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Ethereum: JSON -RPC Call Failed – Troubleshooting Guide
As the creator of Ethereum Blockchain, you are probably not strangers for the complexity that occurs when designing and maintaining a solid and safe network. However, even the most experienced creators can face problems by integrating external services.
Recently, I was facing a problem when my Ethereum application had problems with JSON-RPC call. Specifically, the JSON_RPC_Call method failed as expected. In this article, I will look at you by doing the actions that I have taken to diagnose and solve the problem.
Question
First, let’s find out what a JSON-RPC call is. The JSON-RPC (JavaScript object request analysis) call is a standard way for developers to communicate with a blockchain network, such as Ethereum using JavaScript apps. The JSON_RPC_Call method allows you to send JSON object to the network and perform a specific operation or function.
In my case, I use the popular PHP library [PHP-eherscript] ( to interact with Ethereum. Specifically, I call the Eth_call method from the Ethereumcontract class, passing the JSON object as an argument.
Error
When trying to execute JSON_RPC_Call, I encountered an error message that stated failure:
`
Error: Failed json_rpc_call
`
At this point, it looked like a simple problem for my code or Ethereum network. However, I knew I had already configured my blockchain and JSon-RPC at the end point.
Troubleshooting steps
To solve the problem I followed the following:
1
- I reviewed this documentation to make sure I use the correct syntax and parameters.
- Check the error message
: After reviewing the error message, I noticed that he mentioned “Failed” instead of indicating the specific cause of the problem. This encouraged me to investigate further and investigate alternative solutions.
- And move on to my code. By analyzing the call chimney, I was able to identify a possible problem with the Eth_call method.
resolution
After performing these troubleshooting steps, I learned that the problem was caused by the wrong parameter passed on the Eth_call method method. Specifically, I conveyed the wrong JSON object as an argument when a different format is really expected.
To solve this problem, I updated my code to correctly transfer the JSON object, which led to the successful execution of the JSON_RPC_Call.
Conclusion
In conclusion, it can be frustrated with an error with JSON-RPC call Ethereum Blockchain. However, by performing these troubleshooting steps and carefully checking your setup, you can solve problems and continue to develop solid and safe programs.
I hope this article was helpful to solve your problem or give insight in the future. If you have more questions or worries, don’t hesitate to ask!