs/[:tx_id]/receipt
Transactions for Multiple Addresses
GET method:
/htmlcoin-api/addrs/[:addrs]/txs[?from=&to=]
/htmlcoin-api/addrs/2NF2baYuJAkCKo5onjUKEPdARQkZ6SYyKd5,2NAre8sX2povnjy4aeiHKeEh97Qhn97tB1f/txs?from=0&to=20
POST method:
/htmlcoin-api/addrs/txs
POST params:
addrs: 2NF2baYuJAkCKo5onjUKEPdARQkZ6SYyKd5,2NAre8sX2povnjy4aeiHKeEh97Qhn97tB1f
from (optional): 0
to (optional): 20
noAsm (optional): 1 (will omit script asm from results)
noScriptSig (optional): 1 (will omit the scriptSig from all inputs)
noSpent (option): 1 (will omit spent information per output)
Sample output:
{ totalItems: 100,
from: 0,
to: 20,
items:
[ { txid: '3e81723d069b12983b2ef694c9782d32fca26cc978de744acbc32c3d3496e915',
version: 1,
locktime: 0,
vin: [Object],
vout: [Object],
blockhash: '00000000011a135e5277f5493c52c66829792392632b8b65429cf07ad3c47a6c',
confirmations: 109367,
time: 1393659685,
blocktime: 1393659685,
valueOut: 0.3453,
size: 225,
firstSeenTs: undefined,
valueIn: 0.3454,
fees: 0.0001 },
{ ... },
{ ... },
...
{ ... }
]
}
Note: if pagination params are not specified, the result is an array of transactions.
Transaction Broadcasting
POST method:
/htmlcoin-api/tx/send
POST params:
rawtx: "signed transaction as hex string"
eg
rawtx: 01000000017b1eabe0209b1fe794124575ef807057c77ada2138ae4fa8d6c4de0398a14f3f00000000494830450221008949f0cb400094ad2b5eb399d59d01c14d73d8fe6e96df1a7150deb388ab8935022079656090d7f6bac4c9a94e0aad311a4268e082a725f8aeae0573fb12ff866a5f01ffffffff01f0ca052a010000001976a914cbc20a7664f2f69e5355aa427045bc15e7c6c77288ac00000000
POST response:
{
txid: [:txid]
}
eg
{
txid: "c7736a0a0046d5a8cc61c8c3c2821d4d7517f5de2bc66a966011aaa79965ffba"
}
Historic Blockchain Data Sync Status
/htmlcoin-api/sync
Live Network P2P Data Sync Status
/htmlcoin-api/peer
Status of the HTMLCOIN Network
/htmlcoin-api/status?q=xxx
DGP info
/htmlcoin-api/dgpinfo
Where "xxx" can be:
- getInfo
- getDifficulty
- getBestBlockHash
- getLastBlockHash
Utility Methods
/htmlcoin-api/utils/estimatefee[?nbBlocks=2]
Min Estimate Fee Per KB
/htmlcoin-api/utils/minestimatefee[?nbBlocks=2]
resp:
{
fee_per_kb: 0.00001
}
HRC20 info
/htmlcoin-api/erc20/:contractAddress
HRC20 transfers
/htmlcoin-api/erc20/:contractAddress/transfers
HRC20 balances
/htmlcoin-api/erc20/:contractAddress/balances
Call Contract
/htmlcoin-api/contracts/:contractaddress/hash/:contracthash/call
Web Socket API
The web socket API is served using socket.io.
The following are the events published by insight:
tx
: new transaction received from network. This event is published in the 'inv' room. Data will be a app/models/Transaction object.
Sample output:
{
"txid":"00c1b1acb310b87085c7deaaeba478cef5dc9519fab87a4d943ecbb39bd5b053",
"processed":false
...
}
block
: new block received from network. This event is published in the inv
room. Data will be a app/models/Block object.
Sample output:
{
"hash":"000000004a3d187c430cd6a5e988aca3b19e1f1d1727a50dead6c8ac26899b96",
"time":1389789343,
...
}
status
: every 1% increment on the sync task, this event will be triggered. This event is published in the sync
room.
Sample output:
{
blocksToSync: 164141,
syncedBlocks: 475,
upToExisting: true,
scanningBackward: true,
isEndGenesis: true,
end: "000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943",
isStartGenesis: false,
start: "000000009f929800556a8f3cfdbe57c187f2f679e351b12f7011bfc276c41b6d"
}
Example Usage
The following html page connects to the socket.io insight API and listens for new transactions.
html
<html>
<body>
<script src="http://<insight-server>:<port>/socket.io/socket.io.js"></script>
<script>
eventToListenTo = 'tx'
room = 'inv'
var socket = io("http://<insight-server>:<port>/");
socket.on('connect', function() {
// Join the room.
socket.emit('subscribe', room);
})
socket.on(eventToListenTo, function(data) {
console.log("New transaction received: " + data.txid)
})
</script>
</body>
</html>
License
(The MIT License)
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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