Go (Golang & Gin) Backend Integration

Go Standard Library / Gin Middleware

Perform non-blocking HTTP requests to the Cloudflare Edge KV namespace:

package main

import (
	"encoding/json"
	"fmt"
	"net/http"
	"time"
)

type ParityResult struct {
	Eligible           bool   `json:"eligible"`
	CountryCode        string `json:"countryCode"`
	CountryName        string `json:"countryName"`
	DiscountPercentage int    `json:"discountPercentage"`
	CouponCode         string `json:"couponCode"`
}

var httpClient = &http.Client{
	Timeout: 2 * time.Second,
}

func ResolveParity(projectID, clientIP string) (*ParityResult, error) {
	url := fmt.Sprintf("https://parityedge-edge-api.g-saichakri.workers.dev/v1/resolve?projectId=%s", projectID)
	req, err := http.NewRequest("GET", url, nil)
	if err != nil {
		return nil, err
	}
	req.Header.Set("CF-Connecting-IP", clientIP)

	resp, err := httpClient.Do(req)
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()

	var result ParityResult
	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
		return nil, err
	}
	return &result, nil
}