Add vendor support (#49)

vendor.go

@@ -0,0 +1,73 @@
+package pagerduty
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/google/go-querystring/query"
+)
+
+// Vendor represents a specific type of integration. AWS Cloudwatch, Splunk, Datadog, etc are all examples of vendors that can be integrated in PagerDuty by making an integration.
+type Vendor struct {
+	APIObject
+	Name                string `json:"name,omitempty"`
+	LogoURL             string `json:"logo_url,omitempty"`
+	LongName            string `json:"long_name,omitempty"`
+	WebsiteURL          string `json:"website_url,omitempty"`
+	Description         string `json:"description,omitempty"`
+	Connectable         bool   `json:"connectable,omitempty"`
+	ThumbnailURL        string `json:"thumbnail_url,omitempty"`
+	GenericServiceType  string `json:"generic_service_type,omitempty"`
+	IntegrationGuideURL string `json:"integration_guide_url,omitempty"`
+}
+
+// ListVendorResponse is the data structure returned from calling the ListVendors API endpoint.
+type ListVendorResponse struct {
+	APIListObject
+	Vendors []Vendor
+}
+
+// ListVendorOptions is the data structure used when calling the ListVendors API endpoint.
+type ListVendorOptions struct {
+	APIListObject
+}
+
+// ListVendors lists existing vendors.
+func (c *Client) ListVendors(o ListVendorOptions) (*ListVendorResponse, error) {
+	v, err := query.Values(o)
+
+	if err != nil {
+		return nil, err
+	}
+
+	resp, err := c.get("/vendors?" + v.Encode())
+
+	if err != nil {
+		return nil, err
+	}
+
+	var result ListVendorResponse
+	return &result, c.decodeJSON(resp, &result)
+}
+
+// GetVendor gets details about an existing vendor.
+func (c *Client) GetVendor(id string) (*Vendor, error) {
+	resp, err := c.get("/vendors/" + id)
+	return getVendorFromResponse(c, resp, err)
+}
+
+func getVendorFromResponse(c *Client, resp *http.Response, err error) (*Vendor, error) {
+	if err != nil {
+		return nil, err
+	}
+	var target map[string]Vendor
+	if dErr := c.decodeJSON(resp, &target); dErr != nil {
+		return nil, fmt.Errorf("Could not decode JSON response: %v", dErr)
+	}
+	rootNode := "vendor"
+	t, nodeOK := target[rootNode]
+	if !nodeOK {
+		return nil, fmt.Errorf("JSON response does not have %s field", rootNode)
+	}
+	return &t, nil
+}