sdk: remove refund message

Author: andrevmatos

raiden-ts/src/messages/types.ts

@@ -15,7 +15,6 @@ export enum MessageType {
  SECRET_REQUEST = 'SecretRequest',
  SECRET_REVEAL = 'RevealSecret',
  LOCKED_TRANSFER = 'LockedTransfer',
- REFUND_TRANSFER = 'RefundTransfer',
  UNLOCK = 'Unlock',
  LOCK_EXPIRED = 'LockExpired',
  WITHDRAW_REQUEST = 'WithdrawRequest',
@@ -118,7 +117,7 @@ export interface Metadata extends t.TypeOf<typeof _Metadata> {}
 export interface MetadataC extends t.Type<Metadata, t.OutputOf<typeof _Metadata>> {}
 export const Metadata: MetadataC = _Metadata;
 
-// base for locked and refund transfer, they differentiate only on the type tag
+// base for locked transfers, they differentiate only on the type tag
 const LockedTransferBase = t.readonly(
  t.intersection([
  t.type({
@@ -148,21 +147,6 @@ export interface LockedTransferC
  extends t.Type<LockedTransfer, t.OutputOf<typeof _LockedTransfer>> {}
 export const LockedTransfer: LockedTransferC = _LockedTransfer;
 
-// if a mediated transfer didn't succeed, mediator can refund the amount with the same secrethash
-// so the previous hop can retry it with another neighbor
-const _RefundTransfer = t.readonly(
- t.intersection([
- t.type({
- type: t.literal(MessageType.REFUND_TRANSFER),
- }),
- LockedTransferBase,
- ]),
-);
-export interface RefundTransfer extends t.TypeOf<typeof _RefundTransfer> {}
-export interface RefundTransferC
- extends t.Type<RefundTransfer, t.OutputOf<typeof _RefundTransfer>> {}
-export const RefundTransfer: RefundTransferC = _RefundTransfer;
-
 // when the secret is revealed, unlock sends a new balance proof without the lock and increasing
 // the total transfered to finish the offchain transfer
 const _Unlock = t.readonly(
@@ -326,7 +310,6 @@ const _messages = [
  SecretRequest,
  SecretReveal,
  LockedTransfer,
- RefundTransfer,
  Unlock,
  LockExpired,
  WithdrawRequest,
@@ -342,4 +325,4 @@ const messages = _messages as Mutable<typeof _messages>;
 export type Message = t.TypeOf<typeof messages[number]>;
 export interface MessageC extends t.UnionC<typeof messages> {}
 export const Message: MessageC = t.union(messages);
-export type EnvelopeMessage = LockedTransfer | RefundTransfer | Unlock | LockExpired;
+export type EnvelopeMessage = LockedTransfer | Unlock | LockExpired;

raiden-ts/src/messages/utils.ts

@@ -20,7 +20,6 @@ const CMDIDs: { readonly [T in MessageType]: number } = {
  [MessageType.SECRET_REQUEST]: 3,
  [MessageType.SECRET_REVEAL]: 11,
  [MessageType.LOCKED_TRANSFER]: 7,
- [MessageType.REFUND_TRANSFER]: 8,
  [MessageType.UNLOCK]: 4,
  [MessageType.LOCK_EXPIRED]: 13,
  [MessageType.WITHDRAW_REQUEST]: 15,
@@ -84,7 +83,6 @@ export function createBalanceHash({
 export function createMessageHash(message: EnvelopeMessage): Hash {
  switch (message.type) {
  case MessageType.LOCKED_TRANSFER:
- case MessageType.REFUND_TRANSFER:
  // hash of packed representation of the whole message
  let packed = concat([
  encode(CMDIDs[message.type], 1),
@@ -152,7 +150,6 @@ export function packMessage(message: Message) {
  ]),
  ) as HexString<12>;
  case MessageType.LOCKED_TRANSFER:
- case MessageType.REFUND_TRANSFER:
  case MessageType.UNLOCK:
  case MessageType.LOCK_EXPIRED: {
  const additionalHash = createMessageHash(message),