Gatsby source plugin for building websites using Firebase Firestore as a data source

1. Generate and download a Firebase Admin SDK private key by accessing the Firebase Project Console > Settings > Service Accounts

2. Rename and put the downloaded .json crendtial file somewhere in the GatsbyJS project (e.g. ./credentials.json)

3. Add gatsby-source-firestore as a dependency by running using npm or yarn:

   npm i gatsby-source-firestore
   # or
   yarn add gatsby-source-firestore

4. Configure settings at gatsby-config.js, for example:

   module.exports = {
      plugins: [
        {
          resolve: `gatsby-source-firestore`,
          options: {
            // credential or appConfig
            credential: require(`./credentials.json`),
            appConfig: {
              apiKey: "api-key",
              authDomain: "project-id.firebaseapp.com",
              databaseURL: "https://project-id.firebaseio.com",
              projectId: "project-id",
              storageBucket: "project-id.appspot.com",
              messagingSenderId: "sender-id",
              appID: "app-id",
   
            },
            types: [
              {
                type: `Book`,
                collection: `books`,
                map: doc => ({
                  title: doc.title,
                  isbn: doc.isbn,
                  author___NODE: doc.author.id,
                }),
              },
              {
                type: `Author`,
                collection: `authors`,
                map: doc => ({
                  name: doc.name,
                  country: doc.country,
                  books___NODE: doc.books.map(book => book.id),
                }),
              },
            ],
          },
        },
      ],
    }

   Note that you will need to have books and authors in Firestore matching this schema before Gatsby can query correctly, e.g books__NODE on author needs to be an array with books as a key of reference types to book documents.

5. Test GraphQL query:

   {
     allBooks {
       edges {
         node {
           title
           isbn
           author {
             name
           }
         }
       }
     }
   }

This project is created solely to suit our requirements, no maintenance or warranty are provided. Feel free to send in pull requests.

• ryanflorence/gatsby-source-firebase