Github + Netlify + Gatsby = ❤️

If you build a lot of websites and you always use the same repository as a base and get to set up Netlify, how about using a script that just asks for the name of your new repository and gets the new website up and running?

I will go through the process of building this script and the issues encountered.

Prerequisites

You will need to have

From Github

A personal access token
At least a template repository (public or private)

From Netlify

A personal access token

Github

First, we want to create our new repository in Github from a template repository, well their API will do that for you

  const repoInfo = await octokit.repos.createUsingTemplate({
    template_owner: config.githubOrganization,
    template_repo: githubTemplateRepo,
    owner: config.githubOrganization,
    name: projectName,
    include_all_branches: false,
    private: true
  })

That’s it, now we have a new repository in Github from our template repository.

Netlify

The Github repository is set up, now we create a website on Netlify using their API too:

return client.createSite({
  body: {
    name: domain,
    repo: {
      cmd: 'gatsby build',
      dir: 'public',
      id: githubRepoId,
      provider: 'github',
      repo_type: 'git',
      repo_url: `https://github.com/${config.githubOrganization}/${projectName}`,
      repo_branch: config.githubBranch,
      repo_path: `${config.githubOrganization}/${projectName}`,
      deploy_key_id: deployKey
    }
  }
})

Well, this is ok but it won’t be able to build the website because it may not have enough permissions.

Fix the permissions

To fix this, We are going to link the Github repository to Netlify before that we create it in Netlify.

So before we create the website in Netlify we need to get a few things:

Github repository id
Netlify deploy key and its id

To do this, we need to get the Github repository id, well we are in luck, when we created the repository, using the Github API, it returns the id.

Now the Netlify deploy key and its id, for this we will use the Netlify API:

return client.createDeployKey()

After we need to send the deploy key to Github, using the Github API:

octokit.repos.createDeployKey({
  owner: `[githubOrganizationOrUserId]`,
  repo: `[newProjectName]`,
  key: netlifyDeployPublicKey
})

We have basically linked Github and Netlify. Now we can create our website on Netlify just by calling the same function as before but by adding the Github repository id and Netlify deploy key:

return client.createSite({
   body: {
     name: `[netlifySubdomain]`,
     repo: {
       id: githubRepoId,
       provider: 'github',
       repo_type: 'git',
       repo_url: `https://github.com/${githubOrganizationOrUserid}/${newProjectName}`,
       repo_branch: ‘main’,
       repo_path: `${githubOrganizationOrUserid}/${newProjectName}`,
       deploy_key_id: deployKey
     }
   }
 })

You have, now, a website up and running in Netlify with a subdomain that you have chosen.

Gatsby

If you are using Gatsby to build your website in Netlify you need to add the command of how to build it and its path.

To do this, you will need to modify the Netlify create site:

return client.createSite({
   body: {
     name: `[netlifySubdomain]`,
     repo: {
       cmd: 'gatsby build',
       dir: 'public',
       id: `[netlifySubdomain]`,
       provider: 'github',
       repo_type: 'git',
       repo_url: `https://github.com/${githubOrganizationOrUserid}/${newProjectName}`,
       repo_branch: ‘main’,
       repo_path: `${githubOrganizationOrUserid}/${newProjectName}`,
       deploy_key_id: deployKey
     }
   }
 })