Support additional headers for the ghost http client

frontend/config/config.go

@@ -10,8 +10,9 @@ import (
 
 // Backend contains backend connection-specific configuration
 type Backend struct {
-	Addr    string `mapstructure:"addr"`
-	Secured bool   `mapstructure:"secured"`
+	Addr    string            `mapstructure:"addr"`
+	Secured bool              `mapstructure:"secured"`
+	Headers map[string]string `mapstructure:"headers"`
 }
 
 // Content contains content-specific configuration
@@ -42,9 +43,9 @@ func init() {
 	pflag.String("unix", "", "unix socket path to listen")
 	pflag.String("base", "", "http URI prefix")
 
+	pflag.StringToString("content.backend.headers", nil, "map of additional headers to send")
 	pflag.String("content.backend.addr", "demo.ghost.io:443", "ghost backend addr")
 	pflag.Bool("content.backend.secured", true, "is ghost backend secured")
-	pflag.String("content.backend", "demo.ghost.io:443", "ghost backend addr")
 	pflag.String("content.key", "22444f78447824223cefc48062", "ghost content api key")
 	pflag.String("content.pinned", "contact", "pinned page slug")
 	pflag.Int("content.postsPerPage", 5, "amount of posts per page")

frontend/ghost/client.go

@@ -25,6 +25,7 @@ type HTTPClient struct {
 	ContentKey   string
 	Addr         string
 	Secured      bool
+	Headers      map[string]string
 
 	client *fasthttp.HostClient
 
@@ -63,6 +64,9 @@ func (g *HTTPClient) doQuery(method string, v easyjson.Unmarshaler, params ...Qu
 		uri.SetScheme("https")
 	}
 
+	for hKey, hValue := range g.Headers {
+		req.Header.Add(hKey, hValue)
+	}
 	for _, param := range params {
 		param.Apply(&req.Header, uri.QueryArgs())
 	}
@@ -78,7 +82,6 @@ func (g *HTTPClient) doQuery(method string, v easyjson.Unmarshaler, params ...Qu
 	resBytes := res.Body()
 	if resBytes == nil && v == nil {
 		return fmt.Errorf("nothing to unmarshal")
-
 	}
 	if resBytes == nil {
 		return

frontend/main.go

@@ -56,6 +56,7 @@ func main() {
 	ghostClient := &ghost.HTTPClient{
 		Addr:         config.Content.Backend.Addr,
 		Secured:      config.Content.Backend.Secured,
+		Headers:      config.Content.Backend.Headers,
 		ContentKey:   config.Content.Key,
 		QueryTimeout: time.Second,
 	}