build(spend-logs): separate server for writing spend logs to db

This commit is contained in:
Krrish Dholakia 2024-03-28 13:23:22 -07:00
parent 082f1e4085
commit 5a2e3d65cb
8 changed files with 713 additions and 0 deletions

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# Use the specific Node.js v20.11.0 image
FROM node:20.11.0
# Set the working directory inside the container
WORKDIR /usr/src/app
# Copy package.json and package-lock.json to the working directory
COPY package*.json ./
# Install dependencies
RUN npm install
# Install Prisma globally
RUN npm install -g prisma
# Copy the rest of the application code
COPY . .
# Generate Prisma client
RUN npx prisma generate
# Expose the port that the Node.js server will run on
EXPOSE 3000
# Command to run the Node.js app with npm run dev
CMD ["npm", "run", "dev"]

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```
npm install
npm run dev
```
```
open http://localhost:3000
```

508
litellm-js/spend-logs/package-lock.json generated Normal file
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generator client {
provider = "prisma-client-js"
}
datasource client {
provider = "postgresql"
url = env("DATABASE_URL")
}
model LiteLLM_SpendLogs {
request_id String @id
call_type String
api_key String @default("")
spend Float @default(0.0)
total_tokens Int @default(0)
prompt_tokens Int @default(0)
completion_tokens Int @default(0)
startTime DateTime
endTime DateTime
model String @default("")
api_base String @default("")
user String @default("")
metadata Json @default("{}")
cache_hit String @default("")
cache_key String @default("")
request_tags Json @default("[]")
team_id String?
end_user String?
}

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export type LiteLLM_IncrementSpend = {
key_transactions: Array<LiteLLM_IncrementObject>, // [{"key": spend},..]
user_transactions: Array<LiteLLM_IncrementObject>,
team_transactions: Array<LiteLLM_IncrementObject>,
spend_logs_transactions: Array<LiteLLM_SpendLogs>
}
export type LiteLLM_IncrementObject = {
key: string,
spend: number
}
export type LiteLLM_SpendLogs = {
request_id: string; // @id means it's a unique identifier
call_type: string;
api_key: string; // @default("") means it defaults to an empty string if not provided
spend: number; // Float in Prisma corresponds to number in TypeScript
total_tokens: number; // Int in Prisma corresponds to number in TypeScript
prompt_tokens: number;
completion_tokens: number;
startTime: Date; // DateTime in Prisma corresponds to Date in TypeScript
endTime: Date;
model: string; // @default("") means it defaults to an empty string if not provided
api_base: string;
user: string;
metadata: any; // Json type in Prisma is represented by any in TypeScript; could also use a more specific type if the structure of JSON is known
cache_hit: string;
cache_key: string;
request_tags: any; // Similarly, this could be an array or a more specific type depending on the expected structure
team_id?: string | null; // ? indicates it's optional and can be undefined, but could also be null if not provided
end_user?: string | null;
};

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import { serve } from '@hono/node-server'
import { Hono } from 'hono'
import { PrismaClient } from '@prisma/client'
import {LiteLLM_SpendLogs, LiteLLM_IncrementSpend, LiteLLM_IncrementObject} from './_types'
const app = new Hono()
const prisma = new PrismaClient()
// In-memory storage for logs
let spend_logs: LiteLLM_SpendLogs[] = [];
const key_logs: LiteLLM_IncrementObject[] = [];
const user_logs: LiteLLM_IncrementObject[] = [];
const transaction_logs: LiteLLM_IncrementObject[] = [];
app.get('/', (c) => {
return c.text('Hello Hono!')
})
const MIN_LOGS = 1; // Minimum number of logs needed to initiate a flush
const FLUSH_INTERVAL = 5000; // Time in ms to wait before trying to flush again
const BATCH_SIZE = 100; // Preferred size of each batch to write to the database
const MAX_LOGS_PER_INTERVAL = 1000; // Maximum number of logs to flush in a single interval
const flushLogsToDb = async () => {
if (spend_logs.length >= MIN_LOGS) {
// Limit the logs to process in this interval to MAX_LOGS_PER_INTERVAL or less
const logsToProcess = spend_logs.slice(0, MAX_LOGS_PER_INTERVAL);
for (let i = 0; i < logsToProcess.length; i += BATCH_SIZE) {
// Create subarray for current batch, ensuring it doesn't exceed the BATCH_SIZE
const batch = logsToProcess.slice(i, i + BATCH_SIZE);
// Convert datetime strings to Date objects
const batchWithDates = batch.map(entry => ({
...entry,
startTime: new Date(entry.startTime),
endTime: new Date(entry.endTime),
// Repeat for any other DateTime fields you may have
}));
await prisma.liteLLM_SpendLogs.createMany({
data: batchWithDates,
});
console.log(`Flushed ${batch.length} logs to the DB.`);
}
// Remove the processed logs from spend_logs
spend_logs = spend_logs.slice(logsToProcess.length);
console.log(`${logsToProcess.length} logs processed. Remaining in queue: ${spend_logs.length}`);
} else {
// This will ensure it doesn't falsely claim "No logs to flush." when it's merely below the MIN_LOGS threshold.
if(spend_logs.length > 0) {
console.log(`Accumulating logs. Currently at ${spend_logs.length}, waiting for at least ${MIN_LOGS}.`);
} else {
console.log("No logs to flush.");
}
}
};
// Setup interval for attempting to flush the logs
setInterval(flushLogsToDb, FLUSH_INTERVAL);
// Route to receive log messages
app.post('/spend/update', async (c) => {
const incomingLogs = await c.req.json<LiteLLM_SpendLogs[]>();
spend_logs.push(...incomingLogs);
console.log(`Received and stored ${incomingLogs.length} logs. Total logs in memory: ${spend_logs.length}`);
return c.json({ message: `Successfully stored ${incomingLogs.length} logs` });
});
const port = 3000
console.log(`Server is running on port ${port}`)
serve({
fetch: app.fetch,
port
})

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{
"compilerOptions": {
"target": "ESNext",
"module": "ESNext",
"moduleResolution": "Bundler",
"strict": true,
"types": [
"node"
],
"jsx": "react-jsx",
"jsxImportSource": "hono/jsx",
}
}