LibreChat/api/server/services
MarcAmick ade02054c8
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🛟 fix: Keep File Uploads Alive With SSE Heartbeats (#14295)
* fix: Use SSE to upload files in order to avoid idle timeouts.  Idle timeouts can occur for example from gateways and other services like cloudfare when uploading large files.  For example during rag processing the file is uploaded to librechat which then sends it to rag.  While librechat is waiting for the embeddings to come back from rag the file upload is sitting idle.  Gateways tend to want to cancel the upload with an http 408 , 504, or 524.  This change uses SSE to perform the upload so that while librechat is sending the file to rag, it consistently sends back a heartbeat event to the client to keep the connection alive.  This is especially useful when utilizing  EMBEDDING_BATCH_SIZE in librechat rag which will allow rag to process signifigantly larger files without running out of memory.

* added tests to packages\api\src\files\sse.spec.ts in order to test the new sse.ts

* fix: Harden SSE file upload lifecycle

* style: Sort data provider imports

---------

Co-authored-by: Marc Amick <MarcAmick@jhu.edu>
Co-authored-by: Danny Avila <danny@librechat.ai>
2026-07-21 19:27:09 -04:00
..
__tests__ 🙋 feat: ask_user_question - agent-initiated questions with durable pause/resume (#14139) 2026-07-08 15:31:05 -04:00
Agents 📇 feat: Agent Contact Visibility with Owner Fallback (#13663) 2026-06-25 15:58:15 -04:00
Artifacts 🧵 fix: Preserve Fenced Markdown Artifacts (#14121) 2026-07-05 12:04:59 -04:00
Config ⚙️ perf: reduce first-load MongoDB round trips (#14101) 2026-07-06 09:36:34 -04:00
Endpoints 🖼️ feat: Return Sandbox Images From read_file as Viewable Artifacts (#14277) 2026-07-16 07:27:33 -04:00
Files 🛟 fix: Keep File Uploads Alive With SSE Heartbeats (#14295) 2026-07-21 19:27:09 -04:00
Runs
Skills 🧬 feat: Add GitHub Skill Sync (#13293) 2026-06-10 21:05:54 -04:00
start 🙋 feat: ask_user_question - agent-initiated questions with durable pause/resume (#14139) 2026-07-08 15:31:05 -04:00
Threads 🪪 fix: Scope Message Conversation Access (#13183) 2026-05-18 17:34:30 -04:00
Tools 🃏 fix: Attach Request-Scoped MCP Servers From the Builder via the mcp_all Wildcard (#14177) 2026-07-12 08:10:01 -04:00
ActionService.js fix: Extend and Decouple MCP OAuth Flow Timeouts (#13622) 2026-06-09 17:50:02 -04:00
ActionService.spec.js ⚗️ feat: Agent Context Compaction/Summarization (#12287) 2026-03-21 14:28:56 -04:00
AssistantService.js
AuthService.js 🔡 fix: Normalize Email Case When Issuing Verification Tokens (#14172) 2026-07-09 08:42:39 -04:00
AuthService.spec.js 🔡 fix: Normalize Email Case When Issuing Verification Tokens (#14172) 2026-07-09 08:42:39 -04:00
cleanup.js 📦 refactor: Consolidate DB models, encapsulating Mongoose usage in data-schemas (#11830) 2026-03-21 14:28:53 -04:00
createRunBody.js
GraphApiService.js 🪪 feat: Optimized Entra ID Group Sync with Auto-Creation (#12606) 2026-04-13 08:50:52 -04:00
GraphApiService.spec.js
GraphTokenService.js 🔒 feat: Add On-Behalf-Of (OBO) token exchange support for MCP Servers (#13429) 2026-06-01 22:36:18 -04:00
initializeMCPs.js 🔐 fix: Honor Admin-Panel MCP Allowlist Overrides Without Restart (#13814) 2026-06-17 20:14:53 -04:00
initializeMCPs.spec.js 🔐 fix: Honor Admin-Panel MCP Allowlist Overrides Without Restart (#13814) 2026-06-17 20:14:53 -04:00
initializeOAuthReconnectManager.js
MCP.js 🧵 feat: Background Tool Calls for Agents & Model Specs (#14197) 2026-07-13 12:51:36 -04:00
MCP.spec.js 🤫 refactor: Silent MCP OAuth Refresh on Mid-Session 401 (#13369) 2026-06-10 13:12:42 -04:00
MCPRequestContext.js 🪢 fix: Tie MCP Cleanup To Resumable Runs (#13769) 2026-06-15 15:26:03 -04:00
OboPolicyService.js 🔒 feat: Add On-Behalf-Of (OBO) token exchange support for MCP Servers (#13429) 2026-06-01 22:36:18 -04:00
OboTokenService.js 🔒 feat: Add On-Behalf-Of (OBO) token exchange support for MCP Servers (#13429) 2026-06-01 22:36:18 -04:00
OboTokenService.spec.js 🔒 feat: Add On-Behalf-Of (OBO) token exchange support for MCP Servers (#13429) 2026-06-01 22:36:18 -04:00
PermissionService.js 🚪 fix: Keep Owners From Being Locked Out of Their Own Resource When Sharing (#14347) 2026-07-20 22:27:25 -04:00
PermissionService.spec.js 🚪 fix: Keep Owners From Being Locked Out of Their Own Resource When Sharing (#14347) 2026-07-20 22:27:25 -04:00
PluginService.js
systemGrant.spec.js 📜 feat: Implement System Grants for Capability-Based Authorization (#11896) 2026-03-21 14:28:54 -04:00
ToolService.js 🧵 feat: Background Tool Calls for Agents & Model Specs (#14197) 2026-07-13 12:51:36 -04:00
twoFactorService.js 🔑 fix: Require OTP Verification for 2FA Re-Enrollment and Backup Code Regeneration (#12223) 2026-03-14 01:51:31 -04:00