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f725ded92b
* Rename UserContext() to Context(). Rename Context() to RequestCtx() * feat: add requestID in UserContext * Update Ctxt docs and What's new * Remove extra blank lines * ♻️ Refactor: merge issue #3186 * 🔥 Feature: improve FromContext func and test * 📚 Doc: improve requestid middleware * ♻️ Refactor: Rename interface to any * fix: Modify structure sorting to reduce memory usage --------- Co-authored-by: Juan Calderon-Perez <jgcalderonperez@protonmail.com> Co-authored-by: Juan Calderon-Perez <835733+gaby@users.noreply.github.com>
83 lines
2.3 KiB
Markdown
83 lines
2.3 KiB
Markdown
---
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id: requestid
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---
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# RequestID
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RequestID middleware for [Fiber](https://github.com/gofiber/fiber) that adds an identifier to the response.
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## Signatures
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```go
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func New(config ...Config) fiber.Handler
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func FromContext(c fiber.Ctx) string
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```
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## Examples
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Import the middleware package that is part of the Fiber web framework
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```go
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import (
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"github.com/gofiber/fiber/v3"
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"github.com/gofiber/fiber/v3/middleware/requestid"
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)
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```
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After you initiate your Fiber app, you can use the following possibilities:
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```go
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// Initialize default config
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app.Use(requestid.New())
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// Or extend your config for customization
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app.Use(requestid.New(requestid.Config{
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Header: "X-Custom-Header",
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Generator: func() string {
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return "static-id"
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},
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}))
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```
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Getting the request ID
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```go
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func handler(c fiber.Ctx) error {
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id := requestid.FromContext(c)
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log.Printf("Request ID: %s", id)
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return c.SendString("Hello, World!")
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}
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```
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In version v3, Fiber will inject `requestID` into the built-in `Context` of Go.
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```go
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func handler(c fiber.Ctx) error {
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id := requestid.FromContext(c.Context())
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log.Printf("Request ID: %s", id)
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return c.SendString("Hello, World!")
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}
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```
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## Config
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| Property | Type | Description | Default |
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|:-----------|:------------------------|:--------------------------------------------------------------------------------------------------|:---------------|
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| Next | `func(fiber.Ctx) bool` | Next defines a function to skip this middleware when returned true. | `nil` |
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| Header | `string` | Header is the header key where to get/set the unique request ID. | "X-Request-ID" |
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| Generator | `func() string` | Generator defines a function to generate the unique identifier. | utils.UUID |
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## Default Config
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The default config uses a fast UUID generator which will expose the number of
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requests made to the server. To conceal this value for better privacy, use the
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`utils.UUIDv4` generator.
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```go
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var ConfigDefault = Config{
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Next: nil,
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Header: fiber.HeaderXRequestID,
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Generator: utils.UUID,
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}
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```
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