add Reset api method

Author: walkerus

README.md

@@ -13,7 +13,7 @@ docker run -it --rm -p 8080:8080 rodolpheche/wiremock
 ```
 ```go
 wiremockClient := NewClient("http://0.0.0.0:8080")
-defer wiremockClient.Clear()
+defer wiremockClient.Reset()
 wiremockClient.StubFor(Post(URLPathEqualTo("/example")).
 		WithQueryParam("firstName", EqualTo("Jhon")).
 		WithQueryParam("lastName", NotMatching("Black")).
@@ -24,4 +24,6 @@ wiremockClient.StubFor(Post(URLPathEqualTo("/example")).
 			map[string]string{"Content-Type": "application/json"},
 			400,
 		))
+
+// testing code...
 ```

client.go

@@ -20,7 +20,7 @@ func NewClient(url string) *Client {
 	return &Client{url: url}
 }
 
-// StubFor sends http request with StubRule to wiremock server.
+// StubFor creates a new stub mapping.
 func (c *Client) StubFor(stubRule *StubRule) error {
 	requestBody, err := json.Marshal(stubRule)
 	if err != nil {
@@ -44,7 +44,7 @@ func (c *Client) StubFor(stubRule *StubRule) error {
 	return nil
 }
 
-// Clear sends http request to wiremock server for delete all mappings.
+// Clear deletes all stub mappings.
 func (c *Client) Clear() error {
 	req, err := http.NewRequest(http.MethodDelete, fmt.Sprintf("%s/%s", c.url, wiremockAdminURN), nil)
 	if err != nil {
@@ -62,3 +62,22 @@ func (c *Client) Clear() error {
 
 	return nil
 }
+
+// Reset restores stub mappings to the defaults defined back in the backing store.
+func (c *Client) Reset() error {
+	res, err := http.Post(fmt.Sprintf("%s/%s/reset", c.url, wiremockAdminURN), "application/json", nil)
+	if err != nil {
+		return fmt.Errorf("reset request error: %s", err.Error())
+	}
+
+	if res.StatusCode != http.StatusOK {
+		bodyBytes, err := ioutil.ReadAll(res.Body)
+		if err != nil {
+			return fmt.Errorf("read response error: %s", err.Error())
+		}
+
+		return fmt.Errorf("bad response status: %d, response: %s", res.StatusCode, string(bodyBytes))
+	}
+
+	return nil
+}

stub_rule.go

@@ -5,13 +5,13 @@ import (
 	"net/http"
 )
 
-// ParamMatcherInterface is pair ParamMatchingStrategy key and string value
+// ParamMatcherInterface is pair ParamMatchingStrategy and string matched value
 type ParamMatcherInterface interface {
 	Strategy() ParamMatchingStrategy
 	Value() string
 }
 
-// URLMatcherInterface is pair URLMatchingStrategy key and string value
+// URLMatcherInterface is pair URLMatchingStrategy and string matched value
 type URLMatcherInterface interface {
 	Strategy() URLMatchingStrategy
 	Value() string