Apollo inside of NuxtJS

Nuxt.js module to use vue-apollo
uses internally same approach as vue-cli-plugin-apollo

Warning

This version requires Vue 2.6+ with serverPrefetch support. For example:

npm install --save vue@2.6.6 vue-template-compiler@2.6.6 vue-server-renderer@2.6.6

Sometime you may need to remove/rebuild package-lock.json/yarn.lock to make it work.

Setup

1- Install apollo module

npm install --save @nuxtjs/apollo

yarn add @nuxtjs/apollo

2- Load `@nuxtjs/apollo` module

// nuxt.config.js

export default {
  modules: [
    '@nuxtjs/apollo',
  ],

  apollo: {
    clientConfigs: {
      default: {
        httpEndpoint: 'http://localhost:4000',
      }
    }
  }
}

3- Loading `.gql` or `.graphql` files (optional)

Install graphql-tag

npm install --save graphql-tag

yarn add graphql-tag

⚠️ Typescript users

Add a gql.d.ts file in your sources folder with the following content:

declare module '*.gql' {
  import { DocumentNode } from 'graphql'

  const content: DocumentNode
  export default content
}

declare module '*.graphql' {
  import { DocumentNode } from 'graphql'

  const content: DocumentNode
  export default content
}

Usage

You have a successfully enabled vue-apollo in your project.

Checkout Official example and vue-apollo official documentation for how to use vue-apollo inside your application

Advanced configuration

{
  // Add apollo module
  modules: ['@nuxtjs/apollo'],

  apollo: {
    // Sets up the apollo client endpoints
    clientConfigs: {
      // recommended: use a file to declare the client configuration (see below for example)
      default: '~/plugins/my-alternative-apollo-config.js',

      // you can setup multiple clients with arbitrary names
      alternativeClient: {
        // required
        httpEndpoint: 'http://localhost:4000',

        // override HTTP endpoint in browser only
        browserHttpEndpoint: '/graphql',

        // See https://www.apollographql.com/docs/link/links/http.html#options
        httpLinkOptions: {
          credentials: 'same-origin'
        },

        // You can use `wss` for secure connection (recommended in production)
        // Use `null` to disable subscriptions
        wsEndpoint: 'ws://localhost:4000',

        // LocalStorage token
        tokenName: 'apollo-token',

        // Enable Automatic Query persisting with Apollo Engine
        persisting: false,

        // Use websockets for everything (no HTTP)
        // You need to pass a `wsEndpoint` for this to work
        websocketsOnly: false
      },
    },
    
    /**
     * default 'apollo' definition
     */
    defaultOptions: {
      // See 'apollo' definition
      // For example: default query options
      $query: {
        loadingKey: 'loading',
        fetchPolicy: 'cache-and-network',
      },
    },
    
    // setup a global query loader observer (see below for example)
    watchLoading: '~/plugins/apollo-watch-loading-handler.js',
    
    // setup a global error handler (see below for example)
    errorHandler: '~/plugins/apollo-error-handler.js',

    // Sets the authentication type for any authorized request.
    authenticationType: 'Bearer', 

    // Token name for the cookie which will be set in case of authentication
    tokenName: 'apollo-token',

    // [deprecated] Enable the graphql-tag/loader to parse *.gql/*.graphql files
    includeNodeModules: true,

    // Cookie parameters used to store authentication token
    cookieAttributes: {
      /**
        * Define when the cookie will be removed. Value can be a Number
        * which will be interpreted as days from time of creation or a
        * Date instance. If omitted, the cookie becomes a session cookie.
        */
      expires: 7,

      /**
        * Define the path where the cookie is available. Defaults to '/'
        */
      path: '/',

      /**
        * Define the domain where the cookie is available. Defaults to
        * the domain of the page where the cookie was created.
        */
      domain: 'example.com',

      /**
        * A Boolean indicating if the cookie transmission requires a
        * secure protocol (https). Defaults to false.
        */
      secure: false,
    },
  }
}

Apollo `clientOptions` using file configuration

⚠️ In case you need to declare functions (like getAuth or inMemoryCacheOptions.fragmentMatcher) inside apollo configuration, you MUST define your clientOptions using an external file

// ~/plugins/my-alternative-apollo-config.js

export default (context) => {
  return {
    httpEndpoint: 'http://localhost:4000/graphql-alt',

    /*
     * For permanent authentication provide `getAuth` function.
     * The string returned will be used in all requests as authorization header
     */
    getAuth: () => 'Bearer my-static-token',
  }
}

`watchLoading` example

// ~/plugins/apollo-watch-loading-handler.js

export default (isLoading, countModifier, nuxtContext) => {
  loading += countModifier
  console.log('Global loading', loading, countModifier)
}

`errorHandler` example

// ~/plugins/apollo-error-handler.js

export default ({ graphQLErrors, networkError, operation, forward }, nuxtContext) => {
  console.log('Global error handler')
  console.log(graphQLErrors, networkError, operation, forward)
}

You can either (in a simple setup) just add an object as described above. If you need to overwrite cache or the default getAuth() function then use a path to your config file which returns the client config options.

clientConfigs `Option`: required

Sets up the apollo client endpoints. All available options for each endpoint you find here

Check out official vue-apollo-cli where possible usecases are presented.

clientConfigs.default `Object`: required

clientConfigs. `Object|Path`: optional

tokenName `String`: optional, default: 'apollo-token'

Token name for the cookie which will be set in case of authentication. You can also provide an option tokenName in each of your clientConfigs to overwrite the default. When each request is made, the value of whatever is in this cooke will be sent in an "Authorization" HTTP header as specified by authenticationType below.

authenticationType `String`: optional, default: 'Bearer'

Sets the authentication type for any authorized request. Modify this if the authentication type your GraphQL API requires is not the default Bearer. All requests will then be sent with the appropriate HTTP header in the format: "Authorization: " (Eg. Authorization: Bearer abc123).

If your backend requires an Authorization header in the format "Authorization: ", without any prefix, then you should set this value to an empty string.

includeNodeModules `Boolean`: optional, default: false

In case you use *.gql files inside of node_module folder you can enable the graphql-tag/loader to parse the files for you.

Authentication

You have following methods for authentication available:

 // set your graphql-token
 this.$apolloHelpers.onLogin(token /* if not default you can pass in client as second argument, you can set custom cookies attributes object as the third argument, and you can skip reset store as the fourth argument */)
 // unset your graphql-token
 this.$apolloHelpers.onLogout(/* if not default you can pass in client as first argument, and you can skip reset store as the second argument */)
 // get your current token (we persist token in a cookie)
 this.$apolloHelpers.getToken(/* you can provide named tokenName if not 'apollo-token' */)

Check out the full example

// ~/components/my-component.js

export default {
  methods: {
    async onSubmit () {
      const credentials = this.credentials
      try {
          const res = await this.$apollo.mutate({
              mutation: authenticateUserGql,
              variables: credentials
          }).then(({data}) => data && data.authenticateUser)
          await this.$apolloHelpers.onLogin(res.token)
      } catch (e) {
          console.error(e)
      }
    },
  }
}

User logout

// ~/components/my-component.js

export default {
  methods: {
    async onLogout () {
      await this.$apolloHelpers.onLogout()
    },
  }
}

getToken

// ~/middleware/isAuth.js

export default ({app, error}) => {
  const hasToken = !!app.$apolloHelpers.getToken()
  if (!hasToken) {
    error({
      errorCode:503, 
      message:'You are not allowed to see this'
    })
  }
}

Examples to access the defaultClient of your apolloProvider

Vuex actions

// ~/store/my-store.js

export default {
  actions: {
    foo (store, payload) {
      let client = this.app.apolloProvider.defaultClient
    }
  }
}

asyncData/fetch method of page component

// ~/components/my-component.js

export default {
  asyncData (context) {
    let client = context.app.apolloProvider.defaultClient
  }
}

nuxtServerInit

export default {
  nuxtServerInit (store, context) {
    let client = context.app.apolloProvider.defaultClient
  }
}

access client or call mutations and queries of any method inside of component

// ~/components/my-component.js

export default {
  methods: {
    foo () {
      // receive the associated Apollo client 
      const client = this.$apollo.getClient()

      // most likely you would call mutations like following:
      this.$apollo.mutate({mutation, variables})
      
      // but you could also call queries like this:
      this.$apollo.query({query, variables})
        .then(({ data }) => {
          // do what you want with data
        })
    }
  }
}

Once you get the client, you can access its methods and properties. See API Reference

Smart queries on any component

// nuxt.config.js

export default {
  apollo: {
    foo: {
      query: fooGql,
      variables () {
        return {
          myVar: this.myVar
        }
      }
    }
  }
}

See vue-apollo documentation for more information on smart queries

Add GQL file recognition on node_modules

// nuxt.config.js

export default {
  apollo: {
    clientConfigs: {
      default: '~/apollo/client-configs/default.js'
    },
    includeNodeModules: true
  }
}

Upgrade

Upgrade Guide apollo-module v3 => v4

Version 4 of this module leaves you with zero configuration. This means we use the best possible approach available from vue-cli-plugin-apollo and the same configuration behaviour. This means you don't need to wire up your own configuration, simply pass

Edit your configuration as following:

// nuxt.config.js

export default {
  apollo: {
    clientConfigs: {
      default:{
        httpEndpoint: YOUR_ENDPOINT,
        wsEndpoint: YOUR_WS_ENDPOINT
      }
    }
  }
}

Upgrade Guide apollo-client v1 => v2

Version 3 of this module is using apollo-client 2.x. You need to make sure to update all your middle/afterware according to the upgrade guide of apollo-client. Check this source for a reference: https://www.apollographql.com/docs/apollo-server/migration-two-dot/

# cat .env
HTTP_ENDPOINT=https://your-endpoint
WS_ENDPOINT=wss://your-endpoint

In index.vue the login process requires that the gql endpoint enables a mutation which returns a valid token:

mutation authenticateUser($email:String!,$password:String!){
    authenticateUser(email: $email, password: $password) {
        token
        id
    }
}