Add contact function

README.md

@@ -43,6 +43,20 @@ if err != nil {
 }
 ```
 
+### Get a contact by id
+
+Damit man einen speziellen Kontakt auslesen kann, wird die ID benötigt. Diese erhalten Sie mit der Funktion goplacetel.Contacts().
+
+```go
+// Get a contact by id
+contact, err := Contact("id", "token")
+if err != nil {
+    fmt.Println(err)
+} else {
+    fmt.Println(contact)
+}
+```
+
 ### Add a contact
 
 If a new contact is to be created, then this can be done as follows. The field: id (it is the first field) can be ignored.

contacts.go

@@ -151,6 +151,34 @@ func Contacts(token string) (*[]ContactReturn, error) {
 
 }
 
+// Contact is to get a contact by id
+func Contact(id string, token string) (*ContactReturn, error) {
+
+	// Set config for new request
+	r := Request{"/contacts/" + id, "GET", token, nil}
+
+	// Send new request
+	response, err := r.Send()
+	if err != nil {
+		return nil, err
+	}
+
+	// Close response body after function ends
+	defer response.Body.Close()
+
+	// Decode data
+	var decode ContactReturn
+
+	err = json.NewDecoder(response.Body).Decode(&decode)
+	if err != nil {
+		return nil, err
+	}
+
+	// Return data
+	return &decode, nil
+
+}
+
 // AddContact is to add a new contact
 func AddContact(body *ContactBody, token string) (*ContactReturn, error) {