fix new app creation flow with account keys

* new app creation was not functional with account keys
* print better error messages if account keys are not configured

Author: pavanka

apps.go

@@ -207,13 +207,10 @@ func (a *apps) restCreateApp(e *env, appName string) (*app, error) {
 	req := &http.Request{
 		Method: "POST",
 		URL:    &url.URL{Path: "apps"},
-		Header: make(http.Header),
+		Header: getAuthHeaders(&a.login.credentials, nil),
 		Body:   ioutil.NopCloser(jsonpipe.Encode(map[string]string{"appName": appName})),
 	}
 
-	req.Header.Add("X-Parse-Email", a.login.credentials.email)
-	req.Header.Add("X-Parse-Password", a.login.credentials.password)
-
 	var res app
 	if response, err := e.Client.Do(req, nil, &res); err != nil {
 		if response != nil && response.StatusCode == http.StatusUnauthorized {

configure_cmd.go

@@ -14,6 +14,7 @@ type configureCmd struct {
 func (c *configureCmd) accessToken(e *env) error {
 	fmt.Fprintf(e.Out,
 		`Please enter an access token if you already generated it.
+
 If you do not have an access token or would like to generate a new one,
 please type: "y" to open the browser or "n" to continue: `,
 	)

configure_cmd_test.go

@@ -21,10 +21,12 @@ func TestConfigureAcessToken(t *testing.T) {
 	ensure.DeepEqual(t,
 		h.Out.String(),
 		`Please enter an access token if you already generated it.
+
 If you do not have an access token or would like to generate a new one,
-please type: "y" to open the browser or "n" to continue: Access Token: Successfully stored credentials.
-`,
-	)
+please type: "y" to open the browser or "n" to continue: Please open "https://www.parse.com/account_keys" in the browser
+and follow instructions to create an access token.
+Access Token: Successfully stored credentials.
+`)
 	h.env.In = ioutil.NopCloser(strings.NewReader("n\nemail\ninvalid\n"))
 	ensure.Err(t, c.accessToken(h.env), regexp.MustCompile("Please try again"))
 	ensure.DeepEqual(t,

login.go

@@ -168,10 +168,10 @@ func (l *login) authUserWithToken(e *env) error {
 	_, err = apps.restFetchApps(e)
 	if err == errAuth {
 		fmt.Fprintln(e.Err,
-			`Sorry, you have an invalid token associated with the email: %q.
+			`Sorry, the token you configured is not valid.
 To avoid typing the email and password everytime,
-please type "parse configure token" and provide a valid access token.`,
-		)
+please type "parse configure token" and provide a valid access token.
+`)
 	}
 	if err != nil {
 		return stackerr.Wrap(err)
@@ -216,6 +216,12 @@ func (l *login) helpCreateToken(e *env) {
 	var shouldOpen string
 	fmt.Fscanf(e.In, "%s\n", &shouldOpen)
 	if shouldOpen == "n" {
+		fmt.Fprintf(e.Out,
+			`Please open %q in the browser
+and follow instructions to create an access token.
+`,
+			keysURL,
+		)
 		return
 	}
 	err := open.Run(keysURL)