CODEWITHSUNDEEP
javaapache-kafkaapache-kafka-streamsktable
anmol
anmol

Reputation: 1

Printing Kafka KTable Data

I have this method which input's a JSON payload. I want to create a K-table out of this payload, read the data out of it and print it.

So far, I am to create the KTable, but when I iterate over it, the control skips over it.

Please can anyone help me/guide me where am I going wrong or what I am I missing?

Thanks.

 public void twilioKTable(JsonNode payloadJson) throws JsonProcessingException {
        String payload = payloadJson.toString();
        final StreamsBuilder builder = new StreamsBuilder();
        final KTable<String, String> kTable = builder.table("testktable");

        kTable.toStream().map((key, value) -> new KeyValue<>(key, value))
                .foreach(new ForeachAction<String, String>() {
                    public void apply(String key, String value) {
                        System.out.println("From MAP " + key + ": Value " +
                                value);
                    }
                });
    }

Upvotes: 0

Views: 1166

Answers (1)

elhose
elhose

Reputation: 348

You could also use .peek() method in KStream to print every key with value

Upvotes: 1

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