Notification SDK

Install

npm i @jup-ag/notification-sdk

Subscribing to message updates

import { CreateNotificationClient, Status } from "@jup-ag/notification-sdk";

const workerEndpoint = "http://127.0.0.1:8787"

function handler(key: string, status: Status, code: string, description: string) {
  console.log(`Got new message for ${key}; Status: ${status}; Code: ${code}; Description: ${description}`)
}

function main() {
  const notificationClient = CreateNotificationClient(workerEndpoint)
  const key = "SomePositionRequestPubKeyBase58"
  notificationClient.onUpdate(key, handler)
}

Set new message

import { CreateNotificationClient, Status, Message } from "@jup-ag/notification-sdk";

const workerEndpoint = "http://127.0.0.1:8787"

async function main() {
  const notificationClient = CreateNotificationClient(workerEndpoint)
  const key = "SomePositionRequestPubKeyBase58"

  const message: Message = {
    status: Status.Error,
    code: "6001",
    description: "Something went wrong"
  }

  const ok = await notificationClient.updateMessage(key, message)

  if (!ok) {
    throw new Error("Failed to update status")
  }

  const res = await notificationClient.getMessage(key)
  console.log({ res })
}

About Message

Message is a JSON serializable object containing 3 properties

• status: status is an enum with 4 possibilities -> Pending, Error, Success, Failed
• code: this can be an error code as a string ie '6001' or 'MAX_ATTEMPTS'
• description: this can be a user friendlier description of the error code

About Status

While you can use it very flexibly, this is how we intend to use it:

• Status.Pending -> indicate that it is still in process
• Status.Error -> error messages but might not indicate finality aka retries might be on the way
• Status.Failed -> this indicate finality. no more retries
• Status.Success -> everything is good