replaced marshalling with decode && introduced interface for cleaner code

pkg/country.go

 package pkg
 
 import (
-	"encoding/json"
 	"log"
 )
 
@@ -34,21 +33,15 @@ func GetCountryByCode(code, limit string) (Country, int) {
 	urlSpecies := occurrenceApi + "country=" + code + "&limit=" + limit
 
 	// gets country info
-	cBody, status := getString(urlCountry)
-	if status != 200 {
-		return country, status
-	}
-	err := json.Unmarshal([]byte(cBody), &country)
+	resp, err := getBody(urlCountry)
 	if err != nil {
 		log.Fatal(err)
 	}
+	Unfold(&country, resp)
 
 	// gets species in that country
-	rBody, status := getString(urlSpecies)
-	if status != 200 {
-		return country, status
-	}
-	err = json.Unmarshal([]byte(rBody), &species)
+	resp, err = getBody(urlSpecies)
+	Unfold(&species, resp)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -57,14 +50,14 @@ func GetCountryByCode(code, limit string) (Country, int) {
 	check := make(map[Results]bool)
 	for i, _ := range species.Results {
 		if check[species.Results[i]] {
-			continue
+			continue						//[continues the loop] replace check with ! and add content from below
 		}
 		check[species.Results[i]] = true
 		country.SpeciesKey = append(country.SpeciesKey, species.Results[i].SpeciesKey)
 		country.Species = append(country.Species, species.Results[i].Species)
 	}
 
-	return country, status
+	return country, 200
 
 }
 

pkg/funcs.go

 package pkg
 
 import (
-	"io/ioutil"
+	"encoding/json"
 	"log"
 	"net/http"
 )
 
-func getString(url string) (string, int) {
-	resp, err:= http.Get(url)
+func Unfold (m Mashup, response *http.Response) {
+	m.unmarshal(response)
+}
+
+type Mashup interface {
+	unmarshal(response *http.Response)
+}
+
+func (c *Country) unmarshal(resp *http.Response) {
+	err := json.NewDecoder(resp.Body).Decode(&c)
 	if err != nil {
 		log.Fatal(err)
 	}
 	defer resp.Body.Close()
+}
 
+func (r *Response) unmarshal(resp *http.Response) {
+	err := json.NewDecoder(resp.Body).Decode(&r)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer resp.Body.Close()
+}
+
+func (s *Specie) unmarshal(resp *http.Response) () {
+	err := json.NewDecoder(resp.Body).Decode(&s)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer resp.Body.Close()
+}
+
+
+// parses httpresponse as a string used later for parsing
+func getBody(url string) (*http.Response, error) {
+	resp, err:= http.Get(url)
+	if err != nil {
+		return nil, err
+	}
+
+	return resp, nil
+/*
 	var bodyString string
 	if resp.StatusCode == http.StatusOK {
 		bodyBytes, err := ioutil.ReadAll(resp.Body)
@@ -23,11 +58,13 @@ func getString(url string) (string, int) {
 	}
 
 	return bodyString, resp.StatusCode
+
+ */
 }
 
 /*
 	funcs for testing purposes
-*/
+
 func GetString(url string) (string, int) {
 	return getString(url)
-}
\ No newline at end of file
+}*/
\ No newline at end of file

pkg/species.go

 package pkg
 
-import (
-	"encoding/json"
-	"log"
-)
+import "log"
 
 const speciesApi = "http://api.gbif.org/v1/species/"
 
@@ -23,24 +20,32 @@ type Specie struct {
 func GetSpecies(key string) (Specie, int) {
 	var specie Specie
 	url := speciesApi + key
-	sBody, code := getString(url)
-	if code != 200 {
-		return specie, code
+	resp, err := getBody(url)
+	if err != nil {
+		log.Fatal(err)
 	}
+	Unfold(&specie, resp)
+	/*
 	err := json.Unmarshal([]byte(sBody), &specie)
 	if err != nil {
 		log.Fatal(err)
 	}
+	*/
+
 
 	url = url + "/name"
-	sBody, code = getString(url)
-	if code != 200 {
-		return specie, code
+	resp, err = getBody(url)
+	if err != nil {
+		log.Fatal(err)
 	}
+	Unfold(&specie, resp)
+
+	/*
 	err = json.Unmarshal([]byte(sBody), &specie)
 	if err != nil {
 		log.Fatal(err)
 	}
+	*/
 
-	return specie, code
+	return specie, 200
 }
\ No newline at end of file