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Chore/RateLimit #957

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merged 1 commit into from
Sep 21, 2023
Merged

Chore/RateLimit #957

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2 changes: 2 additions & 0 deletions packages/server/src/commands/start.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,7 @@ export default class Start extends Command {
LOG_LEVEL: Flags.string(),
TOOL_FUNCTION_BUILTIN_DEP: Flags.string(),
TOOL_FUNCTION_EXTERNAL_DEP: Flags.string(),
NUMBER_OF_PROXIES: Flags.string(),
DATABASE_TYPE: Flags.string(),
DATABASE_PATH: Flags.string(),
DATABASE_PORT: Flags.string(),
Expand Down Expand Up @@ -72,6 +73,7 @@ export default class Start extends Command {

if (flags.PORT) process.env.PORT = flags.PORT
if (flags.DEBUG) process.env.DEBUG = flags.DEBUG
if (flags.NUMBER_OF_PROXIES) process.env.NUMBER_OF_PROXIES = flags.NUMBER_OF_PROXIES

// Authorization
if (flags.FLOWISE_USERNAME) process.env.FLOWISE_USERNAME = flags.FLOWISE_USERNAME
Expand Down
14 changes: 9 additions & 5 deletions packages/server/src/utils/rateLimit.ts
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Expand Up @@ -12,7 +12,7 @@ async function addRateLimiter(id: string, duration: number, limit: number, messa
rateLimiters[id] = rateLimit({
windowMs: duration * 1000,
max: limit,
handler: (req, res) => {
handler: (_, res) => {
res.status(429).send(message)
}
})
Expand All @@ -33,15 +33,19 @@ export function getRateLimiter(req: Request, res: Response, next: NextFunction)

export async function createRateLimiter(chatFlow: IChatFlow) {
if (!chatFlow.apiConfig) return
const apiConfig: any = JSON.parse(chatFlow.apiConfig)
const apiConfig = JSON.parse(chatFlow.apiConfig)

const rateLimit: { limitDuration: number; limitMax: number; limitMsg: string } = apiConfig.rateLimit
if (!rateLimit) return

const { limitDuration, limitMax, limitMsg } = rateLimit
if (limitMax && limitDuration && limitMsg) await addRateLimiter(chatFlow.id, limitDuration, limitMax, limitMsg)
}

export async function initializeRateLimiter(chatFlowPool: IChatFlow[]) {
await chatFlowPool.map(async (chatFlow) => {
await createRateLimiter(chatFlow)
})
await Promise.all(
chatFlowPool.map(async (chatFlow) => {
await createRateLimiter(chatFlow)
})
)
}