fedimint_mint_server/
db.rs

1use fedimint_core::encoding::{Decodable, Encodable};
2use fedimint_core::{impl_db_lookup, impl_db_record, Amount, OutPoint};
3use fedimint_mint_common::{BlindNonce, MintOutputOutcome, Nonce};
4use serde::Serialize;
5use strum_macros::EnumIter;
6
7#[repr(u8)]
8#[derive(Clone, EnumIter, Debug)]
9pub enum DbKeyPrefix {
10    NoteNonce = 0x10,
11    OutputOutcome = 0x13,
12    MintAuditItem = 0x14,
13    // 0x15 was previously used for e-cash backups, but removed in DB migration 1
14    BlindNonce = 0x16,
15}
16
17impl std::fmt::Display for DbKeyPrefix {
18    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
19        write!(f, "{self:?}")
20    }
21}
22
23/// Index for all the spent e-cash note nonces to prevent double spends.
24/// **Extremely safety critical!**
25#[derive(Debug, Clone, Encodable, Decodable, Eq, PartialEq, Hash, Serialize)]
26pub struct NonceKey(pub Nonce);
27
28#[derive(Debug, Encodable, Decodable)]
29pub struct NonceKeyPrefix;
30
31impl_db_record!(
32    key = NonceKey,
33    value = (),
34    db_prefix = DbKeyPrefix::NoteNonce,
35);
36impl_db_lookup!(key = NonceKey, query_prefix = NonceKeyPrefix);
37
38/// Index for all the previously used blind nonces. Just a safety net for
39/// clients to not accidentally burn money.
40#[derive(Debug, Encodable, Decodable, Serialize)]
41pub struct BlindNonceKey(pub BlindNonce);
42
43#[derive(Debug, Encodable, Decodable)]
44pub struct BlindNonceKeyPrefix;
45
46impl_db_record!(
47    key = BlindNonceKey,
48    value = (),
49    db_prefix = DbKeyPrefix::BlindNonce,
50);
51impl_db_lookup!(key = BlindNonceKey, query_prefix = BlindNonceKeyPrefix);
52
53/// Transaction id and output index identifying an output outcome
54#[derive(Debug, Clone, Copy, Encodable, Decodable, Serialize)]
55pub struct MintOutputOutcomeKey(pub OutPoint);
56
57#[derive(Debug, Encodable, Decodable)]
58pub struct MintOutputOutcomePrefix;
59
60impl_db_record!(
61    key = MintOutputOutcomeKey,
62    value = MintOutputOutcome,
63    db_prefix = DbKeyPrefix::OutputOutcome,
64);
65impl_db_lookup!(
66    key = MintOutputOutcomeKey,
67    query_prefix = MintOutputOutcomePrefix
68);
69
70/// Represents the amounts of issued (signed) and redeemed (verified) notes for
71/// auditing
72#[derive(Debug, Clone, Encodable, Decodable, Serialize)]
73pub enum MintAuditItemKey {
74    Issuance(OutPoint),
75    IssuanceTotal,
76    Redemption(NonceKey),
77    RedemptionTotal,
78}
79
80#[derive(Debug, Encodable, Decodable)]
81pub struct MintAuditItemKeyPrefix;
82
83impl_db_record!(
84    key = MintAuditItemKey,
85    value = Amount,
86    db_prefix = DbKeyPrefix::MintAuditItem,
87);
88impl_db_lookup!(
89    key = MintAuditItemKey,
90    query_prefix = MintAuditItemKeyPrefix
91);
fedimint_mint_server/db.rs

fedimint_mint_server/
db.rs
