bitcoin-core | A modern Bitcoin Core REST and RPC client | REST library
kandi X-RAY | bitcoin-core Summary
kandi X-RAY | bitcoin-core Summary
A modern Bitcoin Core REST and RPC client.
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Top functions reviewed by kandi - BETA
- Enc obfuscated response body
- Convert a response to an RPC result .
- Enc obfuscate a request body
- Obtain request body
- Remove Authorization headers from the Authorization header
- Obtains the result body of a response
- Obtain the request object
- Interpolate default module
bitcoin-core Key Features
bitcoin-core Examples and Code Snippets
Community Discussions
Trending Discussions on bitcoin-core
QUESTION
Using a local blockchain, is it is possible to use the bitcoin-core rpc commands to query a block (such as the genesis block) and get a list of all the public keys used in that block? If it is possible, which commands do I need to use?
...ANSWER
Answered 2019-Oct-29 at 14:06Not entirely. This is because modern outputs contain addresses (technically scriptPubkeys) which are encoded hashes of a public key, see Types of Transactions. Hashes cannot be reversed (or Bitcoin wouldn't work at all), so in order to reveal the public key, the spender must provide it. You can extract public keys from spent outputs (via the scriptSig), but it is not straightforward. With legacy outputs, however, (as in the genesis block), this is possible without spending because they use a deprecated transaction type (Pay-To-Pubkey).
There are a few commands to use. First, get the transactions in the block:
QUESTION
I am reading the book "Mastering Bitcoin" from Antonopoulos and want to compile an example from that book. It does not tell which C++ library needs to be installed for #include to work.
So I was just wondering if bitcoin-server is maybe the wrong one. Maybe it is too large for a Rasperry Pi 2B. I am new to C++. (Compiling takes very long and I had to use an external swap file on a USB-HDD to be able to compile bitcoin-core.)
I figured to be able to compile it I have to install libbitcoin-server from here.
Is this the case?
I don't know if maybe I have to change swap settings or if there is a simpler option to use this inlcude.
...ANSWER
Answered 2019-Sep-02 at 11:12Commit 83f36c901a3f45e8ab667f1db283d72e75a58176 of the libbitcoin/libbitcoin-system repository renamed bitcoin/bitcoin.hpp to bitcoin/system.hpp.
It looks like you can just install it with the typical "./autogen.sh;configure;make;make install" steps. After that you can either create a copy of bitcoin/system.hpp or adapt your client code.
QUESTION
I'm writing a code in RUST to query data from bitcoin-core using JSON-RPC. I'm using this curl-rust, but no output is being shown on running cargo run.
ANSWER
Answered 2019-Aug-28 at 13:07You're missing write_function call. An example:
QUESTION
As I understand bitcoinj library contains wrapper for bitcoin-core functions - NativeSecp256k1. I am trying to call one of methods from this wrapper:
...ANSWER
Answered 2019-Jun-24 at 19:22Bitcoinj uses JNI to load a C library for secp256k1 curve operations. If the lib is imported correctly... and since you are trying to access it directly, you might be missing the System.loadLibrary('secp256k1') call
To build the compiles sources for the lib, its describes in the comment block of the NativeSecp256k1 class, here : https://github.com/bitcoinj/bitcoinj/blob/2ec193f8479425c3a66bebf5f2d3493e39e88f7c/core/src/main/java/org/bitcoin/NativeSecp256k1.java#L34
QUESTION
I'm making Hyperledger Sawtooth client prototype for iOS on Swift.
Before that, I was doing the same for Android on Java. In Java implementation it makes easy with SpongyCastle library: Function to generate keys looks like this:
...ANSWER
Answered 2018-Jun-06 at 11:03i found solution. it is BitcoinKit framework. i had some issues with installation with Carthage, but Cocoapods + installation of some missing tools found in error messages works well.
QUESTION
I'm see build error messages ("Failure: This commit cannot be built") for each commit in github, yet I'm not aware that I have automated builds set up in github.
When I click on the "x" the browser attempts to go to the following link: http://unconfigured-jenkins-location/job/testgithub/job/bitcoin-core/job/master/7/display/redirect which fails with a 404.
I have a webhook set up for heroku but it is set up for manual deployments and the last time I kicked off a deployment was prior to many of these error messages.
Update: Here's a screenshot of the webhooks that are currently configured for the project:
...ANSWER
Answered 2017-May-08 at 15:07Just discovered that there was an external Jenkins instance that was pulling code from the repo and was pushing the build status back into github (was expecting that interaction to be read-only from github's perspective).
QUESTION
I have generated master pub/priv key pairs from 24 word mnemonics for Alice.
...ANSWER
Answered 2018-Sep-25 at 21:45I did it using another library coincurve.
QUESTION
I was playing with the blochain using the python librairy 'bitcoinrpc' and bitcoin-core, however I can never read the transaction in block 9.
I even downloaded the blockchain a 2nd time thinking mine had a problem with a 2nd installation of bitcoin-core pointing to a different data directory and I still can't read block 9.
Can you reproduce this problem? Any idea why?
Script for reading and displaying block 7, 8, 9, 10 :
...ANSWER
Answered 2017-Dec-04 at 10:05The issue is most likely due to the fact that you are running bitcoind without the -txindex command line flag. Without it bitcoind will only track unspent transaction outputs and transactions that it received. The reason why the first few blocks work, is because they only contain unspent genesis outputs, i.e., newly generated coins. The transaction you are failing to parse is the first ever transaction from Satoshi to Hal Finney, which was spent, hence no longer in the index.
Try either running with -txindex or better use getblock(block_hash, 0) to get the hex serialized block and then parse it locally (e.g., with bitcoinlib), instead of using bitcoind to retrieve every single transaction. You'll be a lot faster this way.
QUESTION
I have a C project using autotools and make to build my project. I need to use code that as far as I can tell is only available on github. What is the best practice for including this code in my project? How would I do it?
...ANSWER
Answered 2018-Mar-13 at 17:30The best I can think of is to probably use Git Submodules so that you bundle your dependencies with your repository without having them to be inside your repository. This will provide you with 2 advantages, your library dependency will always be (latest), your git repository won't be bloated of all the unnecessary data and objects that the library would have brought. Make sure to build with the lib and to query the user if he does not have it on his system.
C does not have any native dependency manager.
If any tool could do something like you want and for basically anything, you could look into Conda
QUESTION
I'm trying to go through the following tutorial: https://developers.google.com/sheets/api/quickstart/nodejs#
And when I get to the step to run the quick start file node quickstart.js I get the following error message: Olivers-MacBook-Pro:incrementum oliverpike$ node quickstart.js
...ANSWER
Answered 2017-Nov-13 at 16:33Remove the file and the code will trigger an else condition to get authentication.
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