feat(rocie-server): Implement basic user handling and authentication

22 files changed, 736 insertions, 163 deletions

diff --git a/crates/rocie-server/src/api/get/inventory.rs b/crates/rocie-server/src/api/get/auth/inventory.rs
index d1ca436..24a8e3d 100644
--- a/crates/rocie-server/src/api/get/inventory.rs
+++ b/crates/rocie-server/src/api/get/auth/inventory.rs
@@ -1,8 +1,12 @@
+use actix_identity::Identity;
 use actix_web::{HttpResponse, Responder, Result, get, web};
 
 use crate::{
     app::App,
-    storage::sql::{product::{ProductId, ProductIdStub}, product_amount::ProductAmount},
+    storage::sql::{
+        product::{ProductId, ProductIdStub},
+        product_amount::ProductAmount,
+    },
 };
 
 /// Get the amount of an product
@@ -18,6 +22,10 @@ use crate::{
             description = "Product not found in database"
         ),
         (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
             status = INTERNAL_SERVER_ERROR,
             description = "Server encountered error",
             body = String
@@ -34,6 +42,7 @@ use crate::{
 pub(crate) async fn amount_by_id(
     app: web::Data<App>,
     id: web::Path<ProductIdStub>,
+    _user: Identity,
 ) -> Result<impl Responder> {
     let id = id.into_inner();
 
diff --git a/crates/rocie-server/src/api/get/auth/mod.rs b/crates/rocie-server/src/api/get/auth/mod.rs
new file mode 100644
index 0000000..c51f6a7
--- /dev/null
+++ b/crates/rocie-server/src/api/get/auth/mod.rs
@@ -0,0 +1,32 @@
+use actix_web::web;
+
+pub(crate) mod inventory;
+pub(crate) mod product;
+pub(crate) mod product_parent;
+pub(crate) mod recipe;
+pub(crate) mod unit;
+pub(crate) mod unit_property;
+pub(crate) mod user;
+
+pub(crate) fn register_paths(cfg: &mut web::ServiceConfig) {
+    cfg.service(inventory::amount_by_id)
+        .service(product::product_by_id)
+        .service(product::product_by_name)
+        .service(product::product_suggestion_by_name)
+        .service(product::products_by_product_parent_id_direct)
+        .service(product::products_by_product_parent_id_indirect)
+        .service(product::products_in_storage)
+        .service(product::products_registered)
+        .service(product_parent::product_parents)
+        .service(product_parent::product_parents_toplevel)
+        .service(product_parent::product_parents_under)
+        .service(recipe::recipe_by_id)
+        .service(recipe::recipes)
+        .service(unit::unit_by_id)
+        .service(unit::units)
+        .service(unit::units_by_property_id)
+        .service(unit_property::unit_properties)
+        .service(unit_property::unit_property_by_id)
+        .service(user::users)
+        .service(user::user_by_id);
+}
diff --git a/crates/rocie-server/src/api/get/product.rs b/crates/rocie-server/src/api/get/auth/product.rs
index 4216f9b..1a1e31d 100644
--- a/crates/rocie-server/src/api/get/product.rs
+++ b/crates/rocie-server/src/api/get/auth/product.rs
@@ -1,3 +1,4 @@
+use actix_identity::Identity;
 use actix_web::{HttpRequest, HttpResponse, Responder, Result, get, web};
 use log::info;
 use percent_encoding::percent_decode_str;
@@ -31,23 +32,43 @@ impl UrlEncodedString {
 /// Get Product by id
 #[utoipa::path(
     responses(
-        (status = OK, description = "Product found from database", body = Product),
-        (status = NOT_FOUND, description = "Product not found in database"),
-        (status = INTERNAL_SERVER_ERROR, description = "Server encountered error", body = String)
+        (
+            status = OK,
+            description = "Product found from database",
+            body = Product
+        ),
+        (
+            status = NOT_FOUND,
+            description = "Product not found in database"
+        ),
+        (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String
+        )
     ),
     params(
-        ("id" = ProductId, description = "Product id" ),
+        (
+            "id" = ProductId,
+            description = "Product id"
+        ),
     )
 )]
 #[get("/product/by-id/{id}")]
 pub(crate) async fn product_by_id(
     app: web::Data<App>,
     id: web::Path<ProductIdStub>,
+    _user: Identity,
 ) -> Result<impl Responder> {
     let id = id.into_inner();
 
     match Product::from_id(&app, id.into()).await? {
         Some(product) => Ok(HttpResponse::Ok().json(product)),
+
         None => Ok(HttpResponse::NotFound().finish()),
     }
 }
@@ -55,12 +76,30 @@ pub(crate) async fn product_by_id(
 /// Get Product by name
 #[utoipa::path(
     responses(
-        (status = OK, description = "Product found from database", body = Product),
-        (status = NOT_FOUND, description = "Product not found in database"),
-        (status = INTERNAL_SERVER_ERROR, description = "Server encountered error", body = String)
+        (
+            status = OK,
+            description = "Product found from database",
+            body = Product
+        ),
+        (
+            status = NOT_FOUND,
+            description = "Product not found in database"
+        ),
+        (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String
+        )
     ),
     params(
-        ("name" = String, description = "Name of the product" ),
+        (
+            "name" = String,
+            description = "Name of the product"
+        ),
     )
 )]
 #[get("/product/by-name/{name}")]
@@ -68,6 +107,7 @@ pub(crate) async fn product_by_name(
     app: web::Data<App>,
     req: HttpRequest,
     name: web::Path<String>,
+    _user: Identity,
 ) -> Result<impl Responder> {
     drop(name);
 
@@ -80,6 +120,7 @@ pub(crate) async fn product_by_name(
 
     match Product::from_name(&app, name).await? {
         Some(product) => Ok(HttpResponse::Ok().json(product)),
+
         None => Ok(HttpResponse::NotFound().finish()),
     }
 }
@@ -87,11 +128,26 @@ pub(crate) async fn product_by_name(
 /// Get Product suggestion by name
 #[utoipa::path(
     responses(
-        (status = OK, description = "Product suggestions found from database", body = Vec<Product>),
-        (status = INTERNAL_SERVER_ERROR, description = "Server encountered error", body = String)
+        (
+            status = OK,
+            description = "Product suggestions found from database",
+            body = Vec<Product>
+        ),
+        (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String
+        )
     ),
     params(
-        ("name" = String, description = "Partial name of a product" ),
+        (
+            "name" = String,
+            description = "Partial name of a product"
+        ),
     )
 )]
 #[get("/product/by-part-name/{name}")]
@@ -99,6 +155,7 @@ pub(crate) async fn product_suggestion_by_name(
     app: web::Data<App>,
     req: HttpRequest,
     name: web::Path<String>,
+    _user: Identity,
 ) -> Result<impl Responder> {
     drop(name);
 
@@ -122,12 +179,27 @@ pub(crate) async fn product_suggestion_by_name(
 /// Return all registered products
 #[utoipa::path(
     responses(
-        (status = OK, description = "All products found", body = Vec<Product>),
-        (status = INTERNAL_SERVER_ERROR, description = "Server encountered error", body = String)
+        (
+            status = OK,
+            description = "All products found",
+            body = Vec<Product>
+        ),
+        (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String
+        )
     ),
 )]
 #[get("/products_registered/")]
-pub(crate) async fn products_registered(app: web::Data<App>) -> Result<impl Responder> {
+pub(crate) async fn products_registered(
+    app: web::Data<App>,
+    _user: Identity,
+) -> Result<impl Responder> {
     let all = Product::get_all(&app).await?;
 
     Ok(HttpResponse::Ok().json(all))
@@ -136,12 +208,27 @@ pub(crate) async fn products_registered(app: web::Data<App>) -> Result<impl Resp
 /// Return all products, which non-null amount in storage
 #[utoipa::path(
     responses(
-        (status = OK, description = "All products found", body = Vec<Product>),
-        (status = INTERNAL_SERVER_ERROR, description = "Server encountered error", body = String)
+        (
+            status = OK,
+            description = "All products found",
+            body = Vec<Product>
+        ),
+        (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String
+        )
     ),
 )]
 #[get("/products_in_storage/")]
-pub(crate) async fn products_in_storage(app: web::Data<App>) -> Result<impl Responder> {
+pub(crate) async fn products_in_storage(
+    app: web::Data<App>,
+    _user: Identity,
+) -> Result<impl Responder> {
     let all = Product::get_all(&app).await?;
 
     let mut output_products = Vec::with_capacity(all.len());
@@ -161,18 +248,37 @@ pub(crate) async fn products_in_storage(app: web::Data<App>) -> Result<impl Resp
 /// This will also return all products below this product parent id
 #[utoipa::path(
     responses(
-        (status = OK, description = "Products found from database", body = Vec<Product>),
-        (status = NOT_FOUND, description = "Product parent id not found in database"),
-        (status = INTERNAL_SERVER_ERROR, description = "Server encountered error", body = String)
+        (
+            status = OK,
+            description = "Products found from database",
+            body = Vec<Product>
+        ),
+        (
+            status = NOT_FOUND,
+            description = "Product parent id not found in database"
+        ),
+        (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String
+        )
     ),
     params(
-        ("id" = ProductParentId, description = "Product parent id" ),
+        (
+            "id" = ProductParentId,
+            description = "Product parent id"
+        ),
     )
 )]
 #[get("/product/by-product-parent-id-indirect/{id}")]
 pub(crate) async fn products_by_product_parent_id_indirect(
     app: web::Data<App>,
     id: web::Path<ProductParentIdStub>,
+    _user: Identity,
 ) -> Result<impl Responder> {
     let id = id.into_inner();
 
@@ -208,18 +314,37 @@ pub(crate) async fn products_by_product_parent_id_indirect(
 /// This will only return products directly associated with this product parent id
 #[utoipa::path(
     responses(
-        (status = OK, description = "Products found from database", body = Vec<Product>),
-        (status = NOT_FOUND, description = "Product parent id not found in database"),
-        (status = INTERNAL_SERVER_ERROR, description = "Server encountered error", body = String)
+        (
+            status = OK,
+            description = "Products found from database",
+            body = Vec<Product>
+        ),
+        (
+            status = NOT_FOUND,
+            description = "Product parent id not found in database"
+        ),
+        (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String
+        )
     ),
     params(
-        ("id" = ProductParentId, description = "Product parent id" ),
+        (
+            "id" = ProductParentId,
+            description = "Product parent id"
+        ),
     )
 )]
 #[get("/product/by-product-parent-id-direct/{id}")]
 pub(crate) async fn products_by_product_parent_id_direct(
     app: web::Data<App>,
     id: web::Path<ProductParentIdStub>,
+    _user: Identity,
 ) -> Result<impl Responder> {
     let id = id.into_inner();
 
diff --git a/crates/rocie-server/src/api/get/auth/product_parent.rs b/crates/rocie-server/src/api/get/auth/product_parent.rs
new file mode 100644
index 0000000..6c3351d
--- /dev/null
+++ b/crates/rocie-server/src/api/get/auth/product_parent.rs
@@ -0,0 +1,111 @@
+use actix_identity::Identity;
+use actix_web::{HttpResponse, Responder, error::Result, get, web};
+
+use crate::{
+    app::App,
+    storage::sql::product_parent::{ProductParent, ProductParentId, ProductParentIdStub},
+};
+
+/// Return all registered product parents
+#[utoipa::path(
+    responses(
+        (
+            status = OK,
+            description = "All parents found",
+            body = Vec<ProductParent>
+        ),
+        (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String
+        )
+    ),
+)]
+#[get("/product_parents/")]
+pub(crate) async fn product_parents(
+    app: web::Data<App>,
+    _user: Identity,
+) -> Result<impl Responder> {
+    let all: Vec<ProductParent> = ProductParent::get_all(&app).await?;
+
+    Ok(HttpResponse::Ok().json(all))
+}
+
+/// Return all registered product parents, that have no parents themselves
+#[utoipa::path(
+    responses(
+        (
+            status = OK,
+            description = "All parents found",
+            body = Vec<ProductParent>
+        ),
+        (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String
+        )
+    ),
+)]
+#[get("/product_parents_toplevel/")]
+pub(crate) async fn product_parents_toplevel(
+    app: web::Data<App>,
+    _user: Identity,
+) -> Result<impl Responder> {
+    let all: Vec<ProductParent> = ProductParent::get_all(&app)
+        .await?
+        .into_iter()
+        .filter(|parent| parent.parent.is_none())
+        .collect();
+
+    Ok(HttpResponse::Ok().json(all))
+}
+
+/// Return all parents, that have this parent as parent
+#[utoipa::path(
+    responses(
+        (
+            status = OK,
+            description = "All parents found",
+            body = Vec<ProductParent>
+        ),
+        (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String
+        )
+    ),
+    params(
+        (
+            "id" = ProductParentId,
+            description = "Product parent id"
+        ),
+    ),
+)]
+#[get("/product_parents_under/{id}")]
+pub(crate) async fn product_parents_under(
+    app: web::Data<App>,
+    id: web::Path<ProductParentIdStub>,
+    _user: Identity,
+) -> Result<impl Responder> {
+    let id = id.into_inner().into();
+
+    let all: Vec<_> = ProductParent::get_all(&app)
+        .await?
+        .into_iter()
+        .filter(|parent| parent.parent.is_some_and(|found| found == id))
+        .collect();
+
+    Ok(HttpResponse::Ok().json(all))
+}
diff --git a/crates/rocie-server/src/api/get/recipe.rs b/crates/rocie-server/src/api/get/auth/recipe.rs
index 70bab39..cb80597 100644
--- a/crates/rocie-server/src/api/get/recipe.rs
+++ b/crates/rocie-server/src/api/get/auth/recipe.rs
@@ -1,3 +1,4 @@
+use actix_identity::Identity;
 use actix_web::{HttpResponse, Responder, error::Result, get, web};
 
 use crate::{
@@ -14,6 +15,10 @@ use crate::{
             body = Recipe,
         ),
         (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
             status = NOT_FOUND,
             description = "Recipe not found in database"
         ),
@@ -34,6 +39,7 @@ use crate::{
 pub(crate) async fn recipe_by_id(
     app: web::Data<App>,
     id: web::Path<RecipeIdStub>,
+    _user: Identity,
 ) -> Result<impl Responder> {
     let id = id.into_inner();
 
@@ -52,6 +58,10 @@ pub(crate) async fn recipe_by_id(
             body = Recipe,
         ),
         (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
             status = INTERNAL_SERVER_ERROR,
             description = "Server encountered error",
             body = String
@@ -59,7 +69,7 @@ pub(crate) async fn recipe_by_id(
     ),
 )]
 #[get("/recipe/all")]
-pub(crate) async fn recipes(app: web::Data<App>) -> Result<impl Responder> {
+pub(crate) async fn recipes(app: web::Data<App>, _user: Identity) -> Result<impl Responder> {
     let all = Recipe::get_all(&app).await?;
 
     Ok(HttpResponse::Ok().json(all))
diff --git a/crates/rocie-server/src/api/get/unit.rs b/crates/rocie-server/src/api/get/auth/unit.rs
index caafaa3..980d9c7 100644
--- a/crates/rocie-server/src/api/get/unit.rs
+++ b/crates/rocie-server/src/api/get/auth/unit.rs
@@ -1,3 +1,4 @@
+use actix_identity::Identity;
 use actix_web::{HttpResponse, Responder, Result, get, web};
 
 use crate::{
@@ -17,6 +18,10 @@ use crate::{
             body = Vec<Unit>
         ),
         (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
             status = INTERNAL_SERVER_ERROR,
             description = "Server encountered error",
             body = String
@@ -24,7 +29,7 @@ use crate::{
     ),
 )]
 #[get("/units/")]
-pub(crate) async fn units(app: web::Data<App>) -> Result<impl Responder> {
+pub(crate) async fn units(app: web::Data<App>, _user: Identity) -> Result<impl Responder> {
     let all = Unit::get_all(&app).await?;
 
     Ok(HttpResponse::Ok().json(all))
@@ -39,6 +44,10 @@ pub(crate) async fn units(app: web::Data<App>) -> Result<impl Responder> {
             body = Vec<Unit>
         ),
         (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
             status = INTERNAL_SERVER_ERROR,
             description = "Server encountered error",
             body = String
@@ -55,6 +64,7 @@ pub(crate) async fn units(app: web::Data<App>) -> Result<impl Responder> {
 pub(crate) async fn units_by_property_id(
     app: web::Data<App>,
     id: web::Path<UnitPropertyIdStub>,
+    _user: Identity,
 ) -> Result<impl Responder> {
     let id = id.into_inner();
     let all = Unit::get_all(&app)
@@ -75,6 +85,10 @@ pub(crate) async fn units_by_property_id(
             body = Unit
         ),
         (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
             status = NOT_FOUND,
             description = "Unit not found in database"
         ),
@@ -95,6 +109,7 @@ pub(crate) async fn units_by_property_id(
 pub(crate) async fn unit_by_id(
     app: web::Data<App>,
     id: web::Path<UnitIdStub>,
+    _user: Identity,
 ) -> Result<impl Responder> {
     let id = id.into_inner();
 
diff --git a/crates/rocie-server/src/api/get/unit_property.rs b/crates/rocie-server/src/api/get/auth/unit_property.rs
index 3160480..f5b070a 100644
--- a/crates/rocie-server/src/api/get/unit_property.rs
+++ b/crates/rocie-server/src/api/get/auth/unit_property.rs
@@ -1,10 +1,9 @@
+use actix_identity::Identity;
 use actix_web::{HttpResponse, Responder, Result, get, web};
 
 use crate::{
     app::App,
-    storage::sql::{
-        unit_property::{UnitProperty, UnitPropertyId, UnitPropertyIdStub},
-    },
+    storage::sql::unit_property::{UnitProperty, UnitPropertyId, UnitPropertyIdStub},
 };
 
 /// Return all registered unit properties
@@ -16,6 +15,10 @@ use crate::{
             body = Vec<UnitProperty>
         ),
         (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
             status = INTERNAL_SERVER_ERROR,
             description = "Server encountered error",
             body = String
@@ -23,7 +26,10 @@ use crate::{
     ),
 )]
 #[get("/unit-properties/")]
-pub(crate) async fn unit_properties(app: web::Data<App>) -> Result<impl Responder> {
+pub(crate) async fn unit_properties(
+    app: web::Data<App>,
+    _user: Identity,
+) -> Result<impl Responder> {
     let all = UnitProperty::get_all(&app).await?;
 
     Ok(HttpResponse::Ok().json(all))
@@ -42,6 +48,10 @@ pub(crate) async fn unit_properties(app: web::Data<App>) -> Result<impl Responde
             description = "Unit Property not found in database"
         ),
         (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
             status = INTERNAL_SERVER_ERROR,
             description = "Server encountered error",
             body = String
@@ -58,6 +68,7 @@ pub(crate) async fn unit_properties(app: web::Data<App>) -> Result<impl Responde
 pub(crate) async fn unit_property_by_id(
     app: web::Data<App>,
     id: web::Path<UnitPropertyIdStub>,
+    _user: Identity,
 ) -> Result<impl Responder> {
     let id = id.into_inner();
 
diff --git a/crates/rocie-server/src/api/get/auth/user.rs b/crates/rocie-server/src/api/get/auth/user.rs
new file mode 100644
index 0000000..e4a5046
--- /dev/null
+++ b/crates/rocie-server/src/api/get/auth/user.rs
@@ -0,0 +1,85 @@
+use actix_identity::Identity;
+use actix_web::{HttpResponse, Responder, Result, get, web};
+
+use crate::{
+    app::App,
+    storage::sql::user::{User, UserId, UserIdStub},
+};
+
+/// Get all registered users.
+#[utoipa::path(
+    responses(
+        (
+            status = OK,
+            description = "Users found in database and fetched",
+            body = Vec<User>,
+        ),
+        (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String
+        )
+    ),
+)]
+#[get("/users")]
+async fn users(app: web::Data<App>, _user: Identity) -> Result<impl Responder> {
+    let output = User::get_all(&app).await?;
+
+    Ok(HttpResponse::Ok().json(output))
+}
+
+/// Get an specific user by id.
+#[utoipa::path(
+    responses(
+        (
+            status = OK,
+            description = "User found in database and fetched",
+            body = User,
+        ),
+        (
+            status = NOT_FOUND,
+            description = "User not found in database"
+        ),
+        (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
+            status = FORBIDDEN,
+            description = "The current logged in user is not allowed to access this end-point."
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String
+        )
+    ),
+    params(
+        (
+            "id" = UserId,
+            description = "User id"
+        ),
+    )
+)]
+#[get("/user/{id}")]
+async fn user_by_id(
+    id: web::Path<UserIdStub>,
+    app: web::Data<App>,
+    user: Identity,
+) -> Result<impl Responder> {
+    let id: UserId = id.into_inner().into();
+
+    if user.id().expect("to have one") != id.to_string() {
+        return Ok(HttpResponse::Forbidden()
+            .body("You must be logged-in as the same user, you request the info for."));
+    }
+
+    match User::from_id(&app, id).await? {
+        Some(user) => Ok(HttpResponse::Ok().json(user)),
+        None => Ok(HttpResponse::NotFound().finish()),
+    }
+}
diff --git a/crates/rocie-server/src/api/get/mod.rs b/crates/rocie-server/src/api/get/mod.rs
index 487b55c..c6ee9ab 100644
--- a/crates/rocie-server/src/api/get/mod.rs
+++ b/crates/rocie-server/src/api/get/mod.rs
@@ -1,29 +1,2 @@
-use actix_web::web;
-
-pub(crate) mod inventory;
-pub(crate) mod product;
-pub(crate) mod product_parent;
-pub(crate) mod recipe;
-pub(crate) mod unit;
-pub(crate) mod unit_property;
-
-pub(crate) fn register_paths(cfg: &mut web::ServiceConfig) {
-    cfg.service(product::product_by_id)
-        .service(product::product_by_name)
-        .service(product::product_suggestion_by_name)
-        .service(product::products_registered)
-        .service(product::products_in_storage)
-        .service(product::products_by_product_parent_id_indirect)
-        .service(product::products_by_product_parent_id_direct)
-        .service(product_parent::product_parents)
-        .service(product_parent::product_parents_toplevel)
-        .service(product_parent::product_parents_under)
-        .service(recipe::recipe_by_id)
-        .service(recipe::recipes)
-        .service(unit::units)
-        .service(unit::units_by_property_id)
-        .service(unit::unit_by_id)
-        .service(unit_property::unit_properties)
-        .service(unit_property::unit_property_by_id)
-        .service(inventory::amount_by_id);
-}
+pub(crate) mod auth;
+pub(crate) mod no_auth;
diff --git a/crates/rocie-server/src/api/get/no_auth/mod.rs b/crates/rocie-server/src/api/get/no_auth/mod.rs
new file mode 100644
index 0000000..38a041c
--- /dev/null
+++ b/crates/rocie-server/src/api/get/no_auth/mod.rs
@@ -0,0 +1,3 @@
+use actix_web::web;
+
+pub(crate) fn register_paths(cfg: &mut web::ServiceConfig) {}
diff --git a/crates/rocie-server/src/api/get/product_parent.rs b/crates/rocie-server/src/api/get/product_parent.rs
deleted file mode 100644
index a62397c..0000000
--- a/crates/rocie-server/src/api/get/product_parent.rs
+++ /dev/null
@@ -1,64 +0,0 @@
-use actix_web::{HttpResponse, Responder, error::Result, get, web};
-
-use crate::{
-    app::App,
-    storage::sql::product_parent::{ProductParent, ProductParentId, ProductParentIdStub},
-};
-
-/// Return all registered product parents
-#[utoipa::path(
-    responses(
-        (status = OK, description = "All parents found", body = Vec<ProductParent>),
-        (status = INTERNAL_SERVER_ERROR, description = "Server encountered error", body = String)
-    ),
-)]
-#[get("/product_parents/")]
-pub(crate) async fn product_parents(app: web::Data<App>) -> Result<impl Responder> {
-    let all: Vec<ProductParent> = ProductParent::get_all(&app).await?;
-
-    Ok(HttpResponse::Ok().json(all))
-}
-
-/// Return all registered product parents, that have no parents themselves
-#[utoipa::path(
-    responses(
-        (status = OK, description = "All parents found", body = Vec<ProductParent>),
-        (status = INTERNAL_SERVER_ERROR, description = "Server encountered error", body = String)
-    ),
-)]
-#[get("/product_parents_toplevel/")]
-pub(crate) async fn product_parents_toplevel(app: web::Data<App>) -> Result<impl Responder> {
-    let all: Vec<ProductParent> = ProductParent::get_all(&app)
-        .await?
-        .into_iter()
-        .filter(|parent| parent.parent.is_none())
-        .collect();
-
-    Ok(HttpResponse::Ok().json(all))
-}
-
-/// Return all parents, that have this parent as parent
-#[utoipa::path(
-    responses(
-        (status = OK, description = "All parents found", body = Vec<ProductParent>),
-        (status = INTERNAL_SERVER_ERROR, description = "Server encountered error", body = String)
-    ),
-    params(
-        ("id" = ProductParentId, description = "Product parent id" ),
-    ),
-)]
-#[get("/product_parents_under/{id}")]
-pub(crate) async fn product_parents_under(
-    app: web::Data<App>,
-    id: web::Path<ProductParentIdStub>,
-) -> Result<impl Responder> {
-    let id = id.into_inner().into();
-
-    let all: Vec<_> = ProductParent::get_all(&app)
-        .await?
-        .into_iter()
-        .filter(|parent| parent.parent.is_some_and(|found| found == id))
-        .collect();
-
-    Ok(HttpResponse::Ok().json(all))
-}
diff --git a/crates/rocie-server/src/api/set/barcode.rs b/crates/rocie-server/src/api/set/auth/barcode.rs
index bb84bbf..1d97852 100644
--- a/crates/rocie-server/src/api/set/barcode.rs
+++ b/crates/rocie-server/src/api/set/auth/barcode.rs
@@ -1,3 +1,4 @@
+use actix_identity::Identity;
 use actix_web::{HttpResponse, Responder, Result, post, web};
 use log::debug;
 
@@ -22,20 +23,31 @@ use crate::{
             description = "Barcode id was not found",
         ),
         (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
             status = INTERNAL_SERVER_ERROR,
             description = "Server encountered error",
             body = String,
         )
     ),
     params(
-        ("barcode_id" = BarcodeId, description = "The numeric value of the barcode"),
-        ("times" = u16, description = "How often to buy the barcode"),
+        (
+            "barcode_id" = BarcodeId,
+            description = "The numeric value of the barcode"
+        ),
+        (
+            "times" = u16,
+            description = "How often to buy the barcode"
+        ),
     )
 )]
 #[post("/barcode/{barcode_id}/buy/{times}")]
 pub(crate) async fn buy_barcode(
     app: web::Data<App>,
     path: web::Path<(BarcodeIdStub, u16)>,
+    _user: Identity,
 ) -> Result<impl Responder> {
     let (barcode_id, times) = path.into_inner();
 
@@ -69,13 +81,20 @@ pub(crate) async fn buy_barcode(
             description = "Barcode id was not found",
         ),
         (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
             status = INTERNAL_SERVER_ERROR,
             description = "Server encountered error",
             body = String,
         )
     ),
     params(
-        ("id" = BarcodeId, description = "The numeric value of the barcode"),
+        (
+            "id" = BarcodeId,
+            description = "The numeric value of the barcode"
+        ),
     ),
     request_body = UnitAmount,
 )]
@@ -84,6 +103,7 @@ pub(crate) async fn consume_barcode(
     app: web::Data<App>,
     barcode_id: web::Path<BarcodeIdStub>,
     unit_amount: web::Json<UnitAmount>,
+    _user: Identity,
 ) -> Result<impl Responder> {
     let mut ops = Operations::new("consume barcode unit");
 
diff --git a/crates/rocie-server/src/api/set/auth/mod.rs b/crates/rocie-server/src/api/set/auth/mod.rs
new file mode 100644
index 0000000..4e733a9
--- /dev/null
+++ b/crates/rocie-server/src/api/set/auth/mod.rs
@@ -0,0 +1,21 @@
+use actix_web::web;
+
+pub(crate) mod barcode;
+pub(crate) mod product;
+pub(crate) mod product_parent;
+pub(crate) mod recipe;
+pub(crate) mod unit;
+pub(crate) mod unit_property;
+pub(crate) mod user;
+
+pub(crate) fn register_paths(cfg: &mut web::ServiceConfig) {
+    cfg.service(product::register_product)
+        .service(product::associate_barcode)
+        .service(product_parent::register_product_parent)
+        .service(recipe::add_recipe)
+        .service(unit::register_unit)
+        .service(unit_property::register_unit_property)
+        .service(barcode::consume_barcode)
+        .service(barcode::buy_barcode)
+        .service(user::register_user);
+}
diff --git a/crates/rocie-server/src/api/set/product.rs b/crates/rocie-server/src/api/set/auth/product.rs
index 74a92d2..b2a751f 100644
--- a/crates/rocie-server/src/api/set/product.rs
+++ b/crates/rocie-server/src/api/set/auth/product.rs
@@ -1,3 +1,4 @@
+use actix_identity::Identity;
 use actix_web::{HttpResponse, Responder, Result, post, web};
 use serde::Deserialize;
 use utoipa::ToSchema;
@@ -40,6 +41,10 @@ struct ProductStub {
             body = ProductId,
         ),
         (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
             status = INTERNAL_SERVER_ERROR,
             description = "Server encountered error",
             body = String,
@@ -51,13 +56,15 @@ struct ProductStub {
 pub(crate) async fn register_product(
     app: web::Data<App>,
     product_stub: web::Json<ProductStub>,
+    _user: Identity,
 ) -> Result<impl Responder> {
+    let product_stub = product_stub.into_inner();
     let mut ops = Operations::new("register product");
 
     let product = Product::register(
-        product_stub.name.clone(),
-        product_stub.description.clone(),
-        product_stub.parent.into(),
+        product_stub.name,
+        product_stub.description,
+        product_stub.parent,
         product_stub.unit_property,
         &mut ops,
     );
@@ -79,7 +86,11 @@ pub(crate) async fn register_product(
             description = "Product id not found in database",
         ),
         (
-            status = FORBIDDEN,
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
+            status = BAD_REQUEST,
             description = "Unit used in request has not been registered yet",
             body = String,
         ),
@@ -102,13 +113,14 @@ pub(crate) async fn associate_barcode(
     app: web::Data<App>,
     id: web::Path<ProductIdStub>,
     barcode: web::Json<Barcode>,
+    _user: Identity,
 ) -> Result<impl Responder> {
     let mut ops = Operations::new("associated barcode with product");
 
     {
         let units = Unit::get_all(&app).await?;
         if !units.into_iter().any(|unit| unit.id == barcode.amount.unit) {
-            return Ok(HttpResponse::Forbidden()
+            return Ok(HttpResponse::BadRequest()
                 .body("The used unit has not been registered; it cannot be used.\n"));
         }
     }
diff --git a/crates/rocie-server/src/api/set/product_parent.rs b/crates/rocie-server/src/api/set/auth/product_parent.rs
index f917207..416875b 100644
--- a/crates/rocie-server/src/api/set/product_parent.rs
+++ b/crates/rocie-server/src/api/set/auth/product_parent.rs
@@ -1,3 +1,4 @@
+use actix_identity::Identity;
 use actix_web::{HttpResponse, Responder, Result, post, web};
 use serde::Deserialize;
 use utoipa::ToSchema;
@@ -28,11 +29,15 @@ struct ProductParentStub {
 #[utoipa::path(
     responses(
         (
-            status = 200,
+            status = OK,
             description = "Product parent successfully registered in database",
             body = ProductParentId,
         ),
         (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
             status = INTERNAL_SERVER_ERROR,
             description = "Server encountered error",
             body = String,
@@ -44,13 +49,15 @@ struct ProductParentStub {
 pub(crate) async fn register_product_parent(
     app: web::Data<App>,
     product_stub: web::Json<ProductParentStub>,
+    _user: Identity,
 ) -> Result<impl Responder> {
+    let product_stub = product_stub.into_inner();
     let mut ops = Operations::new("register product parent");
 
     let product = ProductParent::register(
-        product_stub.name.clone(),
-        product_stub.description.clone(),
-        product_stub.parent.into(),
+        product_stub.name,
+        product_stub.description,
+        product_stub.parent,
         &mut ops,
     );
 
diff --git a/crates/rocie-server/src/api/set/recipe.rs b/crates/rocie-server/src/api/set/auth/recipe.rs
index bb5be37..43a034e 100644
--- a/crates/rocie-server/src/api/set/recipe.rs
+++ b/crates/rocie-server/src/api/set/auth/recipe.rs
@@ -1,5 +1,6 @@
 use std::path::PathBuf;
 
+use actix_identity::Identity;
 use actix_web::{HttpResponse, Responder, error::Result, post, web};
 use serde::Deserialize;
 use utoipa::ToSchema;
@@ -26,11 +27,15 @@ struct RecipeStub {
 #[utoipa::path(
     responses(
         (
-            status = 200,
+            status = OK,
             description = "Product parent successfully registered in database",
             body = RecipeId,
         ),
         (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
             status = INTERNAL_SERVER_ERROR,
             description = "Server encountered error",
             body = String,
@@ -42,6 +47,7 @@ struct RecipeStub {
 pub(crate) async fn add_recipe(
     app: web::Data<App>,
     stub: web::Json<RecipeStub>,
+    _user: Identity,
 ) -> Result<impl Responder> {
     let stub = stub.into_inner();
     let mut ops = Operations::new("add recipe parent");
diff --git a/crates/rocie-server/src/api/set/unit.rs b/crates/rocie-server/src/api/set/auth/unit.rs
index 1671918..21d1e11 100644
--- a/crates/rocie-server/src/api/set/unit.rs
+++ b/crates/rocie-server/src/api/set/auth/unit.rs
@@ -1,3 +1,4 @@
+use actix_identity::Identity;
 use actix_web::{HttpResponse, Responder, Result, post, web};
 use serde::Deserialize;
 use utoipa::ToSchema;
@@ -26,11 +27,15 @@ struct UnitStub {
 #[utoipa::path(
     responses(
         (
-            status = 200,
+            status = OK,
             description = "Unit successfully registered in database",
             body = UnitId,
         ),
         (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
             status = INTERNAL_SERVER_ERROR,
             description = "Server encountered error",
             body = String,
@@ -42,14 +47,16 @@ struct UnitStub {
 pub(crate) async fn register_unit(
     app: web::Data<App>,
     unit: web::Json<UnitStub>,
+    _user: Identity,
 ) -> Result<impl Responder> {
+    let unit = unit.into_inner();
     let mut ops = Operations::new("register unit");
 
     let unit = Unit::register(
-        unit.full_name_singular.clone(),
-        unit.full_name_plural.clone(),
-        unit.short_name.clone(),
-        unit.description.clone(),
+        unit.full_name_singular,
+        unit.full_name_plural,
+        unit.short_name,
+        unit.description,
         unit.unit_property,
         &mut ops,
     );
diff --git a/crates/rocie-server/src/api/set/unit_property.rs b/crates/rocie-server/src/api/set/auth/unit_property.rs
index ca2960f..2958e1f 100644
--- a/crates/rocie-server/src/api/set/unit_property.rs
+++ b/crates/rocie-server/src/api/set/auth/unit_property.rs
@@ -1,3 +1,4 @@
+use actix_identity::Identity;
 use actix_web::{HttpResponse, Responder, Result, post, web};
 use serde::Deserialize;
 use utoipa::ToSchema;
@@ -24,11 +25,15 @@ struct UnitPropertyStub {
 #[utoipa::path(
     responses(
         (
-            status = 200,
+            status = OK,
             description = "Unit property successfully registered in database",
             body = UnitPropertyId,
         ),
         (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
             status = INTERNAL_SERVER_ERROR,
             description = "Server encountered error",
             body = String,
@@ -40,6 +45,7 @@ struct UnitPropertyStub {
 pub(crate) async fn register_unit_property(
     app: web::Data<App>,
     unit: web::Json<UnitPropertyStub>,
+    _user: Identity,
 ) -> Result<impl Responder> {
     let mut ops = Operations::new("register unit property");
 
diff --git a/crates/rocie-server/src/api/set/auth/user.rs b/crates/rocie-server/src/api/set/auth/user.rs
new file mode 100644
index 0000000..1f262d5
--- /dev/null
+++ b/crates/rocie-server/src/api/set/auth/user.rs
@@ -0,0 +1,63 @@
+use actix_identity::Identity;
+use actix_web::{HttpResponse, Responder, Result, post, web};
+use serde::Deserialize;
+use utoipa::ToSchema;
+
+use crate::{
+    app::App,
+    storage::sql::{
+        insert::Operations,
+        user::{PasswordHash, User, UserId},
+    },
+};
+
+#[derive(Deserialize, ToSchema)]
+pub(crate) struct UserStub {
+    /// The name of the new user.
+    pub(crate) name: String,
+
+    /// The password of the new user.
+    pub(crate) password: String,
+
+    /// An optional description of the new user.
+    #[schema(nullable = false)]
+    pub(crate) description: Option<String>,
+}
+
+/// Register an new User
+#[utoipa::path(
+    responses(
+        (
+            status = OK,
+            description = "User successfully registered in database",
+            body = UserId,
+        ),
+        (
+            status = UNAUTHORIZED,
+            description = "You did not login before calling this endpoint",
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String,
+        )
+    ),
+    request_body = UserStub,
+)]
+#[post("/user/new")]
+pub(crate) async fn register_user(
+    app: web::Data<App>,
+    new_user: web::Json<UserStub>,
+    _user: Identity,
+) -> Result<impl Responder> {
+    let user = new_user.into_inner();
+
+    let mut ops = Operations::new("register user");
+
+    let password_hash = PasswordHash::from_password(&user.password);
+    let user = User::register(user.name, password_hash, user.description, &mut ops);
+
+    ops.apply(&app).await?;
+
+    Ok(HttpResponse::Ok().json(user.id))
+}
diff --git a/crates/rocie-server/src/api/set/mod.rs b/crates/rocie-server/src/api/set/mod.rs
index a6037b9..c6ee9ab 100644
--- a/crates/rocie-server/src/api/set/mod.rs
+++ b/crates/rocie-server/src/api/set/mod.rs
@@ -1,19 +1,2 @@
-use actix_web::web;
-
-pub(crate) mod barcode;
-pub(crate) mod product;
-pub(crate) mod product_parent;
-pub(crate) mod recipe;
-pub(crate) mod unit;
-pub(crate) mod unit_property;
-
-pub(crate) fn register_paths(cfg: &mut web::ServiceConfig) {
-    cfg.service(product::register_product)
-        .service(product::associate_barcode)
-        .service(product_parent::register_product_parent)
-        .service(recipe::add_recipe)
-        .service(unit::register_unit)
-        .service(unit_property::register_unit_property)
-        .service(barcode::consume_barcode)
-        .service(barcode::buy_barcode);
-}
+pub(crate) mod auth;
+pub(crate) mod no_auth;
diff --git a/crates/rocie-server/src/api/set/no_auth/mod.rs b/crates/rocie-server/src/api/set/no_auth/mod.rs
new file mode 100644
index 0000000..27783fc
--- /dev/null
+++ b/crates/rocie-server/src/api/set/no_auth/mod.rs
@@ -0,0 +1,7 @@
+use actix_web::web;
+
+pub(crate) mod user;
+
+pub(crate) fn register_paths(cfg: &mut web::ServiceConfig) {
+    cfg.service(user::login).service(user::logout).service(user::provision);
+}
diff --git a/crates/rocie-server/src/api/set/no_auth/user.rs b/crates/rocie-server/src/api/set/no_auth/user.rs
new file mode 100644
index 0000000..7acb482
--- /dev/null
+++ b/crates/rocie-server/src/api/set/no_auth/user.rs
@@ -0,0 +1,131 @@
+use actix_identity::Identity;
+use actix_web::{HttpMessage, HttpRequest, HttpResponse, Responder, Result, post, web};
+use serde::{Deserialize, Serialize};
+use utoipa::ToSchema;
+
+use crate::{
+    api::set::auth::user::UserStub,
+    app::App,
+    storage::sql::{
+        insert::Operations,
+        user::{PasswordHash, User, UserId},
+    },
+};
+
+#[derive(ToSchema, Deserialize, Serialize)]
+struct LoginInfo {
+    /// The id of the user.
+    id: UserId,
+
+    /// The password of the user.
+    password: String,
+}
+
+/// Log in as a specific user
+#[utoipa::path(
+    responses(
+        (
+            status = OK,
+            description = "User logged in",
+        ),
+        (
+            status = NOT_FOUND,
+            description = "User id not found"
+        ),
+        (
+            status = FORBIDDEN,
+            description = "Password did not match"
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String
+        )
+    ),
+    request_body = LoginInfo,
+)]
+#[post("/login")]
+async fn login(
+    request: HttpRequest,
+    app: web::Data<App>,
+    info: web::Json<LoginInfo>,
+) -> Result<impl Responder> {
+    let info = info.into_inner();
+
+    if let Some(user) = User::from_id(&app, info.id).await? {
+        if user.password_hash.verify(&info.password) {
+            Identity::login(&request.extensions(), info.id.to_string())?;
+            Ok(HttpResponse::Ok().finish())
+        } else {
+            Ok(HttpResponse::Forbidden().finish())
+        }
+    } else {
+        Ok(HttpResponse::NotFound().finish())
+    }
+}
+
+/// Log the current user out
+#[utoipa::path(
+    responses(
+        (
+            status = OK,
+            description = "User logged out",
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String
+        )
+    ),
+)]
+#[post("/logout")]
+async fn logout(user: Identity) -> impl Responder {
+    user.logout();
+    HttpResponse::Ok()
+}
+
+/// Provision this instance.
+///
+/// This only works, if no users exist yet.
+#[utoipa::path(
+    responses(
+        (
+            status = OK,
+            description = "User created and logged in",
+            body = UserId,
+        ),
+        (
+            status = FORBIDDEN,
+            description = "Instance already provisioned",
+        ),
+        (
+            status = INTERNAL_SERVER_ERROR,
+            description = "Server encountered error",
+            body = String
+        )
+    ),
+    request_body = UserStub,
+)]
+#[post("/provision")]
+async fn provision(
+    request: HttpRequest,
+    app: web::Data<App>,
+    new_user: web::Json<UserStub>,
+) -> Result<impl Responder> {
+    if User::get_all(&app).await?.is_empty() {
+        let user = new_user.into_inner();
+
+        let mut ops = Operations::new("register user (during provisioning)");
+
+        let password_hash = PasswordHash::from_password(&user.password);
+        let user = User::register(user.name, password_hash, user.description, &mut ops);
+
+        ops.apply(&app).await?;
+
+        Identity::login(&request.extensions(), user.id.to_string())?;
+
+        Ok(HttpResponse::Ok().json(user.id))
+    } else {
+        Ok(HttpResponse::Forbidden().finish())
+    }
+}