Merge pull request #28424 from joonhocho/patch-1

graphql-relay/index.d.ts: after, before, first, last can be null or undefined

types/graphql-relay/index.d.ts

@@ -34,12 +34,12 @@ import {
  * whose return type is a connection type with forward pagination.
  */
 export interface ForwardConnectionArgs {
-    after: ConnectionCursor;
-    first: number;
+    after?: ConnectionCursor | null;
+    first?: number | null;
 }
 export const forwardConnectionArgs: GraphQLFieldConfigArgumentMap & {
-    after: ConnectionCursor;
-    first: number;
+    after?: ConnectionCursor | null;
+    first?: number | null;
 };
 
 /**
@@ -47,12 +47,12 @@ export const forwardConnectionArgs: GraphQLFieldConfigArgumentMap & {
  * whose return type is a connection type with backward pagination.
  */
 export interface BackwardConnectionArgs {
-    before: ConnectionCursor;
-    last: number;
+    before?: ConnectionCursor | null;
+    last?: number | null;
 }
 export const backwardConnectionArgs: GraphQLFieldConfigArgumentMap & {
-    before: ConnectionCursor;
-    last: number;
+    before?: ConnectionCursor | null;
+    last?: number | null;
 };
 
 /**
@@ -105,10 +105,10 @@ export type ConnectionCursor = string;
  * A flow type designed to be exposed as `PageInfo` over GraphQL.
  */
 export interface PageInfo {
-    startCursor: ConnectionCursor;
-    endCursor: ConnectionCursor;
-    hasPreviousPage: boolean;
-    hasNextPage: boolean;
+    startCursor?: ConnectionCursor | null;
+    endCursor?: ConnectionCursor | null;
+    hasPreviousPage?: boolean | null;
+    hasNextPage?: boolean | null;
 }
 
 /**
@@ -131,10 +131,10 @@ export interface Edge<T> {
  * A flow type describing the arguments a connection field receives in GraphQL.
  */
 export interface ConnectionArguments {
-    before?: ConnectionCursor;
-    after?: ConnectionCursor;
-    first?: number;
-    last?: number;
+    before?: ConnectionCursor | null;
+    after?: ConnectionCursor | null;
+    first?: number | null;
+    last?: number | null;
 }
 
 // connection/arrayconnection.js
@@ -212,8 +212,8 @@ export function cursorForObjectInConnection<T>(
  * otherwise it will be the default.
  */
 export function getOffsetWithDefault(
-    cursor?: ConnectionCursor,
-    defaultOffset?: number
+    cursor?: ConnectionCursor | null,
+    defaultOffset?: number | null
 ): number;
 
 // mutation/mutation.js