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Metamask error: impossible to use the window.elereum in corner
When designing a program based on Ethereum, one of the most important libraries for interaction with Ethereum Blockchain is Metamk. However, using corner developers, they often face an error that interferes with their progress: not being able to use the window. In this article, we will enter what causes this problem and provide a step phase solution to how to solve it.
Problem
Metamk, created by Coinbase, is a popular extension of the Ethereum portfolio browser. This allows users to interact with the blockchain without leaving the web browser. To integrate Metamask with a corner program, the developers rely on Window.ereum, which allows Ethereum to program the blockchain.
However, with Angular, this approach often collapses due to compatibility problems or safety problems. The reason lies in the way in which different systems and bookstores interact with the browser environment. First of all, the corner injection system and the use of « window » variables can lead to conflicts with the implementation of the metamask.
Solution
To solve this problem, we must change the way we reach the window. A solution is to create an optional supplier compatible with the functionality of the Metamask. This approach includes the creation of a separate service or module that guarantees the interaction of safe and safe angular applications with Ethereum.
Here is an example of implementation:
`Dictiloscript
Import {injections} from ‘@angular/core’;
Imported {Ether} from Ether;
@Injectable ({{{{{{
Provided: « root »
})
Export the MetamkProvider class {
Private EleumProsters = New MetamasaskinPagePreger ();
CONSTRUTOR () {
This.ethereumPrier.init ();
}
Get Ethereum (): Ethers.web3 {
return it.thereumprovider;
}
}
`
Using @inore decorator and creation of a personalized provider, we can safely access Windows.ethereum without compatibility problems.
angular configuration
To use MetamaskProvider, you need to configure the angular to recognize the optional provider:
Dictiloscript
Import {ngmodula} from ‘@angular/core’;
Import {metamkprovider} from ‘
@NGModule ({{{{{{{
Provider: [
{
Send « MetaminPageProPrier »,
U.Seclass: MetamkProvider
}
«
})
Export the « Appmodule {} » class
``
Conclusion
By understanding the main problems and by implementing a personalized solution, the developers can overcome the « window.ereum » error when using a « metamask » corner. This approach not only solves the problem of compatibility, but it also gives you a safer way to interact with the Ethereum locking circuit.
Remember to always follow the best practices of the web programs, including the latest security measures and browser extensions to be updated continuously. Happy code!
