dosubot[bot] commented on issue #759: URL: https://github.com/apache/hugegraph-toolchain/issues/759#issuecomment-5385073424
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Learn more: https://dosu.dev --> <!-- Answer --> Good bug report — I've traced through the relevant code and can confirm the root cause and a precise fix path. **Root cause** `HugeClient.checkServerApiVersion()` sets `supportGs` to `false` for any server with Core < 1.7.0 [[1]](https://github.com/apache/hugegraph-toolchain/blob/bc49e6683fcc8f00e32d290cd558a0320c1850a3/hugegraph-client/src/main/java/org/apache/hugegraph/driver/HugeClient.java#L181-L182): ```java boolean supportGs = VersionUtil.gte(this.version.getCoreVersion(), "1.7.0"); this.client.setSupportGs(supportGs); ``` When `supportGs` is `false`, every REST call strips the `graphspaces/DEFAULT/` prefix [[2]](https://github.com/apache/hugegraph-toolchain/blob/bc49e6683fcc8f00e32d290cd558a0320c1850a3/hugegraph-client/src/main/java/org/apache/hugegraph/client/RestClient.java#L81-L85): ```java private static String removeDefaultGsPrefix(String path) { final String DEFAULT_GS_PATH_PREFIX = "graphspaces/DEFAULT/"; return path.replaceFirst(DEFAULT_GS_PATH_PREFIX, EMPTY); } ``` `AuthAPI` builds its path as `graphspaces/%s/auth/%s` [[3]](https://github.com/apache/hugegraph-toolchain/blob/bc49e6683fcc8f00e32d290cd558a0320c1850a3/hugegraph-client/src/main/java/org/apache/hugegraph/api/auth/AuthAPI.java#L26-L36), so after prefix removal the resolved path becomes `/auth/users`. But Server 1.5 requires `/graphs/{graph}/auth/users` — that legacy graph-scoped path simply doesn't exist in the current `AuthAPI`. Additionally, `UserAPI` has no `getByName()` method [[4]](https://github.com/apache/hugegraph-toolchain/blob/bc49e6683fcc8f00e32d290cd558a0320c1850a3/hugegraph-client/src/main/java/org/apache/hugegraph/api/auth/UserAPI.java), so the Server 1.5 `users` wrapper response can't be parsed either. **Why `graph` is lost** `AuthManager` accepts `graph` in its constructor but never forwards it to `UserAPI` — it only passes `graphSpace` [[5]](https://github.com/apache/hugegraph-toolchain/blob/bc49e6683fcc8f00e32d290cd558a0320c1850a3/hugegraph-client/src/main/java/org/apache/hugegraph/driver/AuthManager.java#L62-L73): ```java public AuthManager(RestClient client, String graphSpace, String graph) { ... this.userAPI = new UserAPI(client, graphSpace); ... } ``` On the Hubble side, `HugeClientUtil.tryConnect()` calls `HugeClient.builder(url, graph)`, which defaults `graphSpace` to `"DEFAULT"` [[6]](https://github.com/apache/hugegraph-toolchain/blob/bc49e6683fcc8f00e32d290cd558a0320c1850a3/hugegraph-hubble/hubble-be/src/main/java/org/apache/hugegraph/util/HugeClientUtil.java#L64-L70) [[7]](https://github.com/apache/hugegraph-toolchain/blob/bc49e6683fcc8f00e32d290cd558a0320c1850a3/hugegraph-client/src/main/java/org/apache/hugegraph/driver/HugeClient.java#L125-L126). The `graph` name does flow into `initManagers → AuthManager`, but `AuthManager` discards it. **Fix approach (aligns with your proposal)** 1. **Add a legacy path constant in `AuthAPI`** — e.g. `"graphs/%s/auth/%s"` — and select it when `supportGs` is `false` and a `graph` name is available. 2. **Thread `graph` through `AuthManager` into `UserAPI`** — the constructor already receives it; just forward it. 3. **Add `getByName()` to `UserAPI`** — issue `GET /graphs/{graph}/auth/users?name={name}` and parse the `users` list wrapper that Server 1.5 returns. 4. **Preserve modern behavior** — when `supportGs` is `true` (Core ≥ 1.7.0), keep the existing `graphspaces/DEFAULT/auth/users` path. 5. **Tests** — the existing `UserApiTest` only exercises the GraphSpace constructor [[8]](https://github.com/apache/hugegraph-toolchain/blob/bc49e6683fcc8f00e32d290cd558a0320c1850a3/hugegraph-client/src/test/java/org/apache/hugegraph/api/auth/UserApiTest.java#L37-L39). Add a variant that constructs `UserAPI` with a graph name and `supportGs = false` to cover the legacy path and response parsing. <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](<https://go.dosu.dev/dosubot?utm_source=github&utm_medium=bot-comment&utm_campaign=github-comment-footer-20260415&utm_content=reply-with-mention&utm_term=apache%2Fhugegraph-toolchain>).* --- Docs are dead. Just use [Dosu](https://dosu.dev?utm_source=github&utm_medium=bot-comment&utm_campaign=github-comment-footer-20260415&utm_content=static-docs-tagline&utm_term=apache%2Fhugegraph-toolchain). 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