function* loadConfig(): Generator {
  try {
    const partnerSlug: string = getPartnerSlug(host)

    const partnerAuthAppKeyResponse: AxiosResponse<IVerificationResponsePayload> = (yield call(
      [api, 'post'],
      'v1/appkeys/find',
      {
        partnerSlug
      }
    )) as AxiosResponse<IVerificationResponsePayload>

    api.setAppKey(partnerAuthAppKeyResponse.data.authAppKey)

    const partnerConfigResponse: AxiosResponse<IVerificationResponsePayload> = (yield call(
      [api, 'get'],
      'v1/partners/ui/configuration'
    )) as AxiosResponse<IVerificationResponsePayload>

    const {
      data: { configuration: partnerConfiguration }
    } = partnerConfigResponse

    if (partnerSlug === genericShopPartnerKey) {
      modifyConfig(partnerConfiguration, getGenericPartnerConfig(host))
    } else {
      modifyConfig(partnerConfiguration)
    }

    const root: HTMLElement = document.documentElement
    for (const key of Object.keys(partnerConfiguration.theme)) {
      root.style.setProperty(key, partnerConfiguration.theme[key])
    }

    const errorsResponse: any = yield call(getErrorLabels)

    yield put(succeedPartnerConfigLoading(partnerConfiguration))
    yield put(succeedErrorLabelsLoading(errorsResponse.fields))
  } catch (error) {
    yield put(failPartnerConfigLoading(error))
    yield history.push(StaticRoute.failUrl)
  }
}