From a641dcc0827ac765d11c99e684e64e45104faa57 Mon Sep 17 00:00:00 2001
From: Ed Yu <edyu@users.noreply.github.com>
Date: Tue, 16 May 2023 14:34:47 -0700
Subject: [PATCH] add http method PATCH for endpoint listener

---
 examples/endpoint/endpoint.zig    |  1 +
 examples/endpoint/html/index.html | 11 +++++------
 src/endpoint.zig                  | 24 ++++++++++++++++++++++++
 3 files changed, 30 insertions(+), 6 deletions(-)

diff --git a/examples/endpoint/endpoint.zig b/examples/endpoint/endpoint.zig
index 6335075..b4e9f7f 100644
--- a/examples/endpoint/endpoint.zig
+++ b/examples/endpoint/endpoint.zig
@@ -23,6 +23,7 @@ pub fn init(
             .get = getUser,
             .post = postUser,
             .put = putUser,
+            .patch = putUser,
             .delete = deleteUser,
         }),
     };
diff --git a/examples/endpoint/html/index.html b/examples/endpoint/html/index.html
index 9206349..9f21038 100644
--- a/examples/endpoint/html/index.html
+++ b/examples/endpoint/html/index.html
@@ -174,26 +174,25 @@
                 getUserList();
             })
             .catch((error) => {
-                log("Error posting data");
+                log("Error deleting data");
             });
         }
 
         function changeUser(id) {
-            var firstname = document.getElementById("first_" + id);
-            firstname = firstname.value;
+            const firstname = document.getElementById("first_" + id).value;
             const lastname = document.getElementById("last_" + id).value;
             data = {
                 first_name: firstname,
                 last_name: lastname,
             }
-            sendJSON(data, "/users/" + id, "PUT")
+            sendJSON(data, "/users/" + id, "PATCH")
             .then((response) => response.json())
             .then((data) => {
                 log("SUCESS: " + JSON.stringify(data));
                 getUserList();
             })
             .catch((error) => {
-                log("Error posting data");
+                log("Error updating data");
             });
         }
 
@@ -249,7 +248,7 @@
                 showTable(data);
             })
             .catch((error) => {
-                log("Error posting data");
+                log("Error fetching data");
             });
         }
 
diff --git a/src/endpoint.zig b/src/endpoint.zig
index f84937a..499dc57 100644
--- a/src/endpoint.zig
+++ b/src/endpoint.zig
@@ -13,6 +13,7 @@ pub const SimpleEndpointSettings = struct {
     post: ?RequestFn = null,
     put: ?RequestFn = null,
     delete: ?RequestFn = null,
+    patch: ?RequestFn = null,
     /// only applicable to AuthenticatingEndpoint
     unauthorized: ?RequestFn = null,
 };
@@ -30,6 +31,7 @@ pub const SimpleEndpoint = struct {
                 .post = s.post orelse &nop,
                 .put = s.put orelse &nop,
                 .delete = s.delete orelse &nop,
+                .patch = s.patch orelse &nop,
                 .unauthorized = s.unauthorized orelse &nop,
             },
         };
@@ -50,6 +52,8 @@ pub const SimpleEndpoint = struct {
                 return self.settings.put.?(self, r);
             if (std.mem.eql(u8, m, "DELETE"))
                 return self.settings.delete.?(self, r);
+            if (std.mem.eql(u8, m, "PATCH"))
+                return self.settings.patch.?(self, r);
         }
     }
 };
@@ -74,6 +78,7 @@ pub fn AuthenticatingEndpoint(comptime Authenticator: type) type {
                     .post = if (e.settings.post != null) post else null,
                     .put = if (e.settings.put != null) put else null,
                     .delete = if (e.settings.delete != null) delete else null,
+                    .patch = if (e.settings.patch != null) patch else null,
                     .unauthorized = e.settings.unauthorized,
                 }),
             };
@@ -161,6 +166,25 @@ pub fn AuthenticatingEndpoint(comptime Authenticator: type) type {
                 .Handled => {},
             }
         }
+
+        /// here, the auth_endpoint will be passed in
+        pub fn patch(e: *SimpleEndpoint, r: zap.SimpleRequest) void {
+            const authEp: *Self = @fieldParentPtr(Self, "auth_endpoint", e);
+            switch (authEp.authenticator.authenticateRequest(&r)) {
+                .AuthFailed => {
+                    if (e.settings.unauthorized) |unauthorized| {
+                        unauthorized(authEp.endpoint, r);
+                        return;
+                    } else {
+                        r.setStatus(.unauthorized);
+                        r.sendBody("UNAUTHORIZED") catch return;
+                        return;
+                    }
+                },
+                .AuthOK => authEp.endpoint.settings.patch.?(authEp.endpoint, r),
+                .Handled => {},
+            }
+        }
     };
 }