Nethereum | Ethereum .Net cross platform integration library | Blockchain library
kandi X-RAY | Nethereum Summary
kandi X-RAY | Nethereum Summary
Nethereum is the .Net integration library for Ethereum, simplifying the access and smart contract interaction with Ethereum nodes both public or permissioned like Geth, Parity or Quorum. Nethereum is developed targeting netstandard 1.1, netstandard 2.0, netcore 2.1, netcore 3.1, net451 and also as a portable library, hence it is compatible with all the operating systems (Windows, Linux, MacOS, Android and OSX) and has been tested on cloud, mobile, desktop, Xbox, hololens and windows IoT.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Nethereum
Nethereum Key Features
Nethereum Examples and Code Snippets
Lines of Code : 6
License : No License
Copydotnet add package Nethereum.Signer
using Nethereum.Signer;
using Nethereum.Signer.Crypto;
using Nethereum.Util;
using Nethereum.Hex.HexConvertors.Extensions;
Org.BouncyCastle.Math.EC.ECPoint p = …;
Community Discussions
Trending Discussions on Nethereum
QUESTION
Im using Nethereum on my server to sign a message as follows:
...ANSWER
Answered 2022-Mar-31 at 19:48This is how I got it to work
QUESTION
I'm developing a web application with Blazor WebAssembly. I want to call some functions in my token's contract. I've installed Nethereum.Web nuget package to my project. But I don't want to call a contract from Ethereum Mainnet, it has to be Binance Smart Chain. Can anyone help me?
...ANSWER
Answered 2022-Jan-09 at 10:30Yes. You just need to connect to a Binance Smart Chain node instead of Ethereum node. All the other code is just the same.
QUESTION
I started the local Hardhat network (for testing smart contracts), connected to it using Nethereum, and when I try to start any transaction, the exception ChainId required for TransactionType 0X02 EIP1559 is thrown. Then I changed the network to Ganache, but the error remained the same. For example (F# code):
ANSWER
Answered 2021-Dec-28 at 07:49The solution is pretty simple: I needed to specify the ChainId when creating an account. For Hardhat, this value is 31337.
QUESTION
I've got a .Net Core project from one of my colleague that has been managed by .Net SDK 5 and VS Code. But now I want to manage it in Visual Studio 2019, as it is easier to navigate codes and run/debug project. I could open the project folder, by choosing File/Open/Folder... and select the project folder in VS 2019. But when I try to run it by click run button in the tool bar as below, I get the alert box as below next. I clicked this run button to run project Build failed alert message
And here is the build output.
...ANSWER
Answered 2021-Sep-24 at 03:26there could be two issues
- missing SDK, you can check SDK version using
QUESTION
I am using Nethereum to call a function called owner() in a BSC contract, which should return the contract owner's address, however when I use the CallAsync() method, I get an exception "No connection could be made because the target machine actively refused it"
My code (simplified):
...ANSWER
Answered 2021-Jun-27 at 15:28My problem turned out to be that I had initialised the Web3() with no parameters, so it defaults to using localhost as the RPC client. I fixed it by initialising it with the RPC client url that I needed, in this case:
QUESTION
I can access a Blockchain Service based on Quorum, and I'm using Nethereum Library to interact with Smart Contract.
When I deploy a new Smart Contract, Nethereum gives the address and the ABI of SmartContract.
But I can't access the ABI of SmartContract without deploying the process. How can I get ABI based on the address of Smart Contract?
...ANSWER
Answered 2021-May-20 at 08:50You can get ABI JSON during compilation of the contract source code. The inputs for compilation are source code and few other values (such as optimizer settings)... The outputs include the ABI JSON and bytecode... So you don't really need to deploy the contract to get the json, just compile it (without deployment).
It's not possible to get ABI JSON purely from a bytecode (or an address that contains just the bytecode).
If the contract has source code published, you can compile the source code to get the ABI JSON.
If if doesn't have the source code published, it's also possible that the contract implements some standard (e.g. ERC-20). If you know whether and what standard it implements, you can use a general ABI JSON that reflects on this standard (e.g. this is ABI JSON of a ERC-20 standard). However, it does not reflect any functions that the contract might have used to extend the standard-defined minimum.
QUESTION
I am currently working on a project where I am developing a class library that later on will be uploaded as a nugget package, such that if a user creates a.NET Core application, she/he can download the nugget package and use it accordingly.
Essentially within the class library, Entity Framework, Nethereum and other packages are installed as dependencies. One of my goals is not to require users to add Entity Framework to their application (since the nugget package (, i.e. the class library I am building)) already has it installed. For that reason, there is a DbContext that accepts the database connection string in the class library and builds the options.
...ANSWER
Answered 2021-May-02 at 05:15Since you wanted the alternative response you can use Extension methods
in your library add the following code
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