add vehicle api (#221)

* add vehicle api

* Commit from GitHub Actions (Publish APIs & Clients)

Co-authored-by: asim <asim@users.noreply.github.com>

vehicle/handler/vehicle.go

@@ -0,0 +1,64 @@
+package handler
+
+import (
+	"context"
+
+	"github.com/micro/services/pkg/api"
+	"github.com/micro/micro/v3/service/errors"
+	"github.com/micro/micro/v3/service/logger"
+	pb "github.com/micro/services/vehicle/proto"
+)
+
+var (
+	apiURL = "https://driver-vehicle-licensing.api.gov.uk/vehicle-enquiry/v1/vehicles"
+)
+
+type Vehicle struct{
+	Key string
+}
+
+func New(key string) *Vehicle {
+	api.SetKey("x-api-key", key)
+
+	return &Vehicle{
+		Key: key,
+	}
+}
+
+func (v *Vehicle) Lookup(ctx context.Context, req *pb.LookupRequest, rsp *pb.LookupResponse) error {
+	if len(req.Registration) == 0 {
+		return errors.BadRequest("vehicle.lookup", "missing registration number")
+	}
+
+	var resp map[string]interface{}
+
+	if err := api.Post(apiURL, map[string]interface{}{
+		"registrationNumber": req.Registration,
+	}, &resp); err != nil {
+		logger.Errorf("Failed to lookup vehicle %v: %v", req.Registration, err)
+		return errors.InternalServerError("vehicle.lookup", "Failed to lookup vehicle")
+	}
+
+	rsp.Registration = resp["registrationNumber"].(string)
+	rsp.Make = resp["make"].(string)
+	rsp.Co2Emissions = resp["co2Emissions"].(float64)
+	rsp.Colour = resp["colour"].(string)
+	rsp.YearOfManufacture = int32(resp["yearOfManufacture"].(float64))
+	rsp.EngineCapacity = int32(resp["engineCapacity"].(float64))
+	rsp.FuelType = resp["fuelType"].(string)
+	rsp.MonthOfFirstRegistration = resp["monthOfFirstRegistration"].(string)
+	rsp.MotStatus = resp["motStatus"].(string)
+
+	if v := resp["motExpiryDate"]; v != nil {
+		rsp.MotExpiry = v.(string)
+	}
+
+	rsp.TaxDueDate = resp["taxDueDate"].(string)
+	rsp.TaxStatus = resp["taxStatus"].(string)
+	rsp.TypeApproval = resp["typeApproval"].(string)
+	rsp.Wheelplan = resp["wheelplan"].(string)
+	rsp.LastV5Issued = resp["dateOfLastV5CIssued"].(string)
+
+	return nil
+}
+