Interact with intelligent contracts in the metamask network
Metamask, a popular Wallet and DAPP based on Ethereum, allows users to interact with intelligent contracts with the extension of the Metamask browser. In this article, we explore how others can interact with an intelligent agreement in the Metamk network.
How Metamask allows the intelligent contract interaction
When he lives in an intelligent contract in the Ethereum Testnet or Mainnet program, he will be publicly available through a single direction and ABI (abstract binary interface), which recognizes its functionality. MetamSk gives users the opportunity to install the extension of the Metamask browser, which can interact with different methods with the contract.
Methods with agreement to interact
- Web 3
SUPPLIER
METAMASK offers a web3 service provider, also known as the Ethereum Services Supplier, which connects to the Ethereum Testnet or Mainnet program. You can use this service provider to call your contract activities and implement events. To interact with the agreement with the web3 services provider:
`JavaScript
Const a provider = new Metamaskprovider ('
Constr.methods.create (entrance) .call (service provider);
Replace‘https: // reputation.infura.io/v3/your_project_id’ID of the Infura Project and" entry' is the value of the DAPP feeding field.
- METAMASK API
MetamSk also offers an rest application connection that can interact with the agreement with HTTP applications. You can use the Metamk application subscription to call your contract:
JavaScript
Const url = '
Constr.methods.create (entrance) .call ({{
Subditor: '0x Account address',
Gasprice: '1 GWEI', // or other gas price options
Maxgaslimit: '20000000' // or other maximum gas restrictions
});
Replace your "'' Account address 'of the user's address that you want to perform the event, and the heat of gas' and 'Maxgaslimit' are optional parameters that determine the price and maximum gas price accordingly.
SECURITY ASPECTS
Once interacts with the Metamkan agreement, it is necessary to follow the best secure coding practices:
- Use safe passwords or access keys for authentication.
- Maintain confidential information, such as private keys and account addresses, confidential.
- Ensure the identity of users who interact with their contract with authentication mechanisms, such as EIP-4-based certification.
conclusion
Metamk allows others to interact with an intelligent contract with the Metamask Network by providing a web3 service provider, a subscription of applications and many other tools. Following the best practices for safe coding, you can ensure that your contract remains safe while users can perform events and use their functionality with the help of metams.
Example code
Here is an example of interaction with the agreement with the help of a web3 service provider:
JavaScript
Const a provider = new Metamaskprovider ('
Constr.methods.create (entrance) .call (service provider);
This code is connected to the mapping, invites the "creation" feature of the agreement with the value of the DAPP Feed field and performs the event using the web3 service provider.
Remember to replace‘https: // reputation.infura.io/v3/your_project_id’` inf up with your id and adjust the code according to a specific use case.
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