Add config file

.gitignore

@@ -1,3 +1,4 @@
 **/zig-out
 **/zig-cache
 **.db
+/config.json

src/main/api.zig

@@ -2,10 +2,10 @@ const std = @import("std");
 const util = @import("util");
 
 const db = @import("./db.zig");
-
 const models = @import("./db/models.zig");
 pub const DateTime = util.DateTime;
 pub const Uuid = util.Uuid;
+const Config = @import("./main.zig").Config;
 
 const PwHash = std.crypto.pwhash.scrypt;
 const pw_hash_params = PwHash.Params.interactive;
@@ -101,13 +101,15 @@ pub fn initThreadPrng(seed: u64) void {
 pub const ApiSource = struct {
     db: db.Database,
     internal_alloc: std.mem.Allocator,
+    config: Config,
 
     pub const Conn = ApiConn(db.Database);
 
-    pub fn init(alloc: std.mem.Allocator) !ApiSource {
+    pub fn init(alloc: std.mem.Allocator, cfg: Config) !ApiSource {
         return ApiSource{
             .db = try db.Database.init(),
             .internal_alloc = alloc,
+            .config = cfg,
         };
     }
 

src/main/main.zig

@@ -34,11 +34,13 @@ const router = Router{
 pub const RequestServer = struct {
     alloc: std.mem.Allocator,
     api: api.ApiSource,
+    config: Config,
 
-    fn init(alloc: std.mem.Allocator) !RequestServer {
+    fn init(alloc: std.mem.Allocator, config: Config) !RequestServer {
         return RequestServer{
             .alloc = alloc,
-            .api = try api.ApiSource.init(alloc),
+            .api = try api.ApiSource.init(alloc, config),
+            .config = config,
         };
     }
 
@@ -63,9 +65,25 @@ pub const RequestServer = struct {
     }
 };
 
+pub const Config = struct {
+    host: []const u8,
+};
+
+fn loadConfig(alloc: std.mem.Allocator) !Config {
+    var file = try std.fs.cwd().openFile("config.json", .{});
+    defer file.close();
+
+    const bytes = try file.reader().readAllAlloc(alloc, 1 << 63);
+    defer alloc.free(bytes);
+
+    var ts = std.json.TokenStream.init(bytes);
+    return std.json.parse(Config, &ts, .{ .allocator = alloc });
+}
+
 pub fn main() anyerror!void {
     var gpa = std.heap.GeneralPurposeAllocator(.{}){};
-    var srv = try RequestServer.init(gpa.allocator());
+    const cfg = try loadConfig(gpa.allocator());
+    var srv = try RequestServer.init(gpa.allocator(), cfg);
     api.initThreadPrng(@bitCast(u64, std.time.milliTimestamp()));
     return srv.listenAndRun(std.net.Address.parseIp("0.0.0.0", 8080) catch unreachable);
 }