Questions tagged [json-rpc]

This tag should be used for questions relating to the Bitcoin Core/bitcoind JSON-RPC interface.

138 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
4
votes
1answer
333 views

Which RPC may I use to query bitcoind for raw transactions coming through?

I need to capture and store the raw transactions coming through my local full-node bitcoin instance. I read here that it is possible, but there is no mention of the particular RPC calls. I also see ...
4
votes
1answer
349 views

How to explore transaction chain via Original Bitcoin API as blockexplorer does it

Is there any possibility to explore transaction chain via Original Bitcoin API (https://en.bitcoin.it/wiki/Original_Bitcoin_client/API_Calls_list) as the blockexplorer does it. If not, why?
3
votes
0answers
108 views

Obtaining historical orphaned blocks (chaintips) without old node

I'm attempting to do some research surrounding orphaned blocks within the Bitcoin network. From my understanding the best and really only way to obtain data for blocks that no longer exist in the main ...
3
votes
0answers
453 views

bitcoind inconsistent authentication error

I am using a Linux computer. The issue I am having is that sometimes I have to use "kill -s 9 (bitcoind pid)" and restart bitcoind using "bitcoind -txindex" because bitcoind will sometimes not let me ...
3
votes
3answers
3k views

jsonRPCClient.php states its served a 401 error response

When I execute my php file from the command line I get this: <pre> PHP Warning: fopen(http://...@127.0.0.1:8332/): failed to open stream: HTTP request failed! HTTP/1.0 401 Authorization ...
3
votes
0answers
151 views

getblocktemplate times out after being called many times

I am writing a program about bitcoin mining. It calls the RPC method getblocktemplate every second. Sometimes bitcoind doesn't reply to my RPC getblocktemplate request, but bitcoind still accepted new ...
3
votes
0answers
108 views

When does the “reject” string have an empty reject reason upon submitting a new block?

I submitted a new block using the rpc command submit. And I just got a "reject" string without a reject reason. I checked the bitcoind source code, and found that it usually sends a reject reason; ...
3
votes
0answers
259 views

Bitcoind JSON-RPC - getbalance with 0 confirmations not included

When I access bitcoind through JSON-RPC and query: getbalance '*' 0 It does not include transactions with 0 confirmations. Only when a transaction has least 1 confirmation it is included in that ...
3
votes
1answer
166 views

What is the best way to implement withdrawal in online service?

Suppose we have a service, which holds user balance in Bitcoin. How to implement withdrawal from bitcoin perspective? Which RPC call to use? How to archive transaction to have a proof of sending ...
2
votes
1answer
37 views

How to prevent specific method calls to bitcoin node

I have setup a bitcoin node and can access RPC methods via curl or bitcoin-cli. Now I don't want to share the node with multiple parties and in such case, I want to restict some functions from being ...
2
votes
0answers
58 views

Using bitcoind RPC to identify an incoming transaction that has been replaced using BIP125 Replace-By-Fee

In the context of running a web service that accepts payments in Bitcoin, how can we use bitcoind to identify a transaction that has been replaced using BIP125 Replace-By-Fee? When RBF is used, a new ...
2
votes
1answer
297 views

How to edit the label of an existing address exactly like in bitcoin-qt but instead using RPC calls?

I am trying to edit the label of a bitcoin address in my wallet outside of bitcoin-qt. Currently I only know of 'setaccount' but it results in two addresses after editing one, it assigns a new address ...
2
votes
1answer
1k views

Can't connect to Bitcoind remotely

I am running a Bitcoin Cash node on my server, and starting it like this: start bitcoind.exe --server=1 --rpcuser=user --rpcpassword=password --rest=1 --rpcport=8332 --datadir=F:\Bitcoin --bind=10.1....
2
votes
0answers
431 views

Bitcoin RPC: How to find the transaction that spends a TXO?

I suspect there is no good way to do it. However is there any sub-optimal way to find the transaction that spends a transaction output (knowing the txid and index) with Bitcoin RPC? Assuming txindex=1 ...
2
votes
1answer
597 views

How to get total number of transactions from bitcoin core wallet using rpc

I'm trying to implement paginations using : https://chainquery.com/bitcoin-api/listtransactions I want to have reverse listing (oldest first), so I need to get total number of transaction returned ...
2
votes
0answers
175 views

Can I balance load between two instances of bitcoin daemon by switching RPC request?

The question is pretty simple. I have two instances of bitcoin daemon. When I'm running my pool with parallel RPC requests to each instance it calls daemons too often and daemons queue of RPC calls ...
2
votes
0answers
591 views

How to test Bitcoin's RPC interface?

I can't find any tool to test RPC interface. I am looking for something like Postman (Chrome extenstion). I would like to send request (with login and password) and see their responses in JSON.
2
votes
0answers
92 views

The blockchain lookup speed in a local machine

How to determine the exact required time (seconds, milliseconds) to find a particular block when searching within a local blockchain using address? Is there any way to make a benchmark to study the ...
2
votes
0answers
237 views

bitcoind verifychain vs reindex

actually this is not Bitcoin but Litecoin 0.13.2 on Linux Mint, litecoind stopped with "bus error" just on start verifying blocks: tail ~/.litecoin/debug.log ... 2017-05-06 21:15:26 Verifying last ...
2
votes
0answers
791 views

I can't connect to RPC from python. JSONRPCException: -342

Tryed to run this code : from bitcoinrpc.authproxy import AuthServiceProxy, JSONRPCException import logging import json logging.basicConfig() logging.getLogger("BitcoinRPC").setLevel(logging.DEBUG) ...
2
votes
1answer
1k views

bitcoind sendfrom with minconf=0

Is it possible using bitcoind JSON-RPC API to receive funds from someone and send it immediately to another third-party address? I do not want to wait for 1 confirmation. getbalance with minconf=0 ...
2
votes
1answer
1k views

bitcoin-cli very slow to respond to RPC calls (Raspberry Pi)

Running Bitcoin 0.11 on Raspberry Pi 2 (Quad core 900MHz 1GB RAM, 128GB Flash Drive for blockchain, 8GB SD Card for OS and software). Blockchain is fully synced, 13 connections. In htop, I see I'm ...
2
votes
0answers
600 views

JSON RPC from external server

I'm having trouble connecting to my node via JSON RPC from an external server. On the same machine, I'm able to pass the commands through bitcoin-cli and also locally I am able to run this PHP file ...
2
votes
0answers
192 views

Get as many blocks as possible (stale, invalid, orphans)

I would like to download (and access) as much blocks as possible - including stale (extinct) blocks, orphans blocks and invalid blocks. I have 0.11 official client. My node is already synchronized but ...
2
votes
0answers
576 views

on testnet: 'transaction already in blockchain'.. but it isn't

At least I don't think so! I'm trying to create a wallet infrastructure to minimise fees, and so I've been experimenting with raw transactions. I'm quite clueless but fortunately have enough sense to ...
2
votes
0answers
366 views

JSON RPC calls for Armory wallet

I'm trying to access an armory wallet via RPCs. For instance using the procedure listreceivedbyaddress should ideally return all of the addresses in my Armory wallet. However, when I run this from my ...
2
votes
0answers
542 views

What JSON RPC commands are suitable for a multi-tenant wallet service?

I'm looking at the JSON-RPC commands available in the QT client so I can create a multi-tenant wallet service on top of it. In other words, people would sign up for my site and have the ability to ...
2
votes
0answers
309 views

API: keeping account balance positive (+knowing in advance the transaction fee)

I'm using the json API. I need to keep all the account balances positive: I call getbalance first, check if it has enough bitcoins to proceed, and then move or sendfrom. This approach causes two ...
1
vote
0answers
17 views

RPCConvertValues() call error

I'd like to call RPC programmatically, instead of using bitcoin-cli. when I call the function RPCConvertValues(), it always raise error RPCConvertValues() is defined here : https://github.com/...
1
vote
0answers
40 views

Manipulation of Bitcoin RPC with programmatically

I'd like to use Bitcoin source code(only RPC part) to manipulate with programmatically. I have bitcoind and bitcoin-cli installed in my local computer but I don't know how to write code for my ...
1
vote
0answers
44 views

TimeoutError: [WinError 10060] when trying to connect to bitcoin rpc from a pc on the same local area network

I have a laptop with win10 installed. It is now running a full bitcoin node perfectly. I am already able to make rpc requests from the laptop using python and get valid responses. The laptop is ...
1
vote
1answer
31 views

Why is getdescriptorinfo returning an error “Invalid descriptor (code -5)”

I am using Bitcoin Core bitcoin-cli with getdescriptorinfo like so: curl --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getdescriptorinfo", "params":["sh(multi(2,[3c60330a/1]...
1
vote
1answer
45 views

Electrum address syncronization

I need to periodically check the balance of a number of bitcoin addresses (a few tens or hundreds addresses). I noticed that Electrum may syncronize a thousand or more imported addresses in a matter ...
1
vote
0answers
32 views

Why do I get -4 error code from Bitcoin RPC

I'm directly dealing with Bitcoin RPC and my first step is loading wallet. At first I try to check listwallets to find the current wallet there. If not, trying to load wallet: Post body = {"method":"...
1
vote
1answer
43 views

Why can't a user import keys to the keypool for a blank wallet?

I am creating a blank wallet with the intention of adding keys to the keypool but get an error keys can only be imported to the keypool when private keys are disabled Why? It would be beneficial for ...
1
vote
0answers
62 views

Why am I getting error: “Signature must be zero for failed CHECK(MULTI)SIG operation” when using signrawtransactionwithkey

I am using descriptor based importmulti like so to import a 2 of 3 HD multisig cold storage wallet into my node: curl --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "importmulti", "...
1
vote
0answers
21 views

listreceivedbyaddress missing transactions after restore

After restoring wallet from wallet.dat balance is identical, but listreceivedbyaddress 0 do not have the transactions associated with wallet. listunspent 0 show all the transactions, but it will ...
1
vote
0answers
38 views

Access Kucoin OHLC data from API?

I need to access kucoin Open-high-low-close (OHLC) data from Kucoin API. Looking in https://docs.kucoin.com/#get-trade-histories, I deduced that to access OHLC data (for instance BTC versus USDT, ...
1
vote
0answers
76 views

where is located the implementation of getaddressutxos method of litecoin rpc

Hi I have started to play with litecoin node making queries via rpc using litecoin-cli. There are some methods that caught my attention and have something related to "addressindex" these are: ...
1
vote
1answer
35 views

Recommended way to automatically retry sending of bitcoin via JSONRPC upon failure

Sometimes when sending bitcoin out, sometimes bitcoind's JSON-RPC replies with a 500 error. I'd like to safely automatically retry, but it seems that there's not way to set a nonce to safely retry. I ...
1
vote
1answer
43 views

Why estimatesmart fee returning the same fee for diffeent blocks number?

I am trying to calculate the fee per kb using the estimatesmartfee. I had called estimatesmart fee with different type of blocks number .The fee remaing the same. estimatesmartfee(2)=...
1
vote
1answer
175 views

can not access via RPC to litecoin node

I set up a litecoin full node in AWS. I opened ports 22, 80 and 9332. Also from my laptop I cloned this project https://github.com/janoside/btc-rpc-explorer I executed on my local but unfortunately I ...
1
vote
2answers
122 views

how to set the transactions fee using the RPC call?

I am creating the web wallet for the bitcoin , I want to allow web wallet users to set the transactions fee . Is their is any rpc call available for setting the transactions fee (for setting ...
1
vote
0answers
43 views

In which file node rpc details stored in Insight-api

Bitpay insight api https://github.com/bitpay/insight-api allows blockchain epxlore functionality I cant find the files in which insight-api store the rpc details ?
1
vote
0answers
65 views

How can I set the rpc user credentials in Insight to connect to a custom node?

Bitpay has done brilliant work in creating the bitcore libraries pack. I am stuck trying to find the file in which we can add the rpc user name and password for connecting to a custom node inside the ...
1
vote
2answers
737 views

How to use electrum RPC to get address balance on windows

$ ./electrum-3.2.3.exe --testnet setconfig rpcport 7777 true $ ./electrum-3.2.3.exe --testnet setconfig rpcuser blah true $ ./electrum-3.2.3.exe --testnet setconfig rpcpassword blah true $ ./electrum-...
1
vote
1answer
453 views

RPC Command to send from multiple accounts to one account (default - “”) in same wallet

I have small amounts in multiple accounts in the same wallet. I want to send all of them to default account (usually named as ""). Is their any RPC command available for this scenario? Thanks in ...
1
vote
0answers
32 views

“label” field in the transaction list

Looking at this dev reference guide I found a returned field called label. Is this the same label specified to each key when using importmulti?
1
vote
1answer
226 views

Bitcoind Cannot assign requested address

I'm trying to run a regtest bitcoind node but I'm always receiving the following error connect() to [2a05:d01c:a35:2902:6e18:7290:ff27:e9aa]:18444 failed: Cannot assign requested address (99) ...
1
vote
1answer
327 views

Bitcoin cash - Transaction history as JSON

Is there a way/a service to retrieve all bitcoin cash transaction for a bitcoin cash address in JSON format? Like the API of blockchain.info offers for bitcoin core?