# All files / client stats.js

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     import { caller } from 'postmsg-rpc'
    import callbackify from 'callbackify'
    import { post } from 'prepost'
    import defer from 'pull-defer'
    import PMS from 'pull-postmsg-stream'
    import toStream from 'pull-stream-to-stream'
    import { isBigJson, bigFromJson } from '../serialization/big'

    export default function (opts) {
      const api = {
        bw: callbackify.variadic(
          post(
            caller('ipfs.stats.bw', opts),
            (stats) => {
              if (stats) {
                if (isBigJson(stats.totalIn)) {
                  stats.totalIn = bigFromJson(stats.totalIn)
                }

                if (isBigJson(stats.totalOut)) {
                  stats.totalOut = bigFromJson(stats.totalOut)
                }

                if (isBigJson(stats.rateIn)) {
                  stats.rateIn = bigFromJson(stats.rateIn)
                }

                if (isBigJson(stats.rateOut)) {
                  stats.rateOut = bigFromJson(stats.rateOut)
                }
              }

              return stats
            }
          )
        ),
        bwReadableStream () {
          return toStream.source(api.bwPullStream(...arguments))
        },
        bwPullStream: (() => {
          const bwPullStream = post(
            caller('ipfs.stats.bwPullStream', opts),
            (res) => PMS.source(res.name, Object.assign({}, opts, {
              post (res) {
                const stats = res.data

                if (stats) {
                  if (isBigJson(stats.totalIn)) {
                    stats.totalIn = bigFromJson(stats.totalIn)
                  }

                  if (isBigJson(stats.totalOut)) {
                    stats.totalOut = bigFromJson(stats.totalOut)
                  }

                  if (isBigJson(stats.rateIn)) {
                    stats.rateIn = bigFromJson(stats.rateIn)
                  }

                  if (isBigJson(stats.rateOut)) {
                    stats.rateOut = bigFromJson(stats.rateOut)
                  }
                }

                return res
              }
            }))
          )

          return (...args) => {
            const deferred = defer.source()

            bwPullStream(...args)
              .then((res) => deferred.resolve(res))
              .catch((err) => deferred.abort(err))

            return deferred
          }
        })()
      }

      return api
    }