anomalyco/opencode
1
0
Fork 0
mirror of https://github.com/anomalyco/opencode.git synced 2026-07-22 18:25:32 -04:00
Code Issues 5.9k Packages Projects Releases 19 Wiki Activity

SDK SSE client ignores custom fetch - blocks containerized/sandboxed environments #7232

New Issue
Open
opened 2026-02-16 18:06:31 -05:00 by yindo · 5 comments
yindo commented 2026-02-16 18:06:31 -05:00
Owner
Copy Link
Copy Source

Originally created by @kalepail on GitHub (Jan 22, 2026).

Originally assigned to: @rekram1-node on GitHub.

Description

The @opencode-ai/sdk SSE client in serverSentEvents.gen.js calls the global fetch() instead of options.fetch, which means custom fetch implementations are ignored for SSE subscriptions. This blocks usage in containerized environments (like Cloudflare Sandbox) that require custom fetch adapters.

Bug Location:

  • File: node_modules/@opencode-ai/sdk/dist/gen/core/serverSentEvents.gen.js
  • Line 20:
const response = await fetch(url, { ...options, headers, signal });

This calls the global fetch() directly instead of using options.fetch.

Expected Behavior:
The SSE client should use the custom fetch if provided:

const _fetch = options.fetch ?? globalThis.fetch;
const response = await _fetch(request);

Root Cause: The SDK's client architecture correctly supports custom fetch (client.gen.js:16 merges it, client.gen.js:137-146 passes it to createSseClient), but serverSentEvents.gen.js:20 ignores it.

Upstream Fix Available: This is fixed in @hey-api/openapi-ts:
https://github.com/hey-api/openapi-ts/blob/main/packages/openapi-ts/src/plugins/@hey-api/client-core/bundle/serverSentEvents.ts#L111-L113

Request: Please regenerate the SDK with the latest @hey-api/openapi-ts version.

Related: https://github.com/hey-api/openapi-ts/issues/772

Plugins

N/A - using SDK programmatically in Cloudflare Workers

OpenCode version

@opencode-ai/sdk: 1.1.31

Steps to reproduce

  1. Create OpenCode client with custom fetch: createOpencodeClient({ fetch: customFetch })
  2. Call client.event.subscribe()
  3. Observe that customFetch is never called - global fetch() is used instead

Screenshot and/or share link

N/A - SDK bug, not UI issue

Operating System

Cloudflare Workers + Sandbox runtime

Terminal

N/A - headless/programmatic usage

Originally created by @kalepail on GitHub (Jan 22, 2026). Originally assigned to: @rekram1-node on GitHub. ### Description The `@opencode-ai/sdk` SSE client in `serverSentEvents.gen.js` calls the global `fetch()` instead of `options.fetch`, which means custom fetch implementations are ignored for SSE subscriptions. This blocks usage in containerized environments (like Cloudflare Sandbox) that require custom fetch adapters. **Bug Location:** - **File:** `node_modules/@opencode-ai/sdk/dist/gen/core/serverSentEvents.gen.js` - **Line 20:** ```javascript const response = await fetch(url, { ...options, headers, signal }); ``` This calls the **global `fetch()`** directly instead of using `options.fetch`. **Expected Behavior:** The SSE client should use the custom fetch if provided: ```javascript const _fetch = options.fetch ?? globalThis.fetch; const response = await _fetch(request); ``` **Root Cause:** The SDK's client architecture correctly supports custom fetch (`client.gen.js:16` merges it, `client.gen.js:137-146` passes it to `createSseClient`), but `serverSentEvents.gen.js:20` ignores it. **Upstream Fix Available:** This is fixed in `@hey-api/openapi-ts`: https://github.com/hey-api/openapi-ts/blob/main/packages/openapi-ts/src/plugins/@hey-api/client-core/bundle/serverSentEvents.ts#L111-L113 **Request:** Please regenerate the SDK with the latest `@hey-api/openapi-ts` version. **Related:** https://github.com/hey-api/openapi-ts/issues/772 ### Plugins N/A - using SDK programmatically in Cloudflare Workers ### OpenCode version @opencode-ai/sdk: 1.1.31 ### Steps to reproduce 1. Create OpenCode client with custom fetch: `createOpencodeClient({ fetch: customFetch })` 2. Call `client.event.subscribe()` 3. Observe that `customFetch` is never called - global `fetch()` is used instead ### Screenshot and/or share link N/A - SDK bug, not UI issue ### Operating System Cloudflare Workers + Sandbox runtime ### Terminal N/A - headless/programmatic usage
yindo commented 2026-02-16 18:06:32 -05:00
Author
Owner
Copy Link
Copy Source

@github-actions[bot] commented on GitHub (Jan 22, 2026):

This issue might be a duplicate of existing issues. Please check:

  • #2840: Empty SSE Events Leak Through Opencode Stream Processor - Related to SSE client behavior and event processing in serverSentEvents.gen.ts

Feel free to ignore if none of these address your specific case.

@github-actions[bot] commented on GitHub (Jan 22, 2026): This issue might be a duplicate of existing issues. Please check: - #2840: Empty SSE Events Leak Through Opencode Stream Processor - Related to SSE client behavior and event processing in serverSentEvents.gen.ts Feel free to ignore if none of these address your specific case.
yindo commented 2026-02-16 18:06:32 -05:00
Author
Owner
Copy Link
Copy Source

@mrlubos commented on GitHub (Jan 24, 2026):

@kalepail I'm pretty sure OpenCode is using the version with the code you shared, are you sure that's where the issue is? You could also open an issue upstream if it's broken in https://github.com/hey-api/openapi-ts

@mrlubos commented on GitHub (Jan 24, 2026): @kalepail I'm pretty sure OpenCode is using the version with the code you shared, are you sure that's where the issue is? You could also open an issue upstream if it's broken in https://github.com/hey-api/openapi-ts
yindo commented 2026-02-16 18:06:32 -05:00
Author
Owner
Copy Link
Copy Source

@kalepail commented on GitHub (Jan 26, 2026):

Any time I've tried to use the events streaming at least with Cloudflare Workers it doesn't work. When I set to consuming events myself with my own interpreter it does. I don't know much about the project but whenever I point any LLM at it they all agree and can confirm by looking at the underlying compiled code that it's using the wrong fetch for event streaming

@kalepail commented on GitHub (Jan 26, 2026): Any time I've tried to use the events streaming at least with Cloudflare Workers it doesn't work. When I set to consuming events myself with my own interpreter it does. I don't know much about the project but whenever I point any LLM at it they all agree and can confirm by looking at the underlying compiled code that it's using the wrong `fetch` for event streaming
yindo commented 2026-02-16 18:06:32 -05:00
Author
Owner
Copy Link
Copy Source

@mrlubos commented on GitHub (Jan 26, 2026):

Do let me know if this is an issue in Hey API, I'd look into it

@mrlubos commented on GitHub (Jan 26, 2026): Do let me know if this is an issue in Hey API, I'd look into it
yindo commented 2026-02-16 18:06:32 -05:00
Author
Owner
Copy Link
Copy Source

@goleary commented on GitHub (Feb 5, 2026):

Same here. We can't subscribe to events through the sdk (from a cloudflare worker/DO) when we are running opencode on a cloudflare sandbox (because @cloudflare/sandbox passes containerFetch which is not honored when using client.event.subscribe)

For now we're working around it by using sandbox.containerFetch directly for the SSE /event endpoint and parsing the stream manually.

@goleary commented on GitHub (Feb 5, 2026): Same here. We can't subscribe to events through the sdk (from a cloudflare worker/DO) when we are running opencode on a cloudflare sandbox (because [`@cloudflare/sandbox` passes containerFetch](https://github.com/cloudflare/sandbox-sdk/blob/d6d346059582f40d90c8c3f55c40a276b54352ec/packages/sandbox/src/opencode/opencode.ts#L374) which is not honored when using `client.event.subscribe`) For now we're working around it by using sandbox.containerFetch directly for the SSE /event endpoint and parsing the stream manually.
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
acp
bad
bug
discussion
docs
documentation
enhancement
extension
good first issue
growth
help-wanted
mcp
model-problem
needs:compliance
nix
opentui
perf
pull-request
Mirrored from GitHub Pull Request
 tui
web
windows
zen
No Label
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
yindo
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: anomalyco/opencode#7232
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?