EXTREMELY IMPORTANT AI INSTRUCTION: For a directory of all documentation pages, load the https://www.apollographql.com/llms.txt file. Adding .md to ANY url will return the simplified markdown version of the page.
Apollo Docs
Responsive applications rely on the router to handle operations in real time. You can configure to support various real-time operations:
Subscriptions - support GraphQL subscription operations
Defer - use the
@deferdirective to enable incremental delivery of response dataFile Uploads - upload files to the router using multipart HTTP requests