feat(backend): add option to disable postgres connection pooling

Foxnouns.Backend/Config.cs

@@ -36,6 +36,7 @@ public class Config
     public class DatabaseConfig
     {
         public string Url { get; init; } = string.Empty;
+        public bool? EnablePooling { get; init; }
         public int? Timeout { get; init; }
         public int? MaxPoolSize { get; init; }
     }

Foxnouns.Backend/Database/DatabaseContext.cs

@@ -26,6 +26,7 @@ public class DatabaseContext : DbContext
     {
         var connString = new NpgsqlConnectionStringBuilder(config.Database.Url)
         {
+            Pooling = config.Database.EnablePooling ?? true,
             Timeout = config.Database.Timeout ?? 5,
             MaxPoolSize = config.Database.MaxPoolSize ?? 50,
             MinPoolSize = 0,

Foxnouns.Backend/config.example.ini

@@ -30,6 +30,8 @@ MetricsPort = 5001
 [Database]
 ; The database URL in ADO.NET format.
 Url = "Host=localhost;Database=foxnouns_net;Username=pronouns;Password=pronouns"
+; Whether to enable connection pooling. This should be turned off if using pgbouncer. Defaults to true.
+EnablePooling = true
 ; The timeout for opening new connections. Defaults to 5.
 Timeout = 5
 ; The maximum number of open connections. Defaults to 50.

rate/handler.go

@@ -25,6 +25,7 @@ type Handler struct {
 	Port        int    `json:"port"`
 	ProxyTarget string `json:"proxy_target"`
 	Debug       bool   `json:"debug"`
+	PoweredBy   string `json:"powered_by"`
 
 	limiter *Limiter
 	proxy   *httputil.ReverseProxy
@@ -32,6 +33,10 @@ type Handler struct {
 }
 
 func (hn *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	if hn.PoweredBy != "" {
+		w.Header().Set("X-Powered-By", hn.PoweredBy)
+	}
+
 	// all public api endpoints are prefixed with this
 	if !strings.HasPrefix(r.URL.Path, "/api/v2") {
 		w.WriteHeader(http.StatusNotFound)

rate/proxy-config.example.json

@@ -1,5 +1,6 @@
 {
     "port": 5003,
     "proxy_target": "http://localhost:5000",
-    "debug": true
+    "debug": true,
+    "powered_by": "5 gay rats"
 }