Use returned base_uri.

[R/project-using-kafka-in-R.git] / kafkaConsumer.R

diff --git a/kafkaConsumer.R b/kafkaConsumer.R
index 4a77beb3037cab472757235da05d4948362a327f..e7da6ed25a27319c4369494650da48d1b0dfcec4 100644 (file)
--- a/kafkaConsumer.R
+++ b/kafkaConsumer.R
@@ -22,14 +22,10 @@ response <- POST(url=paste(kafka_rest_proxy, "consumers", consumer, sep="/"),
                  consumer_instance,
                  '", "format": "json", "auto.offset.reset": "earliest"}')
      )
-fromJSON(content(response, "text"))
+consumerDetails <- fromJSON(content(response, "text"))
 
 # Subscribe it to topic
-response <- POST(url=paste(kafka_rest_proxy,
-                           "consumers",
-                           consumer,
-                           "instances",
-                           consumer_instance,
+response <- POST(url=paste(consumerDetails$base_uri,
                            "subscription", sep="/"),
                content_type("application/vnd.kafka.v2+json"),
                body = paste0('{"topics":["',
@@ -39,7 +35,7 @@ response <- POST(url=paste(kafka_rest_proxy,
 response
 
 # Obtain all (or latest) messages on the topic
-messagesJSON <- GET(url = paste(kafka_rest_proxy,"consumers",consumer,"instances",consumer_instance,"records", sep = "/"),
+messagesJSON <- GET(url = paste(consumerDetails$base_uri,"records", sep = "/"),
                 accept("application/vnd.kafka.json.v2+json"),
                 encode="json")
 
@@ -50,7 +46,7 @@ createPlot(messages$value)
 Sys.sleep(120)
 
 # Obtain latest messages
-messagesJSON <- GET(url = paste(kafka_rest_proxy,"consumers",consumer,"instances",consumer_instance,"records", sep = "/"),
+messagesJSON <- GET(url = paste(consumerDetails$base_uri,"records", sep = "/"),
                 accept("application/vnd.kafka.json.v2+json"),
                 encode="json")
 
@@ -61,5 +57,5 @@ apachelog <- rbind(messages$value,messages2$value)
 createPlot(apachelog)
 
 # Remove the consumer
-DELETE(url = paste(kafka_rest_proxy,"consumers",consumer,"instances",consumer_instance, sep = "/"),
+DELETE(url = consumerDetails$base_uri,
        content_type("application/vnd.kafka.v2+json"))