Lokalise Expert API Client

Utility library with the client for communication with Expert API

Service-to-service bearer headers

createOAuth2S2STokenProvider returns a TokenProvider that fetches and caches an OAuth2 client-credentials token. resolveBearerHeaders turns such a provider into the authorization header for an outgoing call to another service:

const tokenProvider = createOAuth2S2STokenProvider({ serverUrl, clientId, clientSecret })

const headers = {
  'content-type': 'application/json',
  ...(await resolveBearerHeaders(tokenProvider, requestContext)),
}

When the provider fails, a TokenProviderError is thrown before any request is sent. The request context is required so that a failure is always logged with the request it belongs to.