Adjusted RPC http requests to use POST instead of GET

[monty-sei]

RPC calls for the EVM CLI were attempting to send methods via GET instead of POST, resulting in failed extraction of results from the associated RPC calls as none were being returned.

Adjustments to getChainId(), getNonce() and CmdAssociateAddress() were made

NOTE: the latter CmdAssociateAddress had an internal cmd method call to sei_associate using GET instead of POST.

Fixes REL-107

[github-actions]

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Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	✅ passed	✅ passed	✅ passed	Jan 12, 2026, 10:03 AM

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 43.81%. Comparing base (14f8cf3) to head (767df69).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
x/evm/client/cli/tx.go	66.66%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2675   +/-   ##
=======================================
  Coverage   43.80%   43.81%           
=======================================
  Files        1907     1907           
  Lines      158902   158902           
=======================================
+ Hits        69613    69628   +15     
+ Misses      82899    82877   -22     
- Partials     6390     6397    +7     

Flag	Coverage Δ
sei-chain	45.87% <66.66%> (+0.02%)	⬆️
sei-cosmos	38.20% <ø> (-0.01%)	⬇️
sei-db	69.43% <ø> (ø)
sei-tendermint	47.33% <ø> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
x/evm/client/cli/tx.go	4.69% <66.66%> (+4.69%)	⬆️

... and 10 files with indirect coverage changes

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[monty-sei]

@masih @sei-will just on the PR above, I noticed CMD CmdAssociateAddress was running an RPC call via GET as well, which would result in an incorrect response. Now the actual CMD doesn't use the response other than printing out the result, so no errors would actually occur. I've adjusted this to use POST to remove incorrect logic, but let me know your thoughts on this as the actual method call sei_associate and the association functionality is one I'm not familiar with yet

[masih]

Left a set of suggestions. Specifically, having tests depend on remote endpoint by default is the one blocker.

Thanks for getting this sorted @monty-sei 🍻

[masih]

No blockers, left some suggestions. Nice work @monty-sei

Also please feel free to resolve the review comments that are fixed directly without replies 👍

[monty-sei]

@masih does the team prefer to run rebases or merges for outdated branches? I'm a big fan of rebasing vs merge but wanted to check first!

[masih]

does the team prefer to run rebases or merges for outdated branches? I'm a big fan of rebasing vs merge but wanted to check first!

Squash merge only I'm afraid. I also am an advocate for rebase but that works well when almost all PRs have a single commit with a clear message.

[github-actions]

Successfully created backport PR for release/v6.3:

• Backport release/v6.3: Adjusted RPC http requests to use POST instead of GET #2687