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Parameters
none
Response
string
— a string identifying the type of client, version, operating system, and language version running on the node
web3_clientVersion
code examples
Use case
A use case for theweb3_clientVersion
method can be to verify which client version is running to then decide which function to call.
Let’s say you have a DApp that needs to call a different function based on the client’s version. You can use web3_clientVersion
to build this logic.
Here is an implementation of this use case using web3.js:
index.js
NODE_URL
variable and retrieves the client version using the web3_clientVersion
method. It then runs different functions based on the client version by defining two functions runFunction1
and runFunction2
, and using an if statement to check the client version and call the appropriate function.
The getClientVersion
function extends the Web3 library with a custom method getClientVersion
, which calls the web3_clientVersion
method and returns the result. This function is called within the runBasedOnClientVersion
function to retrieve the client version.
Overall, this code demonstrates how to retrieve the client version on a blockchain node using the web3.js library and how to use the client version to run different functions based on the version. The code can be modified to add additional functions and version checks or to perform other actions based on the client version.Body
application/json