NdoleStudio / flutterwave-go

package flutterwave

import (

	"context"

	"encoding/json"

	"errors"

	"net/http"

	"strconv"

)

// transfersService is the API client for the `/v3/transfers` endpoint

type transfersService service

// Estimate the Transfer Rate of a transaction

//

// API Docs: https://developer.flutterwave.com/reference/check-transfer-rates

func (service *transfersService) Rate(ctx context.Context, amount int, destination_currency, source_currency string) (*TransferRateResponse, *Response, error) {

	uri := "/v3/transfers/rates"

	request, err := service.client.newRequest(ctx, http.MethodGet, uri, nil)

	if err != nil {

		return nil, nil, errors.Join(ErrCouldNotConstructNewRequest, err)

	}

	// Adding the parameters

	requestWithParams := service.client.addURLParams(request, map[string]string{

		"amount": strconv.Itoa(amount),

		"destination_currency": destination_currency,

		"source_currency": source_currency,

	})

	response, err := service.client.do(requestWithParams)

	if err != nil {

		return nil, response, errors.Join(ErrRequestFailure, err)

	}

	var data TransferRateResponse

	if err = json.Unmarshal(*response.Body, &data); err != nil {

		return nil, response, errors.Join(ErrUnmarshalFailure, err)

	}

	return &data, response, nil

}