cashurpc

.env.mint.example

@@ -7,7 +7,7 @@ MINT_DERIVATION_PATH="0/0/0"
 MINT_NAME="a cashu mint"
 MINT_DESCRIPTION="short mint description"
 MINT_DESCRIPTION_LONG="a long description of the mint"
-MINT_CONTACT_INFO=[["email", "contact@me.com"], ["nostr", "npub..."]]
+MINT_CONTACT_INFO=[{"type":2, "info":"npub...."},{"type":0, "info":"contact@me.com"}]
 MINT_MOTD="message to the users of the mint"
 
 # Lightning Backend

.env.wallet.example

@@ -1,4 +0,0 @@
-# mint to connect to
-MINT_HOST=127.0.0.1
-MINT_PORT=3338
-#MINT_URL=http://localhost:3338

cashu/cashu.go

@@ -3,76 +3,31 @@
 package cashu
 
 import (
+	cashurpc "buf.build/gen/go/cashu/rpc/protocolbuffers/go"
 	"encoding/base64"
 	"encoding/json"
 	"errors"
 	"fmt"
 )
 
-// Cashu BlindedMessage. See https://github.com/cashubtc/nuts/blob/main/00.md#blindedmessage
-type BlindedMessage struct {
-	Amount uint64 `json:"amount"`
-	B_     string `json:"B_"`
-	Id     string `json:"id"`
+type BlindedMessages []*cashurpc.BlindedMessage
 
-	// including Witness field for now to avoid throwing error when parsing json
-	// from clients that include this field even when mint does not support it.
-	Witness string `json:"witness,omitempty"`
-}
-
-type BlindedMessages []BlindedMessage
-
-// Cashu BlindedSignature. See https://github.com/cashubtc/nuts/blob/main/00.md#blindsignature
-type BlindedSignature struct {
-	Amount uint64 `json:"amount"`
-	C_     string `json:"C_"`
-	Id     string `json:"id"`
-}
-
-type BlindedSignatures []BlindedSignature
-
-// Cashu Proof. See https://github.com/cashubtc/nuts/blob/main/00.md#proof
-type Proof struct {
-	Amount uint64 `json:"amount"`
-	Id     string `json:"id"`
-	Secret string `json:"secret"`
-	C      string `json:"C"`
+type BlindedSignatures []*cashurpc.BlindedSignature
 
-	// including Witness field for now to avoid throwing error when parsing json
-	// from clients that include this field even when mint does not support it.
-	Witness string `json:"witness,omitempty"`
-}
-
-type Proofs []Proof
-
-// Amount returns the total amount from
-// the array of Proof
-func (proofs Proofs) Amount() uint64 {
+func Amount(proofs []*cashurpc.Proof) uint64 {
 	var totalAmount uint64 = 0
 	for _, proof := range proofs {
 		totalAmount += proof.Amount
 	}
 	return totalAmount
 }
 
-// Cashu token. See https://github.com/cashubtc/nuts/blob/main/00.md#token-format
-type Token struct {
-	Token []TokenProof `json:"token"`
-	Unit  string       `json:"unit"`
-	Memo  string       `json:"memo,omitempty"`
-}
-
-type TokenProof struct {
-	Mint   string `json:"mint"`
-	Proofs Proofs `json:"proofs"`
-}
-
-func NewToken(proofs Proofs, mint string, unit string) Token {
-	tokenProof := TokenProof{Mint: mint, Proofs: proofs}
-	return Token{Token: []TokenProof{tokenProof}, Unit: unit}
+func NewToken(proofs []*cashurpc.Proof, mint string, unit string) cashurpc.TokenV3 {
+	tokenProof := cashurpc.BaseToken{Mint: mint, Proofs: proofs}
+	return cashurpc.TokenV3{Token: []*cashurpc.BaseToken{&tokenProof}, Unit: unit}
 }
 
-func DecodeToken(tokenstr string) (*Token, error) {
+func DecodeToken(tokenstr string) (*cashurpc.TokenV3, error) {
 	prefixVersion := tokenstr[:6]
 	base64Token := tokenstr[6:]
 	if prefixVersion != "cashuA" {
@@ -89,7 +44,7 @@ func DecodeToken(tokenstr string) (*Token, error) {
 		}
 	}
 
-	var token Token
+	var token cashurpc.TokenV3
 	err = json.Unmarshal(tokenBytes, &token)
 	if err != nil {
 		return nil, fmt.Errorf("error unmarshaling token: %v", err)
@@ -98,29 +53,6 @@ func DecodeToken(tokenstr string) (*Token, error) {
 	return &token, nil
 }
 
-// ToString serializes the token to a string
-func (t *Token) ToString() string {
-	jsonBytes, err := json.Marshal(t)
-	if err != nil {
-		panic(err)
-	}
-
-	token := base64.URLEncoding.EncodeToString(jsonBytes)
-	return "cashuA" + token
-}
-
-// TotalAmount returns the total amount
-// from the array of Proofs in the token
-func (t *Token) TotalAmount() uint64 {
-	var totalAmount uint64 = 0
-	for _, tokenProof := range t.Token {
-		for _, proof := range tokenProof.Proofs {
-			totalAmount += proof.Amount
-		}
-	}
-	return totalAmount
-}
-
 type CashuErrCode int
 
 // Error represents an error to be returned by the mint