Infura is an API service provider for Ethereum and IPFS. At first, Infura only provided stable and reliable RPC access for ConsenSys internal projects. Later, with the ecological development of Ethereum, they realized that they could play a greater role and began to provide public API services for developers.
This paper combs the realization of obtaining the current configuration chain ID of Ethereum by using Infura API.
Official document of Infura API: https://infura.io/docs
You need to apply for a project ID to use the API, and the project ID is free. The application process is "registration-login-new project", which can be completed in a few minutes without review.
Infura API standard request port format:
In this example, we use HTTP:
Infura API obtains the current configuration chain ID of Ethereum:
Example of curl:
Example of Node.js:
Example of JSON returned:
Returns a large integer of the current chain ID.
Infura API service mind map:
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