feat: add context to query (#549)

* feat: add context to query

Add Context to useAsyncQuery and useLazyAsynQuery.
Extended prep function to extract context and forward it to apollo client.
This allows context configuration per query, e.g. custom headers.

* Apply suggestions from code review

Co-authored-by: Daniel Roe <daniel@roe.dev>

---------

Co-authored-by: Daniel Roe <daniel@roe.dev>

src/runtime/composables.ts

@@ -1,6 +1,6 @@
 import { hash } from 'ohash'
 import { print } from 'graphql'
-import type { OperationVariables, QueryOptions } from '@apollo/client'
+import type { OperationVariables, QueryOptions, DefaultContext } from '@apollo/client'
 import type { AsyncData } from 'nuxt/dist/app/composables'
 import type { NuxtAppApollo } from '../types'
 import { ref, useCookie, useNuxtApp, useAsyncData } from '#imports'
@@ -18,7 +18,7 @@ type TAsyncQuery<T> = {
 
 export function useAsyncQuery <T> (opts: TAsyncQuery<T>): AsyncData<T, Error>
 export function useAsyncQuery <T> (query: TQuery<T>, clientId?: string): AsyncData<T, Error>
-export function useAsyncQuery <T> (query: TQuery<T>, variables?: TVariables<T>, clientId?: string): AsyncData<T, Error>
+export function useAsyncQuery <T> (query: TQuery<T>, variables?: TVariables<T>, clientId?: string, context?: DefaultContext): AsyncData<T, Error>
 
 export function useAsyncQuery <T> (...args: any) {
   const { key, fn } = prep(...args)
@@ -27,7 +27,7 @@ export function useAsyncQuery <T> (...args: any) {
 
 export function useLazyAsyncQuery <T> (opts: TAsyncQuery<T>): AsyncData<T, Error>
 export function useLazyAsyncQuery <T> (query: TQuery<T>, clientId?: string): AsyncData<T, Error>
-export function useLazyAsyncQuery <T> (query: TQuery<T>, variables?: TVariables<T>, clientId?: string): AsyncData<T, Error>
+export function useLazyAsyncQuery <T> (query: TQuery<T>, variables?: TVariables<T>, clientId?: string, context?: DefaultContext): AsyncData<T, Error>
 
 export function useLazyAsyncQuery <T> (...args: any) {
   const { key, fn } = prep(...args)
@@ -40,6 +40,7 @@ const prep = (...args: any) => {
   const query = args?.[0]?.query || args?.[0]
   const cache = args?.[0]?.cache ?? true
   const variables = args?.[0]?.variables || (typeof args?.[1] !== 'string' && args?.[1]) || undefined
+  const context = args?.[0]?.context
   let clientId = args?.[0]?.clientId || (typeof args?.[1] === 'string' && args?.[1]) || undefined
 
   if (!clientId || !clients?.[clientId]) {
@@ -48,7 +49,7 @@ const prep = (...args: any) => {
 
   const key = args?.[0]?.key || hash({ query: print(query), variables, clientId })
 
-  const fn = () => clients![clientId]?.query({ query, variables, fetchPolicy: 'no-cache' }).then(r => r.data)
+  const fn = () => clients![clientId]?.query({ query, variables, fetchPolicy: 'no-cache', context }).then(r => r.data)
 
   return { key, query, clientId, variables, fn }
 }