Explore GatsbyJS to build dynamic static sites and apps. Gain insights into starters, themes, plugins, GraphQL data queries, styling, custom 404s, SEO, and cloud deployment.

tarball.tar.gz

gatsby_lark

gatsby_lark-with-draft-post

gatsby_lark-setting-up-lark

gatsby_lark-building-our-components-editor-1

gatsby_lark-copy-me

gatsby build

gatsby_build_with_draft

Gatsby is a React-based and GraphQL-powered static site generator. It delivers websites with excellent loading speed. It can be used to build diverse websites, including websites with static data—like portfolios and informative websites—and rich and dynamic web apps like blogs, e-commerce sites, and more. Gatsby fetches data at build-time from different sources and compiles it into static HTML, which can then be deployed to your favorite web server. 

In this course, you’ll learn about the basics of Gatsby, including the use of starters, themes, plugins, layouts, and pages. You’ll then learn how to query data with GraphQL and fetch data from various data sources. You’ll also see how to style Gatsby projects and add features such as custom 404 pages and SEOs. In the end, you’ll see how to deploy Gatsby websites on different cloud hosting platforms. 

This course enables new and existing frontend web developers to become masters in GatsbyJS and use this tool to create blazingly fast static web projects.

How to Gatsby: The Complete Course

# Overview

We already know about the GraphiQL explorer and how to add data sources. Now, let’s look at how to write GraphQL queries when necessary to fetch data from these sources.

# Building a GraphQL query

A typical GraphQL query in Gatsby consists of two major parts: the `graphql` API in **line 1**, and the query string in the highlighted section below:

const query = graphql`
  query Socials {
    site {
      siteMetadata {
        socials {
          email
          github
          linkedin
          twitter
        }
      }
    }
  }
`

Let’s build out the query above from scratch while looking at the different components.

## Query block

The **query block** is the most important part of the GraphQL query. This block is a constructor for the kind and structure of data we want from the data layer. We already saw how to write and test out query strings using the GraphiQL explorer.

The query block always begins with the `query` keyword, followed by a unique query name (in the case above, the query was named `Socials`) and the structure of data to be fetched.

## The `graphql` API component

This component is imported into the file using:

```
import { graphql } from "gatsby"
```

Learn how to structure and build queries to fetch data in Gatsby.

Introduction to Course

Getting Started

Gatsby Basics

Data Sources

Fetching Data From Sources

Styling: Making Our Project Pretty

Features and Modifications

Deployment

Wrapping Up

Appendix

Writing GraphQL Queries

Overview

Building a GraphQL query