introspection: Add missing support for deprecated input values (#2855)

Fixes #2834

Author: IvanGoncharov

src/utilities/__tests__/buildClientSchema-test.js

@@ -486,6 +486,14 @@ describe('Type System: build schema from introspection', () => {
 
   it('builds a schema aware of deprecation', () => {
     const sdl = dedent`
+      directive @someDirective(
+        """This is a shiny new argument"""
+        shinyArg: SomeInputObject
+
+        """This was our design mistake :("""
+        oldArg: String @deprecated(reason: "Use shinyArg")
+      ) on QUERY
+
       enum Color {
         """So rosy"""
         RED
@@ -500,13 +508,32 @@ describe('Type System: build schema from introspection', () => {
         MAUVE @deprecated(reason: "No longer in fashion")
       }
 
+      input SomeInputObject {
+        """Nothing special about it, just deprecated for some unknown reason"""
+        oldField: String @deprecated(reason: "Don't use it, use newField instead!")
+
+        """Same field but with a new name"""
+        newField: String
+      }
+
       type Query {
         """This is a shiny string field"""
         shinyString: String
 
         """This is a deprecated string field"""
         deprecatedString: String @deprecated(reason: "Use shinyString")
+
+        """Color of a week"""
         color: Color
+
+        """Some random field"""
+        someField(
+          """This is a shiny new argument"""
+          shinyArg: SomeInputObject
+
+          """This was our design mistake :("""
+          oldArg: String @deprecated(reason: "Use shinyArg")
+        ): String
       }
     `;
 
@@ -515,8 +542,14 @@ describe('Type System: build schema from introspection', () => {
 
   it('builds a schema with empty deprecation reasons', () => {
     const sdl = dedent`
+      directive @someDirective(someArg: SomeInputObject @deprecated(reason: "")) on QUERY
+
       type Query {
-        someField: String @deprecated(reason: "")
+        someField(someArg: SomeInputObject @deprecated(reason: "")): SomeEnum @deprecated(reason: "")
+      }
+
+      input SomeInputObject {
+        someInputField: String @deprecated(reason: "")
       }
 
       enum SomeEnum {

src/utilities/__tests__/getIntrospectionQuery-test.js

@@ -74,4 +74,46 @@ describe('getIntrospectionQuery', () => {
       'specifiedByUrl',
     );
   });
+
+  it('include "isDeprecated" field on input values', () => {
+    expectIntrospectionQuery().toMatch('isDeprecated', 2);
+
+    expectIntrospectionQuery({ inputValueDeprecation: true }).toMatch(
+      'isDeprecated',
+      3,
+    );
+
+    expectIntrospectionQuery({ inputValueDeprecation: false }).toMatch(
+      'isDeprecated',
+      2,
+    );
+  });
+
+  it('include "deprecationReason" field on input values', () => {
+    expectIntrospectionQuery().toMatch('deprecationReason', 2);
+
+    expectIntrospectionQuery({ inputValueDeprecation: true }).toMatch(
+      'deprecationReason',
+      3,
+    );
+
+    expectIntrospectionQuery({ inputValueDeprecation: false }).toMatch(
+      'deprecationReason',
+      2,
+    );
+  });
+
+  it('include deprecated input field and args', () => {
+    expectIntrospectionQuery().toMatch('includeDeprecated: true', 2);
+
+    expectIntrospectionQuery({ inputValueDeprecation: true }).toMatch(
+      'includeDeprecated: true',
+      5,
+    );
+
+    expectIntrospectionQuery({ inputValueDeprecation: false }).toMatch(
+      'includeDeprecated: true',
+      2,
+    );
+  });
 });

src/utilities/buildClientSchema.js

@@ -377,6 +377,7 @@ export function buildClientSchema(
       description: inputValueIntrospection.description,
       type,
       defaultValue,
+      deprecationReason: inputValueIntrospection.deprecationReason,
     };
   }
 

src/utilities/getIntrospectionQuery.d.ts

@@ -18,6 +18,10 @@ export interface IntrospectionOptions {
   // Whether to include `description` field on schema.
   // Default: false
   schemaDescription?: boolean;
+
+  // Whether target GraphQL server support deprecation of input values.
+  // Default: false
+  inputValueDeprecation?: boolean;
 }
 
 export function getIntrospectionQuery(options?: IntrospectionOptions): string;
@@ -169,6 +173,8 @@ export interface IntrospectionInputValue {
   readonly description?: Maybe<string>;
   readonly type: IntrospectionInputTypeRef;
   readonly defaultValue?: Maybe<string>;
+  readonly isDeprecated?: boolean;
+  readonly deprecationReason?: Maybe<string>;
 }
 
 export interface IntrospectionEnumValue {

src/utilities/getIntrospectionQuery.js

@@ -16,6 +16,10 @@ export type IntrospectionOptions = {|
   // Whether to include `description` field on schema.
   // Default: false
   schemaDescription?: boolean,
+
+  // Whether target GraphQL server support deprecation of input values.
+  // Default: false
+  inputValueDeprecation?: boolean,
 |};
 
 export function getIntrospectionQuery(options?: IntrospectionOptions): string {
@@ -24,6 +28,7 @@ export function getIntrospectionQuery(options?: IntrospectionOptions): string {
     specifiedByUrl: false,
     directiveIsRepeatable: false,
     schemaDescription: false,
+    inputValueDeprecation: false,
     ...options,
   };
 
@@ -38,6 +43,10 @@ export function getIntrospectionQuery(options?: IntrospectionOptions): string {
     ? descriptions
     : '';
 
+  function inputDeprecation(str) {
+    return optionsWithDefault.inputValueDeprecation ? str : '';
+  }
+
   return `
     query IntrospectionQuery {
       __schema {
@@ -53,7 +62,7 @@ export function getIntrospectionQuery(options?: IntrospectionOptions): string {
           ${descriptions}
           ${directiveIsRepeatable}
           locations
-          args {
+          args${inputDeprecation('(includeDeprecated: true)')} {
             ...InputValue
           }
         }
@@ -68,7 +77,7 @@ export function getIntrospectionQuery(options?: IntrospectionOptions): string {
       fields(includeDeprecated: true) {
         name
         ${descriptions}
-        args {
+        args${inputDeprecation('(includeDeprecated: true)')} {
           ...InputValue
         }
         type {
@@ -77,7 +86,7 @@ export function getIntrospectionQuery(options?: IntrospectionOptions): string {
         isDeprecated
         deprecationReason
       }
-      inputFields {
+      inputFields${inputDeprecation('(includeDeprecated: true)')} {
         ...InputValue
       }
       interfaces {
@@ -99,6 +108,8 @@ export function getIntrospectionQuery(options?: IntrospectionOptions): string {
       ${descriptions}
       type { ...TypeRef }
       defaultValue
+      ${inputDeprecation('isDeprecated')}
+      ${inputDeprecation('deprecationReason')}
     }
 
     fragment TypeRef on __Type {
@@ -280,6 +291,8 @@ export type IntrospectionInputValue = {|
   +description?: ?string,
   +type: IntrospectionInputTypeRef,
   +defaultValue: ?string,
+  +isDeprecated?: boolean,
+  +deprecationReason?: ?string,
 |};
 
 export type IntrospectionEnumValue = {|

src/utilities/introspectionFromSchema.js

@@ -29,6 +29,7 @@ export function introspectionFromSchema(
     specifiedByUrl: true,
     directiveIsRepeatable: true,
     schemaDescription: true,
+    inputValueDeprecation: true,
     ...options,
   };