Add /api/v1/accounts/{account_id}/aliases API endpoint

CHANGELOG.md

@@ -14,6 +14,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Add empty `spoiler_text` property to Mastodon API Status object.
 - Added `error` and `error_description` fields to Mastodon API error responses.
 - Store information about failed activity deliveries in database.
+- Added `/api/v1/accounts/{account_id}/aliases` API endpoint.
 
 ### Changed
 

docs/openapi.yaml

@@ -544,6 +544,23 @@ paths:
                   $ref: '#/components/schemas/Subscription'
         404:
           description: Profile not found
+  /api/v1/accounts/{account_id}/aliases:
+    get:
+      summary: Get actor's aliases.
+      parameters:
+        - $ref: '#/components/parameters/account_id'
+      responses:
+        200:
+          description: Successful operation
+          content:
+            application/json:
+              schema:
+                description: Profile list
+                type: array
+                items:
+                  $ref: '#/components/schemas/Account'
+        404:
+          description: Profile not found
   /api/v1/accounts/{account_id}/follow:
     post:
       summary: Follow the given actor.

src/mastodon_api/accounts/views.rs

@@ -67,6 +67,7 @@ use crate::mastodon_api::{
 };
 use crate::models::{
     posts::queries::get_posts_by_author,
+    profiles::helpers::find_aliases,
     profiles::queries::{
         get_profile_by_acct,
         get_profile_by_id,
@@ -797,6 +798,28 @@ async fn get_account_subscribers(
     Ok(HttpResponse::Ok().json(subscriptions))
 }
 
+#[get("/{account_id}/aliases")]
+async fn get_account_aliases(
+    connection_info: ConnectionInfo,
+    config: web::Data<Config>,
+    db_pool: web::Data<DbPool>,
+    account_id: web::Path<Uuid>,
+) -> Result<HttpResponse, MastodonError> {
+    let db_client = &**get_database_client(&db_pool).await?;
+    let profile = get_profile_by_id(db_client, &account_id).await?;
+    let aliases = find_aliases(db_client, &profile).await?;
+    let base_url = get_request_base_url(connection_info);
+    let instance_url = config.instance_url();
+    let accounts: Vec<Account> = aliases.into_iter()
+        .map(|profile| Account::from_profile(
+            &base_url,
+            &instance_url,
+            profile,
+        ))
+        .collect();
+    Ok(HttpResponse::Ok().json(accounts))
+}
+
 pub fn account_api_scope() -> Scope {
     web::scope("/api/v1/accounts")
         // Routes without account ID
@@ -819,4 +842,5 @@ pub fn account_api_scope() -> Scope {
         .service(get_account_followers)
         .service(get_account_following)
         .service(get_account_subscribers)
+        .service(get_account_aliases)
 }