Nuxt/examples/vue-apollo/nuxt.config.js

export default {
  modules: ['@nuxtjs/apollo'],
  apollo: {
    clientConfigs: {
      default: {
        httpEndpoint: 'https://api.graph.cool/simple/v1/cj1dqiyvqqnmj0113yuqamkuu'
      }
    }
  }
}