Questions tagged [javascript]

JavaScript is a high-level programming language widely used for web development.

19 questions with no upvoted or accepted answers
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0answers
32 views

Sign transaction externally

I create a transaction with inputs from a given address / public key without signatures. Every input needs to be signed. I use a different method to generate the signatures so I can't provide a ...
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1answer
44 views

How to spend from a custom P2SH script using bitcore-lib

My Javascript/typescript project uses bitcore-lib. It uses Script.buildScriptHashOut to build custom P2SH outputs. How do I spend from this custom output?
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0answers
42 views

Bitcoin Script - Beautify

My question is if something exists to do the job in the opposite direction of miniscript. Miniscript's intention is to help:     ...writing (a subset of) Bitcoin Scripts in a structured way, enabling ...
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0answers
49 views

How can I use PSBT in a JavaScript project?

I am trying to use PSBT in a Bitcoin project. The idea is to generate keys and sign transactions client-side. I am already familiar with bitcoinjs-lib but I find the API rather complicated. It would ...
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0answers
108 views

bitcoind: How to get rawblock data with ZeroMQ

I am trying to use the zeromq api for bitcoind to get rawblock but its not working with the code I've provided below. I am able to get hashtx and rawtx if I remove the filter but not hashblock and ...
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0answers
92 views

How to connect to an ElectrumX server using JavaScript WebSockets?

I'm trying to connect to an ElectrumX server from an HTML webpage. But I can't get a working connection. I've tried with many servers from Electrum's servers.json list but none worked. Here's the ...
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2answers
101 views

Bitcoinja-lib. bitcoin.payments is null

I installed bitcoinjs-lib with command: meteor npm install bitcoinjs-lib. The installation command "flow-typed install -f 0.27 bitcoinjs-lib@2.2.0" didn't work. No idea what flow-typed is and the ...
1
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0answers
533 views

Decrypting BitcoinJ/MultiBit key (scrypt/aes-256) from protobuf with NodeJS

I'm trying to decrypt an encrypted private key from an encrypted Multibit Classic .wallet file but the resulting public key / wif doesn't match the original. Here is my code: 'use strict' var fs = ...
1
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0answers
51 views

How to sign messages deterministically with bitcore?

How do you sign messages deterministically with bitcore?
0
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0answers
30 views

Cannot unserialize chainstate transaction outputs after de-obfuscation

I was able to read chainstate database. Getting the key and de-obfuscating to get a valid last block. However, when it comes to transactions that follow after that, I cannot de-serialize them no ...
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0answers
32 views

Cryptocurrency Wallet 3rd party access

Do Crypto wallets such as Exodus etc have something like an API? For example is it possible to perform a cryptocurrency transaction directly from the web browser client (using the specified amount and ...
0
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0answers
38 views

How can i mine bitcoins to direct wallet using JavaScript?

I heard that we can mine bitcoins using javascript direct to the wallet? How can I create Program, script or application which direct mines to the wallet & I even search online but did not get ...
0
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1answer
88 views

How to get BTC transfer amount from raw tx using bitcoinjs

Suppose I have following object console.log(bitcoinjs.Transaction.fromHex(rawTx)); The output Transaction { version: 2, locktime: 1655960, ins: [ { hash: <Buffer dc 4d aa 10 db ...
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0answers
109 views

broadcasting bitcoin transaction issue using bitcore-explorers

I have been trying to do a transaction using bitcore-lib. I have successfully created transaction object. let bitcore_transaction = new bitcore.Transaction() .from(utxos[0]) .to(to, +...
0
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1answer
413 views

how to place a bitforex api buy order

I have read the documentation for BitForex on placing a buy order here: https://github.com/bitforexapi/API_Doc_en/wiki/Order Then after understanding that, I read the API Call Description ...
0
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1answer
82 views

How to create an application which constructs a transaction using `bcoin` (javascript)?

I am new to development. I am working on a project and I am trying to use bcoin. I want to create an application which has a UI, where the user will be asked to enter Destination address and amount. ...
0
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1answer
793 views

Signature for this request is not valid

im testing the binance api but cant get over the signature problem can u spot a mistake on my signature?: const crypted = CryptoJs.HmacSHA256("timestamp=" + new Date().getTime().toString() + "&...
0
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1answer
366 views

Is it possible to talk to bitcoin RPC API with Javascript and WITHOUT using a node server?

I am planning on building a Wallet and want to know if I can hook something like an Electron native JavaScript app to Bitcoin RPC without running node.js for the server calls, so using something like ...
-1
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1answer
307 views

Anybody using bitcore.io? I can't seem to make it work properly

I've installed bitcore.io on a folder for my nodejs, using the npm command. npm install bitcore npm install classtool Of course, I tried to run an example code, the one is shown at their website. I ...