github binding interfaces

Author: schickling

.gitignore

@@ -1,4 +1,5 @@
 node_modules
 .DS_Store
 *.log
-dist
+dist
+.vscode

example/package.json

@@ -4,9 +4,9 @@
     "deploy": "now --public && now alias && now rm --yes --safe graphql-binding-github"
   },
   "dependencies": {
-    "graphql-binding-github": "^0.1.0",
-    "graphql-import": "^0.1.4",
-    "graphql-yoga": "^0.2.2"
+    "graphql-binding-github": "^0.1.1",
+    "graphql-import": "^0.1.5",
+    "graphql-yoga": "^0.2.3"
   },
   "now": {
     "alias": "graphql-binding-github"

example/src/index.js

@@ -7,7 +7,7 @@ const favoriteRepos = [
   { owner: 'graphql', name: 'graphql-js' },
 ]
 
-const token = ''
+const token = process.env.GITHUB_TOKEN || ''
 const github = new GitHub(token)
 
 const typeDefs = importSchema('schemas/app.graphql')
@@ -22,6 +22,7 @@ const resolvers = {
       )
     },
   },
+  ...github.remoteResolvers(typeDefs),
 }
 
 const server = new GraphQLServer({ resolvers, typeDefs })

example/yarn.lock

@@ -368,16 +368,15 @@ glob@^7.0.5:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-graphql-binding-github@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/graphql-binding-github/-/graphql-binding-github-0.1.0.tgz#c871315d5882a8ecfa394016263e5402609eb5b1"
+graphql-binding-github@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/graphql-binding-github/-/graphql-binding-github-0.1.1.tgz#38b9a3ba28c1b05d638d98bd49290346b784d1b6"
   dependencies:
-    "@types/graphql" "^0.11.7"
     apollo-link "^1.0.5"
     apollo-link-http "^1.3.0"
     cross-fetch "^1.1.1"
     graphql "^0.11.7"
-    graphql-tools "^2.11.0"
+    graphql-tools "^2.12.0"
 
 graphql-config@^1.0.9:
   version "1.0.9"
@@ -396,9 +395,9 @@ graphql-extensions@^0.0.x:
     core-js "^2.5.1"
     source-map-support "^0.5.0"
 
-graphql-import@^0.1.4:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/graphql-import/-/graphql-import-0.1.4.tgz#eb9d132ee07da196f32635422ecfaa07fc1ab596"
+graphql-import@^0.1.5:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/graphql-import/-/graphql-import-0.1.5.tgz#f1f6ae6e015adcea15c3e8bbe72247d3795113ea"
   dependencies:
     "@types/graphql" "^0.11.6"
     "@types/lodash" "^4.14.85"
@@ -437,17 +436,25 @@ graphql-subscriptions@^0.5.4:
     es6-promise "^4.1.1"
     iterall "^1.1.3"
 
-graphql-tools@^2.11.0, graphql-tools@^2.7.2:
+graphql-tools@^2.12.0:
+  version "2.12.0"
+  resolved "https://registry.yarnpkg.com/graphql-tools/-/graphql-tools-2.12.0.tgz#6286902650537bf7f20ac87159ab5c8b2e9741f8"
+  dependencies:
+    apollo-utilities "^1.0.1"
+    deprecated-decorator "^0.1.6"
+    uuid "^3.1.0"
+
+graphql-tools@^2.7.2:
   version "2.11.0"
   resolved "https://registry.yarnpkg.com/graphql-tools/-/graphql-tools-2.11.0.tgz#be86d14acfe4ca9411967c6b54bac2eedc0dbb72"
   dependencies:
     apollo-utilities "^1.0.1"
     deprecated-decorator "^0.1.6"
     uuid "^3.1.0"
 
-graphql-yoga@^0.2.2:
-  version "0.2.2"
-  resolved "https://registry.yarnpkg.com/graphql-yoga/-/graphql-yoga-0.2.2.tgz#57d73be235fc4f5411e286a6985b18cbace3dc0a"
+graphql-yoga@^0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/graphql-yoga/-/graphql-yoga-0.2.3.tgz#b1f97a24614985ca210992b87e882a74135b9043"
   dependencies:
     "@types/cors" "^2.8.3"
     "@types/express" "^4.0.39"

src/index.ts

@@ -1,27 +1,35 @@
+import { IResolvers } from 'graphql-tools/dist/Interfaces'
 import {
   delegateToSchema,
   makeExecutableSchema,
   makeRemoteExecutableSchema,
 } from 'graphql-tools'
-import { GraphQLSchema, GraphQLResolveInfo } from 'graphql'
+import {
+  GraphQLSchema,
+  GraphQLResolveInfo,
+  GraphQLUnionType,
+  GraphQLInterfaceType,
+  GraphQLScalarType,
+  buildSchema,
+  GraphQLAbstractType,
+} from 'graphql'
 import * as fs from 'fs'
 import * as path from 'path'
 import GitHubLink from './GitHubLink'
 
 export class GitHub {
-  private schema: GraphQLSchema
+  schema: GraphQLSchema
 
   constructor(token: string) {
     const typeDefs = fs.readFileSync(
       path.join(__dirname, '..', 'schema', 'github.graphql'),
       { encoding: 'utf8' },
     )
 
-    const introspectionSchema = makeExecutableSchema({ typeDefs })
     const link = new GitHubLink(token)
 
     this.schema = makeRemoteExecutableSchema({
-      schema: introspectionSchema,
+      schema: typeDefs,
       link,
     })
   }
@@ -43,4 +51,36 @@ export class GitHub {
       info,
     )
   }
+
+  remoteResolvers(filterSchema?: GraphQLSchema | string): IResolvers {
+    const typeMap = this.schema.getTypeMap()
+
+    if (filterSchema && typeof filterSchema === 'string') {
+      filterSchema = buildSchema(filterSchema)
+    }
+    const filterTypeMap =
+      filterSchema instanceof GraphQLSchema
+        ? filterSchema.getTypeMap()
+        : typeMap
+    const filterType = typeName => typeName in filterTypeMap
+
+    const resolvers = {}
+    Object.keys(typeMap)
+      .filter(filterType)
+      .forEach(typeName => {
+        const type = typeMap[typeName]
+        if (
+          type instanceof GraphQLUnionType ||
+          type instanceof GraphQLInterfaceType
+        ) {
+          resolvers[typeName] = {
+            __resolveType: type.resolveType,
+          }
+        } else if (type instanceof GraphQLScalarType) {
+          resolvers[typeName] = type
+        }
+      })
+
+    return resolvers
+  }
 }

yarn.lock

@@ -2,19 +2,13 @@
 # yarn lockfile v1
 
 
-"@types/events@*":
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/@types/events/-/events-1.1.0.tgz#93b1be91f63c184450385272c47b6496fd028e02"
-
 "@types/graphql@^0.11.7":
   version "0.11.7"
   resolved "https://registry.yarnpkg.com/@types/graphql/-/graphql-0.11.7.tgz#da39a2f7c74e793e32e2bb7b3b68da1691532dd5"
 
-"@types/node@^8.0.54":
-  version "8.0.54"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-8.0.54.tgz#3fd9357db4af388b79e03845340259440edffde6"
-  dependencies:
-    "@types/events" "*"
+"@types/node@^8.0.56":
+  version "8.0.56"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-8.0.56.tgz#c4652f88d7a677e26ccc16c1485c282ce28f1ce9"
 
 "@types/[email protected]":
   version "0.5.3"
@@ -55,9 +49,9 @@ encoding@^0.1.11:
   dependencies:
     iconv-lite "~0.4.13"
 
-graphql-tools@^2.11.0:
-  version "2.11.0"
-  resolved "https://registry.yarnpkg.com/graphql-tools/-/graphql-tools-2.11.0.tgz#be86d14acfe4ca9411967c6b54bac2eedc0dbb72"
+graphql-tools@^2.12.0:
+  version "2.12.0"
+  resolved "https://registry.yarnpkg.com/graphql-tools/-/graphql-tools-2.12.0.tgz#6286902650537bf7f20ac87159ab5c8b2e9741f8"
   dependencies:
     apollo-utilities "^1.0.1"
     deprecated-decorator "^0.1.6"