Add GET /family/{id}/member/{id_member}

geneit_backend/src/extractors/family_extractor.rs

@@ -18,6 +18,12 @@ impl FamilyInPath {
     }
 }
 
+impl From<FamilyInPath> for Membership {
+    fn from(val: FamilyInPath) -> Self {
+        val.0
+    }
+}
+
 impl Deref for FamilyInPath {
     type Target = Membership;
 

geneit_backend/src/extractors/member_extractor.rs

@@ -0,0 +1,79 @@
+use crate::extractors::family_extractor::FamilyInPath;
+use crate::models::{FamilyID, Member, MemberID, Membership};
+use crate::services::members_service;
+use actix_web::dev::Payload;
+use actix_web::{FromRequest, HttpRequest};
+use serde::Deserialize;
+use std::ops::Deref;
+
+#[derive(thiserror::Error, Debug)]
+enum MemberExtractorErr {
+    #[error("Member {0:?} does not belong to family {1:?}!")]
+    MemberNotInFamily(MemberID, FamilyID),
+}
+
+#[derive(Debug)]
+pub struct FamilyAndMemberInPath(Membership, Member);
+
+impl FamilyAndMemberInPath {
+    async fn load_member_from_path(
+        family: FamilyInPath,
+        member_id: MemberID,
+    ) -> anyhow::Result<Self> {
+        let member = members_service::get_by_id(member_id).await?;
+        if member.family_id() != family.family_id() {
+            return Err(
+                MemberExtractorErr::MemberNotInFamily(member.id(), family.family_id()).into(),
+            );
+        }
+
+        Ok(Self(family.into(), member))
+    }
+}
+
+impl Deref for FamilyAndMemberInPath {
+    type Target = Member;
+
+    fn deref(&self) -> &Self::Target {
+        &self.1
+    }
+}
+
+impl FamilyAndMemberInPath {
+    pub fn membership(&self) -> &Membership {
+        &self.0
+    }
+
+    pub fn to_member(self) -> Member {
+        self.1
+    }
+}
+
+#[derive(Deserialize)]
+struct MemberIDInPath {
+    member_id: MemberID,
+}
+
+impl FromRequest for FamilyAndMemberInPath {
+    type Error = actix_web::Error;
+    type Future = futures_util::future::LocalBoxFuture<'static, Result<Self, Self::Error>>;
+
+    fn from_request(req: &HttpRequest, _payload: &mut Payload) -> Self::Future {
+        let req = req.clone();
+        Box::pin(async move {
+            let family = FamilyInPath::extract(&req).await?;
+
+            let member_id =
+                actix_web::web::Path::<MemberIDInPath>::from_request(&req, &mut Payload::None)
+                    .await?
+                    .member_id;
+
+            FamilyAndMemberInPath::load_member_from_path(family, member_id)
+                .await
+                .map_err(|e| {
+                    log::error!("Failed to extract member ID from URL! {}", e);
+                    actix_web::error::ErrorNotFound("Could not fetch member information!")
+                })
+        })
+    }
+}

geneit_backend/src/extractors/mod.rs

@@ -1 +1,2 @@
 pub mod family_extractor;
+pub mod member_extractor;