fetchGraphQLSchema.js

require("dotenv").config()

const fs = require("fs")
const gradient = require("gradient-string")
const path = require("path")
const ProgressBar = require("progress")
const { fetch } = require("cross-undici-fetch")

const {
  buildClientSchema,
  getIntrospectionQuery,
  printSchema,
} = require("graphql")

const supagradient = gradient(["#00CB8A", "#78E0B8"])

function fetchGraphQLSchema(url, options) {
  options = options || {} // eslint-disable-line no-param-reassign

  const bar = new ProgressBar("🔦  Introspecting schema [:bar]", 24)

  const id = setInterval(function () {
    bar.tick()
    if (bar.complete) {
      clearInterval(id)
    }
  }, 250)

  return fetch(url, {
    method: "POST",
    headers: {
      Accept: "application/json",
      "Content-Type": "application/json",
      apiKey: process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY,
    },
    body: JSON.stringify({
      query: getIntrospectionQuery(),
    }),
  })
    .then((res) => res.json())
    .then((schemaJSON) => {
      if (options.readable) {
        return printSchema(buildClientSchema(schemaJSON.data))
      }

      bar.complete()
      return JSON.stringify(schemaJSON, null, 2)
    })
}

const filePath = path.join(__dirname, "../graphql/schema/", "schema.graphql")

console.log(
  supagradient(
    `🗞   Fetching GraphQL Schema from ${process.env.SUPABASE_PROJECT_REF} ...`
  )
)

fetchGraphQLSchema(
  `https://${process.env.NEXT_PUBLIC_SUPABASE_PROJECT_REF}.supabase.co/graphql/v1`,
  {
    readable: true,
  }
).then((schema) => {
  fs.writeFileSync(filePath, schema, "utf-8")
  console.log(supagradient(`✨  Saved to ${filePath}`))
  console.log('💡  Be sure to run "yarn run codegen" to generate latest types.')
})