Adds header information to 'twitch api'. Addresses 261

cmd/api.go

@@ -21,6 +21,7 @@ var body string
 var prettyPrint bool
 var autoPaginate int = 0
 var port int
+var verbose bool
 
 var generateCount int
 
@@ -89,6 +90,7 @@ func init() {
 
 	apiCmd.PersistentFlags().StringArrayVarP(&queryParameters, "query-params", "q", nil, "Available multiple times. Passes in query parameters to endpoints using the format of `key=value`.")
 	apiCmd.PersistentFlags().StringVarP(&body, "body", "b", "", "Passes a body to the request. Alteratively supports CURL-like references to files using the format of `@data,json`.")
+	apiCmd.PersistentFlags().BoolVarP(&verbose, "verbose", "v", false, "Whether to display HTTP request and header information above the response of the API call.")
 
 	// default here is false to enable -p commands to toggle off without explicitly defining -p=false as -p false will not work. The below commands invert the bool to pass the true default. Deprecated, so marking as hidden in favor of the unformatted flag.
 	apiCmd.PersistentFlags().BoolVarP(&prettyPrint, "pretty-print", "p", false, "Whether to pretty-print API requests. Default is true.")
@@ -127,9 +129,9 @@ func cmdRun(cmd *cobra.Command, args []string) error {
 	}
 
 	if cmd.Name() == "get" && cmd.PersistentFlags().Lookup("autopaginate").Changed {
-		return api.NewRequest(cmd.Name(), path, queryParameters, []byte(body), !prettyPrint, &autoPaginate)
+		return api.NewRequest(cmd.Name(), path, queryParameters, []byte(body), !prettyPrint, &autoPaginate, verbose)
 	} else {
-		return api.NewRequest(cmd.Name(), path, queryParameters, []byte(body), !prettyPrint, nil) // only set on when the user changed the flag
+		return api.NewRequest(cmd.Name(), path, queryParameters, []byte(body), !prettyPrint, nil, verbose) // only set on when the user changed the flag
 	}
 }
 

internal/api/api.go

@@ -30,11 +30,18 @@ type clientInformation struct {
 }
 
 // NewRequest is used to request data from the Twitch API using a HTTP GET request- this function is a wrapper for the apiRequest function that handles the network call
-func NewRequest(method string, path string, queryParameters []string, body []byte, prettyPrint bool, autopaginate *int) error {
+func NewRequest(method string, path string, queryParameters []string, body []byte, prettyPrint bool, autopaginate *int, verbose bool) error {
 	var data models.APIResponse
 	var err error
 	var cursor string
 
+	var requestMethod string
+	var requestPath string
+	var requestHeaders http.Header
+	var responseHeaders http.Header
+	var responseStatusCode int
+	var protocol string
+
 	isExtensionsLiveEndpoint := false // https://github.com/twitchdev/twitch-cli/issues/157
 
 	data.Data = make([]interface{}, 0)
@@ -130,6 +137,13 @@ func NewRequest(method string, path string, queryParameters []string, body []byt
 
 		if runCounter == 1 {
 			data = apiResponse
+
+			requestMethod = resp.HttpMethod
+			requestPath = resp.RequestPath
+			responseStatusCode = resp.StatusCode
+			requestHeaders = resp.RequestHeaders
+			responseHeaders = resp.ResponseHeaders
+			protocol = resp.HttpVersion
 		}
 
 		if resp.StatusCode > 299 || resp.StatusCode < 200 {
@@ -210,6 +224,10 @@ func NewRequest(method string, path string, queryParameters []string, body []byt
 		// since Command Prompt/Powershell don't support coloring, will pretty print without colors
 		if runtime.GOOS == "windows" {
 			s, _ := json.MarshalIndent(obj, "", "  ")
+
+			if verbose {
+				printVerboseHeaders(requestMethod, requestPath, requestHeaders, responseHeaders, responseStatusCode, protocol)
+			}
 			if data.Error == "" {
 				fmt.Println(string(s))
 			} else {
@@ -226,6 +244,10 @@ func NewRequest(method string, path string, queryParameters []string, body []byt
 		if err != nil {
 			return err
 		}
+
+		if verbose {
+			printVerboseHeaders(requestMethod, requestPath, requestHeaders, responseHeaders, responseStatusCode, protocol)
+		}
 		if data.Error == "" {
 			fmt.Println(string(s))
 		} else {
@@ -234,6 +256,9 @@ func NewRequest(method string, path string, queryParameters []string, body []byt
 		return nil
 	}
 
+	if verbose {
+		printVerboseHeaders(requestMethod, requestPath, requestHeaders, responseHeaders, responseStatusCode, protocol)
+	}
 	if data.Error == "" {
 		fmt.Println(string(d))
 	} else {
@@ -297,3 +322,31 @@ func GetClientInformation() (clientInformation, error) {
 
 	return clientInformation{Token: token, ClientID: clientID}, nil
 }
+
+func printVerboseHeaders(method string, path string, requestHeaders http.Header, responseHeaders http.Header, responseStatusCode int, protocol string) {
+	fmt.Printf("* Using %v\n", protocol)
+	fmt.Printf("> %v %v\n", method, path)
+	for key, value := range requestHeaders {
+		for _, v := range value {
+			if strings.EqualFold(key, "authorization") {
+				parts := strings.Split(v, " ")
+				if len(parts) > 1 {
+					fmt.Printf("> %v: %v *****\n", key, parts[0])
+				} else {
+					fmt.Printf("> %v: *****\n", key)
+				}
+			} else {
+				fmt.Printf("> %v: %v\n", key, v)
+			}
+		}
+	}
+
+	fmt.Printf("\n")
+	fmt.Printf("< %v %v %v\n", protocol, responseStatusCode, http.StatusText(responseStatusCode))
+	for key, value := range responseHeaders {
+		for _, v := range value {
+			fmt.Printf("< %v: %v\n", key, v)
+		}
+	}
+	fmt.Printf("\n")
+}

internal/api/api_request.go

@@ -6,6 +6,7 @@ import (
 	"bytes"
 	"fmt"
 	"io/ioutil"
+	"net/http"
 	"time"
 
 	"github.com/twitchdev/twitch-cli/internal/request"
@@ -19,6 +20,12 @@ type apiRequestParameters struct {
 type apiRequestResponse struct {
 	StatusCode int
 	Body       []byte
+
+	HttpMethod      string
+	RequestPath     string
+	RequestHeaders  http.Header
+	ResponseHeaders http.Header
+	HttpVersion     string
 }
 
 func apiRequest(method string, url string, payload []byte, p apiRequestParameters) (apiRequestResponse, error) {
@@ -54,5 +61,11 @@ func apiRequest(method string, url string, payload []byte, p apiRequestParameter
 	return apiRequestResponse{
 		StatusCode: resp.StatusCode,
 		Body:       body,
+
+		HttpMethod:      req.Method,
+		RequestPath:     req.URL.RequestURI(),
+		RequestHeaders:  req.Header,
+		ResponseHeaders: resp.Header,
+		HttpVersion:     req.Proto,
 	}, nil
 }

internal/api/api_test.go

@@ -56,17 +56,17 @@ func TestNewRequest(t *testing.T) {
 
 	defaultAutoPaginate := 0
 	// tests for normal get requests
-	NewRequest("GET", "", []string{"test=1", "test=2"}, nil, true, nil)
-	NewRequest("GET", "", []string{"test=1", "test=2"}, nil, false, &defaultAutoPaginate)
+	NewRequest("GET", "", []string{"test=1", "test=2"}, nil, true, nil, false)
+	NewRequest("GET", "", []string{"test=1", "test=2"}, nil, false, &defaultAutoPaginate, false)
 
 	// testing cursors autopagination
-	NewRequest("GET", "/cursor", []string{"test=1", "test=2"}, nil, false, &defaultAutoPaginate)
+	NewRequest("GET", "/cursor", []string{"test=1", "test=2"}, nil, false, &defaultAutoPaginate, false)
 
 	// testing 204 no-content apis
-	NewRequest("POST", "/nocontent", []string{"test=1", "test=2"}, nil, false, nil)
+	NewRequest("POST", "/nocontent", []string{"test=1", "test=2"}, nil, false, nil, false)
 
 	// testing 500 errors
-	NewRequest("GET", "/error", []string{"test=1", "test=2"}, nil, false, &defaultAutoPaginate)
+	NewRequest("GET", "/error", []string{"test=1", "test=2"}, nil, false, &defaultAutoPaginate, false)
 }
 
 func TestValidOptions(t *testing.T) {