squash all commits for release

.gitignore

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+vendor
+.idea/
+
+# binary
+cdek
+
+# go test -coverprofile cover.out
+cover.out
+# go tool cover -html=cover.out -o cover.html
+cover.html

.golangci.yml

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+run:
+  # timeout for analysis, e.g. 30s, 5m, default is 1m
+  deadline: 2m
+linters:
+  enable-all: true
+  disable:
+    - scopelint
+    - dupl
+linters-settings:
+  misspell:
+    locale: US
+issues:
+  max-same: 0
+  max-per-linter: 0
+  exclude-use-default: false
+  exclude:
+    # gosec: Duplicated errcheck checks
+    - G104
+    # gosec: Variable url
+    - G107
+    # gosec: md5 needed by CDEK
+    - G501
+    # gosec: md5 needed by CDEK
+    - G401

CONTRIBUTING.md

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+# Contributing
+
+Feel free to browse the open issues and file new ones, all feedback welcome!
+
+We follow the [CNCF Code of Conduct](https://github.com/cncf/foundation/blob/master/code-of-conduct.md).
+
+We generally follow the standard [github pull request](https://help.github.com/articles/about-pull-requests/) process
+
+All changes must be code reviewed.
+Expect reviewers to request that you avoid [common go style
+mistakes](https://github.com/golang/go/wiki/CodeReviewComments) in your pull requests.

LICENSE

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+MIT License
+
+Copyright (c) 2019 vseinstrumenti.ru
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# GO SDK for CDEK API
+[![GoDoc reference](https://godoc.org/github.com/vseinstrumentiru/CDEK?status.svg)](https://godoc.org/github.com/vseinstrumentiru/CDEK) 
+[![Go Report Card](https://goreportcard.com/badge/github.com/vseinstrumentiru/CDEK)](https://goreportcard.com/report/github.com/vseinstrumentiru/CDEK)
+[![GitHub release](https://img.shields.io/github/release/vseinstrumentiru/cdek.svg)](https://github.com/vseinstrumentiru/CDEK/releases)
+
+The Go language implementation of SDK for [integration with CDEK](https://www.cdek.ru/clients/integrator.html)
+
+----
+Installation
+------------
+
+To install this package, you need to install Go and setup your Go workspace on
+your computer. The simplest way to install the library is to run:
+
+```
+$ go get github.com/vseinstrumentiru/cdek
+```
+With Go module support (Go 1.11+), simply `import "github.com/vseinstrumentiru/cdek"` in
+your source code and `go [build|run|test]` will automatically download the
+necessary dependencies ([Go modules
+ref](https://github.com/golang/go/wiki/Modules)).
+
+Documentation
+-------------
+- See [godoc](https://godoc.org/github.com/vseinstrumentiru/CDEK) for package and API
+  descriptions and examples.
+
+Example
+-------------
+You cat get test `clientAccount` and `clientSecurePassword` from [the official CDEK documentation](https://confluence.cdek.ru/pages/viewpage.action?pageId=20264477#DataExchangeProtocol(v1.5)-TestAccount)
+```
+clientConf := NewClientConf("https://integration.edu.cdek.ru/")
+clientConf.SetAuth(clientAccount, clientSecurePassword)
+
+client := cdek.NewClient(clientConf)
+```

ROADMAP.md

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+- [ ] расчёт тарифов и обращения к справочникам
+  - [X] расчёт стоимости доставки по тарифам с приоритетом
+  - [ ] расчёт стоимости по тарифам без приоритета
+  - [X] получение списка пунктов выдачи заказов (ПВЗ) с фильтрацией
+  - [X] получение списка регионов-субъектов РФ
+  - [X] получение списка городов
+- [ ] управление заказами
+  - [X] формирование новых заказов от ИМ
+  - [ ] оформление заказов на доставку
+  - [ ] получение квитанции в PDF
+  - [ ] получение почтовых этикеток в PDF
+  - [X] удаление заказов
+  - [X] изменение заказов
+  - [ ] получение информации по заказам (отчёт «Информация по заказам»)
+  - [ ] трекинг заказов (отчёт «Статусы заказов»)
+  - [ ] прозвон получателя
+  - [ ] вызов курьера
+  - [ ] создание преалерта
+ - [X] выбор базового URL интерфейса

calculator-models.go

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+package cdek
+
+//Good Location's dimension
+type Good struct {
+	Weight float64 `json:"weight"`
+	Length int     `json:"length"`
+	Width  int     `json:"width"`
+	Height int     `json:"height"`
+	Volume float64 `json:"volume"`
+}
+
+//ServiceReq List of additional service
+type ServiceReq struct {
+	ID    int `json:"id"`
+	Param int `json:"param,omitempty"`
+}
+
+//ServiceResp List of transmitted additional services
+type ServiceResp struct {
+	ID    int     `json:"id"`
+	Title string  `json:"title"`
+	Price float64 `json:"price"`
+	Rate  float64 `json:"rate,omitempty"`
+}
+
+//GetCostReq Cost calculation on tariffs with priority request
+type GetCostReq struct {
+	securableJSON
+	Version        *string       `json:"version"`
+	SenderCityID   *int          `json:"senderCityId"`
+	ReceiverCityID *int          `json:"receiverCityId"`
+	TariffID       *int          `json:"tariffId"`
+	Goods          []*Good       `json:"goods"`
+	Services       []*ServiceReq `json:"services,omitempty"`
+}
+
+type getCostResp struct {
+	ErrorResp []Error           `json:"error,omitempty"`
+	Result    GetCostRespResult `json:"result"`
+}
+
+//GetCostRespResult Cost calculation on tariffs with priority result response
+type GetCostRespResult struct {
+	Price             float64       `json:"price,string"`
+	DeliveryPeriodMin int           `json:"deliveryPeriodMin"`
+	DeliveryPeriodMax int           `json:"deliveryPeriodMax"`
+	DeliveryDateMin   string        `json:"deliveryDateMin"`
+	DeliveryDateMax   string        `json:"deliveryDateMax"`
+	TariffID          int           `json:"tariffId"`
+	CashOnDelivery    float64       `json:"cashOnDelivery"`
+	PriceByCurrency   float64       `json:"priceByCurrency"`
+	Currency          string        `json:"currency"`
+	PercentVAT        int           `json:"percentVAT"`
+	Services          []ServiceResp `json:"services"`
+}

calculator-req-builder.go

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+package cdek
+
+const apiVersion = "1.0"
+
+//NewGetCostReq create new instance of GetCostReq
+func NewGetCostReq(senderCityID int, receiverCityID int, tariffID int) *GetCostReq {
+	apiVersion := apiVersion
+
+	return &GetCostReq{
+		Version:        &apiVersion,
+		SenderCityID:   &senderCityID,
+		ReceiverCityID: &receiverCityID,
+		TariffID:       &tariffID,
+	}
+}
+
+//AddService add service to request
+func (getCostReq *GetCostReq) AddService(service ServiceReq) *GetCostReq {
+	if getCostReq.Services == nil {
+		getCostReq.Services = []*ServiceReq{}
+	}
+
+	getCostReq.Services = append(getCostReq.Services, &service)
+
+	return getCostReq
+}
+
+//AddGood add good to request
+func (getCostReq *GetCostReq) AddGood(good Good) *GetCostReq {
+	if getCostReq.Goods == nil {
+		getCostReq.Goods = []*Good{}
+	}
+
+	getCostReq.Goods = append(getCostReq.Goods, &good)
+
+	return getCostReq
+}