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fix: ignore stale run reconnect conflicts (#3284)

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* fix: ignore stale run reconnect conflicts

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* fix: ignore stale run reconnect conflicts

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
This commit is contained in:
zgenu
2026-05-28 17:29:30 +08:00
committed by GitHub
parent 8decfd327e
commit 737abc0e45
2 changed files with 179 additions and 6 deletions
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frontend/src/core/api/api-client.ts
+56 -6
View File
@@ -38,6 +38,47 @@ function injectCsrfHeader(_url: URL, init: RequestInit): RequestInit {
return { ...init, headers };
}
export function isInactiveRunStreamError(error: unknown): boolean {
const status =
typeof error === "object" && error !== null
? Reflect.get(error, "status")
: undefined;
const message =
typeof error === "string"
? error
: error instanceof Error
? error.message
: typeof error === "object" && error !== null
? String(Reflect.get(error, "message") ?? "")
: "";
// Match the gateway's store-only run response in
// backend/app/gateway/routers/thread_runs.py until the API exposes a
// structured error code for inactive run streams.
return (
(status === 409 || message.includes("HTTP 409")) &&
message.includes("not active on this worker") &&
message.includes("cannot be streamed")
);
}
export function clearReconnectRun(
threadId: string | null | undefined,
runId: string,
): void {
if (typeof window === "undefined" || !threadId) return;
const key = `lg:stream:${threadId}`;
try {
const storage = window.sessionStorage;
if (storage.getItem(key) === runId) {
storage.removeItem(key);
}
} catch {
// Ignore storage access failures so reconnect cleanup never throws.
}
}
function createCompatibleClient(isMock?: boolean): LangGraphClient {
if (isStaticWebsiteOnly() && !isMock) {
return createStaticClient();
@@ -59,12 +100,21 @@ function createCompatibleClient(isMock?: boolean): LangGraphClient {
)) as typeof client.runs.stream;
const originalJoinStream = client.runs.joinStream.bind(client.runs);
client.runs.joinStream = ((threadId, runId, options) =>
originalJoinStream(
threadId,
runId,
sanitizeRunStreamOptions(options),
)) as typeof client.runs.joinStream;
client.runs.joinStream = async function* (threadId, runId, options) {
try {
yield* originalJoinStream(
threadId,
runId,
sanitizeRunStreamOptions(options),
);
} catch (error) {
if (isInactiveRunStreamError(error)) {
clearReconnectRun(threadId, runId);
return;
}
throw error;
}
} as typeof client.runs.joinStream;
return client;
}