Questions tagged [javascript]
JavaScript is a high-level programming language widely used for web development.
25
questions with no upvoted or accepted answers
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answer
57
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Invalid checksum when generating BIP-39 Mnemonic
I am trying to generate a mnemonic seed in Javascript, and while everything seems to be working, I am not getting a mnemonic with a correct checksum. Here is my implementation:
export const ...
- 21
2
votes
1
answer
179
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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?
- 10k
2
votes
0
answers
53
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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 ...
- 121
2
votes
0
answers
327
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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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1
vote
1
answer
85
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How to get the private key & wallet address using a multi-wallet recovery seed phrase?
How can I „convert“ a 12-words-long multi wallet seed phrase (of the Blockchain.com wallet) to the wallets private key and the wallets address using any programming language?
The given multi wallet ...
- 51
1
vote
0
answers
68
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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 ...
- 31
1
vote
0
answers
127
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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 ...
1
vote
0
answers
485
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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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1
vote
2
answers
133
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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 ...
- 19
1
vote
0
answers
586
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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 = ...
- 353
1
vote
0
answers
54
views
How to sign messages deterministically with bitcore?
How do you sign messages deterministically with bitcore?
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0
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Customizing the algoritm of the private key of Bitcoin (js)
Is there a way to change the Bitcoin private key creation algorithm so that only private keys are created whose extracted addresses start with "1a"?
A guide on the feasibility of this idea ...
Ali Pourshahrbabaki
0
votes
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answers
57
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Generate a Bitcoin taproot address with specific prefix for burning assets
I would like to generate a bitcoin taproot address (bc1p) for burning assets. Which means not one would have the private key. But in the mean time I would also want a vanity address (an address start ...
0
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37
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How to sign a PSBT with BitcoinerLAB?
First of all, We are using bitcoinerLab.
From the seed, we generate the Master Key, and with the path, we create the child key 0 (the parent's) and child key 1 (the child's). Now, from these keys, we ...
0
votes
1
answer
31
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Recreate Java code in python
I have a java code that I need to pass to python but I don't know which libraries to use and how to start and if you can help me I would really appreciate it
MNEMONIC = "twenty four mnemonic ...
- 19
0
votes
1
answer
39
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How to implement stake.com model of deposit & withdraw flow for my crypto poker casino?
In stake.com for each user they generate separate bech32 address for deposit & displays the deposited amount as balance in top of the navigation bar.
Similarly for withdraw they just ask for the ...
0
votes
0
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62
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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 ...
- 101
0
votes
0
answers
55
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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
votes
0
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71
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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 ...
user66539
0
votes
0
answers
174
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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, +...
- 101
0
votes
1
answer
675
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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 ...
- 101
0
votes
1
answer
156
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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. ...
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0
votes
1
answer
894
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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
votes
1
answer
430
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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 ...
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-1
votes
1
answer
318
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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 ...
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