node

OpenMeter Node SDK

Install

npm install --save @openmeter/sdk

Example

import { OpenMeter, type Event } from '@openmeter/sdk'

const openmeter = new OpenMeter({ baseUrl: 'http://localhost:8888' })

// Ingesting an event
const event: Event = {
  specversion: '1.0',
  id: 'id-1',
  source: 'my-app',
  type: 'my-type',
  subject: 'my-awesome-user-id',
  time: new Date(),
  data: {
    api_calls: 1,
  },
}
await openmeter.events.ingest(event)

// Fetching a meter
const meter = await openmeter.meters.get('m1')

API

Events

ingest

import { type Event } from '@openmeter/sdk'

const event: Event = {
  specversion: '1.0',
  id: 'id-1',
  source: 'my-app',
  type: 'my-type',
  subject: 'my-awesome-user-id',
  time: new Date(),
  data: {
    api_calls: 1,
  },
}
await openmeter.events.ingest(event)

batch ingest

await openmeter.events.ingest([event1, event2, event3])

list

Retrieve latest raw events. Useful for debugging.

const events = await openmeter.events.list()

Meters

list

List meters.

const meters = await openmeter.meters.list()

get

Get one meter by slug.

const meter = await openmeter.meters.get('m1')

query

Query meter values.

import { WindowSize } from '@openmeter/sdk'

const values = await openmeter.meters.query('my-meter-slug', {
  subject: ['user-1'],
  groupBy: ['method', 'path'],
  from: new Date('2021-01-01'),
  to: new Date('2021-01-02'),
  windowSize: WindowSize.HOUR,
})

meter subjects

List meter subjects.

const subjects = await openmeter.meters.subjects('my-meter-slug')

Portal

createToken

Create subject-specific tokens. Useful to build consumer dashboards.

const token = await openmeter.portal.createToken({ subject: 'customer-1' })

invalidateTokens

Invalidate portal tokens for all or specific subjects.

await openmeter.portal.invalidateTokens()

Subject

Subject mappings. Like display name and metadata.

upsert

Upsert subjects.

const subjects = await openmeter.subjects.upsert([
  {
    key: 'customer-1',
    displayName: 'ACME',
  },
])

list

List subjects.

const subjects = await openmeter.subjects.list()

get

Get subject by key.

const subjects = await openmeter.subjects.get('customer-1')

delete

Delete subject by key. It doesn't delete corresponding usage.

await openmeter.subjects.delete('customer-1')

createEntitlement

Create entitlement for a subject. Entitlements allow you to manage subject feature access, balances, and usage limits.

// Issue 10,000,000 tokens every month
const entitlement = await openmeter.subjects.createEntitlement('customer-1', {
  type: 'metered',
  featureKey: 'ai_tokens',
  usagePeriod: {
    interval: 'MONTH',
  },
  issueAfterReset: 10000000,
})

listEntitlements

List subject entitlements.

const entitlement = await openmeter.subjects.listEntitlements('customer-1')

getEntitlement

Get a subject entitlement by ID by Feature ID or by Feature Key.

const entitlement = await openmeter.subjects.getEntitlement(
  'customer-1',
  'ai_tokens'
)

deleteEntitlement

Delete a subject entitlement by ID by Feature ID or by Feature Key.

await openmeter.subjects.deleteEntitlement('customer-1', 'ai_tokens')

getEntitlementValue

Get entitlement value by ID by Feature ID or by Feature Key.

const value = await openmeter.subjects.getEntitlementValue(
  'customer-1',
  'ai_tokens'
)

getEntitlementHistory

Get entitlement history by ID by Feature ID or by Feature Key

const entitlement = await openmeter.subjects.getEntitlementHistory(
  'customer-1',
  'ai_tokens'
)

resetEntitlementUsage

Reset the entitlement usage and start a new period. Eligible grants will be rolled over.

const entitlement = await openmeter.subjects.resetEntitlementUsage(
  'customer-1',
  {
    retainAnchor: true,
  }
)

createEntitlementGrant

Create a grant for an entitlement.

const grant = await openmeter.subjects.createEntitlementGrant(
  'customer-1',
  'ai_tokens',
  {
    amount: 100,
    priority: 1,
    effectiveAt: '2023-01-01T00:00:00Z',
    expiration: {
      duration: 'HOUR',
      count: 12,
    },
    minRolloverAmount: 100,
    maxRolloverAmount: 100,
    recurrence: {
      interval: 'MONTH',
      anchor: '2024-06-28T18:29:44.867Z',
    },
  }
)

listEntitlementGrants

List entitlement grants

const entitlement = await openmeter.subjects.listEntitlementGrants('customer-1', 'ai_tokens)

Features

Features are the building blocks of your entitlements, part of your product offering.

create

Upsert subjects.

const feature = await openmeter.features.create({
  key: 'ai_tokens',
  name: 'AI Tokens',
  // optional
  meterSlug: 'tokens_total',
})

list

List features.

const features = await openmeter.features.list()

get

Get feature by key.

const feature = await openmeter.features.get('ai_tokens')

delete

Delete feature by key.

await openmeter.features.delete('ai_tokens')

Grants

Entitlement grants allow to issue of additional one-time or recurring allowances on a subject's entitlement.

list

List grants.

const grants = await openmeter.grants.list()