Go Gin Middleware Email Verification Guide

Add real-time email verification and disposable-email blocking to Go Gin Middleware with the VeriShield Edge API. The snippet below gates a signup and returns the canonical email identity.

Language

Go 1.22

Ecosystem

Gin / net-http

Latency

< 85ms

Install

Shell

go get github.com/gin-gonic/gin

Verification code

Go 1.22

func VeriShieldGuard() gin.HandlerFunc {
    return func(c *gin.Context) {
        var body struct{ Email string `json:"email"` }
        if err := c.ShouldBindJSON(&body); err != nil {
            c.AbortWithStatus(400); return
        }
        payload, _ := json.Marshal(map[string]string{"email": body.Email})
        req, _ := http.NewRequest("POST", "https://verishield-edge-api.p.rapidapi.com/v1/verify", bytes.NewReader(payload))
        req.Header.Set("X-RapidAPI-Key", os.Getenv("RAPIDAPI_KEY"))
        resp, err := http.DefaultClient.Do(req)
        if err != nil { c.AbortWithStatus(502); return }
        defer resp.Body.Close()
        var report map[string]any
        json.NewDecoder(resp.Body).Decode(&report)
        risk := report["fraud_risk"].(map[string]any)
        if risk["recommendation"] == "BLOCK" { c.AbortWithStatus(403); return }
        c.Next()
    }
}

What this protects against

Disposable and temporary inboxes, Gmail dot-trick and plus-alias multi-accounting, high-entropy bot usernames, and freshly registered fraud domains. The API returns a 0-100 fraud score with an ALLOW, CHALLENGE_2FA or BLOCK recommendation.

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