Proposal: Transaction Builder API — fluent createTransaction() interface

[grikomsn]

Summary

Fluent transaction builder API to simplify complex transactions and fee estimation.

Proposed API

const tx = await createTransaction()
  .from(account.bech32Address)
  .send({ amount: "1000", denom: "uatom", to: recipientAddress })
  .withMemo("Payment for services")
  .withAutoFee()
  .build();

await tx.sign().broadcast();

Motivation

• Simpler API for common operations
• Automatic fee estimation
• Transaction composition
• Better error messages

Source

Originally proposed in notes/legacy/IMPROVEMENT_DESIGN.md (Section 3).

Priority: Medium | Effort: Medium | Status: Proposed

[codingki]

Personally I don't like this pattern. remoinds me of firebase API😅