gatsby-source-apiserver

A gatsby source plugin for pulling in third party api data.

Features

• Pulls data from configured api url
• Uses custom name to allow for multiple instances of plugin
• Option to download the json data to a configurable path
• Option to only download the json data, and skip inserting it into GraphQL
• Supports simple authentication through axios

Install

npm install --save gatsby-source-apiserver

Migrate for Gatsby-v2 release:

Please checkout version 2.0.0 or next

npm install --save gatsby-source-apiserver@next

Change logs

• 2.1.1:
  • Support multiple entities for multiple api servers, pls take a look at attribute entitiesArray
  • Add request params
  • Support Auth0
• 2.0.0: Support gatsby-v2

How to use

// Place configuration options in your gatsby-config.js

plugins: [
  {
    resolve: 'gatsby-source-apiserver',
    options: {
      // Type prefix of entities from server
      typePrefix: 'internal__',

      // The url, this should be the endpoint you are attempting to pull data from
      url: `http://yourapi.com/api/v1/posts`,

      method: 'post',

      headers: {
        'Content-Type': 'application/json'
      },
  
      // Request body
      data: {

      },

      // Name of the data to be downloaded.  Will show in graphQL or be saved to a file
      // using this name. i.e. posts.json
      name: `posts`,

      // Nested level of entities in response object, example: `data.posts`
      entityLevel: `data.posts`,

      // Define schemaType to normalize blank values
      // example:
      // const postType = {
      //   id: 1,
      //   name: 'String',
      //   published: true,
      //   object: {a: 1, b: '2', c: false},
      //   array: [{a: 1, b: '2', c: false}]
      // }
      schemaType: postType,

      // Request parameters
      // Only available from version 2.1.0
      params: {
        per_page: 1
      },

      // Simple authentication, optional
      auth: {
        username: 'myusername',
        password: 'supersecretpassword1234'
      },

      // Advanced authentication for Auth0
      // Only available from version 2.1.0
      auth0Config: {
        method: 'POST',
        url: 'https://MyAuth0Domain/oauth/token',
        headers: { 'content-type': 'application/json' },
        data: { 
          grant_type: 'password',
          username: 'myusername',
          password: 'PassAWordHere',
          audience: 'Auth0APIAudience',
          scope: 'openid',
          client_id: 'AUTH0_CLIENT_ID',
          client_secret: 'AUTH0_SECRET'
        },
        json: true
      },

      // Optional payload key name if your api returns your payload in a different key
      // Default will use the full response from the http request of the url
      payloadKey: `body`,

      // Optionally save the JSON data to a file locally
      // Default is false
      localSave: false,

      //  Required folder path where the data should be saved if using localSave option
      //  This folder must already exist
      path: `${__dirname}/src/data/auth/`,

      // Optionally include some output when building
      // Default is false
      verboseOutput: true, // For debugging purposes

      // Optionally skip creating nodes in graphQL.  Use this if you only want
      // The data to be saved locally
      // Default is false
      skipCreateNode: false, // skip import to graphQL, only use if localSave is all you want
      
      // Pass an array containing any number of the entity configuration properties (except verbose, auth0Config),
      // any not specified are defaulted to the general properties that are specified 
      // Only available from version 2.1.0
      entitiesArray: [{
        url: `http://yourapi.com/api/v1/posts`,
        method: 'post',
        headers: {
        'Content-Type': 'application/json'
        },
        name: `posts`,
      }]
    }
  }
];

How to query

Data will be available at the following points in GraphQL.

all<TypePrefix><Name> or <TypePrefix><Name> where TypePrefix and Name is replaced by the name entered in the configuration options.

Dummy Node

This plugin will automatically add a dummy node to initialize Gatsby Graphql Schema, in order to avoid GraphQL errors when some fields are missing.

The dummy node will have id: 'dummy' and you will probably want to exclude it from createPage():

<ul>
{data.allPosts.edges.filter(({node}) => node.id !== 'dummy').map(({ node }, index) => (
   <li key={index}>{node.name}</li>
))}
</ul>

or filter it out from your GraphQL query:

query {
    internalAllPosts(filter: {id: {ne: "dummy"}}) {
        // ...
    }
}

Note: make sure you pass option schemaType to make dummy node works.

Conflicting keys

Some of the returned keys may be transformed if they conflict with restricted keys used for GraphQL such as the following ['id', 'children', 'parent', 'fields', 'internal']

These conflicting keys will now show up as alternative_id