Addeds support for API PRO and dependencies update

.github/dependabot.yml

@@ -0,0 +1,8 @@
+version: 2
+updates:
+- package-ecosystem: gomod
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "04:00"
+  open-pull-requests-limit: 10

.github/workflows/main.yml

@@ -0,0 +1,40 @@
+name: Check & test & build
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  check:
+    name: Quality & security checks
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.19
+          check-latest: true
+
+      - name: Check out code
+        uses: actions/checkout@v3
+
+      - name: Lint Go Code
+        run: make check
+
+  test:
+    name: Test & coverage
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.19
+          check-latest: true
+
+      - name: Check out code
+        uses: actions/checkout@v3
+
+      - name: Run unit tests with
+        run: make test

.gitignore

@@ -13,4 +13,5 @@
 *.out
 
 ### IDE ###
-.idea/
+.idea/
+/bin/

.golangci.yml

@@ -0,0 +1,36 @@
+run:
+  concurrency: 4
+  timeout: 3m
+
+linters:
+  disable-all: true
+  enable:
+    - asciicheck
+    - bodyclose
+    - durationcheck
+    - errcheck
+    - errorlint
+    - forbidigo
+    - goimports
+    - gosec
+    - gosimple
+    - govet
+    - nilerr
+    - predeclared
+    - revive
+    - staticcheck
+    - stylecheck
+    - typecheck
+    - unconvert
+    - whitespace
+
+linters-settings:
+  forbidigo:
+    forbid:
+      - ^(fmt\.Print.*|print|println)$
+      - ^spew\.Dump$
+      - ^pp\.(P|PP|Sp|Fp)rint?$
+
+issues:
+  exclude:
+    - (.*)should have comment(.+)or be unexported|comment(.+)should be of the form

Makefile

@@ -0,0 +1,25 @@
+SHELL := /bin/bash
+export GO111MODULE=on
+export GOPROXY=https://proxy.golang.org
+
+.PHONY: check format help test tidy
+
+format: ## Format go code with goimports
+	@go install golang.org/x/tools/cmd/goimports@latest
+	@goimports -l -w .
+
+test: ## Run tests
+	@go test -race ./...
+
+tidy: ## Run go mod tidy
+	@go mod tidy
+
+check: ## Linting and static analysis
+	@if test ! -e ./bin/golangci-lint; then \
+		curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh| sh; \
+	fi
+
+	@./bin/golangci-lint run -c .golangci.yml
+
+help: ## Show help
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'

README.md

@@ -50,13 +50,19 @@ customClient := &http.Client{Timeout: 10 * time.Second}
 paprikaClient := coinpaprika.NewClient(customClient)
 ```
 
+## Setting API key for and enabling access to Coinpaprika Pro API
+Key can be obtained from [Coinpaprika API](https://coinpaprika.com/api/)
+
+```go
+paprikaClient := coinpaprika.NewClient(nil, coinpaprika.WithAPIKey("your_api_key_goes_here"))
+```
 
 ## Examples
 
 Check out the [`./examples`](./examples) directory.
 
 
-## Implementation status (API v1.4.3)
+## Implementation status
 
 ### Global
 - [x] Get market overview data

coinpaprika/client.go

@@ -2,7 +2,7 @@ package coinpaprika
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/url"
 	"reflect"
@@ -11,29 +11,50 @@ import (
 )
 
 const (
-	userAgent = "Coinpaprika API Client - Go"
-	baseURL   = "https://api.coinpaprika.com/v1"
+	userAgent   = "Coinpaprika API Client - Go"
+	baseFreeURL = "https://api.coinpaprika.com/v1"
+	baseProURL  = "https://api-pro.coinpaprika.com/v1"
 )
 
+var baseURL = baseFreeURL
+
 // Client can be used to get data from coinpaprika API.
-type Client struct {
-	httpClient     *http.Client
-	Tickers        TickersService
-	Search         SearchService
-	PriceConverter PriceConverterService
-	Coins          CoinsService
-	Global         GlobalService
-	Tags           TagsService
-	People         PeopleService
-	Exchanges      ExchangesService
-}
+type (
+	Client struct {
+		httpClient     *http.Client
+		Tickers        TickersService
+		Search         SearchService
+		PriceConverter PriceConverterService
+		Coins          CoinsService
+		Global         GlobalService
+		Tags           TagsService
+		People         PeopleService
+		Exchanges      ExchangesService
+	}
+)
+
+type (
+	service struct {
+		httpClient *http.Client
+	}
+)
+
+type (
+	authTransport struct {
+		baseTransport http.RoundTripper
+		apiKey        string
+	}
+)
 
-type service struct {
-	httpClient *http.Client
+func (t *authTransport) RoundTrip(req *http.Request) (*http.Response, error) {
+	req.Header.Add("Authorization", t.apiKey)
+	return t.baseTransport.RoundTrip(req)
 }
 
+type ClientOptions func(a *Client)
+
 // NewClient creates a new client to work with coinpaprika API.
-func NewClient(httpClient *http.Client) *Client {
+func NewClient(httpClient *http.Client, opts ...ClientOptions) *Client {
 	if httpClient == nil {
 		httpClient = http.DefaultClient
 	}
@@ -42,6 +63,10 @@ func NewClient(httpClient *http.Client) *Client {
 		httpClient: httpClient,
 	}
 
+	for _, opt := range opts {
+		opt(c)
+	}
+
 	c.Tickers.httpClient = c.httpClient
 	c.Search.httpClient = c.httpClient
 	c.PriceConverter.httpClient = c.httpClient
@@ -54,6 +79,24 @@ func NewClient(httpClient *http.Client) *Client {
 	return c
 }
 
+// WithAPIKey sets API key enabling access to Coinpaprika Pro API.
+// https://api-pro.coinpaprika.com is used.
+func WithAPIKey(apiKey string) ClientOptions {
+	return func(a *Client) {
+		baseURL = baseProURL
+
+		baseTransport := http.DefaultTransport
+		if a.httpClient.Transport != nil {
+			baseTransport = a.httpClient.Transport
+		}
+
+		a.httpClient.Transport = &authTransport{
+			apiKey:        apiKey,
+			baseTransport: baseTransport,
+		}
+	}
+}
+
 func constructURL(rawURL string, options interface{}) (string, error) {
 	if v := reflect.ValueOf(options); v.Kind() == reflect.Ptr && v.IsNil() {
 		return rawURL, nil
@@ -87,7 +130,7 @@ func sendGET(client *http.Client, url string) ([]byte, error) {
 
 	defer response.Body.Close()
 
-	body, err := ioutil.ReadAll(response.Body)
+	body, err := io.ReadAll(response.Body)
 	if err != nil {
 		return nil, err
 	}

coinpaprika/global.go

@@ -35,5 +35,4 @@ func (s *GlobalService) Get() (g *GlobalStats, err error) {
 
 	err = json.Unmarshal(body, &g)
 	return g, err
-
 }

examples/pro_api/pro_api.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/coinpaprika/coinpaprika-api-go-client/v2/coinpaprika"
+)
+
+func main() {
+	paprikaClient := coinpaprika.NewClient(nil, coinpaprika.WithAPIKey("your_api_key_goes_here"))
+
+	tickers, err := paprikaClient.Tickers.List(nil)
+	if err != nil {
+		panic(err)
+	}
+
+	for _, t := range tickers {
+		if t.Name == nil || t.Symbol == nil || t.Rank == nil {
+			continue
+		}
+
+		fmt.Println("Name:", *t.Name)
+		fmt.Println("Symbol:", *t.Symbol)
+		fmt.Println("Rank:", *t.Rank)
+		fmt.Println("----")
+	}
+}

go.mod

@@ -2,8 +2,8 @@ module github.com/coinpaprika/coinpaprika-api-go-client/v2
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/google/go-querystring v1.0.0
-	github.com/stretchr/testify v1.3.0
+	github.com/google/go-querystring v1.1.0
+	github.com/stretchr/testify v1.8.1
 )
 
 go 1.13

go.sum

@@ -1,11 +1,23 @@
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/google/go-querystring v1.0.0 h1:Xkwi/a1rcvNg1PPYe5vI8GbeBY/jrVuDX5ASuANWTrk=
-github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
+github.com/google/go-cmp v0.5.2 h1:X2ev0eStA3AbceY54o37/0PQ/UWqKEiiO2dKL5OPaFM=
+github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-querystring v1.1.0 h1:AnCroh3fv4ZBgVIf1Iwtovgjaw/GiKJo8M8yD/fhyJ8=
+github.com/google/go-querystring v1.1.0/go.mod h1:Kcdr2DB4koayq7X8pmAG4sNG59So17icRSOU623lUBU=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
-github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
+github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
+github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
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