Add custom URL path configuration for load balancer routing #2689
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- Added CUSTOM_URL_PATH property to ClientConfigProperties - Added customURLPath() builder method to Client.Builder - Modified HttpAPIClientHelper.executeRequest to append custom path to URLs - Added comprehensive unit tests for the new feature - All tests passing Co-authored-by: chernser <827456+chernser@users.noreply.github.com>
- Extracted common URL building logic into helper method - Improved code maintainability by reducing duplication - Clarified documentation for customURLPath parameter Co-authored-by: chernser <827456+chernser@users.noreply.github.com>
- Created detailed usage guide with examples - Documented various scenarios and use cases - Added load balancer configuration example - Included compatibility information Co-authored-by: chernser <827456+chernser@users.noreply.github.com>
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[WIP] Add support for custom URL path in client configuration
Add custom URL path configuration for load balancer routing
Dec 10, 2025
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- Rewrote tests to exercise actual production code - Tests now call Client.Builder.customURLPath() method - Tests verify ClientConfigProperties.CUSTOM_URL_PATH configuration - Tests check configuration parsing and various path formats - Removed integration tests that required running server - All tests are unit tests that exercise the production code directly Co-authored-by: chernser <827456+chernser@users.noreply.github.com>
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The tests were checking for exactly 32 configuration properties, but the new CUSTOM_URL_PATH property increased the count to 33. Updated both testDefaultSettings and testWithOldDefaults assertions. Co-authored-by: chernser <827456+chernser@users.noreply.github.com>
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The test at line 257 calls useTimeZone() which adds an extra configuration property (USE_TIMEZONE), so it has one more property than the other tests. Updated the assertion to expect 34 instead of 33. Co-authored-by: chernser <827456+chernser@users.noreply.github.com>
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Summary
Enables routing to different ClickHouse instances behind a load balancer by configuring custom URL paths (e.g.,
/sales/db,/app/db). Database selection remains viaX-ClickHouse-Databaseheader.Changes
ClientConfigProperties: AddedCUSTOM_URL_PATHproperty (String, default: "")Client.Builder: AddedcustomURLPath(String)method for fluent configurationHttpAPIClientHelper.executeRequest(): Appends custom path to base URL viaURIBuilder, handles path concatenationClient.Builder.customURLPath()method,ClientConfigProperties.CUSTOM_URL_PATHconfiguration, and configuration parsing with various path formatsClientTeststo account for the newCUSTOM_URL_PATHproperty:useTimeZone()which adds an additional property)Example
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