@trpc-limiter/memory

Memory store adapter for tRPC limiter.

Install

``bash
npm install @trpc-limiter/memory@latest
`

Usage

`ts
import { initTRPC, TRPCError } from '@trpc/server'
import type { IContext } from './context'
import {
createTRPCStoreLimiter,
defaultFingerPrint,
} from '@trpc-limiter/memory'

type IContext = {
req: Request // your request type
}

export const root = initTRPC.context().create()

const limiter = createTRPCStoreLimiter({
fingerprint: (ctx) => defaultFingerPrint(ctx.req),
windowMs: 20000,
message: (retryAfter) =>
Too many requests, please try again later. ${retryAfter},
max: 15,
onLimit: (retryAfter, _ctx, fingerprint) => {
console.log(retryAfter, fingerprint)
throw new TRPCError({
code: 'INTERNAL_SERVER_ERROR',
message: 'Too many requests unique',
})
},
})

export const rateLimitedProcedure = root.procedure.use(limiter)
`

`ts
import { initTRPC } from '@trpc/server'
import { type NextApiRequest } from 'next'
import {
createTRPCStoreLimiter,
defaultFingerPrint,
} from '@trpc-limiter/memory'

type Context = {
req: NextApiRequest
}

const t = initTRPC.context().create()

const rateLimiter = createTRPCStoreLimiter({
fingerprint: (ctx) => defaultFingerPrint(ctx.req),
message: (hitInfo) =>
Too many requests, please try again later. ${Math.ceil(
(hitInfo.reset - Date.now()) / 1000
)},
max: 15,
windowMs: 10000,
})

export const rateLimitedProcedure = t.procedure.use(rateLimiter)
``