Flow type fixes

Author: nodkz

src/definition.js

@@ -9,6 +9,7 @@ import type {
   ResolverMWResolve as _ResolverMWResolve,
   ResolverMWOutputTypeFn as _ResolverMWOutputTypeFn,
   ResolverMWOutputType as _ResolverMWOutputType,
+  GraphQLResolveInfo as _GraphQLResolveInfo,
 } from 'graphql-compose/lib/definition.js';
 
 export type ResolverMWArgsFn = _ResolverMWArgsFn;
@@ -20,6 +21,7 @@ export type ResolverMWResolve = _ResolverMWResolve;
 export type ResolverMWOutputTypeFn = _ResolverMWOutputTypeFn;
 export type ResolverMWOutputType = _ResolverMWOutputType;
 
+export type GraphQLResolveInfo = _GraphQLResolveInfo;
 
 import type {
   TypeComposer as _TypeComposer,

src/mutationMiddleware.js

@@ -34,6 +34,7 @@ export default class MutationMiddleware extends ResolverMiddleware {
 
     if (nextArgs.input && nextArgs.input.type) {
       // pass args unchanged
+      // $FlowFixMe
       inputTC = new InputTypeComposer(getNamedType(nextArgs.input.type));
       newNextArgs = nextArgs;
     } else {

src/nodeFieldConfig.js

@@ -7,7 +7,7 @@ import {
 } from 'graphql';
 import { fromGlobalId } from './globalId';
 import NodeInterface from './nodeInterface';
-import type { TypeFindByIdMap } from './definition.js';
+import type { TypeFindByIdMap, GraphQLResolveInfo } from './definition.js';
 import { getProjectionFromAST } from 'graphql-compose';
 
 // this fieldConfig must be set to RootQuery.node field
@@ -21,7 +21,12 @@ export function getNodeFieldConfig(typeToFindByIdMap: TypeFindByIdMap) {
         description: 'The globally unique ID among all types',
       },
     },
-    resolve: (source: mixed, args: {[argName: string]: mixed}, context: mixed, info: mixed) => {
+    resolve: (
+      source: mixed,
+      args: {[argName: string]: mixed},
+      context: mixed,
+      info: GraphQLResolveInfo
+    ) => {
       if (!args.id || !(typeof args.id === 'string')) {
         return null;
       }