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diff --git a/Cargo.lock b/Cargo.lock
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1266,6 +1266,7 @@
"clap",
"comm-lib",
"derive_more",
+ "grpc_clients",
"once_cell",
"reqwest",
"serde",
diff --git a/services/backup/Cargo.toml b/services/backup/Cargo.toml
--- a/services/backup/Cargo.toml
+++ b/services/backup/Cargo.toml
@@ -20,6 +20,7 @@
"grpc_clients",
"crypto"
] }
+grpc_clients = { path = "../../shared/grpc_clients" }
once_cell = { workspace = true }
tokio = { workspace = true, features = ["rt-multi-thread", "macros"] }
tokio-stream = { workspace = true }
diff --git a/services/backup/src/error.rs b/services/backup/src/error.rs
--- a/services/backup/src/error.rs
+++ b/services/backup/src/error.rs
@@ -8,6 +8,7 @@
pub use aws_sdk_dynamodb::Error as DynamoDBError;
use comm_lib::database::Error as DBError;
use comm_lib::{auth::AuthServiceError, blob::client::BlobServiceError};
+use grpc_clients::error::Error as IdentityError;
use reqwest::StatusCode;
use tracing::{error, trace, warn};
@@ -16,9 +17,11 @@
)]
pub enum BackupError {
NoBackup,
+ NoUserID,
BlobError(BlobServiceError),
AuthError(AuthServiceError),
DB(comm_lib::database::Error),
+ IdentityError(IdentityError),
}
impl From<&BackupError> for actix_web::Error {
@@ -65,6 +68,11 @@
ErrorInternalServerError("server error")
}
},
+ BackupError::IdentityError(err) => {
+ warn!("Transient identity error occurred: {err}");
+ ErrorServiceUnavailable("please retry")
+ }
+ BackupError::NoUserID => ErrorBadRequest("bad request"),
}
}
}
diff --git a/services/backup/src/identity/mod.rs b/services/backup/src/identity/mod.rs
new file mode 100644
--- /dev/null
+++ b/services/backup/src/identity/mod.rs
@@ -0,0 +1,51 @@
+use comm_lib::crypto::siwe;
+use grpc_clients::{
+ error::Error,
+ identity::{
+ get_unauthenticated_client, protos::unauth::FindUserIdRequest,
+ protos::unauthenticated::find_user_id_request::Identifier,
+ PlatformMetadata,
+ },
+ tonic::Request,
+};
+
+use crate::config::CONFIG;
+use crate::error::BackupError;
+
+// Identity service gRPC clients require a code version and device type.
+// We can supply some placeholder values for services for the time being, since
+// this metadata is only relevant for devices.
+const PLACEHOLDER_CODE_VERSION: u64 = 0;
+const DEVICE_TYPE: &str = "service";
+
+/// Returns `userID` for both Password and Wallet users.
+pub async fn find_user_id(
+ public_user_identifier: &str,
+) -> Result<String, BackupError> {
+ let mut grpc_client = get_unauthenticated_client(
+ &CONFIG.identity_endpoint,
+ PlatformMetadata::new(PLACEHOLDER_CODE_VERSION, DEVICE_TYPE),
+ )
+ .await?;
+
+ let identifier = if siwe::is_valid_ethereum_address(public_user_identifier) {
+ Identifier::WalletAddress(public_user_identifier.to_string())
+ } else {
+ Identifier::Username(public_user_identifier.to_string())
+ };
+
+ let request = FindUserIdRequest {
+ identifier: Some(identifier),
+ };
+ let request = Request::new(request);
+ let response = grpc_client
+ .find_user_id(request)
+ .await
+ .map_err(Error::GrpcStatus)?
+ .into_inner();
+
+ match response.user_id {
+ Some(user_id) => Ok(user_id),
+ None => Err(BackupError::NoUserID),
+ }
+}
diff --git a/services/backup/src/main.rs b/services/backup/src/main.rs
--- a/services/backup/src/main.rs
+++ b/services/backup/src/main.rs
@@ -8,6 +8,7 @@
pub mod database;
pub mod error;
pub mod http;
+pub mod identity;
// re-export this to be available as crate::CONFIG
pub use config::CONFIG;

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