Implement ListOrganizations

Signed-off-by: Gábor Lipták <gliptak@gmail.com>

organizations.go

@@ -1,5 +1,11 @@
 package cloudflare
 
+import (
+	"encoding/json"
+
+	"github.com/pkg/errors"
+)
+
 // Organization represents a multi-user organization.
 type Organization struct {
 	ID          string   `json:"id,omitempty"`
@@ -9,9 +15,28 @@ type Organization struct {
 	Roles       []string `json:"roles,omitempty"`
 }
 
-// OrganizationResponse represents the response from the Organization endpoint.
-type OrganizationResponse struct {
+// organizationResponse represents the response from the Organization endpoint.
+type organizationResponse struct {
 	Response
 	Result     []Organization `json:"result"`
-	ResultInfo ResultInfo     `json:"result_info"`
+	ResultInfo `json:"result_info"`
+}
+
+// ListOrganizations lists organizations of the logged-in user.
+// API reference:
+// 	https://api.cloudflare.com/#user-s-organizations-list-organizations
+//	GET /user/organizations
+func (api *API) ListOrganizations() ([]Organization, ResultInfo, error) {
+	var r organizationResponse
+	res, err := api.makeRequest("GET", "/user/organizations", nil)
+	if err != nil {
+		return []Organization{}, ResultInfo{}, errors.Wrap(err, errMakeRequestError)
+	}
+
+	err = json.Unmarshal(res, &r)
+	if err != nil {
+		return []Organization{}, ResultInfo{}, errors.Wrap(err, errUnmarshalError)
+	}
+
+	return r.Result, r.ResultInfo, nil
 }

organizations_test.go

@@ -0,0 +1,66 @@
+package cloudflare
+
+import (
+	"fmt"
+	"net/http"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestOrganizations_ListOrganizations(t *testing.T) {
+	setup()
+	defer teardown()
+
+	mux.HandleFunc("/user/organizations", func(w http.ResponseWriter, r *http.Request) {
+		assert.Equal(t, "GET", r.Method, "Expected method 'GET', got %s", r.Method)
+
+		w.Header().Set("content-type", "application/json")
+		fmt.Fprintf(w, `{
+"success": true,
+"errors": [],
+"messages": [],
+"result": [
+    {
+      "id": "01a7362d577a6c3019a474fd6f485823",
+      "name": "Cloudflare, Inc.",
+      "status": "member",
+      "permissions": [
+        "#zones:read"
+      ],
+      "roles": [
+        "All Privileges - Super Administrator"
+      ]
+    }
+  ],
+"result_info": {
+  "page": 1,
+  "per_page": 20,
+  "count": 1,
+  "total_count": 2000
+  }
+}`)
+	})
+
+	user, paginator, err := client.ListOrganizations()
+
+	want := []Organization{{
+		ID:          "01a7362d577a6c3019a474fd6f485823",
+		Name:        "Cloudflare, Inc.",
+		Status:      "member",
+		Permissions: []string{"#zones:read"},
+		Roles:       []string{"All Privileges - Super Administrator"},
+	}}
+
+	if assert.NoError(t, err) {
+		assert.Equal(t, user, want)
+	}
+
+	want_pagination := ResultInfo{
+		Page:    1,
+		PerPage: 20,
+		Count:   1,
+		Total:   2000,
+	}
+	assert.Equal(t, paginator, want_pagination)
+}