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Changelog for internal API (ui-api)

The API uses semantic versioning.

TL;DR: Given a version number MAJOR.MINOR.PATCH, increment the:

  • MAJOR version when you make incompatible API changes,
  • MINOR version when you add functionality in a backwards-compatible manner, and
  • PATCH version when you make backwards-compatible bug fixes.

Additional labels for pre-release and build metadata are available as extensions to the MAJOR.MINOR.PATCH format.

7.0.0

  • The message field was renamed to messages in all data signing request methods to better reflect that it's a list, not a value.
  • The storage.Put and storage.Get methods in the rule execution engine were lower-cased to storage.put and storage.get to be consistent with JavaScript call conventions.

6.0.0

Removed password from responses to operations which require them. This is for two reasons,

  • Consistency between how rulesets operate and how manual processing works. A rule can Approve but require the actual password to be stored in the clef storage. With this change, the same stored password can be used even if rulesets are not enabled, but storage is.
  • It also removes the usability-shortcut that a UI might otherwise want to implement; remembering passwords. Since we now will not require the password on every Approve, there's no need for the UI to cache it locally.
    • In a future update, we'll likely add clef_storePassword to the internal API, so the user can store it via his UI (currently only CLI works).

Affected datatypes:

  • SignTxResponse
  • SignDataResponse
  • NewAccountResponse

If clef requires a password, the OnInputRequired will be used to collect it.

5.0.0

Changed the namespace format to adhere to the legacy ethereum format: name_methodName. Changes:

  • ApproveTx -> ui_approveTx
  • ApproveSignData -> ui_approveSignData
  • ApproveExport -> removed
  • ApproveImport -> removed
  • ApproveListing -> ui_approveListing
  • ApproveNewAccount -> ui_approveNewAccount
  • ShowError -> ui_showError
  • ShowInfo -> ui_showInfo
  • OnApprovedTx -> ui_onApprovedTx
  • OnSignerStartup -> ui_onSignerStartup
  • OnInputRequired -> ui_onInputRequired

4.0.0

  • Bidirectional communication implemented, so the UI can query clef via the stdin/stdout RPC channel. Methods implemented are:

    • clef_listWallets
    • clef_listAccounts
    • clef_listWallets
    • clef_deriveAccount
    • clef_importRawKey
    • clef_openWallet
    • clef_chainId
    • clef_setChainId
    • clef_export
    • clef_import
  • The type Account was modified (the json-field type was removed), to consist of

type Account struct {
	Address common.Address `json:"address"` // Ethereum account address derived from the key
	URL     URL            `json:"url"`     // Optional resource locator within a backend
}

3.2.0

  • Make ShowError, OnApprovedTx, OnSignerStartup be json-rpc notifications:

A Notification is a Request object without an "id" member. A Request object that is a Notification signifies the Client's lack of interest in the corresponding Response object, and as such no Response object needs to be returned to the client. The Server MUST NOT reply to a Notification, including those that are within a batch request.

Notifications are not confirmable by definition, since they do not have a Response object to be returned. As such, the Client would not be aware of any errors (like e.g. "Invalid params","Internal error"

3.1.0

  • Add ContentType string to SignDataRequest to accommodate the latest EIP-191 and EIP-712 implementations.

3.0.0

  • Make use of OnInputRequired(info UserInputRequest) for obtaining master password during startup

2.1.0

  • Add OnInputRequired(info UserInputRequest) to internal API. This method is used when Clef needs user input, e.g. passwords.

The following structures are used:

UserInputRequest struct {
	Prompt     string `json:"prompt"`
	Title      string `json:"title"`
	IsPassword bool   `json:"isPassword"`
}
UserInputResponse struct {
	Text string `json:"text"`
}

2.0.0

  • Modify how call_info on a transaction is conveyed. New format:
{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "ApproveTx",
  "params": [
    {
      "transaction": {
        "from": "0x82A2A876D39022B3019932D30Cd9c97ad5616813",
        "to": "0x07a565b7ed7d7a678680a4c162885bedbb695fe0",
        "gas": "0x333",
        "gasPrice": "0x123",
        "value": "0x10",
        "nonce": "0x0",
        "data": "0x4401a6e40000000000000000000000000000000000000000000000000000000000000012",
        "input": null
      },
      "call_info": [
        {
          "type": "WARNING",
          "message": "Invalid checksum on to-address"
        },
        {
          "type": "WARNING",
          "message": "Tx contains data, but provided ABI signature could not be matched: Did not match: test (0 matches)"
        }
      ],
      "meta": {
        "remote": "127.0.0.1:54286",
        "local": "localhost:8550",
        "scheme": "HTTP/1.1"
      }
    }
  ]
}

1.2.0

  • Add OnStartup method, to provide the UI with information about what API version the signer uses (both internal and external) aswell as build-info and external api.

Example call:

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "OnSignerStartup",
  "params": [
    {
      "info": {
        "extapi_http": "http://localhost:8550",
        "extapi_ipc": null,
        "extapi_version": "2.0.0",
        "intapi_version": "1.2.0"
      }
    }
  ]
}

1.1.0

  • Add OnApproved method

1.0.0

Initial release.

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