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updating floBlockchainAPI to latest (v2.1.1)

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This commit is contained in:
sairajzero 2021-09-20 20:48:01 +05:30
parent 20fd7aaeb1
commit c8e27f7315
1 changed files with 196 additions and 107 deletions
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303
src/floBlockchainAPI.js
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@ -1,43 +1,49 @@
'use strict';
/* FLO Blockchain Operator to send/receive data from blockchain using API calls*/
(function(GLOBAL){
const floBlockchainAPI = GLOBAL.floBlockchainAPI = {
(function(GLOBAL) {
const floBlockchainAPI = GLOBAL.floBlockchainAPI = {
util: {
serverList: floGlobals.apiURL[floGlobals.blockchain].slice(0),
curPos: floCrypto.randInt(0, floGlobals.apiURL[floGlobals.blockchain].length - 1),
fetch_retry: function(apicall) {
fetch_retry: function(apicall, rm_flosight) {
return new Promise((resolve, reject) => {
this.serverList.splice(this.curPos, 1);
let i = this.serverList.indexOf(rm_flosight)
if (i != -1) this.serverList.splice(i, 1);
this.curPos = floCrypto.randInt(0, this.serverList.length - 1);
this.fetch_api(apicall)
.then(result => resolve(result))
.catch(error => reject(error));
});
})
},
fetch_api: function(apicall) {
return new Promise((resolve, reject) => {
if (this.serverList.length === 0)
reject("No floSight server working");
else {
fetch(this.serverList[this.curPos] + apicall).then(response => {
let flosight = this.serverList[this.curPos];
fetch(flosight + apicall).then(response => {
if (response.ok)
response.json().then(data => resolve(data));
else {
this.fetch_retry(apicall)
this.fetch_retry(apicall, flosight)
.then(result => resolve(result))
.catch(error => reject(error));
};
}
}).catch(error => {
this.fetch_retry(apicall)
this.fetch_retry(apicall, flosight)
.then(result => resolve(result))
.catch(error => reject(error));
});
};
});
})
}
})
},
current: function() {
return this.serverList[this.curPos];
}
},
//Promised function to get data from API
promisedAPI: function(apicall) {
return new Promise((resolve, reject) => {
@ -47,7 +53,7 @@
.catch(error => reject(error));
});
},
//Get balance for the given Address
getBalance: function(addr) {
return new Promise((resolve, reject) => {
@ -56,58 +62,80 @@
.catch(error => reject(error));
});
},
//Write Data into blockchain
writeData: function(senderAddr, data, privKey, receiverAddr = floGlobals.adminID) {
writeData: function(senderAddr, data, privKey, receiverAddr = floGlobals.adminID, strict_utxo = true) {
return new Promise((resolve, reject) => {
if (typeof data != "string")
data = JSON.stringify(data);
this.sendTx(senderAddr, receiverAddr, floGlobals.sendAmt, privKey, data)
this.sendTx(senderAddr, receiverAddr, floGlobals.sendAmt, privKey, data, strict_utxo)
.then(txid => resolve(txid))
.catch(error => reject(error));
});
},
//Send Tx to blockchain
sendTx: function(senderAddr, receiverAddr, sendAmt, privKey, floData = '') {
sendTx: function(senderAddr, receiverAddr, sendAmt, privKey, floData = '', strict_utxo = true) {
return new Promise((resolve, reject) => {
if (!floCrypto.validateAddr(senderAddr))
reject(`Invalid address : ${senderAddr}`);
if (!floCrypto.validateASCII(floData))
return reject("Invalid FLO_Data: only printable ASCII characters are allowed");
else if (!floCrypto.validateAddr(senderAddr))
return reject(`Invalid address : ${senderAddr}`);
else if (!floCrypto.validateAddr(receiverAddr))
reject(`Invalid address : ${receiverAddr}`);
return reject(`Invalid address : ${receiverAddr}`);
else if (privKey.length < 1 || !floCrypto.verifyPrivKey(privKey, senderAddr))
reject("Invalid Private key!");
return reject("Invalid Private key!");
else if (typeof sendAmt !== 'number' || sendAmt <= 0)
reject(`Invalid sendAmt : ${sendAmt}`);
else {
var trx = bitjs.transaction();
var utxoAmt = 0.0;
var fee = floGlobals.fee;
this.promisedAPI(`api/addr/${senderAddr}/utxo`).then(utxos => {
for (var i = utxos.length - 1; (i >= 0) && (utxoAmt < sendAmt + fee); i--) {
if (utxos[i].confirmations) {
trx.addinput(utxos[i].txid, utxos[i].vout, utxos[i].scriptPubKey);
utxoAmt += utxos[i].amount;
} else break;
};
if (utxoAmt < sendAmt + fee)
reject("Insufficient balance!");
else {
trx.addoutput(receiverAddr, sendAmt);
var change = utxoAmt - sendAmt - fee;
if (change > 0)
trx.addoutput(senderAddr, change);
trx.addflodata(floData.replace(/\n/g, ' '));
var signedTxHash = trx.sign(privKey, 1);
this.broadcastTx(signedTxHash)
.then(txid => resolve(txid))
.catch(error => reject(error));
};
}).catch(error => reject(error));
};
return reject(`Invalid sendAmt : ${sendAmt}`);
//get unconfirmed tx list
this.promisedAPI(`api/addr/${senderAddr}`).then(result => {
this.readTxs(senderAddr, 0, result.unconfirmedTxApperances).then(result => {
let unconfirmedSpent = {};
for (let tx of result.items)
if (tx.confirmations == 0)
for (let vin of tx.vin)
if (vin.addr === senderAddr) {
if (Array.isArray(unconfirmedSpent[vin.txid]))
unconfirmedSpent[vin.txid].push(vin.vout);
else
unconfirmedSpent[vin.txid] = [vin.vout];
}
//get utxos list
this.promisedAPI(`api/addr/${senderAddr}/utxo`).then(utxos => {
//form/construct the transaction data
var trx = bitjs.transaction();
var utxoAmt = 0.0;
var fee = floGlobals.fee;
for (var i = utxos.length - 1;
(i >= 0) && (utxoAmt < sendAmt + fee); i--) {
//use only utxos with confirmations (strict_utxo mode)
if (utxos[i].confirmations || !strict_utxo) {
if (utxos[i].txid in unconfirmedSpent && unconfirmedSpent[utxos[i].txid].includes(utxos[i].vout))
continue; //A transaction has already used this utxo, but is unconfirmed.
trx.addinput(utxos[i].txid, utxos[i].vout, utxos[i].scriptPubKey);
utxoAmt += utxos[i].amount;
};
}
if (utxoAmt < sendAmt + fee)
reject("Insufficient FLO balance!");
else {
trx.addoutput(receiverAddr, sendAmt);
var change = utxoAmt - sendAmt - fee;
if (change > 0)
trx.addoutput(senderAddr, change);
trx.addflodata(floData.replace(/\n/g, ' '));
var signedTxHash = trx.sign(privKey, 1);
this.broadcastTx(signedTxHash)
.then(txid => resolve(txid))
.catch(error => reject(error))
}
}).catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
});
},
//merge all UTXOs of a given floID into a single UTXO
mergeUTXOs: function(floID, privKey, floData = '') {
return new Promise((resolve, reject) => {
@ -115,7 +143,8 @@
return reject(`Invalid floID`);
if (!floCrypto.verifyPrivKey(privKey, floID))
return reject("Invalid Private Key");
if (!floCrypto.validateASCII(floData))
return reject("Invalid FLO_Data: only printable ASCII characters are allowed");
var trx = bitjs.transaction();
var utxoAmt = 0.0;
var fee = floGlobals.fee;
@ -124,17 +153,17 @@
if (utxos[i].confirmations) {
trx.addinput(utxos[i].txid, utxos[i].vout, utxos[i].scriptPubKey);
utxoAmt += utxos[i].amount;
};
}
trx.addoutput(floID, utxoAmt - fee);
trx.addflodata(floData.replace(/\n/g, ' '));
var signedTxHash = trx.sign(privKey, 1);
this.broadcastTx(signedTxHash)
.then(txid => resolve(txid))
.catch(error => reject(error));
}).catch(error => reject(error));
});
.catch(error => reject(error))
}).catch(error => reject(error))
})
},
/**Write data into blockchain from (and/or) to multiple floID
* @param {Array} senderPrivKeys List of sender private-keys
* @param {string} data FLO data of the txn
@ -151,23 +180,23 @@
let amount = (floGlobals.sendAmt * receivers.length) / senderPrivKeys.length;
senderPrivKeys.forEach(key => tmp[key] = amount);
senderPrivKeys = tmp;
};
}
if (!Array.isArray(receivers))
return reject("Invalid receivers: Receivers must be Array");
else {
let tmp = {};
let amount = floGlobals.sendAmt;
receivers.forEach(floID => tmp[floID] = amount);
receivers = tmp;
};
receivers = tmp
}
if (typeof data != "string")
data = JSON.stringify(data);
this.sendTxMultiple(senderPrivKeys, receivers, data)
.then(txid => resolve(txid))
.catch(error => reject(error));
});
.catch(error => reject(error))
})
},
/**Send Tx from (and/or) to multiple floID
* @param {Array or Object} senderPrivKeys List of sender private-key (optional: with coins to be sent)
* @param {Object} receivers List of receivers with respective amount to be sent
@ -176,7 +205,8 @@
*/
sendTxMultiple: function(senderPrivKeys, receivers, floData = '') {
return new Promise((resolve, reject) => {
if (!floCrypto.validateASCII(floData))
return reject("Invalid FLO_Data: only printable ASCII characters are allowed");
let senders = {},
preserveRatio;
//check for argument validations
@ -186,7 +216,7 @@
InvalidSenderAmountFor: [],
InvalidReceiverIDs: [],
InvalidReceiveAmountFor: []
};
}
let inputVal = 0,
outputVal = 0;
//Validate sender privatekeys (and send amount if passed)
@ -200,12 +230,12 @@
let floID = floCrypto.getFloID(key);
senders[floID] = {
wif: key
};
};
}
}
} catch (error) {
invalids.InvalidSenderPrivKeys.push(key);
};
});
invalids.InvalidSenderPrivKeys.push(key)
}
})
preserveRatio = true;
}
//conversion when privatekeys are passed with send amount
@ -223,14 +253,14 @@
senders[floID] = {
wif: key,
coins: senderPrivKeys[key]
};
};
}
}
} catch (error) {
invalids.InvalidSenderPrivKeys.push(key);
};
};
invalids.InvalidSenderPrivKeys.push(key)
}
}
preserveRatio = false;
};
}
//Validate the receiver IDs and receive amount
for (let floID in receivers) {
if (!floCrypto.validateAddr(floID))
@ -239,7 +269,7 @@
invalids.InvalidReceiveAmountFor.push(floID);
else
outputVal += receivers[floID];
};
}
//Reject if any invalids are found
for (let i in invalids)
if (!invalids[i].length)
@ -250,7 +280,7 @@
if (!preserveRatio && inputVal != outputVal)
return reject(`Input Amount (${inputVal}) not equal to Output Amount (${outputVal})`);
} catch (error) {
return reject(error);
return reject(error)
}
//Get balance of senders
let promises = [];
@ -267,15 +297,15 @@
let insufficient = [];
for (let floID in senders) {
balance[floID] = parseFloat(results.shift());
if (isNaN(balance[floID]) || (preserveRatio && balance[floID] <= totalFee)
|| (!preserveRatio && balance[floID] < senders[floID].coins + dividedFee))
if (isNaN(balance[floID]) || (preserveRatio && balance[floID] <= totalFee) ||
(!preserveRatio && balance[floID] < senders[floID].coins + dividedFee))
insufficient.push(floID);
totalBalance += balance[floID];
};
}
if (insufficient.length)
return reject({
InsufficientBalance: insufficient
});
})
//Calculate totalSentAmount and check if totalBalance is sufficient
let totalSendAmt = totalFee;
for (floID in receivers)
@ -299,18 +329,20 @@
sendAmt = senders[floID].coins + dividedFee;
let wif = senders[floID].wif;
let utxoAmt = 0.0;
for (let i = utxos.length - 1; (i >= 0) && (utxoAmt < sendAmt); i--)
for (let i = utxos.length - 1;
(i >= 0) && (utxoAmt < sendAmt); i--) {
if (utxos[i].confirmations) {
trx.addinput(utxos[i].txid, utxos[i].vout, utxos[i].scriptPubKey);
wifSeq.push(wif);
utxoAmt += utxos[i].amount;
};
}
}
if (utxoAmt < sendAmt)
return reject("Insufficient balance:" + floID);
let change = (utxoAmt - sendAmt);
if (change > 0)
trx.addoutput(floID, change);
};
}
for (floID in receivers)
trx.addoutput(floID, receivers[floID]);
trx.addflodata(floData.replace(/\n/g, ' '));
@ -319,18 +351,18 @@
var signedTxHash = trx.serialize();
this.broadcastTx(signedTxHash)
.then(txid => resolve(txid))
.catch(error => reject(error));
}).catch(error => reject(error));
}).catch(error => reject(error));
});
.catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
})
},
//Broadcast signed Tx in blockchain using API
broadcastTx: function(signedTxHash) {
return new Promise((resolve, reject) => {
var request = new XMLHttpRequest();
var url = this.util.serverList[this.util.curPos] + 'api/tx/send';
console.log(url);
//console.log(url);
if (signedTxHash.length < 1)
reject("Empty Signature");
else {
@ -346,19 +378,27 @@
reject(request.responseText);
}
request.send(params);
};
});
}
})
},
getTx: function(txid) {
return new Promise((resolve, reject) => {
this.promisedAPI(`api/tx/${txid}`)
.then(response => resolve(response))
.catch(error => reject(error))
})
},
//Read Txs of Address between from and to
readTxs: function(addr, from, to) {
return new Promise((resolve, reject) => {
this.promisedAPI(`api/addrs/${addr}/txs?from=${from}&to=${to}`)
.then(response => resolve(response))
.catch(error => reject(error));
.catch(error => reject(error))
});
},
//Read All Txs of Address (newest first)
readAllTxs: function(addr) {
return new Promise((resolve, reject) => {
@ -366,46 +406,95 @@
this.promisedAPI(`api/addrs/${addr}/txs?from=0&to=${response.totalItems}0`)
.then(response => resolve(response.items))
.catch(error => reject(error));
}).catch(error => reject(error));
}).catch(error => reject(error))
});
},
/*Read flo Data from txs of given Address
options can be used to filter data
limit : maximum number of filtered data (default = 1000, negative = no limit)
ignoreOld : ignore old txs (default = 0)
sentOnly : filters only sent data
pattern : filters data that starts with a pattern
contains : filters data that contains a string
receivedOnly: filters only received data
pattern : filters data that with JSON pattern
filter : custom filter funtion for floData (eg . filter: d => {return d[0] == '$'})
tx : (boolean) resolve tx data or not (resolves an Array of Object with tx details)
sender : flo-id(s) of sender
receiver : flo-id(s) of receiver
*/
readData: function(addr, options = {}) {
options.limit = options.limit || 0;
options.ignoreOld = options.ignoreOld || 0;
if (typeof options.sender === "string") options.sender = [options.sender];
if (typeof options.receiver === "string") options.receiver = [options.receiver];
return new Promise((resolve, reject) => {
this.promisedAPI(`api/addrs/${addr}/txs?from=0&to=1`).then(response => {
var newItems = response.totalItems - options.ignoreOld;
this.promisedAPI(`api/addrs/${addr}/txs?from=0&to=${newItems*2}`).then(response => {
this.promisedAPI(`api/addrs/${addr}/txs?from=0&to=${newItems*2}`).then(
response => {
if (options.limit <= 0)
options.limit = response.items.length;
var filteredData = [];
for (let i = 0; i < (response.totalItems - options.ignoreOld) &&
filteredData.length < options.limit; i++) {
if (options.sentOnly && response.items[i].vin[0].addr !== addr)
continue;
if (options.pattern) {
try {
let jsonContent = JSON.parse(response.items[i].floData)
let jsonContent = JSON.parse(response.items[i].floData);
if (!Object.keys(jsonContent).includes(options.pattern))
continue;
} catch (error) {
continue;
}
}
if (options.sentOnly) {
let flag = false;
for (let vin of response.items[i].vin)
if (vin.addr === addr) {
flag = true;
break;
}
if (!flag) continue;
}
if (Array.isArray(options.sender)) {
let flag = false;
for (let vin of response.items[i].vin)
if (options.sender.includes(vin.addr)) {
flag = true;
break;
}
if (!flag) continue;
}
if (options.receivedOnly) {
let flag = false;
for (let vout of response.items[i].vout)
if (vout.scriptPubKey.addresses[0] === addr) {
flag = true;
break;
}
if (!flag) continue;
}
if (Array.isArray(options.receiver)) {
let flag = false;
for (let vout of response.items[i].vout)
if (options.receiver.includes(vout.scriptPubKey.addresses[0])) {
flag = true;
break;
}
if (!flag) continue;
}
if (options.filter && !options.filter(response.items[i].floData))
continue;
filteredData.push(response.items[i].floData);
};
if (options.tx) {
let d = {}
d.txid = response.items[i].txid;
d.time = response.items[i].time;
d.blockheight = response.items[i].blockheight;
d.data = response.items[i].floData;
filteredData.push(d);
} else
filteredData.push(response.items[i].floData);
}
resolve({
totalTxs: response.totalItems,
data: filteredData
@ -419,4 +508,4 @@
});
}
}
})(typeof global !== "undefined" ? global : window);
})(typeof global !== "undefined" ? global : window);