Nuxt/Apollo/Wordpress/GraphQL/Docker - Apollo Fetch to GraphQL Endpoint Failing - wordpress

Question

I'm trying to set up a Headless Wordpress project with Nuxt 3 and Apollo. For some reason, apollo's fetch is failing when trying to hit the Wordpress GraphQL endpoint. My file structure is as follows:
frontend
-.nuxt
-assets
-node_modules
-.gitignore
-.npmrc
-app.vue
-nuxt.config.ts
-package-lock.json
-package.json
-README.md
-tsconfig.json
wp-content
-plugins
-themes
-upgrade
-uploads
-index.php
docker-compose.yml
My docker-compose:
version: '3.1'
services:
wordpress:
image: wordpress:latest
ports:
- "80:80"
volumes:
- ./wp-content:/var/www/html/wp-content:delegated
environment:
WORDPRESS_DB_HOST: db
WORDPRESS_DB_USER: wordpress
WORDPRESS_DB_PASSWORD: wordpress
WORDPRESS_DB_NAME: wordpress
WORDPRESS_DEBUG: 1
depends_on:
- db
db:
image: mysql:5.7
restart: always
environment:
MYSQL_ROOT_PASSWORD: wordpress
MYSQL_DATABASE: wordpress
MYSQL_USER: wordpress
MYSQL_PASSWORD: wordpress
volumes:
- db-data:/var/lib/mysql:delegated
frontend:
container_name: frontend
command: -c "npm run dev"
image: node:latest
working_dir: /var/www/html/app
entrypoint: /bin/bash
ports:
- "3000:3000"
volumes:
- ./frontend:/var/www/html/app:delegated
tty: true
volumes:
db-data:
Nuxt config:
// https://nuxt.com/docs/api/configuration/nuxt-config
export default defineNuxtConfig({
css: ['#/assets/styles/style.scss'],
modules: ['#nuxtjs/apollo'],
apollo: {
clients: {
default: {
httpEndpoint: 'http://localhost/graphql',
}
}
}
})
And finally, app.vue
<template>
<div class="app">
<p>{{ data?.posts }}</p>
</div>
</template>
<script setup>
const query = gql`
query NewQuery {
posts {
edges {
node {
title(format: RENDERED)
id
content
}
}
}
}
`
const { data, error} = await useAsyncQuery(query)
console.log(error)
</script>
The only error message I'm getting from apollo is "Fetch failed", no more info than that. I have WPGraphQL installed on the Wordpress instance and I can hit the graphql endpoint at localhost/graphql in the browser. I have an inkling that I'm messing up something with the networking or how the two ports are relating to one another, but I'm not sure. Any thoughts would be much appreciated. Thanks!