response_writer use new Writer API

Author: jiacai2050

.fdignore

@@ -1 +1 @@
-zig 0.14.1
+zig 0.15.1

.gitattributes

@@ -1,10 +1,10 @@
 #+TITLE: zig-curl
 #+DATE: 2023-09-16T23:16:15+0800
-#+LASTMOD: 2025-08-24T10:24:23+0800
+#+LASTMOD: 2025-09-14T21:23:40+0800
 #+OPTIONS: toc:nil num:nil
 #+STARTUP: content
 
-[[https://img.shields.io/badge/zig%20version-0.15.0-blue.svg]]
+[[https://img.shields.io/badge/zig%20version-0.15.1-blue.svg]]
 [[https://img.shields.io/badge/zig%20version-master-blue.svg]]
 [[https://github.com/jiacai2050/zig-curl/actions/workflows/CI.yml][https://github.com/jiacai2050/zig-curl/actions/workflows/CI.yml/badge.svg]]
 [[https://ci.codeberg.org/repos/13257][https://ci.codeberg.org/api/badges/13257/status.svg]]
@@ -18,7 +18,7 @@ The vendored libraries consist of:
 | zlib    | [[https://github.com/madler/zlib/tree/v1.3.1][1.3.1]]   |
 | mbedtls | [[https://github.com/Mbed-TLS/mbedtls/tree/v3.6.0][3.6.0]]   |
 
-* Usage
+- Usage
 #+begin_src bash :results verbatim :exports results :wrap src zig
 cat examples/hello.zig
 #+end_src
@@ -40,15 +40,15 @@ pub fn main() !void {
     });
     defer easy.deinit();
 
-    var writer = curl.ResizableResponseWriter.init(allocator);
+    var writer = std.Io.Writer.Allocating.init(allocator);
     defer writer.deinit();
     const resp = try easy.fetch("https://httpbin.org/anything", .{
-        .response_writer = writer.asAny(),
+        .writer = &writer.writer,
     });
 
     std.debug.print("Status code: {d}\nBody: {s}\n", .{
         resp.status_code,
-        writer.asSlice(),
+        writer.writer.buffered(),
     });
 }
 #+end_src

.tool-versions

@@ -1,7 +1,7 @@
 .{
     .name = .curl,
     .fingerprint = 0x3e01b4de1538b3f,
-    .version = "0.3.0",
+    .version = "0.3.1",
     .paths = .{
         "src",
         "libs",

README.org

@@ -41,20 +41,20 @@ fn putWithCustomHeader(allocator: Allocator, easy: Easy) !void {
     try easy.setVerbose(true);
     try easy.setPostFields(body);
 
-    var writer = curl.ResizableResponseWriter.init(allocator);
+    var writer = std.Io.Writer.Allocating.init(allocator);
     defer writer.deinit();
-    try easy.setAnyWriter(&writer.asAny());
+    try easy.setWriter(&writer.writer);
 
     const resp = try easy.perform();
     std.debug.print("Status code: {d}\nBody: {s}\n", .{
         resp.status_code,
-        writer.asSlice(),
+        writer.writer.buffered(),
     });
 
     const parsed = try std.json.parseFromSlice(
         Response,
         allocator,
-        writer.asSlice(),
+        writer.writer.buffered(),
         .{ .ignore_unknown_fields = true },
     );
     defer parsed.deinit();
@@ -103,12 +103,13 @@ fn postMultiPart(allocator: Allocator, easy: Easy) !void {
     try easy.setMultiPart(multi_part);
     try easy.setVerbose(true);
 
-    var writer = curl.ResizableResponseWriter.init(allocator);
+    var writer = std.Io.Writer.Allocating.init(allocator);
     defer writer.deinit();
-    try easy.setAnyWriter(&writer.asAny());
+
+    try easy.setWriter(&writer.writer);
 
     const resp = try easy.perform();
-    std.debug.print("code: {d}, resp:{s}\n", .{ resp.status_code, writer.asSlice() });
+    std.debug.print("code: {d}, resp:{s}\n", .{ resp.status_code, writer.writer.buffered() });
 }
 
 pub fn main() !void {

build.zig.zon

@@ -18,13 +18,13 @@ fn get(easy: Easy) !void {
     {
         println("GET with fixed buffer");
         var buffer: [1024]u8 = undefined;
-        var writer = curl.FixedResponseWriter.init(&buffer);
+        var writer = std.Io.Writer.fixed(&buffer);
         const resp = try easy.fetch("https://httpbin.org/anything", .{
-            .response_writer = writer.asAny(),
+            .writer = &writer,
         });
         std.debug.print("Status code: {d}\nBody: {s}\n", .{
             resp.status_code,
-            writer.asSlice(),
+            writer.buffered(),
         });
     }
 }
@@ -33,7 +33,8 @@ fn post(allocator: Allocator, easy: Easy) !void {
     const payload =
         \\{"name": "John", "age": 15}
     ;
-    var writer = curl.ResizableResponseWriter.init(allocator);
+
+    var writer = std.Io.Writer.Allocating.init(allocator);
     defer writer.deinit();
     const resp = try easy.fetch(
         "https://httpbin.org/anything",
@@ -43,26 +44,27 @@ fn post(allocator: Allocator, easy: Easy) !void {
             .headers = &.{
                 "Content-Type: application/json",
             },
-            .response_writer = writer.asAny(),
+            .writer = &writer.writer,
         },
     );
 
     std.debug.print("Status code: {d}\nBody: {s}\n", .{
         resp.status_code,
-        writer.asSlice(),
+        writer.writer.buffered(),
     });
 }
 
 fn upload(allocator: Allocator, easy: Easy) !void {
     const path = "LICENSE";
-    var writer = curl.ResizableResponseWriter.init(allocator);
+    var writer = std.Io.Writer.Allocating.init(allocator);
+
     defer writer.deinit();
 
-    const resp = try easy.upload(LOCAL_SERVER_ADDR ++ "/anything", path, writer.asAny());
+    const resp = try easy.upload(LOCAL_SERVER_ADDR ++ "/anything", path, &writer.writer);
 
     std.debug.print("Status code: {d}\nBody: {s}\n", .{
         resp.status_code,
-        writer.asSlice(),
+        writer.writer.buffered(),
     });
 }
 

examples/advanced.zig

@@ -13,14 +13,14 @@ pub fn main() !void {
     });
     defer easy.deinit();
 
-    var writer = curl.ResizableResponseWriter.init(allocator);
+    var writer = std.Io.Writer.Allocating.init(allocator);
     defer writer.deinit();
     const resp = try easy.fetch("https://httpbin.org/anything", .{
-        .response_writer = writer.asAny(),
+        .writer = &writer.writer,
     });
 
     std.debug.print("Status code: {d}\nBody: {s}\n", .{
         resp.status_code,
-        writer.asSlice(),
+        writer.writer.buffered(),
     });
 }

examples/basic.zig

@@ -7,12 +7,12 @@ const Easy = curl.Easy;
 const Multi = curl.Multi;
 const c = curl.libcurl;
 const checkCode = curl.checkCode;
-const AnyWriter = std.io.AnyWriter;
+const Writer = std.io.Writer;
 
-fn newEasy(writer: *curl.ResizableResponseWriter, any_writer: *const AnyWriter, url: [:0]const u8) !Easy {
+fn newEasy(writer: *Writer, url: [:0]const u8) !Easy {
     const easy = try Easy.init(.{});
     try easy.setUrl(url);
-    try easy.setAnyWriter(any_writer);
+    try easy.setWriter(writer);
     // CURLOPT_PRIVATE allows us to store a pointer to the ctx in the easy handle
     // so we can retrieve it later in the callback.
     try easy.setPrivate(writer);
@@ -28,15 +28,13 @@ pub fn main() !void {
     const multi = try Multi.init();
     defer multi.deinit();
 
-    var wtr1 = curl.ResizableResponseWriter.init(allocator);
+    var wtr1 = std.Io.Writer.Allocating.init(allocator);
     defer wtr1.deinit();
-    const any_writer1: AnyWriter = wtr1.asAny();
-    var wtr2 = curl.ResizableResponseWriter.init(allocator);
+    var wtr2 = std.Io.Writer.Allocating.init(allocator);
     defer wtr2.deinit();
-    const any_writer2: AnyWriter = wtr2.asAny();
 
-    try multi.addHandle(try newEasy(&wtr1, &any_writer1, "http://httpbin.org/headers"));
-    try multi.addHandle(try newEasy(&wtr2, &any_writer2, "http://httpbin.org/ip"));
+    try multi.addHandle(try newEasy(&wtr1.writer, "http://httpbin.org/headers"));
+    try multi.addHandle(try newEasy(&wtr2.writer, "http://httpbin.org/ip"));
 
     var keep_running = true;
     while (keep_running) {
@@ -72,8 +70,8 @@ pub fn main() !void {
         // Get the private data (buffer) associated with this handle
         var private_data: ?*anyopaque = null;
         try checkCode(c.curl_easy_getinfo(easy_handle, c.CURLINFO_PRIVATE, &private_data));
-        const writer: *curl.ResizableResponseWriter = @ptrCast(@alignCast(private_data.?));
+        const writer: *Writer = @ptrCast(@alignCast(private_data.?));
 
-        std.debug.print("Response body: {s}\n", .{writer.asSlice()});
+        std.debug.print("Response body: {s}\n", .{writer.buffered()});
     }
 }

examples/hello.zig

@@ -8,7 +8,6 @@ pub fn create(b: *std.Build, target: std.Build.ResolvedTarget, optimize: std.bui
             .target = target,
             .optimize = optimize,
             .link_libc = true,
-            .root_source_file = null,
         }),
     });
     const curl_dep = b.lazyDependency("curl", .{