From 8d16e38b83f7a9f6a19963cd4f9fa64f0f639603 Mon Sep 17 00:00:00 2001 From: arnaucube Date: Sun, 1 Dec 2019 13:13:41 +0100 Subject: [PATCH] initial commit --- .gitignore | 2 + README.md | 21 ++++++++ config.go | 27 ++++++++++ go.mod | 8 +++ go.sum | 142 +++++++++++++++++++++++++++++++++++++++++++++++++++++ main.go | 102 ++++++++++++++++++++++++++++++++++++++ 6 files changed, 302 insertions(+) create mode 100644 .gitignore create mode 100644 README.md create mode 100644 config.go create mode 100644 go.mod create mode 100644 go.sum create mode 100644 main.go diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..fd86d59 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +config.yaml +balance-checker diff --git a/README.md b/README.md new file mode 100644 index 0000000..00c7d6a --- /dev/null +++ b/README.md @@ -0,0 +1,21 @@ +# balance-checker +Just a very very simple small tool to get balances in different currencies. + +- `config.yaml` +```yaml +currencies: + BTC: 1 + XMR: 1 + ETH: 1 + ZEC: 1 +``` + +- build +``` +go build +``` + +- run +``` +./balance-checker +``` diff --git a/config.go b/config.go new file mode 100644 index 0000000..ee1c75a --- /dev/null +++ b/config.go @@ -0,0 +1,27 @@ +package main + +import ( + "github.com/spf13/viper" +) + +type Config struct { + Currencies map[string]float64 +} + +var C Config + +func MustRead(configPath string) error { + viper.SetConfigType("yaml") + viper.SetConfigName("config") + viper.AddConfigPath(".") + viper.SetConfigFile(configPath) + + if err := viper.ReadInConfig(); err != nil { + return err + } + err := viper.Unmarshal(&C) + if err != nil { + return err + } + return nil +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..979b366 --- /dev/null +++ b/go.mod @@ -0,0 +1,8 @@ +module balance-checker + +go 1.12 + +require ( + github.com/spf13/viper v1.5.0 + github.com/urfave/cli v1.22.2 +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..1a5ac82 --- /dev/null +++ b/go.sum @@ 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+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= diff --git a/main.go b/main.go new file mode 100644 index 0000000..7e5d23a --- /dev/null +++ b/main.go @@ -0,0 +1,102 @@ +package main + +import ( + "encoding/json" + "flag" + "fmt" + "io/ioutil" + "net/http" + "os" + "strconv" + "strings" +) + +type Currency struct { + Id int `json:"id"` + Name string `json:"name"` + Symbol string `json:"symbol"` + Quote struct { + USD struct { + Price float64 `json:"price"` + } + } +} +type Content struct { + Data []Currency +} + +type Result struct { + Symbol string + Balance float64 + USD float64 +} + +func main() { + var configPath string + flag.StringVar(&configPath, "config", "config.yaml", "Path to config.toml") + flag.Parse() + + if err := MustRead(configPath); err != nil { + fmt.Println(err) + os.Exit(1) + } + + currencies := getCurrencies() + + results, total := calculateResults(currencies, C.Currencies) + printResults(results, total) +} + +func printResults(results []Result, total float64) { + fmt.Println("Curr Balance USD") + for _, r := range results { + fmt.Println(r.Symbol + " " + + strconv.FormatFloat(r.Balance, 'f', 6, 64) + " " + + strconv.FormatFloat(r.USD, 'f', 6, 64)) + } + + fmt.Println("\ntotal USD:", total) +} + +func calculateResults(currencies []Currency, configCurrencies map[string]float64) ([]Result, float64) { + var results []Result + var total float64 + total = 0 + for _, c := range currencies { + if configCurrencies[strings.ToLower(c.Symbol)] != 0 { + balance := configCurrencies[strings.ToLower(c.Symbol)] + price := c.Quote.USD.Price + result := Result{ + Symbol: c.Symbol, + Balance: balance, + USD: balance * price, + } + results = append(results, result) + total = total + result.USD + } + } + return results, total +} + +func getCurrencies() []Currency { + url := "https://web-api.coinmarketcap.com/v1/cryptocurrency/listings/latest?limit=35&start=1" + response, err := http.Get(url) + if err != nil { + fmt.Println(err) + os.Exit(1) + } + defer response.Body.Close() + contents, err := ioutil.ReadAll(response.Body) + if err != nil { + fmt.Println(err) + os.Exit(1) + } + + var content Content + err = json.Unmarshal(contents, &content) + if err != nil { + fmt.Println(err) + os.Exit(1) + } + return content.Data +}