diff --git a/native/native_rust_library/Cargo.lock b/native/native_rust_library/Cargo.lock
--- a/native/native_rust_library/Cargo.lock
+++ b/native/native_rust_library/Cargo.lock
@@ -298,6 +298,7 @@
  "iana-time-zone",
  "js-sys",
  "num-traits",
+ "serde",
  "wasm-bindgen",
  "windows-targets 0.52.5",
 ]
diff --git a/services/backup/src/constants.rs b/services/backup/src/constants.rs
--- a/services/backup/src/constants.rs
+++ b/services/backup/src/constants.rs
@@ -17,20 +17,8 @@
 pub const COMM_SERVICES_USE_JSON_LOGS: &str = "COMM_SERVICES_USE_JSON_LOGS";
 
 // DynamoDB constants
-pub mod backup_table {
-  pub const TABLE_NAME: &str = "backup-service-backup";
-  pub const CREATED_INDEX: &str = "userID-created-index";
 
-  pub mod attr {
-    pub const USER_ID: &str = "userID";
-    pub const BACKUP_ID: &str = "backupID";
-    pub const CREATED: &str = "created";
-    pub const USER_DATA: &str = "userData";
-    pub const USER_KEYS: &str = "userKeys";
-    pub const ATTACHMENTS: &str = "attachments";
-    pub const SIWE_BACKUP_MSG: &str = "siweBackupMsg";
-  }
-}
+pub use comm_lib::backup::database::backup_table;
 
 pub mod log_table {
   pub const TABLE_NAME: &str = "backup-service-log";
diff --git a/services/backup/src/database/backup_item.rs b/services/backup/src/database/backup_item.rs
--- a/services/backup/src/database/backup_item.rs
+++ b/services/backup/src/database/backup_item.rs
@@ -2,181 +2,12 @@
 use aws_sdk_dynamodb::types::AttributeValue;
 use chrono::{DateTime, Utc};
 use comm_lib::{
-  blob::{client::BlobServiceClient, types::BlobInfo},
-  database::{
-    AttributeExtractor, AttributeTryInto, DBItemError, TryFromAttribute,
-  },
+  blob::types::BlobInfo,
+  database::{AttributeExtractor, DBItemError, TryFromAttribute},
 };
 use std::collections::HashMap;
 
-#[derive(Clone, Debug)]
-pub struct BackupItem {
-  pub user_id: String,
-  pub backup_id: String,
-  pub created: DateTime<Utc>,
-  pub user_keys: BlobInfo,
-  pub user_data: Option<BlobInfo>,
-  pub attachments: Vec<BlobInfo>,
-  pub siwe_backup_msg: Option<String>,
-}
-
-impl BackupItem {
-  pub fn new(
-    user_id: String,
-    backup_id: String,
-    user_keys: BlobInfo,
-    user_data: Option<BlobInfo>,
-    attachments: Vec<BlobInfo>,
-    siwe_backup_msg: Option<String>,
-  ) -> Self {
-    BackupItem {
-      user_id,
-      backup_id,
-      created: chrono::Utc::now(),
-      user_keys,
-      user_data,
-      attachments,
-      siwe_backup_msg,
-    }
-  }
-
-  pub fn revoke_user_keys_holders(&self, blob_client: &BlobServiceClient) {
-    blob_client.schedule_revoke_holder(
-      &self.user_keys.blob_hash,
-      &self.user_keys.holder,
-    );
-  }
-
-  pub fn revoke_user_data_holders(&self, blob_client: &BlobServiceClient) {
-    if let Some(user_data) = &self.user_data {
-      blob_client
-        .schedule_revoke_holder(&user_data.blob_hash, &user_data.holder);
-    }
-
-    for attachment_info in &self.attachments {
-      blob_client.schedule_revoke_holder(
-        &attachment_info.blob_hash,
-        &attachment_info.holder,
-      );
-    }
-  }
-
-  pub fn item_key(
-    user_id: &str,
-    backup_id: &str,
-  ) -> HashMap<String, AttributeValue> {
-    HashMap::from([
-      (
-        backup_table::attr::USER_ID.to_string(),
-        AttributeValue::S(user_id.to_string()),
-      ),
-      (
-        backup_table::attr::BACKUP_ID.to_string(),
-        AttributeValue::S(backup_id.to_string()),
-      ),
-    ])
-  }
-}
-
-impl From<BackupItem> for HashMap<String, AttributeValue> {
-  fn from(value: BackupItem) -> Self {
-    let mut attrs = HashMap::from([
-      (
-        backup_table::attr::USER_ID.to_string(),
-        AttributeValue::S(value.user_id),
-      ),
-      (
-        backup_table::attr::BACKUP_ID.to_string(),
-        AttributeValue::S(value.backup_id),
-      ),
-      (
-        backup_table::attr::CREATED.to_string(),
-        AttributeValue::S(value.created.to_rfc3339()),
-      ),
-      (
-        backup_table::attr::USER_KEYS.to_string(),
-        value.user_keys.into(),
-      ),
-    ]);
-
-    if let Some(user_data) = value.user_data {
-      attrs.insert(backup_table::attr::USER_DATA.to_string(), user_data.into());
-    }
-
-    if !value.attachments.is_empty() {
-      attrs.insert(
-        backup_table::attr::ATTACHMENTS.to_string(),
-        AttributeValue::L(
-          value
-            .attachments
-            .into_iter()
-            .map(AttributeValue::from)
-            .collect(),
-        ),
-      );
-    }
-
-    if let Some(siwe_backup_msg_value) = value.siwe_backup_msg {
-      attrs.insert(
-        backup_table::attr::SIWE_BACKUP_MSG.to_string(),
-        AttributeValue::S(siwe_backup_msg_value),
-      );
-    }
-    attrs
-  }
-}
-
-impl TryFrom<HashMap<String, AttributeValue>> for BackupItem {
-  type Error = DBItemError;
-
-  fn try_from(
-    mut value: HashMap<String, AttributeValue>,
-  ) -> Result<Self, Self::Error> {
-    let user_id = String::try_from_attr(
-      backup_table::attr::USER_ID,
-      value.remove(backup_table::attr::USER_ID),
-    )?;
-    let backup_id = String::try_from_attr(
-      backup_table::attr::BACKUP_ID,
-      value.remove(backup_table::attr::BACKUP_ID),
-    )?;
-    let created = DateTime::<Utc>::try_from_attr(
-      backup_table::attr::CREATED,
-      value.remove(backup_table::attr::CREATED),
-    )?;
-
-    let user_keys = BlobInfo::try_from_attr(
-      backup_table::attr::USER_KEYS,
-      value.remove(backup_table::attr::USER_KEYS),
-    )?;
-    let user_data = value
-      .remove(backup_table::attr::USER_DATA)
-      .map(|attr| {
-        BlobInfo::try_from_attr(backup_table::attr::USER_DATA, Some(attr))
-      })
-      .transpose()?;
-
-    let attachments = value.remove(backup_table::attr::ATTACHMENTS);
-    let attachments = if attachments.is_some() {
-      attachments.attr_try_into(backup_table::attr::ATTACHMENTS)?
-    } else {
-      Vec::new()
-    };
-
-    let siwe_backup_msg: Option<String> =
-      value.take_attr(backup_table::attr::SIWE_BACKUP_MSG)?;
-
-    Ok(BackupItem {
-      user_id,
-      backup_id,
-      created,
-      user_keys,
-      user_data,
-      attachments,
-      siwe_backup_msg,
-    })
-  }
-}
+pub use comm_lib::backup::database::BackupItem;
 
 /// Corresponds to the items in the [`crate::constants::BACKUP_TABLE_INDEX_USERID_CREATED`]
 /// global index
diff --git a/shared/comm-lib/Cargo.toml b/shared/comm-lib/Cargo.toml
--- a/shared/comm-lib/Cargo.toml
+++ b/shared/comm-lib/Cargo.toml
@@ -32,7 +32,7 @@
 serde = { workspace = true, features = ["derive"] }
 serde_json = { workspace = true }
 base64 = { workspace = true }
-chrono = { workspace = true }
+chrono = { workspace = true, features = ["serde"] }
 constant_time_eq = "0.3"
 derive_more = { workspace = true }
 grpc_clients = { path = "../grpc_clients", optional = true }
diff --git a/services/backup/src/database/backup_item.rs b/shared/comm-lib/src/backup/database.rs
copy from services/backup/src/database/backup_item.rs
copy to shared/comm-lib/src/backup/database.rs
--- a/services/backup/src/database/backup_item.rs
+++ b/shared/comm-lib/src/backup/database.rs
@@ -1,15 +1,34 @@
-use crate::constants::backup_table;
-use aws_sdk_dynamodb::types::AttributeValue;
 use chrono::{DateTime, Utc};
-use comm_lib::{
-  blob::{client::BlobServiceClient, types::BlobInfo},
-  database::{
-    AttributeExtractor, AttributeTryInto, DBItemError, TryFromAttribute,
-  },
-};
+use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
 
-#[derive(Clone, Debug)]
+use crate::blob::types::BlobInfo;
+
+#[cfg(feature = "blob-client")]
+use crate::blob::client::BlobServiceClient;
+#[cfg(feature = "aws")]
+use crate::database::{
+  AttributeExtractor, AttributeTryInto, DBItemError, TryFromAttribute,
+};
+#[cfg(feature = "aws")]
+use aws_sdk_dynamodb::types::AttributeValue;
+
+pub mod backup_table {
+  pub const TABLE_NAME: &str = "backup-service-backup";
+  pub const CREATED_INDEX: &str = "userID-created-index";
+
+  pub mod attr {
+    pub const USER_ID: &str = "userID";
+    pub const BACKUP_ID: &str = "backupID";
+    pub const CREATED: &str = "created";
+    pub const USER_DATA: &str = "userData";
+    pub const USER_KEYS: &str = "userKeys";
+    pub const ATTACHMENTS: &str = "attachments";
+    pub const SIWE_BACKUP_MSG: &str = "siweBackupMsg";
+  }
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct BackupItem {
   pub user_id: String,
   pub backup_id: String,
@@ -40,6 +59,7 @@
     }
   }
 
+  #[cfg(feature = "blob-client")]
   pub fn revoke_user_keys_holders(&self, blob_client: &BlobServiceClient) {
     blob_client.schedule_revoke_holder(
       &self.user_keys.blob_hash,
@@ -47,6 +67,7 @@
     );
   }
 
+  #[cfg(feature = "blob-client")]
   pub fn revoke_user_data_holders(&self, blob_client: &BlobServiceClient) {
     if let Some(user_data) = &self.user_data {
       blob_client
@@ -61,6 +82,7 @@
     }
   }
 
+  #[cfg(feature = "aws")]
   pub fn item_key(
     user_id: &str,
     backup_id: &str,
@@ -78,6 +100,7 @@
   }
 }
 
+#[cfg(feature = "aws")]
 impl From<BackupItem> for HashMap<String, AttributeValue> {
   fn from(value: BackupItem) -> Self {
     let mut attrs = HashMap::from([
@@ -126,6 +149,7 @@
   }
 }
 
+#[cfg(feature = "aws")]
 impl TryFrom<HashMap<String, AttributeValue>> for BackupItem {
   type Error = DBItemError;
 
@@ -177,51 +201,3 @@
     })
   }
 }
-
-/// Corresponds to the items in the [`crate::constants::BACKUP_TABLE_INDEX_USERID_CREATED`]
-/// global index
-#[derive(Clone, Debug)]
-pub struct OrderedBackupItem {
-  pub user_id: String,
-  pub created: DateTime<Utc>,
-  pub backup_id: String,
-  pub user_keys: BlobInfo,
-  pub siwe_backup_msg: Option<String>,
-}
-
-impl TryFrom<HashMap<String, AttributeValue>> for OrderedBackupItem {
-  type Error = DBItemError;
-
-  fn try_from(
-    mut value: HashMap<String, AttributeValue>,
-  ) -> Result<Self, Self::Error> {
-    let user_id = String::try_from_attr(
-      backup_table::attr::USER_ID,
-      value.remove(backup_table::attr::USER_ID),
-    )?;
-    let created = DateTime::<Utc>::try_from_attr(
-      backup_table::attr::CREATED,
-      value.remove(backup_table::attr::CREATED),
-    )?;
-    let backup_id = String::try_from_attr(
-      backup_table::attr::BACKUP_ID,
-      value.remove(backup_table::attr::BACKUP_ID),
-    )?;
-
-    let user_keys = BlobInfo::try_from_attr(
-      backup_table::attr::USER_KEYS,
-      value.remove(backup_table::attr::USER_KEYS),
-    )?;
-
-    let siwe_backup_msg: Option<String> =
-      value.take_attr(backup_table::attr::SIWE_BACKUP_MSG)?;
-
-    Ok(OrderedBackupItem {
-      user_id,
-      created,
-      backup_id,
-      user_keys,
-      siwe_backup_msg,
-    })
-  }
-}
diff --git a/shared/comm-lib/src/backup/mod.rs b/shared/comm-lib/src/backup/mod.rs
--- a/shared/comm-lib/src/backup/mod.rs
+++ b/shared/comm-lib/src/backup/mod.rs
@@ -1,6 +1,9 @@
 use crate::auth::UserIdentity;
 use serde::{Deserialize, Serialize};
 
+/// shared database types and constants
+pub mod database;
+
 #[derive(Debug, Clone, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct LatestBackupInfoResponse {
diff --git a/web/backup-client-wasm/Cargo.lock b/web/backup-client-wasm/Cargo.lock
--- a/web/backup-client-wasm/Cargo.lock
+++ b/web/backup-client-wasm/Cargo.lock
@@ -191,6 +191,7 @@
  "iana-time-zone",
  "js-sys",
  "num-traits",
+ "serde",
  "wasm-bindgen",
  "windows-targets 0.52.3",
 ]