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address subscriptions

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This commit is contained in:
Patrick Nagurny 2015-07-29 13:34:53 -04:00
parent bee86257ca
commit d563704e1c
1 changed files with 74 additions and 0 deletions
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74
lib/modules/address.js
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@ -12,6 +12,9 @@ var Address = bitcore.Address;
var AddressModule = function(options) {
BaseModule.call(this, options);
this.txSubscriptions = {};
this.balanceSubscriptions = {};
};
inherits(AddressModule, BaseModule);
@ -29,6 +32,13 @@ AddressModule.prototype.getAPIMethods = function() {
];
};
AddressModule.prototype.getEvents = function() {
return [
['transaction', this, this.subscribeTransaction, this.unsubscribeTransaction],
['balance', this, this.subscribeBalance, this.unsubscribeBalance]
];
};
AddressModule.prototype.blockHandler = function(block, addOutput, callback) {
var txs = this.db.getTransactionsFromBlock(block);
@ -82,6 +92,26 @@ AddressModule.prototype.blockHandler = function(block, addOutput, callback) {
key: [AddressModule.PREFIXES.OUTPUTS, address, timestamp, txid, outputIndex].join('-'),
value: [output.satoshis, script, height].join(':')
});
if(self.txSubscriptions[address]) {
var subscriptions = self.txSubscriptions[address];
for(var i = 0; i < subscriptions.length; i++) {
subscriptions[i].emit('transaction', tx);
}
}
if(self.balanceSubscriptions[address]) {
var emitters = self.balanceSubsriptions[address];
for(var i = 0; i < subscriptions.length; i++) {
self.getBalance(address, true, function(err, balance) {
if(err) {
return self.emit(err);
}
emitters[i].emit('balance', address, balance, block);
});
}
}
}
if(tx.isCoinbase()) {
@ -95,6 +125,50 @@ AddressModule.prototype.blockHandler = function(block, addOutput, callback) {
});
};
AddressModule.prototype.subscribeTransaction = function(emitter, addresses) {
for(var i = 0; i < addresses.length; i++) {
if(!this.txSubscriptions[addresses[i]]) {
this.txSubscriptions[addresses[i]] = [];
}
this.txSubscriptions[addresses[i]].push(emitter);
}
};
AddressModule.prototype.subscribeBalance = function(emitter, addresses) {
for(var i = 0; i < addresses.length; i++) {
if(!this.balanceSubscriptions[addresses[i]]) {
this.balanceSubscriptions[addresses[i]] = [];
}
this.balanceSubscriptions[addresses[i]].push(emitter);
}
};
AddressModule.prototype.unsubscribeTransaction = function(emitter, addresses) {
for(var i = 0; i < addresses.length; i++) {
if(this.txSubscriptions[addresses[i]]) {
var emitters = self.txSubscriptions[addresses[i]];
var index = emitters.indexOf(emitter);
if(index > -1) {
emitters.splice(index, 1);
}
}
}
};
AddressModule.prototype.unsubscribeBalance = function(emitter, addresses) {
for(var i = 0; i < addresses.length; i++) {
if(this.balanceSubscriptions[addresses[i]]) {
var emitters = self.balanceSubscriptions[addresses[i]];
var index = emitters.indexOf(emitter);
if(index > -1) {
emitters.splice(index, 1);
}
}
}
};
AddressModule.prototype.getBalance = function(address, queryMempool, callback) {
this.getUnspentOutputs(address, queryMempool, function(err, outputs) {
if(err) {