Adding upstream version 2.52.6.

Signed-off-by: Daniel Baumann <daniel@debian.org>

docs/api/middleware/requestid.md

@@ -0,0 +1,62 @@
+---
+id: requestid
+---
+
+# RequestID
+
+RequestID middleware for [Fiber](https://github.com/gofiber/fiber) that adds an identifier to the response.
+
+## Signatures
+
+```go
+func New(config ...Config) fiber.Handler
+```
+
+## Examples
+
+Import the middleware package that is part of the Fiber web framework
+
+```go
+import (
+  "github.com/gofiber/fiber/v2"
+  "github.com/gofiber/fiber/v2/middleware/requestid"
+)
+```
+
+After you initiate your Fiber app, you can use the following possibilities:
+
+```go
+// Initialize default config
+app.Use(requestid.New())
+
+// Or extend your config for customization
+app.Use(requestid.New(requestid.Config{
+    Header:    "X-Custom-Header",
+    Generator: func() string {
+        return "static-id"
+    },
+}))
+```
+
+## Config
+
+| Property   | Type                    | Description                                                                                       | Default        |
+|:-----------|:------------------------|:--------------------------------------------------------------------------------------------------|:---------------|
+| Next       | `func(*fiber.Ctx) bool` | Next defines a function to skip this middleware when returned true.                               | `nil`          |
+| Header     | `string`                | Header is the header key where to get/set the unique request ID.                                  | "X-Request-ID" |
+| Generator  | `func() string`         | Generator defines a function to generate the unique identifier.                                   | utils.UUID     |
+| ContextKey | `interface{}`           | ContextKey defines the key used when storing the request ID in the locals for a specific request. | "requestid"    |
+
+## Default Config
+The default config uses a fast UUID generator which will expose the number of
+requests made to the server. To conceal this value for better privacy, use the
+`utils.UUIDv4` generator.
+
+```go
+var ConfigDefault = Config{
+    Next:       nil,
+    Header:     fiber.HeaderXRequestID,
+	Generator:  utils.UUID,
+	ContextKey: "requestid",
+}
+```