Issue #69: ElasticSearch client and env commented

.env.example

 NODE_ENV=development
 
 # db config
+# Machine that hosts the database
 DB_HOST=localhost
-MAILER_HOST=smtp.c3sl.ufpr.br
-MAILER_PORT=25
 DB_USER=postgres
 DB_PASSWORD=postgres
 DB_NAME=hono_db
 DB_PORT=5433
+# Usually a URL is used for connections 
 DB_URL=postgresql://${DB_USER}:${DB_PASSWORD}@${DB_HOST}:${DB_PORT}/${DB_NAME}
-URL=https://mecred.c3sl.ufpr.br/
 
-# secret
-APP_SECRET=
+# Mailer config 
+# Mailer service address
+MAILER_HOST=smtp.c3sl.ufpr.br
+# Mailer service port
+MAILER_PORT=25
+# URL used for email riderecting, this should be the frontend site name like "https://mecred.c3sl.ufpr.br"  
+URL=EmailURL
+
+# secret used for JWT and crypt
+APP_SECRET=VeryLongUniqueSecret
 
-#s3
+#s3 config 
 AWS_ACCESS_KEY_ID=
 AWS_SECRET_ACCESS_KEY=
 AWS_REGION=default
-S3_BUCKET=mecredteste
+S3_BUCKET=BucketName
 
+# ElasticSearch config 
 ELASTICSEARCH_USER=elastic
-ELASTICSEARCH_PASSWORD=123
+ELASTICSEARCH_PASSWORD=ChangeThis
 ELASTICSEARCH_HOST=localhost
 ELASTICSEARCH_PORT=9200
 ELASTICSEARCH_URL=http://${ELASTICSEARCH_USER}:${ELASTICSEARCH_PASSWORD}@${ELASTICSEARCH_HOST}:${ELASTICSEARCH_PORT}
+
+# ES Index config 
+# Index can be anything, as long as it identifies who is indexing
 ELASTIC_INDEX_PREFIX=
 ELASTIC_INDEX_RESOURCES=${ELASTIC_INDEX_PREFIX}_resources
 ELASTIC_INDEX_COLLECTIONS=${ELASTIC_INDEX_PREFIX}_collections

src/search/index.ts

@@ -6,6 +6,11 @@ import { Container } from 'typedi'
 export const es = new Client({
   node: env.ELASTICSEARCH_URL,
   Connection: HttpConnection,
+  tls: {
+    // This ignores TLS. This can only be used when ES is protected behind 
+    // a firewall, like in  c3sl. Otherwise this has to use certs.
+    rejectUnauthorized: false 
+  }
 })
 
 // Register the Elasticsearch client in the DI container