Korrektes Handling von Geldbeträgen (JSON-RPC) – Bitcoin Wiki

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For programmers and developers interested in asking questions, submitting tutorials, providing notices, etc. about the technical aspects of Bitcoin.
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Bitcoin JSON RPC API (bitcoin-cli) in your web browser! [new launch for core 0.18.0]

Very excited to announce the all-new https://ChainQuery.com
Entirely up to date with Bitcoin Core 0.18.0 and sporting sexy new navigation, advanced search, category filtering, and a great new UI.
ChainQuery includes full documentation on all 140 Bitcoin RPCs along with the unique ability to run commands in your browser for 27 commands and growing.
Bitcoin core 0.18.0 included a significant RPC update outlined below:
New RPCs added in 0.18.0:
Updated RPC's in 0.18.0:
Deprecated RPCs in 0.18.0:
All depecated RPC's from 0.18.0 onward can be found here: https://chainquery.com/bitcoin-cli#deprecated
Check it out and let me know what you think!
submitted by CoinCadence to Bitcoin [link] [comments]

a public bitcoind connects to?

I tried to connect to rpc.blockchain.info. instructions at https://www.blockchain.com/es/api/json_rpc_api
bitcoin-cli --host=rpc.blockchain.info --port=443 --rpcuser= --rpcpassword= getinfo doesn't work
Any working sample? Thanks!
submitted by FarBother to btc [link] [comments]

PSA: SegWit changes the format of data returned by JSON-RPC API, thus making it backward-incompatible • /r/Bitcoin (North Korea)

PSA: SegWit changes the format of data returned by JSON-RPC API, thus making it backward-incompatible • /Bitcoin (North Korea) submitted by blockologist to btc [link] [comments]

Chain Query [Alpha] - A web based interface to the Bitcoin API JSON-RPC

Originally planned on holding off on releasing this until all the API commands were integrated, but with the recent large increase in transaction volume, an Alpha release with what is ready seemed appropriate.
In particular estimatefee and getmempoolinfo are now publicly available through your browser, along with 25 other API commands.
Built for the average Joe to explore Bitcoin's core API and to serve as the foundation for PHP web applications to easily communicate with bitcoin core.
When all the Bitcoin Core 0.10.2 commands are complete the whole thing will be released on GitHub as open source.
So without further ado, http://ChainQuery.com/bitcoin-api
A couple quick explanations:
To see the size and # of unconfirmed transactions in the node's bitcoin mempool:
http://chainquery.com/bitcoin-api/getmempoolinfo
To estimate the fee required to have a transaction confirm within the next "X" blocks enter the number of blocks here:
http://chainquery.com/bitcoin-api/estimatefee
To see if your transaction is in the nodes current memory pool enter the transaction ID here (for a readable result select "decoded"):
http://chainquery.com/bitcoin-api/getrawtransaction
Currently supported commands (27):
I hope you like it so far, any questions or feedback are welcome and appreciated.
submitted by CoinCadence to Bitcoin [link] [comments]

PSA: SegWit changes the format of data returned by JSON-RPC API, thus making it backward-incompatible /r/Bitcoin

PSA: SegWit changes the format of data returned by JSON-RPC API, thus making it backward-incompatible /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

libbitcoinrpc - Initial release of a C library for Bitcoin JSON-RPC API.

I am happy to say that after several weeks of writing tests and documentation, as well as hunting for memory leaks and bugs, my little home project has been released: libbitcoinrpc-0.1.0 is a standard C library for making RPCs to a Bitcoin node (Core and alike).
The library aims at providing a simple and robust API: to make a call to a listening Bitcoin server, you have to initialise four components: a client (handing the connection), a method (together with some parameters), a response holder, and an error handle; then pack them all into one bitcoinrpc_call() function that does everything for you. Next, check for errors and unpack JSON data from the server.
The rationale behind making yet another RPC library for Bitcoin is twofold:
  1. I couldn't find a well documented library only for this purpose that would be written in standard C.
  2. I believe that using RPC API is a proper way of developing your own Bitcoin software, if like me you are not an expert: instead of writing crypto code that is almost certain to contain many bugs and consensus discrepancies, you rely on the the standard Bitcoin implementation (possibly patched to suit your needs) and let it do the hard work, while all you have to have is just a stable and relatively fast interface for controlling a full node.
Anyway, I invite you to download the code, test it and send bug reports:
https://github.com/bitcoinrpc/libbitcoinrpc
Cheers!
submitted by gitmarek to Bitcoin [link] [comments]

Segregated Witness JSON-RPC API changes /r/Bitcoin

Segregated Witness JSON-RPC API changes /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

libbitcoinrpc - Initial release of a C library for Bitcoin JSON-RPC API. /r/Bitcoin

libbitcoinrpc - Initial release of a C library for Bitcoin JSON-RPC API. /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Bitcoin API reference (JSON-RPC)

submitted by cryptodev to cryptodev [link] [comments]

BCHN Now 40% Faster at Mining than ABC

BCHN Now 40% Faster at Mining than ABC submitted by blockparty_sh to btc [link] [comments]

API key for connection to BTC full node

GetBlock is a service that provides a fast and easy connection to a continuously growing list of over 20 cryptocurrencies’ nodes, including Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), among others. We support such tools like JSON-RPC, REST, and WebSockets, which facilitates direct synchronization with the blockchain.
In order to build a blockchain-based application, an individual or a company usually has to deploy and run several blockchain nodes. Now you can immediately connect your app to a blockchain, as GetBlock relieves you from running a node yourself.
In order to get started with GetBlock fill in the form on the website and get your free API key.
submitted by getblockio to btc [link] [comments]

Fast and Easy Connection to Blockchain Nodes

GetBlock is a service that provides a fast and easy connection to a continuously growing list of over 30 cryptocurrencies’ nodes, including Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), among others. We support such tools like JSON-RPC, REST, and WebSockets, which facilitates direct synchronization with the blockchain.
In order to build a blockchain-based application, an individual or a company usually has to deploy and run several blockchain nodes. Now you can immediately connect your app to a blockchain, as GetBlock relieves you from running a node yourself.
In order to get started with GetBlock fill in the form on the website and get your free API key.
submitted by getblockio to decentralization [link] [comments]

Free API key to Access the Blockchain Nodes

GetBlock is a service that provides a fast and easy connection to a continuously growing list of over 20 cryptocurrencies’ nodes, including Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), among others. We support such tools like JSON-RPC, REST, and WebSockets, which facilitates direct synchronization with the blockchain.
In order to build a blockchain-based application, an individual or a company usually has to deploy and run several blockchain nodes. Now you can immediately connect your app to a blockchain, as GetBlock relieves you from running a node yourself.
In order to get started with GetBlock fill in the form on the website and get your free API key.
submitted by getblockio to api [link] [comments]

Full node for $ETH buidlers

GetBlock is a service that provides a fast and easy connection to a continuously growing list of over 20 cryptocurrencies’ nodes, including Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), among others. We support such tools like JSON-RPC, REST, and WebSockets, which facilitates direct synchronization with the blockchain.
In order to build a blockchain-based application, an individual or a company usually has to deploy and run several blockchain nodes. Now you can immediately connect your app to a blockchain, as GetBlock relieves you from running a node yourself.
In order to get started with GetBlock fill in the form on the website and get your free API key.
submitted by getblockio to eth [link] [comments]

Free full node for ETH buidlers

GetBlock is a service that provides a fast and easy connection to a continuously growing list of over 20 cryptocurrencies’ nodes, including Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), among others. We support such tools like JSON-RPC, REST, and WebSockets, which facilitates direct synchronization with the blockchain.
In order to build a blockchain-based application, an individual or a company usually has to deploy and run several blockchain nodes. Now you can immediately connect your app to a blockchain, as GetBlock relieves you from running a node yourself.
In order to get started with GetBlock fill in the form on the website and get your free API key.
submitted by getblockio to ethdev [link] [comments]

Access to blockchain nodes of the most popular cryptocurrencies

GetBlock is a service that provides a fast and easy connection to a continuously growing list of over 30 cryptocurrencies’ nodes, including Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), among others. We support such tools like JSON-RPC, REST, and WebSockets, which facilitates direct synchronization with the blockchain.
In order to build a blockchain-based application, an individual or a company usually has to deploy and run several blockchain nodes. Now you can immediately connect your app to a blockchain, as GetBlock relieves you from running a node yourself.
In order to get started with GetBlock fill in the form on the website and get your free API key.
submitted by getblockio to CryptoCurrencies [link] [comments]

What naming convention should I use for a JSON RPC client API designed for multiple languages?

This is the documentation with the original RPC client API specification. The naming convention in the specification is camel case.
Naming conventions might differ in subtle ways for different languages (camel case vs. pascal case), but for some conventions like snake case (Python) or Swift's Fluent Usage API changing the names in the original specification might increase the cognitive load when using the API for those already familiar with the specification.
When searching for different JSON RPC APIs on GitHub, some implementations seem to take advantage of reflection to intercept method calls and pass them to RPC request "as is" so method names for that language are the same as in the original spec. If reflection is not available the names are hardcoded and are mostly the same as the spec, changing only the capitalization of letters for some languages.
Some examples:
Not using Fluent Design in Swift
https://github.com/fanquake/CoreRPC/blob/masteSources/CoreRPC/Blockchain.swift https://github.com/brunophilipe/SwiftRPC/blob/masteSwiftRPC/SwiftRPC+Requests.swift
Not using snake case in Ruby
https://github.com/sinisterchipmunk/bitcoin-client/blob/mastelib/bitcoin-client/client.rb
Changing method names to pascal case in C#
https://github.com/cryptean/bitcoinlib/blob/mastesrc/BitcoinLib/Services/RpcServices/RpcService/RpcService.cs
submitted by rraallvv to learnprogramming [link] [comments]

Full node for $ETH buidlers

GetBlock is a service that provides a fast and easy connection to a continuously growing list of over 20 cryptocurrencies’ nodes, including Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), among others. We support such tools like JSON-RPC, REST, and WebSockets, which facilitates direct synchronization with the blockchain.
In order to build a blockchain-based application, an individual or a company usually has to deploy and run several blockchain nodes. Now you can immediately connect your app to a blockchain, as GetBlock relieves you from running a node yourself.
In order to get started with GetBlock fill in the form on the website and get your free API key.
submitted by getblockio to Ether [link] [comments]

Full node for $ETH buidlers

GetBlock is a service that provides a fast and easy connection to a continuously growing list of over 20 cryptocurrencies’ nodes, including Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), among others. We support such tools like JSON-RPC, REST, and WebSockets, which facilitates direct synchronization with the blockchain.
In order to build a blockchain-based application, an individual or a company usually has to deploy and run several blockchain nodes. Now you can immediately connect your app to a blockchain, as GetBlock relieves you from running a node yourself.
In order to get started with GetBlock fill in the form on the website and get your free API key.
submitted by getblockio to ethtrader [link] [comments]

RiB Newsletter #14 – Are We Smart (Contract) Yet?

We’re seeing a bunch of interesting Rust blockchain and crypto projects, so this month the “Interesting Things” section is loaded up with news, papers, and project links.
This month, Elrond, appeared on our radar with the launch of their mainnet. Although not written in Rust, it runs Rust smart contracts on its Arwen WASM VM, which itself is based on the Rust Wasmer VM. Along with NEAR, Nervos, and Enigma (and probably others), this continues an encouraging trend of blockchains enabling smart contracts in Rust. See the “Interesting Things” section for examples of Elrond’s Rust contracts.
Rust continues to be popular for research into zero-knowledge proofs, with Microsoft releasing Spartan, a zk-SNARK system without trusted setup.
In RiB news, we published a late one-year anniversary blog post. It has some reflection on the changes to, and growth of, RiB over the last year.
The Awesome Blockchain Rust project, which is maintained by Sun under the rust-in-blockchain GitHub org, has received a stream of updates recently, and is now published as the Awesome-RiB page on rustinblockchain.org.
It’s a pretty good resource for finding blockchain-related Rust projects, with links to many of the more prominent and mature projects noted in the RiB newsletter. It could use more eyes on it though.

Project Spotlight

Each month we like to shine a light on a notable Rust blockchain project. This month that project is…
ethers.rs
ethers.rs is an Ethereum & Celo library and wallet implementation, implemented as a port of the ethers.js library to Rust.
Ethereum client programming is usually done in JavaScript with either web3.js or ethers.js, with ethers.js being the newer of the two. These clients communicate to an Ethereum node, typically via JSON-RPC (or, when in the browser, via an “injected” client provider that follows EIP-1193, like MetaMask).
ethers.rs then provides a strongly-typed alternative for writing software that interacts with the Ethereum network.
As of now it is only suited for non-browser use cases, but if you prefer hacking in Rust to JavaScript, as some of us surely do, it is worth looking into for your next Ethereum project.
The author of ethers.rs, Georgios Konstantopoulos, accepts donations to sponsor their work.
Note that there is also a Rust alternative to web3.js, rust-web3.

Interesting Things

News

Blog Posts

Papers

Projects

Podcasts and Videos


Read more: https://rustinblockchain.org/newsletters/2020-08-05-are-we-smart-contract-yet/
submitted by Aimeedeer to rust [link] [comments]

GetBlock.io is Going Live! Fee-free Access to Full Blockchain Nodes

Hello!
At GetBlock we provide connection for the most popular cryptocurrencies nodes with JSON-RPC, REST and WebSockets. There is no need to deploy a node yourself, our service allows you to connect to the blockchain via a full node without having to pay a fee.
We are constantly developing and adding new nodes, on the contrary, the connection always stays put — fast and secure 24/7. At the moment, GetBlock offers nodes of more than 20 cryptos, including Bitcoin (BTC), Ethereum (ETH), Monero (XMR), and Litecoin (LTC).
The platform is quite suitable for young entrepreneurs and beginners, as well as for crypto developers and blockchain users, for all those who have neither time nor resources to run their own full node.
To start using the node, please get your personal and free API key. Tell us about your project or why you need access to blockchain data, and we will grant you a free API key.
If you do have any further questions or partnership offers, feel free to contact us via email: [[email protected]](mailto:[email protected])
submitted by getblockio to getblockio [link] [comments]

New Ethereum Developer Course

Hey All! We've been working heads down on a new developer curriculum for the last year. We're excited to announce it's finally here.
This curriculum is composed primarily of in-browser coding tutorials and challenges (no need to install any dependencies!). It also includes videos and guides which will help you apply what you learned in your local development environment when you're done with the course.
The full course includes:
Learning JavaScript: A collection of JavaScript coding tutorials and challenges which thoroughly teach JS from scratch with the latest ECMAScript features. Networking: Writing Asynchronous Code and communicating with servers through APIs Data Structures: Building and understanding data structures that are important to blockchain programming (especially trees and linked lists) Blockchain: Understanding Bitcoin, Proof-Of-Work, Digital Signatures and building core blockchain data structures. As well as learning about Ethereum, the EVM, ethers.js, and the Ethereum Node JSON-RPC API. Smart Contracts: Our largest section! This includes 21 coding tutorials and challenges thoroughly teaching the latest Solidity version 0.6.x from the very basics. Decentralized Applications: Deploy Smart Contracts and interact with them through ethers.js. You'll have three new working decentralized applications at the end of this section which you'll be able to extend upon to build bigger projects!
You can find the full listing here: https://www.chainshot.com/curriculum
The course is available through a monthly subscription. We'll also be starting live coding classes next month for all subscribers!
We hope you'll choose to learn with us. Let us know if you have any questions/concerns. All feedback is welcome. :)
submitted by dan-nolan to ethdev [link] [comments]

Ethereum для начинающих. Geth JSON-RPC API. JSON RPC Calls with Bitcoin qt (4 of 6) Bitcoin JSON-RPC Tutorial 7 - Wallet Notify Bitcoin JSON-RPC Tutorial 1 Remote Controlling Kodi with JsonRpc

Der Original-Bitcoin-Client speichert alle Bitcoin-Beträge als 64-Bit-Ganzzahlen (Integers), wobei 1 BTC als 100.000.000 (einhundert Millionen Satoshis) verarbeitet wird. In der JSON-API werden Beträge hingehen als Gleitkommazahlen mit doppelter Präzision dargestellt, also 1 BTC als 1.00000000. Wenn du Software schreibst, die das JSON-RPC-Interface verwendet, musst du auf mögliche ... $ ./bitcoind bitcoin server starting $ ./bitcoind help #Zeigt den Hilfetext mit allen RPC-API Befehlen #z.B $ ./bitcoind getbalance 2000.00000 JSON-RPC Um mit dem Server über JSON-RPC zu kommunizieren muss eine HTTP-Authentifizierung verwendet werden und aus Sicherheitsgründen werden standardmäßig nur Verbindungen von Prozessen auf der lokalen Maschine angenommen. JSON RPC API Bitcoind compatible RPC api. My Wallet users can interact with their wallet using our JSON RPC api. It is intended to be fully compatible with the original Bitcoind RPC protocol however some method calls are not supported. No Blockchain Download - Save on bandwidth and disk space. No Need to run Bitcoind - Some VPS and shared hosting plans do not allow you to run custom processes ... btcd provides a JSON-RPC API that is fully compatible with the original bitcoind/bitcoin-qt. There are a few key differences between btcd and bitcoind as far as how RPCs are serviced: There are a few key differences between btcd and bitcoind as far as how RPCs are serviced: If you are learning the API, it is a very good idea to use the test network (run bitcoind -testnet and bitcoin-cli -testnet). JSON-RPC. Running Bitcoin with the -server argument (or running bitcoind) tells it to function as a HTTP JSON-RPC server, but Basic access authentication must be used when communicating with it, and, for security, by default, the server only accepts connections from ...

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Ethereum для начинающих. Geth JSON-RPC API.

https://ChainQuery.com/tutorials/a-brief-introduction-to-the-chain-query-bitcoin-rpc-api Take a brief tour of the features and functionality of the Chain Que... JSON RPC Calls with Bitcoin qt (4 of 6) Bitcoin JSON-RPC tutorial. Set up your bitcoin.conf file and create custom settings with bitcoind. BTC: 1NPrfWgJfkANmd1jt88A141PjhiarT8d9U how to make applications with Bitcoins. For the Love of Physics - Walter Lewin - May 16, 2011 - Duration: 1:01:26. Lectures by Walter Lewin. На этом уроке продолжаем изучать Geth и научимся использовать JSON-RPC API. https://github.com/ethereum/wiki/wiki ...

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