@apollo/client#DefaultContext TypeScript Examples

The following examples show how to use @apollo/client#DefaultContext. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: Apollo.ts    From graphql-ts-client with MIT License 6 votes vote down vote up 
export function useTypedMutation<
    TData extends object,
    TVariables extends object,
    TContext = DefaultContext, 
	TCache extends ApolloCache<any> = ApolloCache<any>
>(
    fetcher: Fetcher<"Mutation", TData, TVariables>,
    options?: MutationHookOptions<TData, TVariables, TContext> & {
        readonly operationName?: string
	}
): MutationTuple<
    TData, 
    TVariables, 
    TContext, 
    TCache
> {
    const body = requestBody(fetcher);

    const request = useMemo<DocumentNode>(() => {
		const operationName = options?.operationName ?? `mutation_${util.toMd5(body)}`;
		return gql`mutation ${operationName}${body}`;
	}, [body, options?.operationName]);

	const response = useMutation<
		TData, 
		TVariables, 
		TContext, 
		TCache
	>(request, options);
	const responseData = response[1].data;
	const newResponseData = useMemo(() => util.exceptNullValues(responseData), [responseData]);
	return newResponseData === responseData ? response : [
        response[0],
        { ...response[1], data: newResponseData }
    ];
}