add additional comment param

src/hosting-api.js

@@ -7,12 +7,12 @@ import { getApiRequestHeaders } from "./helpers";
  * @param {string|array} domain - The domain to check, or an array of domains to be checked.
  */
 
-function check(domain) {
+function check(domain, comment) {
   // is it a single domain or an array of them?
   if (typeof domain === "string") {
-    return checkAgainstAPI(domain);
+    return checkAgainstAPI(domain, comment);
   } else {
-    return checkDomainsAgainstAPI(domain);
+    return checkDomainsAgainstAPI(domain, comment);
   }
 }
 

src/hosting-api.test.js

@@ -16,7 +16,7 @@ describe("hostingAPI", () => {
           url: "google.com",
           green: true,
         });
-      const res = await hosting.check("google.com", requestHeaderComment);
+      const res = await hosting.check("google.com", null, requestHeaderComment);
       expect(res).toEqual(true);
     });
     it("sets the correct user agent header", async () => {
@@ -30,7 +30,7 @@ describe("hostingAPI", () => {
             green: true,
           };
         });
-      const res = await hosting.check("google.com", requestHeaderComment);
+      const res = await hosting.check("google.com", null, requestHeaderComment);
       expect(userAgent).toEqual("co2js/1.2.34 Test Runner");
     });
   });

src/hosting-node.js

@@ -52,19 +52,20 @@ async function getBody(url, comment) {
  * Check if a domain is hosted by a green web host.
  * @param {string|array} domain - The domain to check, or an array of domains to be checked.
  * @param {object} db - Optional. A database object to use for lookups.
+ * @param {string} comment - Optional. The app, site, or organisation that is making the request.
  * @returns {boolean|array} - A boolean if a string was provided, or an array of booleans if an array of domains was provided.
  */
 
-function check(domain, db) {
+function check(domain, db, comment) {
   if (db) {
     return hostingJSON.check(domain, db);
   }
 
   // is it a single domain or an array of them?
   if (typeof domain === "string") {
-    return checkAgainstAPI(domain);
+    return checkAgainstAPI(domain, comment);
   } else {
-    return checkDomainsAgainstAPI(domain);
+    return checkDomainsAgainstAPI(domain, comment);
   }
 }
 

src/hosting.js

@@ -7,8 +7,8 @@ import hostingAPI from "./hosting-api.js";
  * @param {string|array} domain - The domain to check, or an array of domains to be checked.
  * @returns {boolean|array} - A boolean if a string was provided, or an array of booleans if an array of domains was provided.
  */
-function check(domain) {
-  return hostingAPI.check(domain);
+function check(domain, comment) {
+  return hostingAPI.check(domain, comment);
 }
 
 export default {

src/hosting.test.js

@@ -67,7 +67,7 @@ describe("hosting", () => {
       expect(res).toEqual(true);
     });
     it("sets the correct user agent header", async () => {
-      await hosting.check("google.com", requestHeaderComment);
+      await hosting.check("google.com", null, requestHeaderComment);
       expect(httpsGetSpy).toHaveBeenCalledTimes(1);
       expect(httpsGetSpy).toHaveBeenLastCalledWith(
         expect.any(String),