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## Description
Closes: #10691
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## Description
Closes: #10443
For creating an intermediary/auxiliary tx (e.g. by the tipper in tipped transactions), using the existing `client.TxBuilder` is awkward. We propose a new client-side builder for this purpose.
API Usage (e.g. how the tipper would programmtically use this):
```go
// Note: there's no need to use clientCtx.TxConfig anymore!
bldr := clienttx.NewAuxTxBuilder()
err := bldr.SetMsgs(msgs...)
bldr.SetAddress("cosmos1...")
bldr.SetMemo(...)
bldr.SetTip(...)
bldr.SetPubKey(...)
err := bldr.SetSignMode(...) // DIRECT_AUX or AMINO, or else error
// ... other setters are available
// Get the bytes to sign.
signBz, err := bldr.GetSignBytes()
// Sign the bz using your favorite method.
sig, err := privKey.sign(signBz)
// Set the signature
bldr.SetSig(sig)
// Get the final auxSignerData to be sent to the fee payer
auxSignerData, err:= bldr.GetAuxSignerData()
```
auxSignerData is a protobuf message, whose JSON reprensentation looks like:
```json
{
"address": "cosmos1...",
"mode": "SIGN_MODE_{DIRECT_AUX,LEGACY_AMINO_JSON}",
"sign_doc": {
"body_bytes": "{base64 bytes}",
"public_key": {
"@type": "cosmos.sepc256k1.PubKey",
"key": "{base64 bytes}"
},
"chain_id": "...",
"account_number": 24,
"sequence": 42,
"tip": {
"amount": [{ "denom": "uregen", "amount": 1000 }],
"tipper": "cosmos1..."
}
},
"sig": "{base64 bytes}"
}
```
Then the fee payer would use the TxBuilder to construct the final TX, with a new helper method: `AddAuxSignerData`:
```go
// get auxSignerData from AuxTxBuilder
auxSignerData := ...
txBuilder := txConfig.NewTxBuilder()
err := txBuilder.AddAuxSignerData(auxSignerData)
// Set fee payer data
txBuilder.SetFee()
txBuilder.SetGasLimit()
txBuilder.SetFeePayer()
sigs, err := txBuilder.GetSignaturesV2()
auxSig := sigs[0] // the aux signer's signature
// Set all signer infos (1st round of calling SetSignatures)
txBuilder.SetSignatures(
auxSig, // The aux SignatureV2
signing.SignatureV2{...}, // The feePayer's SignatureV2
)
// Sign
signBz, err = encCfg.TxConfig.SignModeHandler().GetSignBytes(...)
feepayerSig, err := feepayerPriv.Sign(signBz)
// Set all signatures (2nd round of calling SetSignatures)
txBuilder.SetSignatures(
auxSig, // The aux SignatureV2
signing.SignatureV2{feepayerSig, ...}, // The feePayer's SignatureV2
)
```
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- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
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I have...
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* Add IsTipper
* Use addr in signer data
* Always populate addr in signer data
* fi error messages
* make proto gen
* fix build
* Add fields to sign docs and sign mode handler
* Remove getSequence
* Update x/auth/migrations/legacytx/stdtx.go
Co-authored-by: Simon Warta <2603011+webmaster128@users.noreply.github.com>
* Update x/auth/migrations/legacytx/stdsign.go
Co-authored-by: Simon Warta <2603011+webmaster128@users.noreply.github.com>
* Use addressCodec
* NewTxConfig with addrCdc
* REmove simapp.NewBech32
* Move bech32 stuff to x/auth/address
* Add changelog
* Move address.Codec to x/auth
* Fix test
* Add tests for tipper and feepayer
* Rename tests
* Add more tests
* Empty tip test
* Revert unwanted files
* Less line diff
* fix test
* fix another test
* Fix test
* Update x/auth/migrations/legacytx/stdtx_test.go
Co-authored-by: atheeshp <59333759+atheeshp@users.noreply.github.com>
* Address reviews
Co-authored-by: Simon Warta <2603011+webmaster128@users.noreply.github.com>
Co-authored-by: atheeshp <59333759+atheeshp@users.noreply.github.com>
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## Description
Revert #10268
As part of the TX working group, we decided not to introduce a new sign mode for tipper signing. The tipper will use amino-json to sign via ledger (see #10346).
Also, add `signing.SignerData#Address` (will be used in subsequent PR #10346)
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## Description
Closes: #8700
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are the most critical to review. -->
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I have...
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- [x] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting))
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- [x] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules)
- [x] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [x] added a changelog entry to `CHANGELOG.md`
- [x] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [x] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed
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Amaury
likhita-809
Robert Zaremba
Amaury Martiny
Alexander Bezobchuk
Aaron Craelius