Small modifications in response to pull request conversations

Author: mvanbrab

lib/converters/html-converter.js

@@ -109,10 +109,11 @@ module.exports = class HtmlConverter extends Converter {
 
   /**
    * This is a wrapper around convert(), that will render some default HTML if the expected conversion fails.
-   * Useful in error conditions.
    *
-   * @param htmlInfo - see convert()
-   * @param data - see convert()
+   * Call this function in stead of convert(), to complete requests in error conditions.
+   *
+   * @param htmlInfo - The information about HTML (path, engine)
+   * @param data - The JSON data that is used by the engine to substitute variables.
    *
    * @param message - {string} text to display inside a paragraph of the default HTML, if data cannot be converted as expected
    * @param logger - optional logger instance, logs conversion error that causes default HTML rendering

lib/handlers/request-handler.js

@@ -61,14 +61,8 @@ module.exports = class RequestHandler extends Handler {
               }
 
               const handleResponse = this.responseHandler.handle(res, status, 'text/html');
-
-              if (!htmlInfo[String(status)]) {
-                this.logger.warn(`No HTML template is defined for status code ${status}. Sending an empty string instead.`);
-                handleResponse('');
-              } else {
-                const html = await HTMLConverter.convertWithDefault(htmlInfo[String(status)], {}, `Status: ${status}`, this.logger);
-                handleResponse(html);
-              }
+              const html = await HTMLConverter.convertWithDefault(htmlInfo[String(status)], {}, `Status: ${status}`, this.logger);
+              handleResponse(html);
             })
         } else {
           // No GraphQL query is defined, so we just use the template without data.

lib/validators/main-validator.js

@@ -84,7 +84,7 @@ module.exports = class MainValidator {
     });
 
     if (hasErrors) {
-      let err = new Error(output.join('\n'));
+      const err = new Error(output.join('\n'));
       err.type = 'VALIDATION_ERROR';
       throw err;
     }