jyapayne/kaboot
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Queue concurrent uploads instead of rejecting with 503

Browse source 
Server: replace hard 503 rejection with a bounded queue (50 slots,
2min timeout) so requests wait for a processing slot instead of failing.

Client: upload files sequentially instead of via Promise.all, and
retry with exponential backoff on 503/504 responses.
This commit is contained in:
Joey Yakimowich-Payne 2026-02-19 13:55:38 -07:00
commit b52d6b1a6f
2 changed files with 66 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

53
hooks/useGame.ts
View file

@ -730,29 +730,41 @@ export const useGame = (defaultGameConfig?: GameConfig) => {
};
}, []);
const uploadDocument = async (file: File, useOcr: boolean = false): Promise<ProcessedDocument> => {
const uploadDocument = async (file: File, useOcr: boolean = false, maxRetries = 5): Promise<ProcessedDocument> => {
if (!auth.user?.access_token) {
throw new Error('Authentication required to upload documents');
}
const formData = new FormData();
formData.append('document', file);
formData.append('useOcr', String(useOcr));
const response = await fetch(`${BACKEND_URL}/api/upload`, {
method: 'POST',
headers: {
'Authorization': `Bearer ${auth.user.access_token}`,
},
body: formData
});
if (!response.ok) {
const error = await response.json();
throw new Error(error.error || 'Failed to upload document');
for (let attempt = 0; attempt <= maxRetries; attempt++) {
const formData = new FormData();
formData.append('document', file);
formData.append('useOcr', String(useOcr));
const response = await fetch(`${BACKEND_URL}/api/upload`, {
method: 'POST',
headers: {
'Authorization': `Bearer ${auth.user.access_token}`,
},
body: formData
});
if (response.status === 503 || response.status === 504) {
if (attempt < maxRetries) {
const delay = Math.min(1000 * 2 ** attempt, 15000);
await new Promise(r => setTimeout(r, delay));
continue;
}
}
if (!response.ok) {
const error = await response.json();
throw new Error(error.error || 'Failed to upload document');
}
return response.json();
}
return response.json();
throw new Error('Failed to upload document after multiple retries');
};
const startQuizGen = async (options: {
@ -773,9 +785,10 @@ export const useGame = (defaultGameConfig?: GameConfig) => {
let documents: ProcessedDocument[] | undefined;
if (options.files && options.files.length > 0) {
documents = await Promise.all(
options.files.map(file => uploadDocument(file, options.useOcr))
);
documents = [];
for (const file of options.files) {
documents.push(await uploadDocument(file, options.useOcr));
}
}
const generateOptions: GenerateQuizOptions = {