The `/cosmos/tx/v1beta1/txs/{hash}` endpoint should return a 404 error if no tx is found for the given hash

[zenit70]

Summary of Bug

The /cosmos/tx/v1beta1/txs/{hash} endpoint should return a 404 error if no transaction is found for the given hash. At the moment the API returns a 400 bad request error.

Version

Cosmos SDK v0.42.6 (Gaia v5.0.2 / cosmoshub-4)

Steps to Reproduce

curl -v "https://api.cosmos.network/cosmos/tx/v1beta1/txs/29049BC678EECAB036E5B2FCCB2148837B118F903591713257DE1F720143F2FA"

Similar issue

#3639

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[tac0turtle]

thank you for opening this issue, makes sense. Would you like to open a pr with this fix?

[zenit70]

Sorry, but I am a frontend developer. If there is no one who can provide the fix for this issue, I'll possibly ask to a developer on my team.