Sorted out how to do views with Go html/template, how to put code in subdirectories for a namespace, and documented why Go's modules are so weird.

tools/tools.go

@@ -0,0 +1,59 @@
+package tools
+
+import (
+  "log"
+  "github.com/gofiber/fiber/v2"
+
+   _ "github.com/mattn/go-sqlite3"
+   "github.com/jmoiron/sqlx"
+   "github.com/go-playground/validator/v10"
+ )
+
+func SelectJson[T any](db *sqlx.DB, c *fiber.Ctx, err error, sql string, args ...interface{}) error {
+  if(err != nil) {
+    log.Fatalln(err)
+  }
+  var result []T
+
+  err = db.Select(&result, sql, args...)
+  if(err != nil) {
+    log.Fatalln(err);
+  }
+
+  return c.JSON(&result);
+}
+
+func GetJson[T any](db *sqlx.DB, c *fiber.Ctx, err error, sql string, args ...interface{}) error {
+  if(err != nil) {
+    log.Fatalln(err)
+  }
+  var result T
+
+  err = db.Get(&result, sql, args...)
+  if(err != nil) {
+    log.Fatalln(err);
+  }
+
+  return c.JSON(&result);
+}
+
+func GetThing[T any](c *fiber.Ctx) (*T, error) {
+  var result *T
+  result = new(T)
+
+  if err := c.BodyParser(result); err != nil {
+    log.Println(err);
+    return result, err
+  }
+
+  var validate *validator.Validate
+  validate = validator.New(validator.WithRequiredStructEnabled())
+
+  if err := validate.Struct(result); err != nil {
+    validationErrors := err.(validator.ValidationErrors)
+    log.Println(validationErrors)
+    return result, err
+  }
+
+  return result, nil
+}