passageidentity · mattn · Apr 5, 2024 · Apr 5, 2024
diff --git a/04-Echo/go.mod b/04-Echo/go.mod
@@ -0,0 +1,34 @@
+module github.com/passageidentity/example-go
+
+go 1.17
+
+require (
+	github.com/labstack/echo/v4 v4.11.4
+	github.com/passageidentity/passage-go v1.11.0
+)
+
+require (
+	github.com/apapsch/go-jsonmerge/v2 v2.0.0 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/golang-jwt/jwt v3.2.2+incompatible // indirect
+	github.com/google/uuid v1.3.1 // indirect
+	github.com/labstack/gommon v0.4.2 // indirect
+	github.com/lestrrat-go/backoff/v2 v2.0.8 // indirect
+	github.com/lestrrat-go/blackmagic v1.0.1 // indirect
+	github.com/lestrrat-go/httpcc v1.0.1 // indirect
+	github.com/lestrrat-go/iter v1.0.2 // indirect
+	github.com/lestrrat-go/jwx v1.2.26 // indirect
+	github.com/lestrrat-go/option v1.0.1 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/oapi-codegen/runtime v1.0.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasttemplate v1.2.2 // indirect
+	golang.org/x/crypto v0.17.0 // indirect
+	golang.org/x/net v0.19.0 // indirect
+	golang.org/x/sys v0.15.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/time v0.5.0 // indirect
+)
diff --git a/04-Echo/go.sum b/04-Echo/go.sum
diff --git a/04-Echo/main.go b/04-Echo/main.go
@@ -0,0 +1,87 @@
+package main
+
+import (
+	"embed"
+	"html/template"
+	"io"
+	"net/http"
+	"os"
+
+	"github.com/labstack/echo/v4"
+	"github.com/labstack/echo/v4/middleware"
+	"github.com/passageidentity/passage-go"
+)
+
+var (
+	passageAppID  = os.Getenv("PASSAGE_APP_ID")
+	passageApiKey = os.Getenv("PASSAGE_API_KEY")
+
+	//go:embed static
+	assets embed.FS
+)
+
+func authRequired(next echo.HandlerFunc) echo.HandlerFunc {
+	return func(c echo.Context) error {
+		psg, err := passage.New(passageAppID, &passage.Config{
+			APIKey: passageApiKey,
+		})
+		if err != nil {
+			// This should not fail, but abort the request if it does
+			c.Echo().Logger.Debug(err)
+			return c.NoContent(http.StatusInternalServerError)
+		}
+		passageUserID, err := psg.AuthenticateRequest(c.Request())
+		if err != nil {
+			// Authentication failed!
+			return c.Render(http.StatusOK, "unauthorized", nil)
+		}
+
+		// Get the authenticated user's email and set it in the context
+		passageUser, err := psg.GetUser(passageUserID)
+		if err != nil {
+			// This should not fail, but abort the request if it does
+			c.Echo().Logger.Debug(err)
+			return c.String(http.StatusInternalServerError, err.Error())
+		}
+		c.Set("userEmail", passageUser.Email)
+
+		// Authentication was successful, proceed.
+		return next(c)
+	}
+}
+
+type TemplateRender struct {
+	templates *template.Template
+}
+
+func (t *TemplateRender) Render(w io.Writer, name string, data interface{}, c echo.Context) error {
+	return t.templates.ExecuteTemplate(w, name, data)
+}
+
+func main() {
+	e := echo.New()
+	e.Use(middleware.Logger())
+	e.Use(middleware.Recover())
+	e.Use(middleware.Gzip())
+	e.Debug = true
+
+	renderer := &TemplateRender{
+		templates: template.Must(template.ParseFS(assets, "static/*.tmpl")),
+	}
+	e.Renderer = renderer
+
+	e.GET("/", func(c echo.Context) error {
+		return c.Render(http.StatusOK, "index", map[string]any{
+			"AppID": passageAppID,
+		})
+	})
+
+	group := e.Group("", authRequired)
+	group.GET("/dashboard", func(c echo.Context) error {
+		return c.Render(http.StatusOK, "dashboard", map[string]any{
+			"email": c.Get("userEmail").(string),
+		})
+	})
+
+	e.Logger.Fatal(e.Start(":8080"))
+}
diff --git a/04-Echo/static/dashboard.tmpl b/04-Echo/static/dashboard.tmpl
@@ -0,0 +1,18 @@
+{{define "dashboard"}}
+<!DOCTYPE html>
+<html>
+<head>
+    <title>Gin + Passage</title>
+</head>
+<body>
+    <h1>You're signed in, {{ .email }}!</h1>
+
+    <style>
+        body {
+            text-align: center;
+            font-family: sans-serif;
+        }
+    </style>
+</body>
+</html>
+{{end}}
diff --git a/04-Echo/static/index.tmpl b/04-Echo/static/index.tmpl
@@ -0,0 +1,21 @@
+{{define "index"}}
+<!DOCTYPE html>
+<html>
+<head>
+    <title>Gin + Passage</title>
+</head>
+<body>
+    <h1>Welcome to my gin app!</h1>
+
+    <passage-auth app-id="{{.AppID}}"></passage-auth>
+    <script src="https://psg.so/web.js"></script>
+
+    <style>
+        body {
+            text-align: center;
+            font-family: sans-serif;
+        }
+    </style>
+</body>
+</html>
+{{end}}
diff --git a/04-Echo/static/unauthorized.tmpl b/04-Echo/static/unauthorized.tmpl
@@ -0,0 +1,22 @@
+{{define "unauthorized"}}
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+<body>
+    <h1>You can't be here!</h1>
+    <a href="/">Go Home →</a>
+
+    <style>
+        body {
+            text-align: center;
+            font-family: sans-serif;
+        }
+    </style>
+</body>
+</html>
+{{end}}
diff --git a/README.md b/README.md
@@ -11,3 +11,5 @@ Passage is an authentication platform that enables developers to add biometric a
 ## Examples in this Repo
 * [Authenticating with Passage](01-Login/)
 * [Authentication with a Profile Page](02-Login-With-Profile/)
+* [Example app using Gin](03-Gin/)
+* [Example app using Echo](04-Echo/)