Metamask: Data not fetching from smart contract for the same code in different versions of “ethers”

Metamask Issue: Data that does not seek intelligent contract

As a developer building a DAPP real estate market with Metamask, I found an unexpected problem in which my code seeks different data from the same intelligent contract in different versions of “eetres” (5.7.2). This problem caused frustration and wasted development time.

The question: Different versions of Éters

Using Metamask to interact with a DAPP, it is essential to ensure that the Web3.Js library is compatible with various versions of Blockchain Ethereum. Specifically, we are facing problems with different “Éter” versions (5.7.2), where the same code gets intelligent contract data differently.

Code: The same logic between versions

Our DAPP uses a single JavaScript file to deal with interactions with the smart contract. The file is structured as follows:

`JavaScript

CONST Web3 = Requires (“Web3”);

CONST Web3Provider = Requires (‘Web3-Provider’);

ASSINCRONE FUNCTION MAIN () {

CONST WEB3 = New Web3 (New Web3Provider ());

// Replace this comment with your real logic to interact with the intelligent contract

CONST PROPERTYDATA = Web3.eth.Call (0x ... Property_address, [” Get_Property_Data “]);

// Save or process the data as needed

console.log (Propertydata);

}

`

The problem: different versions of etero

When we perform this code, different versions of “Éter” (5.7.2) produce different results for the same property data. For example:

• In version 5.7.0, the get_property_data function returns an object with a specific set of properties.

• In version 5.7.1, the get_property_data function returns an empty matrix.

A Solution: Update Web3.js and Provider

To solve this problem, we need to update our library and web provider3.js to ensure compatibility in different Blockchain Ethereum versions. Here is a step -by -step solution:

• Update Web3.JS : Update the Web3 package to version 4.x.x, which is compatible with the latest versions of Ethereum Blockchain.

`Bash

NPM Install Web3@4.x.x

`

• Update Provider : Update the “Ethers” provider for version 5.x.x, which supports the latest versions of Ethereum Blockchain.

`

NPM-Force-Local Update Ethers.JS

`

Test and implementation

After updating our code base, we need to test it and deploy it in different versions Ethereum blockchain to check if the problem has been resolved.

• Test in various eetres : our DAPP implant in various versions of Blockchain Ethereum (eg, 5.7.0, 5.7.1, 5.8.0) to ensure that the data search problem is resolved.

• Check compatibility : Check that the same logic and code produce identical results in different eetres.

Conclusion

The problem with Metamask we found was due to incompatible “eetons” versions. By updating our library and web provider3.js, we were able to solve the problem and ensure consistent data looking for various versions of Ethereum blockchain. This solution can be applied to similar problems in other DAPP development projects that require compatibility with different blockchain versions.

ethereum address multiple times