Merge pull request #4855 from lizhineng/refact/mergeable-types

refact: auto-generated mergeable types

bin/generateMergeableTypes.js

@@ -0,0 +1,27 @@
+const { isObjectType, isInterfaceType } = require('graphql')
+
+module.exports = {
+  plugin: (schema) => {
+    const typesMap = schema.getTypeMap()
+
+    let contents =
+      '/* Generated by bin/generateApolloMergeableTypes.js; DO NOT EDIT. */\n\n'
+
+    contents += 'export const mergeables = [\n'
+
+    Object.keys(typesMap).forEach((typeName) => {
+      const type = typesMap[typeName]
+
+      if (
+        (!typeName.startsWith('__') && isObjectType(type)) ||
+        isInterfaceType(type)
+      ) {
+        contents += `  '${typeName}',\n`
+      }
+    })
+
+    contents += ']\n'
+
+    return contents
+  },
+}

codegen.ts

@@ -10,6 +10,11 @@ const config: CodegenConfig = {
     'src/gql/graphql.ts': {
       plugins: ['typescript', 'typescript-operations'],
     },
+    'src/gql/mergeables.ts': {
+      plugins: [
+        './bin/generateMergeableTypes.js'
+      ],
+    },
   },
 }
 

src/common/utils/apollo.ts

@@ -16,6 +16,7 @@ import {
 } from '~/common/enums'
 import introspectionQueryResultData from '~/common/gql/fragmentTypes.json'
 import { randomString } from '~/common/utils'
+import { mergeables } from '~/gql/mergeables'
 
 import { getIsomorphicCookie } from './cookie'
 import { resolvers } from './resolvers'
@@ -206,14 +207,12 @@ export const createApolloClient = (
   headers?: IncomingHttpHeaders
 ) => {
   const cache = new InMemoryCache({
-    possibleTypes: introspectionQueryResultData,
+    possibleTypes: {
+      ...introspectionQueryResultData,
+      Mergeable: mergeables,
+    },
     typePolicies: {
-      Liker: { merge: true },
-      Official: { merge: true },
-      Recommendation: { merge: true },
-      UserInfo: { merge: true },
-      UserStatus: { merge: true },
-      CommentConnection: { merge: true },
+      Mergeable: { merge: true },
     },
   }).restore(initialState || {})