Avoid to use "pubsub" for the name of modules, middlewares, variables, etc..

lib/api/api-router.js

@@ -21,7 +21,7 @@ const OverviewsMetadataBackend = require('../backends/overviews-metadata');
 const FilterStatsApi = require('../backends/filter-stats');
 const TablesExtentBackend = require('../backends/tables-extent');
 const ClusterBackend = require('../backends/cluster');
-const PubSubMetricsBackend = require('../backends/pubsub-metrics');
+const PubSubMetricsBackend = require('../backends/metrics');
 
 const LayergroupAffectedTablesCache = require('../cache/layergroup-affected-tables');
 const SurrogateKeysCache = require('../cache/surrogate-keys-cache');

lib/api/map/anonymous-map-controller.js

@@ -23,7 +23,7 @@ const mapError = require('../middlewares/map-error');
 const CreateLayergroupMapConfigProvider = require('../../models/mapconfig/provider/create-layergroup-provider');
 const rateLimit = require('../middlewares/rate-limit');
 const { RATE_LIMIT_ENDPOINTS_GROUPS } = rateLimit;
-const metrics = require('../middlewares/pubsub-metrics');
+const metrics = require('../middlewares/metrics');
 
 module.exports = class AnonymousMapController {
     /**

lib/api/map/preview-template-controller.js

@@ -12,7 +12,7 @@ const lastModifiedHeader = require('../middlewares/last-modified-header');
 const checkStaticImageFormat = require('../middlewares/check-static-image-format');
 const rateLimit = require('../middlewares/rate-limit');
 const { RATE_LIMIT_ENDPOINTS_GROUPS } = rateLimit;
-const metrics = require('../middlewares/pubsub-metrics');
+const metrics = require('../middlewares/metrics');
 
 const DEFAULT_ZOOM_CENTER = {
     zoom: 1,

lib/api/middlewares/metrics.js

@@ -3,9 +3,9 @@
 const EVENT_VERSION = '1';
 const MAX_LENGTH = 100;
 
-module.exports = function pubSubMetrics ({ enabled, metricsBackend, logger, tags }) {
+module.exports = function metrics ({ enabled, metricsBackend, logger, tags }) {
     if (!enabled) {
-        return function pubSubMetricsDisabledMiddleware (req, res, next) {
+        return function metricsDisabledMiddleware (req, res, next) {
             next();
         };
     }
@@ -14,13 +14,13 @@ module.exports = function pubSubMetrics ({ enabled, metricsBackend, logger, tags
         throw new Error('Missing required "event" parameter to report metrics');
     }
 
-    return function pubSubMetricsMiddleware (req, res, next) {
+    return function metricsMiddleware (req, res, next) {
         res.on('finish', () => {
             const { event, attributes } = getEventData(req, res, tags);
 
             metricsBackend.send(event, attributes)
-                .then(() => logger.debug(`PubSubTracker: event '${event}' published succesfully`))
-                .catch((error) => logger.error(`ERROR: pubsub middleware failed to publish event '${event}': ${error.message}`));
+                .then(() => logger.debug(`Event "${event}" published succesfully`))
+                .catch((error) => logger.error(`Failed to publish event "${event}": ${error.message}`));
         });
 
         return next();

lib/api/template/named-template-controller.js

@@ -21,7 +21,7 @@ const NamedMapMapConfigProvider = require('../../models/mapconfig/provider/named
 const CreateLayergroupMapConfigProvider = require('../../models/mapconfig/provider/create-layergroup-provider');
 const rateLimit = require('../middlewares/rate-limit');
 const { RATE_LIMIT_ENDPOINTS_GROUPS } = rateLimit;
-const metrics = require('../middlewares/pubsub-metrics');
+const metrics = require('../middlewares/metrics');
 
 module.exports = class NamedMapController {
     /**