Jędrzej Stuczyński
55502d210c
so that one wishing to implement that trait wouldnt be forced to use predefined error enum, especially since it relies on sqlx
42 lines
1.4 KiB
Rust
42 lines
1.4 KiB
Rust
// Copyright 2022 - Nym Technologies SA <contact@nymtech.net>
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// SPDX-License-Identifier: Apache-2.0
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use crate::models::CoconutCredential;
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use async_trait::async_trait;
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use std::error::Error;
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#[async_trait]
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pub trait Storage: Send + Sync {
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type StorageError: Error;
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/// Inserts provided signature into the database.
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///
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/// # Arguments
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///
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/// * `voucher_value`: How much bandwidth is in the credential.
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/// * `voucher_info`: What type of credential it is.
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/// * `serial_number`: Serial number of the credential.
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/// * `binding_number`: Binding number of the credential.
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/// * `signature`: Coconut credential in the form of a signature.
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/// * `epoch_id`: The epoch when it was signed.
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async fn insert_coconut_credential(
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&self,
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voucher_value: String,
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voucher_info: String,
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serial_number: String,
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binding_number: String,
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signature: String,
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epoch_id: String,
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) -> Result<(), Self::StorageError>;
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/// Tries to retrieve one of the stored, unused credentials.
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async fn get_next_coconut_credential(&self) -> Result<CoconutCredential, Self::StorageError>;
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/// Marks as consumed in the database the specified credential.
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///
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/// # Arguments
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///
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/// * `id`: Id of the credential to be consumed.
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async fn consume_coconut_credential(&self, id: i64) -> Result<(), Self::StorageError>;
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}
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