go-calendarific

Official Go library for Calendarific Global Holiday API

Installation

dep ensure -add github.com/calendarific/go-calendarific

Usage / Example

• Create a file called main.go & insert a script like below

  package main
  
  import (
  	"fmt"
  	"github.com/calendarific/go-calendarific"
  	"os"
  )
  
  func main() {
  
      // Loading the paramater struct
  	cp := calendarific.CalParameters{
  		ApiKey:  "<MY SECRET API KEY>",
  		Country: "US",
  		Year:    2019,
  	}
  	
  	// It returns a response struct
  	holidays, err := cp.CalData()
  	if err != nil {
  		fmt.Println(err)
  		os.Exit(1)
  	}
  	
  	fmt.Println(holidays)
  }
  

  Check out the file for parameter struct and response struct.

• Run the program for data

  go run main.go
  

Bonus

In case your project needs the states data, you might use the below example on how to Interpretate a state interface type.

```
package main

import (
    "fmt"
    "github.com/calendarific/go-calendarific"
    "github.com/ryanuber/columnize"
    "os"
)

func main() {

    // Initialize a column format display
    var output []string

    // Parameters
    cp := calendarific.CalParameters{
        ApiKey:  "MY SECRET",
        Country: "US",
        Year:    2019,
    }

    // Response
    holidays, err := cp.CalData()
    if err != nil {
        fmt.Printf("Encountered error: %v", err)
        os.Exit(1)
    }

    // Reading the response and formatting the state struct
    // State struct is arbitrary datatype, some of the data is of
    // string format and some are of array, so we use the below procedure 
    // to check what kind datatype is it and take necessary action.
    for _, pv := range holidays.Response.Holidays {
        s := pv.States
        switch val := s.(type) {
        case string:
            // Its a string
            output = append(output, fmt.Sprintf("%s|%s|%s", pv.Name, pv.Date.Iso, pv.States))
        case int:
            // Its an integer
            output = append(output, fmt.Sprintf("%s|%s|%d", pv.Name, pv.Date.Iso, pv.States))
        case []interface{}:
            // Its an array
            for _, v := range val {
                j := v.(map[string]interface{})
                output = append(output, fmt.Sprintf("%s%s|%s|%s", " ├── ", pv.Name, pv.Date.Iso, j["name"]))
            }
        default:
            output = append(output, fmt.Sprintf("%s|%s|%s", pv.Name, pv.Date.Iso, "Unknown Type"))
        }
    }

    // Format configuration to print
    // the data in a column forat
    config := columnize.DefaultConfig()
    config.NoTrim = true

    // Print the output on column format
    result := columnize.Format(output, config)
    fmt.Println(result)
}
```