htmlcoin-api
Tokens
Table of Contents
Statistics
A Htmlcoin blockchain REST and web socket API service for Htmlcoincore Node.
Local RPC call
When the htmlcoin node is running, we can use htmlcoin command line interface htmlcoin-cli to interact with htmlcoind, and make local RPC calls.
e.g.:
oldclock@raven:~/htmlcoin-0.14.3/bin$ ./htmlcoin-cli getinfo
{
"version": 140300,
"protocolversion": 70016,
"walletversion": 130000,
"balance": 0.00000000,
"stake": 0.00000000,
"blocks": 12126,
"timeoffset": 0,
"connections": 8,
"proxy": "",
"difficulty": {
"proof-of-work": 1.52587890625e-05,
"proof-of-stake": 886731.5868738915
},
"testnet": false,
"moneysupply": 100028504,
"keypoololdest": 1505186997,
"keypoolsize": 100,
"paytxfee": 0.00000000,
"relayfee": 0.00400000,
"errors": ""
}
To get all RPC command list:
./htmlcoin-cli help
To get help for specific RPC command, use ./htmlcoin-cli help <RPCcmd>,e.g.:
./htmlcoin-cli help getinfo
JsonRPC settings
You can get the jsonrpc example by using (here we use getinfo as an example): ./htmlcoin-cli help getinfo
Examples:
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getinfo", "params": [] }' -H 'content-type: text/plain;' http://127.0.0.1:4889/
The example shows detailed format for jsonrpc content. However, it can only be called after setting rpcuser and rpcpassword. There are two ways to set the parameters, you can choose either.
Method 1:Create config file ~/.htmlcoin/htmlcoin.conf,which should include:
rpcuser=test #rpc user name, (necessary)
rpcpassword=test1234 #rpc password, (necessary)
# By default, only local jsonrpc is allowed
# Remote connection is allowed only when setting rpcallowip as following:
# both ipv4 and ipv6 can be set, e.g.:
#rpcallowip=192.168.77.51/255.255.255.0
#rpcallowip=1.2.3.4/24
#rpcallowip=2001:db8:85a3:0:0:8a2e:370:7334/96
After creating the config file, please restart the node to finish settings.
Method 2:Restart Htmlcoin node with following options:
./htmlcoind -daemon -rpcuser=test -rpcpassword=test1234 -rpcallowip=192.168.77.51/255.255.255.0
The meaning of options rpcuser, rpcpassword and rpcallowip are all the same with the config file above.
RPC call example
You can make remote RPC calls after the settings above. Here is an example: Suppose the htmlcoin node is running on an Ubuntu machine, whose ip is 192.168.77.188, default port=4889. Now we try to make remote jsonrpc call:
$ curl --user test:test1234 --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getinfo", "params": [] }' -H 'content-type: text/plain;' http://192.168.77.188:3889/
{"result":{"version":140300,"protocolversion":70016,"walletversion":130000,"balance":0.00000000,"stake":0.00000000,"blocks":12197,"timeoffset":0,"connections":8,"proxy":"","difficulty":{"proof-of-work":1.52587890625e-05,"proof-of-stake":650787.7561123729},"testnet":false,"moneysupply":100028788,"keypoololdest":1505186997,"keypoolsize":100,"paytxfee":0.00000000,"relayfee":0.00400000,"errors":""},"error":null,"id":"curltest"}
The result is identical with local call.
You can also use tools like postman to get the same result:
Nginx settings(optional)
As the example above, you might find that it is quite complicated to make remote jsonrpc, since you must include rpcuser, rpcpassword, as well as port in the command. If you don't want users to provide these parameters, we recommand using Nginx. The benefits for Nginx is not only about simplification, but also a good way to hide rpcuser, rpcpassword and port number. And you can filter some RPCs for security. Here we suppose the reader have installed Nginx and have basic knowledges about how to use it.
example:
Htmlcoin node is running on 192.168.77.188,
api proxy ip 192.168.77.51, with Nginx installed
Instructions:
1.Set the htmlcoin.conf of htmlcoin node, remember to add the proxy ip to rpcallowip e.g.:
rpcuser=test
rpcpassword=test1234
rpcallowip=192.168.77.51/255.255.255.0
2.Setup Nginx :
server {
listen 80;
server_name localhost;
location / {
proxy_pass http://192.168.77.188:4889; #to port 4889
proxy_set_header Authorization "Basic dGVzdDp0ZXN0MTIzNA=="; # its the base64 encode of test:test1234
}
}
3.Then you can make remote rpc call through proxy, without rpcuser or rpcpassword. e.g.:
$ curl --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getinfo", "params": [] }' -H 'content-type: text/plain;' http://192.168.77.51/
{"result":{"version":140300,"protocolversion":70016,"walletversion":130000,"balance":0.00000000,"stake":0.00000000,"blocks":12250,"timeoffset":0,"connections":8,"proxy":"","difficulty":{"proof-of-work":1.52587890625e-05,"proof-of-stake":651324.7815933984},"testnet":false,"moneysupply":100029000,"keypoololdest":1505186997,"keypoolsize":100,"paytxfee":0.00000000,"relayfee":0.00400000,"errors":""},"error":null,"id":"curltest"}
This is only a simple example. You might have different settings or tools instead.
Query Rate Limit
To protect the server, qtum-insight-api has a built it query rate limiter. It can be configurable in qtumcore-node.json with:
"servicesConfig": {
"qtum-insight-api": {
"rateLimiterOptions": {
"whitelist": ["::ffff:127.0.0.1"]
}
}
}
Or disabled entirely with:
"servicesConfig": {
"qtum-insight-api": {
"disableRateLimiter": true
}
}
Note: routePrefix can be configurable in qtumcore-node.json with:
"servicesConfig": {
"qtum-insight-api": {
"routePrefix": "insight-api",
}
}
Tokens
Token Account Balance
`GET` /insight-api/tokens/{:tokenAddressBase}/addresses/{:addressBase}/balance
or
`GET` /insight-api/tokens/{:tokenAddressBase}/addresses/{:addressBase}/balance?format=object
Query Params
Optional:
`format=object`
This would return:
1000000000000000000
{
"balance": "1000000000000000000"
}
Token Total supply
`GET` /insight-api/tokens/{:tokenAddressBase}/total-supply
or
`GET` /insight-api/tokens/{:tokenAddressBase}/total-supply?format=object
Query Params
Optional:
`format=object`
This would return:
"1000000000000000000"
or
{
"total_supply": "1000000000000000000"
}
Token Transactions
`GET` /insight-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>>`
E.g.:
`GET` /insight-api/tokens/QNdW79juyJNJ89h99D9vfo5QhCZpmavJNX/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[]=QbmrFnBhyMKUhrabXfaAWZTncSWbJA8FsG&addresses[]=QarHW2HjV8Z3njxiTuvUZU3hmqahKNZ49y
This would return:
{
"limit": 20,
"offset": 1,
"addresses": [
"QbmrFnBhyMKUhrabXfaAWZTncSWbJA8FsG",
"QarHW2HjV8Z3njxiTuvUZU3hmqahKNZ49y"
],
"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": "QNdW79juyJNJ89h99D9vfo5QhCZpmavJNX",
"block_height": 34377,
"tx_hash": "e5c16ea5785fed909957100c3721a62f5f5dfe427af1c926ba11e64c3f905fab",
"from": "QNvEBPtXwezdJjkUUy2JF6pirGn1vtkaNt",
"to": "QarHW2HjV8Z3njxiTuvUZU3hmqahKNZ49y",
"value": "100000000000",
"block_date_time": "2017-10-27T12:28:48.000Z"
}
]
}
API HTTP Endpoints
Account Info
`GET` /insight-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` /insight-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` /insight-api/statistics/transactions?days=14
This would return:
[
{
date: "2017-05-30",
transaction_count: 1087,
block_count: 541
},
...
]
Fees Statistic
`GET` /insight-api/statistics/fees?days=14
This would return:
[
{
date: "2017-06-06",
fee: 500000000
},
...
]
Outputs Statistic
`GET` /insight-api/statistics/outputs?days=14
This would return:
[
{
date: "2017-06-06",
sum: 0
},
...
]
Difficulty Statistic
`GET` /insight-api/statistics/difficulty?days=14
This would return:
[
{
date: "2017-06-06",
sum: 0
},
...
]
Stake Statistic
`GET` /insight-api/statistics/stake?days=14
This would return:
[
{
date: "2017-06-06",
sum: 0
},
...
]
Total Supply Statistic
`GET` /insight-api/circulating-supply
or
`GET` /insight-api/circulating-supply/?format=object
This would return:
88410384
or
{
"circulatingSupply": "88410384"
}
`GET` /insight-api/supply
or
`GET` /insight-api/supply?format=object
This would return:
100091264
or
{
"supply": "100091264"
}
Block
/insight-api/block/[:hash]
/insight-api/block/00000000a967199a2fad0877433c93df785a8d8ce062e5f9b451cd1397bdbf62
Block Index
Get block hash by height
/insight-api/block-index/[:height]
/insight-api/block-index/0
This would return:
{
"blockHash":"000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"
}
which is the hash of the Genesis block (0 height)
Raw Block
/insight-api/rawblock/[:blockHash]
/insight-api/rawblock/[:blockHeight]
This would return:
{
"rawblock":"blockhexstring..."
}
Block Summaries
Get block summaries by date:
/insight-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
/insight-api/tx/[:txid]
/insight-api/tx/525de308971eabd941b139f46c7198b5af9479325c2395db7f2fb5ae8562556c
/insight-api/rawtx/[:rawid]
/insight-api/rawtx/525de308971eabd941b139f46c7198b5af9479325c2395db7f2fb5ae8562556c
Address
/insight-api/addr/[:addr][?noTxList=1][&from=&to=]
/insight-api/addr/mmvP3mTe53qxHdPqXEvdu8WdC7GfQ2vmx5?noTxList=1
/insight-api/addr/mmvP3mTe53qxHdPqXEvdu8WdC7GfQ2vmx5?from=1000&to=2000
Address Properties
/insight-api/addr/[:addr]/balance
/insight-api/addr/[:addr]/totalReceived
/insight-api/addr/[:addr]/totalSent
/insight-api/addr/[:addr]/unconfirmedBalance
The response contains the value in Satoshis.
Unspent Outputs
/insight-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:
/insight-api/addrs/[:addrs]/utxo
/insight-api/addrs/2NF2baYuJAkCKo5onjUKEPdARQkZ6SYyKd5,2NAre8sX2povnjy4aeiHKeEh97Qhn97tB1f/utxo
POST method:
/insight-api/addrs/utxo
POST params:
addrs: 2NF2baYuJAkCKo5onjUKEPdARQkZ6SYyKd5,2NAre8sX2povnjy4aeiHKeEh97Qhn97tB1f
Transactions by Block
/insight-api/txs/?block=HASH
/insight-api/txs/?block=00000000fa6cf7367e50ad14eb0ca4737131f256fc4c5841fd3c3f140140e6b6
Transactions by Address
/insight-api/txs/?address=ADDR
/insight-api/txs/?address=mmhmMNfBiZZ37g1tgg2t8DDbNoEdqKVxAL
Transactions Receipt
/insight-api/txs/[:tx_id]/receipt
Transactions for Multiple Addresses
GET method:
/insight-api/addrs/[:addrs]/txs[?from=&to=]
/insight-api/addrs/2NF2baYuJAkCKo5onjUKEPdARQkZ6SYyKd5,2NAre8sX2povnjy4aeiHKeEh97Qhn97tB1f/txs?from=0&to=20
POST method:
/insight-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:
/insight-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
/insight-api/sync
Live Network P2P Data Sync Status
/insight-api/peer
Status of the Htmlcoin Network
/insight-api/status?q=xxx
DGP info
/insight-api/dgpinfo
Where "xxx" can be:
getInfo
getDifficulty
getBestBlockHash
getLastBlockHash
Utility Methods
/insight-api/utils/estimatefee[?nbBlocks=2]
Min Estimate Fee Per KB
/insight-api/utils/minestimatefee[?nbBlocks=2]
resp:
{
fee_per_kb: 0.00001
}
QRC20 info
/insight-api/erc20/:contractAddress
> DEPRECATED
/insight-api/qrc20/:contractAddress
QRC20 transfers
/insight-api/erc20/:contractAddress/transfers
QRC20 balances
/insight-api/erc20/:contractAddress/balances
Call Contract
/insight-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>