The Best Go Library for VIN (Vehicle Identification Number) OCR

//  💰 Save 30%+ vs competitors. Get 200 free credits instantly:
// 👉 https://structocr.com/register

package main

import (
	"encoding/base64"
	"encoding/json"
	"fmt"
	"net/http"
	"os"
)

func main() {
	apiKey := "YOUR_API_KEY" // Replace with your actual API key
	imagePath := "./vin_image.jpg" // Replace with the path to your image

	// Read the image file
	imgBytes, err := os.ReadFile(imagePath)
	if err != nil {
		fmt.Println("Error reading file:", err)
		os.Exit(1)
	}

	// Encode the image bytes to base64
	imgBase64 := base64.StdEncoding.EncodeToString(imgBytes)

	// Create the request payload
	payload := map[string]string{"img": imgBase64}
	payloadBytes, err := json.Marshal(payload)
	if err != nil {
		fmt.Println("Error marshaling JSON:", err)
		os.Exit(1)
	}

	// Create a new HTTP request
	req, err := http.NewRequest("POST", "https://api.structocr.com/v1/vin", http.NewSectionReader(bytes.NewReader(payloadBytes), 0, int64(len(payloadBytes))))
	if err != nil {
		fmt.Println("Error creating request:", err)
		os.Exit(1)
	}

	// Set the headers
	req.Header.Set("x-api-key", apiKey)
	req.Header.Set("Content-Type", "application/json")

	// Make the API request
	client := &http.Client{}
	res, err := client.Do(req)
	if err != nil {
		fmt.Println("Error making API request:", err)
		os.Exit(1)
	}
	defer res.Body.Close()

	// Parse the response body
	var response map[string]interface{}
	err = json.NewDecoder(res.Body).Decode(&response)
	if err != nil {
		fmt.Println("Error decoding JSON response:", err)
		os.Exit(1)
	}

	// Print the full response
	fmt.Println("Full Response:", response)

	// Example of accessing data.  Check for errors first!
	if success, ok := response["success"].(bool); ok && success {
		if data, ok := response["data"].(map[string]interface{}); ok {
			vin, hasVin := data["vin"].(string)
			if hasVin {
				fmt.Println("VIN:", vin)
			}

			//Accessing the manufacturer from the 'attributes'
			// if attrs, ok := data["attributes"].(map[string]interface{}); ok {
			// 	if manufacturer, hasManufacturer := attrs["manufacturer"].(string); hasManufacturer {
			// 		fmt.Println("Manufacturer:", manufacturer)
			// 	}
			// }
		} else {
			fmt.Println("Error: 'data' field not found or is not a map.")
		}
	} else {
		fmt.Println("API call was not successful.")
		if msg, ok := response["error"].(string); ok{
			fmt.Println("Error Message:",msg)
		}
	}

}