BewareMyPower commented on code in PR #433:
URL:
https://github.com/apache/pulsar-client-node/pull/433#discussion_r2380972705
##########
tests/producer.test.js:
##########
@@ -156,5 +159,95 @@ const Pulsar = require('../index');
await producer2.close();
});
});
+ describe('Message Routing', () => {
+ test('Custom Message Router', async () => {
+ // 1. Define a partitioned topic and a custom router
+ const targetPartition = 1;
+ const partitionedTopicName = `test-custom-router-${Date.now()}`;
+ const partitionedTopic =
`persistent://public/default/${partitionedTopicName}`;
+ const numPartitions = 10;
+
+ // Use admin client to create a partitioned topic. This is more robust.
+ // Assuming 'adminUrl' and 'httpRequest' are available from your test
setup.
+ const partitionedTopicAdminURL =
`${adminUrl}/admin/v2/persistent/public/default/${partitionedTopicName}/partitions`;
+ const createPartitionedTopicRes = await httpRequest(
+ partitionedTopicAdminURL, {
+ headers: {
+ 'Content-Type': 'application/json', // Use application/json for
REST API
+ },
+ data: numPartitions,
+ method: 'PUT',
+ },
+ );
+ // 204 No Content is success for PUT create
+ expect(createPartitionedTopicRes.statusCode).toBe(204);
+
+ // 2. Create a producer with the custom message router
+ const producer = await client.createProducer({
+ topic: partitionedTopic, // Note: For producer, use the base topic
name
+ messageRouter: (message, topicMetadata) => targetPartition,
Review Comment:
It's better to show the router can get the message's key or value, as well
as the number of partitions from `topicMetadata`, otherwise the parameters will
be meaningless
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