commerce/framework/shopify/fetcher.ts

import { FetcherError } from '@commerce/utils/errors'
import type { Fetcher } from '@commerce/utils/types'

async function getText(res: Response) {
  try {
    return (await res.text()) || res.statusText
  } catch (error) {
    return res.statusText
  }
}

async function getError(res: Response) {
  if (res.headers.get('Content-Type')?.includes('application/json')) {
    const data = await res.json()
    return new FetcherError({ errors: data.errors, status: res.status })
  }
  return new FetcherError({ message: await getText(res), status: res.status })
}

const fetcher: Fetcher = async ({
  url,
  query,
  method = 'POST',
  variables,
  body: bodyObj,
}) => {
  // const config = getConfig()
  // url = `https://${process.env.SHOPIFY_STORE_DOMAIN}/api/2021-01/graphql.json`

  const hasBody = Boolean(variables || bodyObj)
  const body = hasBody
    ? JSON.stringify(variables ? { query, variables } : bodyObj)
    : undefined
  const headers = hasBody
    ? {
        'X-Shopify-Storefront-Access-Token': config.apiToken,
        'Content-Type': 'application/json',
      }
    : undefined

  const res = await fetch(url!, { method, body, headers })

  if (res.ok) {
    const { data } = await res.json()
    return data
  }

  throw await getError(res)
}

export default fetcher