let user override heades

lib/prometheus/api_client.rb

@@ -14,11 +14,10 @@ module ApiClient
     # @option options [String] :url Server base URL.
     # @option options [Hash] :credentials Authentication credentials.
     # @option options [Hash] :options Options used to define connection.
-    # @option options [Hash] :params URI query unencoded key/value pairs.
     # @option options [Hash] :headers Unencoded HTTP header key/value pairs.
     # @option options [Hash] :request Request options.
     # @option options [Hash] :ssl SSL options.
-    # @option options [Hash] :proxy Proxy options.
+    # @option options [String] :proxy Proxy url.
     #
     # A default client is created if options is omitted.
     def self.client(options = {})

lib/prometheus/api_client/client.rb

@@ -24,14 +24,13 @@ class RequestError < StandardError; end
       # Create a Prometheus API client:
       #
       # @param [Hash] options
-      # @option options [String] :url server base URL.
+      # @option options [String] :url Server base URL.
       # @option options [Hash] :credentials Authentication credentials.
       # @option options [Hash] :options Options used to define connection.
-      # @option options [Hash] :params URI query unencoded key/value pairs.
       # @option options [Hash] :headers Unencoded HTTP header key/value pairs.
       # @option options [Hash] :request Request options.
       # @option options [Hash] :ssl SSL options.
-      # @option options [Hash] :proxy Proxy options.
+      # @option options [String] :proxy Proxy url.
       #
       # A default client is created if options is omitted.
       def initialize(options = {})
@@ -109,39 +108,58 @@ def run_command(command, options)
 
       # Helper function to evalueate the low level proxy option
       def faraday_proxy(options)
-        options[:http_proxy_uri] if options[:http_proxy_uri]
+        return options[:proxy] if options[:proxy]
+
+        proxy = options[:options]
+        proxy[:http_proxy_uri] if proxy[:http_proxy_uri]
       end
 
       # Helper function to evalueate the low level ssl option
-      def faraday_verify_ssl(options)
-        return unless options[:verify_ssl]
-
-        {
-          verify: options[:verify_ssl] != OpenSSL::SSL::VERIFY_NONE,
-          cert_store: options[:ssl_cert_store],
-        }
+      def faraday_ssl(options)
+        return options[:ssl] if options[:ssl]
+
+        ssl = options[:options]
+        if ssl[:verify_ssl] || ssl[:ssl_cert_store]
+          {
+            verify: ssl[:verify_ssl] != OpenSSL::SSL::VERIFY_NONE,
+            cert_store: ssl[:ssl_cert_store],
+          }
+        end
       end
 
       # Helper function to evalueate the low level headers option
-      def faraday_headers(credentials)
-        return unless credentials[:token]
+      def faraday_headers(options)
+        return options[:headers] if options[:headers]
+
+        headers = options[:credentials]
+        if headers[:token]
+          {
+            Authorization: 'Bearer ' + headers[:token].to_s,
+          }
+        end
+      end
 
-        {
-          Authorization: 'Bearer ' + credentials[:token].to_s,
-        }
+      # Helper function to evalueate the low level headers option
+      def faraday_request(options)
+        return options[:request] if options[:request]
+
+        request = options[:options]
+        if request[:open_timeout] || request[:timeout]
+          {
+            open_timeout: request[:open_timeout],
+            timeout: request[:timeout],
+          }
+        end
       end
 
       # Helper function to create the args for the low level client
       def faraday_options(options)
         {
           url: options[:url] + options[:path],
-          proxy: faraday_proxy(options[:options]),
-          ssl: faraday_verify_ssl(options[:options]),
-          headers: faraday_headers(options[:credentials]),
-          request: {
-            open_timeout: options[:options][:open_timeout],
-            timeout: options[:options][:timeout],
-          },
+          proxy: faraday_proxy(options),
+          ssl: faraday_ssl(options),
+          headers: faraday_headers(options),
+          request: faraday_request(options),
         }
       end
     end