Sketch of an implementation for a possible apollo-link-offline module with similar behavior to apollo-offline.

offlineLink.js

import { ApolloLink } from 'apollo-link'
import QueueLink from 'apollo-link-queue'
import { RetryLink } from 'apollo-link-retry'
import { NetInfo } from 'react-native'
import Observable from 'zen-observable'

export function createOfflineLink({ cache }) {
  const retryLink = new RetryLink({
    attempts: {
      max: Infinity,
      retryIf(error, operation) {
        const cachedResponse = cache.readQuery({
          query: operation.query,
          variables: operation.variables,
        })
        return !!error && cachedResponse == null
      },
    },
  })

  const queueLink = new QueueLink()

  NetInfo.addEventListener('connectionChange', event => {
    if (isOnline(event.type)) {
      queueLink.open()
    } else {
      queueLink.close()
    }
  })

  function isOnline(connectionType) {
    return connectionType !== 'none' && connectionType !== 'unknown'
  }

  const optimisticFetchLink = new ApolloLink((operation, forward) => {
    return new Observable(observer => {
      forward(operation).subscribe({
        // Don't do anything with normal responses.
        next: response => observer.next(response),
        error: error => {
          if (error.message === 'Network request failed') {
            // The response may already be persisted in the cache - if so, there
            // is no need to throw. Instead, just resolve with the cached data.
            const cachedResponse = cache.readQuery({
              query: operation.query,
              variables: operation.variables,
            })
            if (cachedResponse != null) {
              observer.next({ data: cachedResponse })
            } else {
              observer.error(error)
            }
          } else {
            // Don't do anything with any other error.
            observer.error(error)
          }
        },
      })
    })
  })

  return ApolloLink.from([optimisticFetchLink, retryLink, queueLink])
}