Mutation

Definitions

1. In GraphQL, an operation type that performs a write or side effect on the server — creating, updating, or deleting data — as opposed to a query, which only reads. More broadly, any in-place modification of a data structure's state.

   In plain English: A request that changes data on the server, like adding or editing a record, as opposed to just reading it.

   Example: "The `createUser` mutation returns the new user object so the client can update the cache without a refetch."

Related Terms

• Idempotent
• Action
• Context
• Optional
• GraphQL Subscription
• GraphQL Fragment
• Provider Pattern
• Reactive State
• Subscription
• Vuex