initial json 1.1 support

README.md

@@ -101,7 +101,8 @@ TODO List:
 (new 2021-05-29. I will proceed in this order unless I get other requests)
 * ✓ Implement [AWS query protocol](https://awslabs.github.io/smithy/1.0/spec/aws/aws-query-protocol.html). This is the protocol in use by sts.getcalleridentity. Total service count 18
 * ✓ Implement [AWS Json 1.0 protocol](https://awslabs.github.io/smithy/1.0/spec/aws/aws-json-1_0-protocol.html). Includes dynamodb. Total service count 18
-* Implement [AWS Json 1.1 protocol](https://awslabs.github.io/smithy/1.0/spec/aws/aws-json-1_1-protocol.html). Includes ecs. Total service count 105
+* ✓ Implement [AWS Json 1.1 protocol](https://awslabs.github.io/smithy/1.0/spec/aws/aws-json-1_1-protocol.html). Includes ecs. Total service count 105
+* Implement [AWS Rest Json 1 protocol](https://awslabs.github.io/smithy/1.0/spec/aws/aws-restjson1-protocol.html). Includes lambda. Total service count 127
 * Implement [AWS restXml protocol](https://awslabs.github.io/smithy/1.0/spec/aws/aws-restxml-protocol.html). Includes S3. Total service count 4. This may be blocked due to the same issue as EC2.
 * Implement [AWS EC2 query protocol](https://awslabs.github.io/smithy/1.0/spec/aws/aws-ec2-query-protocol.html). Includes EC2. Total service count 1. This is currently blocked, probably on self-hosted compiler coming in zig 0.9.0 (January 2022) due to compiler bug discovered. More details and llvm ir log can be found in the [XML branch](https://git.lerch.org/lobo/aws-sdk-for-zig/src/branch/xml).
 

codegen/src/main.zig

@@ -85,6 +85,7 @@ fn generateServices(allocator: *std.mem.Allocator, comptime _: []const u8, file:
     for (services.items) |service| {
         var sdk_id: []const u8 = undefined;
         var version: []const u8 = service.shape.service.version;
+        var name: []const u8 = service.name;
         var arn_namespace: []const u8 = undefined;
         var sigv4_name: []const u8 = undefined;
         var endpoint_prefix: []const u8 = undefined;
@@ -114,6 +115,7 @@ fn generateServices(allocator: *std.mem.Allocator, comptime _: []const u8, file:
         try writer.print("pub const arn_namespace: []const u8 = \"{s}\";\n", .{arn_namespace});
         try writer.print("pub const endpoint_prefix: []const u8 = \"{s}\";\n", .{endpoint_prefix});
         try writer.print("pub const sigv4_name: []const u8 = \"{s}\";\n", .{sigv4_name});
+        try writer.print("pub const name: []const u8 = \"{s}\";\n", .{name});
         // TODO: This really should just be ".whatevs". We're fully qualifying here, which isn't typical
         try writer.print("pub const aws_protocol: smithy.AwsProtocol = smithy.{s};\n\n", .{aws_protocol});
         _ = try writer.write("pub const service_metadata : struct {\n");
@@ -122,6 +124,7 @@ fn generateServices(allocator: *std.mem.Allocator, comptime _: []const u8, file:
         try writer.print("    arn_namespace: []const u8 = \"{s}\",\n", .{arn_namespace});
         try writer.print("    endpoint_prefix: []const u8 = \"{s}\",\n", .{endpoint_prefix});
         try writer.print("    sigv4_name: []const u8 = \"{s}\",\n", .{sigv4_name});
+        try writer.print("    name: []const u8 = \"{s}\",\n", .{name});
         // TODO: This really should just be ".whatevs". We're fully qualifying here, which isn't typical
         try writer.print("    aws_protocol: smithy.AwsProtocol = smithy.{s},\n", .{aws_protocol});
         _ = try writer.write("} = .{};\n");

src/aws.zig

@@ -72,19 +72,9 @@ pub const Aws = struct {
 
     /// Calls using one of the json protocols (rest_json_1, json_1_0, json_1_1
     fn callJson(self: Self, comptime request: anytype, comptime service_meta: anytype, action: anytype, options: Options) !FullResponse(request) {
-        // Target might be a problem. The smithy docs differ fairly significantly
-        // from the REST API examples. Here I'm following the REST API examples
-        // as they have not yet led me astray. Whether they're consistent
-        // across other services is another matter...
-        var version = try self.allocator.alloc(u8, service_meta.version.len);
-        defer self.allocator.free(version);
-        const replacements = std.mem.replace(u8, service_meta.version, "-", "", version);
-        // Resize the version, otherwise the junk at the end will mess with allocPrint
-        version = try self.allocator.resize(version, version.len - replacements);
         const target =
-            try std.fmt.allocPrint(self.allocator, "{s}_{s}.{s}", .{
-            service_meta.sdk_id,
-            version,
+            try std.fmt.allocPrint(self.allocator, "{s}.{s}", .{
+            service_meta.name,
             action.action_name,
         });
         defer self.allocator.free(target);
@@ -96,7 +86,11 @@ pub const Aws = struct {
         // can guarantee we don't need the memory after this call completes,
         // so we'll use an arena allocator to whack everything.
         // TODO: Determine if sending in null values is ok, or if we need another
-        //       tweak to the stringify function to exclude
+        //       tweak to the stringify function to exclude. According to the
+        //       smithy spec, "A null value MAY be provided or omitted
+        //       for a boxed member with no observable difference." But we're
+        //       seeing a lot of differences here between spec and reality
+        //
         var nameAllocator = std.heap.ArenaAllocator.init(self.allocator);
         defer nameAllocator.deinit();
         try json.stringify(request, .{ .whitespace = .{}, .allocator = &nameAllocator.allocator, .nameTransform = pascalTransformer }, buffer.writer());

src/main.zig

@@ -29,6 +29,8 @@ const Tests = enum {
     ec2_query_no_input,
     json_1_0_query_with_input,
     json_1_0_query_no_input,
+    json_1_1_query_with_input,
+    json_1_1_query_no_input,
 };
 
 pub fn main() anyerror!void {
@@ -67,7 +69,7 @@ pub fn main() anyerror!void {
     var client = aws.Aws.init(allocator);
     defer client.deinit();
 
-    const services = aws.Services(.{ .sts, .ec2, .dynamo_db }){};
+    const services = aws.Services(.{ .sts, .ec2, .dynamo_db, .ecs }){};
 
     for (tests.items) |t| {
         std.log.info("===== Start Test: {s} =====", .{@tagName(t)});
@@ -89,7 +91,6 @@ pub fn main() anyerror!void {
                 std.log.info("access key: {s}", .{access.response.credentials.?.access_key_id});
             },
             .json_1_0_query_with_input => {
-                // TODO: Find test without sensitive info
                 const tables = try client.call(services.dynamo_db.list_tables.Request{
                     .limit = 1,
                 }, options);
@@ -102,6 +103,20 @@ pub fn main() anyerror!void {
                 defer limits.deinit();
                 std.log.info("account read capacity limit: {d}", .{limits.response.account_max_read_capacity_units});
             },
+            .json_1_1_query_with_input => {
+                const clusters = try client.call(services.ecs.list_clusters.Request{
+                    .max_results = 1,
+                }, options);
+                defer clusters.deinit();
+                std.log.info("request id: {s}", .{clusters.response_metadata.request_id});
+                std.log.info("account has clusters: {b}", .{clusters.response.cluster_arns.?.len > 0});
+            },
+            .json_1_1_query_no_input => {
+                const clusters = try client.call(services.ecs.list_clusters.Request{}, options);
+                defer clusters.deinit();
+                std.log.info("request id: {s}", .{clusters.response_metadata.request_id});
+                std.log.info("account has clusters: {b}", .{clusters.response.cluster_arns.?.len > 0});
+            },
             .ec2_query_no_input => {
                 std.log.err("EC2 Test disabled due to compiler bug", .{});
                 // const instances = try client.call(services.ec2.describe_instances.Request{}, options);