refactor(Example): Elastic50 proxy and multi-version proxy

Author: nodkz

example/index.js renamed to examples/differentVersions/index.js

@@ -2,7 +2,7 @@ import express from 'express';
 import graphqlHTTP from 'express-graphql';
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from 'graphql';
 import elasticsearch from 'elasticsearch';
-import ElasticApiParser from '../src/ElasticApiParser';
+import ElasticApiParser from '../../src/ElasticApiParser'; // or import { ElasticApiParser } from 'graphql-compose-elasticsearch';
 
 const expressPort = process.env.port || process.env.PORT || 9201;
 

examples/elastic50/index.js

@@ -0,0 +1,55 @@
+import express from 'express';
+import graphqlHTTP from 'express-graphql';
+import { GraphQLSchema, GraphQLObjectType, GraphQLString } from 'graphql';
+import elasticsearch from 'elasticsearch';
+import ElasticApiParser from '../../src/ElasticApiParser'; // or import { ElasticApiParser } from 'graphql-compose-elasticsearch';
+
+const expressPort = process.env.port || process.env.PORT || 9201;
+
+const generatedSchema = new GraphQLSchema({
+  query: new GraphQLObjectType({
+    name: 'Query',
+    fields: {
+      // see node_modules/elasticsearch/src/lib/apis/ for available versions
+
+      elastic50: {
+        description: 'Elastic v5.0',
+        type: new GraphQLObjectType({
+          name: 'Elastic50',
+          fields: new ElasticApiParser({ version: '5_0', prefix: 'Elastic50' }).run(),
+        }),
+        args: {
+          host: {
+            type: GraphQLString,
+            defaultValue: 'http://user:pass@localhost:9200',
+          },
+        },
+        resolve: (src, args, context) => {
+          context.elasticClient = new elasticsearch.Client({ // eslint-disable-line no-param-reassign
+            host: args.host,
+            apiVersion: '5.0',
+            log: 'trace',
+          });
+          return {};
+        },
+      },
+    },
+  }),
+});
+
+const server = express();
+server.use('/', graphqlHTTP({
+  schema: generatedSchema,
+  graphiql: true,
+  context: {
+    // elasticClient: new elasticsearch.Client({
+    //   host: 'http://localhost:9200',
+    //   apiVersion: '5.0',
+    //   log: 'trace',
+    // }),
+  },
+}));
+
+server.listen(expressPort, () => {
+  console.log(`The server is running at http://localhost:${expressPort}/`);
+});

package.json

@@ -70,6 +70,7 @@
     "build": "npm-run-all build:*",
     "build:lib": "rimraf lib && babel src --ignore __tests__,__mocks__ -d lib",
     "build:flow": "find ./src -name '*.js' -not -path '*/__*' | while read filepath; do cp $filepath `echo $filepath | sed 's/\\/src\\//\\/lib\\//g'`.flow; done",
+    "example": "nodemon -e js --exec ./node_modules/.bin/babel-node ./examples/elastic50/index.js",
     "coverage": "jest --coverage",
     "lint": "eslint src test *.js",
     "test": "jest",