client-instances WIP

packages/unleash-api/lib/db/client-instances.js

@@ -0,0 +1,60 @@
+/* eslint camelcase: "off" */
+'use strict';
+
+const COLUMNS = ['app_name', 'instance_id', 'client_ip', 'last_seen', 'created_at'];
+const TABLE = 'client_instances';
+
+module.exports = function (db) {
+    function updateRow (details) {
+        return db(TABLE)
+            .where('app_name', details.appName)
+            .where('instance_id', details.instanceId)
+            .where('client_ip', details.clientIp)
+            .update({
+                last_seen: 'now()',
+            });
+    }
+
+    function insertNewRow (details) {
+        return db(TABLE).insert({
+            app_name: details.appName,
+            instance_id: details.instanceId,
+            client_ip: details.clientIp,
+        });
+    }
+
+    function insert (details) {
+        return db(TABLE)
+            .count('*')
+            .where('app_name', details.appName)
+            .where('instance_id', details.instanceId)
+            .where('client_ip', details.clientIp)
+            .map(row => ({ count: row.count }))
+            .then(rows => {
+                if (rows[0].count > 0) {
+                    return updateRow(details);
+                } else {
+                    return insertNewRow(details);
+                }
+            });
+    }
+
+    function getAll () {
+        return db
+            .select(COLUMNS)
+            .from(TABLE)
+            .map(mapRow);
+    }
+
+    function mapRow (row) {
+        return {
+            appName: row.app_name,
+            instanceId: row.instance_id,
+            clientIp: row.client_ip,
+            lastSeen: row.last_seen,
+            createdAt: row.created_at,
+        };
+    }
+
+    return { insert, getAll };
+};

packages/unleash-api/lib/db/index.js

@@ -0,0 +1,10 @@
+'use strict';
+const clientInstancesDbCreator = require('./client-instances');
+const clientMetricsDbCreator = require('./client-metrics');
+const clientStrategiesDbCreator = require('./client-strategies');
+
+module.exports = (db) => ({
+    clientInstancesDb: clientInstancesDbCreator(db),
+    clientMetricsDb: clientMetricsDbCreator(db),
+    clientStrategiesDb: clientStrategiesDbCreator(db),
+});

packages/unleash-api/lib/routes/metrics.js

@@ -5,9 +5,9 @@ const ClientMetrics = require('../client-metrics');
 const ClientMetricsService = require('../client-metrics-service');
 
 module.exports = function (app, config) {
-    const { metricsDb, clientStrategiesDb } = config;
+    const { clientMetricsDb, clientStrategiesDb } = config;
     const metrics = new ClientMetrics();
-    const service = new ClientMetricsService(metricsDb);
+    const service = new ClientMetricsService(clientMetricsDb);
 
     // Just som dummo demo data
     clientStrategiesDb.insertOrUpdate('demo-app', ['default', 'test']).then(() => console.log('inserted client_strategies'));

packages/unleash-api/migrations/20161104074441-create-client-instances.js

@@ -0,0 +1,3 @@
+'use strict';
+
+module.exports = require('../scripts/migration-runner').create('010-create-client-instances');

packages/unleash-api/migrations/sql/010-create-client-instances.down.sql

@@ -0,0 +1 @@
+DROP TABLE client_instances;

packages/unleash-api/migrations/sql/010-create-client-instances.up.sql

@@ -0,0 +1,7 @@
+CREATE TABLE client_instances (
+  app_name varchar(255),
+  instance_id varchar(255),
+  client_ip varchar(255),
+  last_seen timestamp default now(),
+  created_at timestamp default now()
+);

packages/unleash-api/server-impl.js

@@ -18,8 +18,7 @@ function createApp (options) {
     const eventStore = new EventStore(eventDb);
     const featureDb = require('./lib/db/feature')(db, eventStore);
     const strategyDb = require('./lib/db/strategy')(db, eventStore);
-    const metricsDb = require('./lib/db/metrics')(db);
-    const clientStrategiesDb = require('./lib/db/client-strategies')(db);
+    const { clientInstancesDb, clientMetricsDb, clientStrategiesDb } = require('./lib/db')(db);
 
     const config = {
         baseUriPath: options.baseUriPath,
@@ -30,8 +29,9 @@ function createApp (options) {
         eventStore,
         featureDb,
         strategyDb,
-        metricsDb,
+        clientMetricsDb,
         clientStrategiesDb,
+        clientInstancesDb,
     };
 
     const app = require('./app')(config);

packages/unleash-api/test/e2e/test-helper.js

@@ -11,8 +11,7 @@ const EventStore = require('../../lib/event-store');
 const eventStore = new EventStore(eventDb);
 const featureDb = require('../../lib/db/feature')(knex, eventStore);
 const strategyDb = require('../../lib/db/strategy')(knex, eventStore);
-const metricsDb = require('../../lib/db/metrics')(knex);
-const clientStrategiesDb = require('../../lib/db/client-strategies')(knex);
+const { clientInstancesDb, clientStrategiesDb, clientMetricsDb } = require('../../lib/db')(knex);
 
 
 const app = require('../../app')({
@@ -22,8 +21,9 @@ const app = require('../../app')({
     eventStore,
     featureDb,
     strategyDb,
-    metricsDb,
     clientStrategiesDb,
+    clientInstancesDb,
+    clientMetricsDb,
 });
 
 BPromise.promisifyAll(request);