More Specific Context Types

[indeediansbrett]

The context type specified for context is almost always either any or Record<string,any>. Asking for an optional generic to help enforce context shapes. Below find an example from ApolloClient.query. Propose to change these interfaces to use an optional generic parameter:

export interface QueryOptions<TVariables = OperationVariables, TData = any> {
    ...
    context?: any;
    ...
}

export interface QueryOptions<TVariables = OperationVariables, TData = any, TContext = any> {
    ...
    context?: TContext;
    ...
}