how to connect to bitcoin node in javascript without running a local node
how to connect to bitcoin node in javascript without running a local node
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user1386985 · External communityPost link
External question — Bitcoin Stack Exchange
Author: user1386985
Original post: https://bitcoin.stackexchange.com/questions/109619
License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/
Adaptation: HTML converted to plain text; contact email addresses removed.
I am trying to get some bitcoin network data and I am using bitcoind-rpc library.
If i just run their example:
var run = function() {
var bitcore = require('bitcore');
var RpcClient = require('bitcoind-rpc');
var config = {
protocol: 'http',
user: 'user',
pass: 'pass',
host: '127.0.0.1',
port: '18332',
};
// config can also be an url, e.g.:
// var config = 'http://user:pass@127.0.0.1:18332';
var rpc = new RpcClient(config);
var txids = [];
function showNewTransactions() {
rpc.getRawMemPool(function (err, ret) {
if (err) {
console.error(err);
return setTimeout(showNewTransactions, 10000);
}
function batchCall() {
ret.result.forEach(function (txid) {
if (txids.indexOf(txid) === -1) {
rpc.getRawTransaction(txid);
}
});
}
rpc.batch(batchCall, function(err, rawtxs) {
if (err) {
console.error(err);
return setTimeout(showNewTransactions, 10000);
}
rawtxs.map(function (rawtx) {
var tx = new bitcore.Transaction(rawtx.result);
console.log('\n\n\n' + tx.id + ':', tx.toObject());
});
txids = ret.result;
setTimeout(showNewTransactions, 2500);
});
});
}
showNewTransactions();
};
I need to provide the data of my local node.
But I have problems downloading bitcoin node mostly because I do not have enough space.
Is there another way I can access the node without downloading full node localy?
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pinhead · External communityPost link
External answer — Bitcoin Stack Exchange
Author: pinhead
Original post: https://bitcoin.stackexchange.com/a/109635
License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/
Adaptation: HTML converted to plain text; contact email addresses removed.
Since you mention nodejs you might be interested in bcoin:
https://bcoin.io/
https://github.com/bcoin-org/bcoin/
Bcoin is modular and configurable in weird ways. See this other answer on how bcoin can be modified to download arbitrary blocks even in pruned mode:
How do I get old blocks while running a pruned node?
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