hhy5277 / apollo-module

Nuxt.js module to use Vue-Apollo

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 [email protected] [email protected] [email protected]

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

Setup

Install apollo module:

npm install --save @nuxtjs/apollo
# if you are using *.gql or *.graphql files add graphql-tag to your dependencies
npm install --save graphql-tag

Add @nuxtjs/apollo to modules section of nuxt.config.js

- clientConfigs: `Object` Config passed to ApolloClient
  - default: `Object` // keep in mind that the object will be stringified!
  # alternative
  - default: `Path` // use this to have more control over the options
  - otherClient: `Object` (Optional)

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

  // Give apollo module options
  apollo: {
    tokenName: 'yourApolloTokenName', // optional, default: apollo-token
    tokenExpires: 10, // optional, default: 7 (days)
    includeNodeModules: true, // optional, default: false (this includes graphql-tag for node_modules folder)
    authenticationType: 'Basic', // optional, default: 'Bearer'
    // optional
    errorHandler (error) {
      console.log('%cError', 'background: red; color: white; padding: 2px 4px; border-radius: 3px; font-weight: bold;', error.message)
    },
    // required
    clientConfigs: {
      default: {
        // required  
        httpEndpoint: 'http://localhost:4000',
        // optional
        // 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', // optional
        // LocalStorage token
        tokenName: 'apollo-token', // optional
        // Enable Automatic Query persisting with Apollo Engine
        persisting: false, // Optional
        // Use websockets for everything (no HTTP)
        // You need to pass a `wsEndpoint` for this to work
        websocketsOnly: false // Optional
      },
      test: {
        httpEndpoint: 'http://localhost:5000',
        wsEndpoint: 'ws://localhost:5000',
        tokenName: 'apollo-token'
      },
      // alternative: user path to config which returns exact same config options
      test2: '~/plugins/my-alternative-apollo-config.js'
    }
  }
}

// plugins/my-alternative-apollo-config.js
export default function(context){
  return {
    httpEndpoint: 'http://localhost:4000/graphql-alt',
    getAuth:() => 'Bearer my-static-token' // use this method to overwrite functions
  }
}

Options

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.

Usage

Once the setup is completed you have a successfully enabled vue-apollo in your project. Checkout Official example and vue-apollo how to use vue-apollo inside your application code

Authentication

You have following methods for authentication available:

 // set your graphql-token
 this.$apolloHelpers.onLogin(token /* if not default you can pass in client as second argument, and you can set custom token expiration on third argument */)
 // unset your graphql-token
 this.$apolloHelpers.onLogout(/* if not default you can pass in client as 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

For permanent authorization tokens the setup just provide getAuth function for each of your endpoint configurations:

  apollo: {
    clientConfigs: {
      default: {
        httpEndpoint: 'https://graphql.datocms.com',
        getAuth: () => 'Bearer your_token_string'
      },
    }
  },

User login

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

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

getToken

// middleware/isAuth.js
  export default function ({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

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

asyncData/fetch method of page component

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

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

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

  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
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://github.com/apollographql/apollo-client/blob/master/Upgrade.md

Troubleshooting

Use of *.gql files

To use *gql|graphql files you need to add following dependency to your project:

  yarn add graphql-tag
  # alternative
  npm install graphql-tag

Proxies

CORS errors are most often resolved with proxies. If you see a Cross-Origin-Request error in your client side console look into setting up a proxy. Check out https://github.com/nuxt-community/proxy-module for quick and straight forward setup.

ctx.req.session - req is undefined

This is just a placeholder. You'll want to replace it with whatever storage mechanism you choose to store your token. Here is an example using local storage : vuejs/apollo#144

Contribute and wire up setup

Setup the required fields in .env file in root folder

// .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
    }
}

If your gql backend is prepared start running nuxt as follow

# npm install
# npm run dev