To convert a .NET Standard 2.0 C# library to .NET 7, you need to change the <TargetFramework> to be like this: <TargetFramework>net7.0</TargetFramework>¹. You also need to update all Nuget packages in the project to match the .NET Core 7 version². If you need to support an earlier version, it is recommend to target .NET… Read More »
If you installed Node.js using Visual Studio then it might be unclear how to update it to latest version. It is quite possible that some thirdpary project might need newer verion than the installed one. There are a few ways to upgrade Node.js on Windows to the latest version. One of them is to download… Read More »
To fetch JSON API response from web and deserialize it to class in C# (NET 6 / 7), next steps are needed: – Use the HttpClient class to send HTTP requests and receive HTTP responses³. – Use the JsonSerializer class to deserialize JSON into objects²³. – Create a class with properties that match the JSON properties you… Read More »
To call an async method in a sync method in C#, you have a few options: – You can use the GetAwaiter().GetResult() method to block the calling thread until the async method completes and returns the result¹⁴. – You can use the Wait() or Result property of the Task object returned by the async method to… Read More »
In previous post Consuming json API in C# application we created classes vor deserializing web api json data. By default created class properties are with same name as json elements. To deserialize JSON using different property names in C#, you have a few options: – You can use the JsonPropertyName attribute to specify the JSON… Read More »
In next posts we will create little app what will use public web api data and show it on screen. First task is to create classes what correspond to json data web api is returning. There are several ways to create C# classes from JSON API response in Visual Studio. One of them is to… Read More »
A Bitcoin Transaction is composed of the following: Version (4 Bytes) TxIn Count (1 ~ 9B) For each TxIn: Outpoint (36B) Script Length (1 ~ 9B) ScriptSig(?) Sequence (4B) TxOut Count (1 ~ 9B) For each TxOut: Value (8B) Script Length(1 ~ 9B)* Script (?)* LockTime (4B) Assuming a standard P2SH/P2PKH transaction is created,… Read More »
In previous post we added second signer node to our private blockchain Adding Signer Node to Private Ethereum Network This time we will remove first node from blockchain. Those two steps can be considered as blockchain migration from one server to another. It is quite simple, execute in geth console for both nodes command
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clique.propose("0x2C80fc7FAE05Ec4daCC44465fa0a9989C3147bA1", false) |
The… Read More »
Last time topic was Adding Another Node to Private Ethereum Network now we will have look how to add Sealer in Proof of Authority chain. Sealer on a PoA is like a miner on PoW. You can start a sealer with geth –mine –unlock “0xa132432bf” with a genesis using the clique consensus. The initial sealers… Read More »
This article is a continuation of the article Private Proof-of-Authority Ethereum Network on Synology NAS Here we describe how to add another node to our private Ethereum development blockchain. Keep in mind that it is private and development platform, so for public node all security requirements may not be met. In previous article we already did… Read More »