Add rewrite hostname

Author: igba.ujege

proxies/sandbox/apiproxy/resources/jsc/RewriteHostName.js

@@ -0,0 +1,19 @@
+var response = context.getVariable("response.content");
+var json = JSON.parse(response);
+
+if (json.place) {
+  // Loop over each item in the search result array, re-writing the hostname to that of the initial request
+  json.place.forEach(value => {
+    var request_hostname = context.getVariable("request_hostname_env");
+    // Annoyingly, Apigee's version of JS doesn't support regex look-behinds,
+    // so we grab the env string including https:// prefix
+    var hostname_regex = /(^https:\/\/([a-zA-Z\-]+\.)+)nhs\.uk/gm;
+    var rewritten_url = value.url.replace(hostname_regex, "https://" + request_hostname);
+    value.url = rewritten_url;
+    // value.url = value.url.replace("api-version=1", "api-version=2");
+    // value.url = value.url.replace("service-search", "service-search-api");
+  });
+
+  // Update the response payload with the corrected urls
+  context.setVariable("message.content", JSON.stringify(json));
+}