Get data from Apache Pulsar

Get data from an Apache Pulsar topic. You must create a connection to use this source function. See Create a connection for the DSP Apache Pulsar SSL Connector.

Function output schema

This function outputs records with the schema described in the following table.

Key	Description
key	The key of the record as a string.
value	The payload of the record in bytes.
topic	The name of the Pulsar topic where the record is stored, given as a string.
messageId	The message ID of the record, given as a string.

The following is an example of a typical record from the pulsar function:

{
"key": "my-key",
"value": "aGVsbG8gd29ybGQ=",
"topic": "my-pulsar-topic",
"messageId": 1:24
}

Required arguments

connection_id

Syntax: string

Description: The ID of your Pulsar connection.

Example: "576205b3-f6f5-4ab7-8ffc-a4089a95d0c4"

topic

Syntax: string

Description: The name of the Pulsar topic.

Example: "my-pulsar-topic"

SPL2 example

You can write the function by providing the arguments in this exact order.

| from pulsar("my-connection-id", "my-topic") |...;

Alternatively, you can use named arguments to list the arguments in any order. See the "Named arguments" section in SPL2 syntax for more details.

| from pulsar(topic: "my-topic", connection_id: "my-connection-id") |...;