Integrate graphql crunch

package.json

@@ -61,8 +61,10 @@
     "express": "^4.13.3",
     "express-force-ssl": "^0.3.0",
     "express-graphql": "^0.6.1",
+    "express-interceptor": "^1.2.0",
     "graphiql": "^0.11.11",
     "graphql": "^0.13.2",
+    "graphql-crunch": "^1.1.2",
     "graphql-depth-limit": "^1.1.0",
     "graphql-relay": "^0.5.4",
     "graphql-tools": "^3.0.0",
@@ -118,6 +120,7 @@
     "lint-staged": "^3.4.0",
     "prettier": "^1.7",
     "sinon": "^1.17.2",
+    "supertest": "^3.1.0",
     "typescript": "^2.7.2",
     "typescript-babel-jest": "^1.0.5"
   },

src/index.js

@@ -13,6 +13,7 @@ import moment from "moment"
 import morgan from "artsy-morgan"
 import raven from "raven"
 import xapp from "artsy-xapp"
+import crunchInterceptor from "./lib/crunchInterceptor"
 import {
   fetchLoggerSetup,
   fetchLoggerRequestDone,
@@ -99,6 +100,7 @@ async function startApp() {
     },
     logQueryDetailsIfEnabled(),
     fetchPersistedQuery,
+    crunchInterceptor,
     graphqlHTTP((req, res) => {
       const accessToken = req.headers["x-access-token"]
       const userID = req.headers["x-user-id"]

src/lib/__tests__/crunchInterceptor.test.js

@@ -0,0 +1,45 @@
+import request from "supertest"
+import { crunch } from "graphql-crunch"
+import { app, invokeError } from "../../test/gql-server"
+import { mockInterceptor } from "../../test/interceptor"
+
+import crunchInterceptor, { interceptorCallback } from "../crunchInterceptor"
+
+const fakeCrunch = intercept =>
+  mockInterceptor(interceptorCallback, {
+    intercept,
+  })
+
+describe("crunchInterceptor", () => {
+  it("should pass the result through unchanged when no param is present", () => {
+    const intercept = jest.fn()
+    return request(app(fakeCrunch(intercept)))
+      .get("/?query={greeting}")
+      .set("Accept", "application/json")
+      .expect(200)
+      .then(() => {
+        expect(intercept).not.toHaveBeenCalled()
+      })
+  })
+
+  it("should crunch the result when param is present", () => {
+    return request(app(crunchInterceptor))
+      .get("/?query={greeting}&crunch")
+      .set("Accept", "application/json")
+      .expect(200)
+      .then(res => {
+        expect(res.body.data).toMatchObject(crunch({ greeting: "Hello World" }))
+      })
+  })
+
+  it("should not try to crunch on an error", () => {
+    const intercept = jest.fn()
+    return request(app(invokeError(404), fakeCrunch(intercept)))
+      .get("/?query={greeting}&crunch")
+      .set("Accept", "application/json")
+      .expect(404)
+      .then(() => {
+        expect(intercept).not.toHaveBeenCalled()
+      })
+  })
+})

src/lib/crunchInterceptor.js

@@ -0,0 +1,15 @@
+import { crunch } from "graphql-crunch"
+import interceptor from "express-interceptor"
+
+export const interceptorCallback = req => ({
+  isInterceptable: () => req.query.hasOwnProperty("crunch"),
+  intercept: (body, send) => {
+    body = JSON.parse(body) // eslint-disable-line no-param-reassign
+    if (body && body.data) {
+      body.data = crunch(body.data) // eslint-disable-line no-param-reassign
+    }
+    send(JSON.stringify(body))
+  },
+})
+
+export default interceptor(interceptorCallback)

src/test/gql-server.js

@@ -0,0 +1,39 @@
+import graphqlHTTP from "express-graphql"
+import express from "express"
+import bodyParser from "body-parser"
+import { makeExecutableSchema, addMockFunctionsToSchema } from "graphql-tools"
+
+export const invokeError = status => (req, res, next) => {
+  const err = new Error()
+  err.status = status
+  next(err)
+}
+
+const exampleSchema = `
+  type Query {
+    greeting: String
+  }`
+
+export const gqlServer = ({
+  schema = exampleSchema,
+  mocks = {},
+  middleware = [],
+}) => {
+  const app = express()
+  const execSchema = makeExecutableSchema({
+    typeDefs: schema,
+  })
+  addMockFunctionsToSchema({ schema: execSchema, mocks })
+  app.use(
+    "/",
+    bodyParser.json(),
+    ...middleware,
+    graphqlHTTP({
+      schema: execSchema,
+      graphiql: false,
+    })
+  )
+  return app
+}
+
+export const app = (...middleware) => gqlServer({ middleware })

src/test/interceptor.js

@@ -0,0 +1,7 @@
+import interceptor from "express-interceptor"
+
+export const mockInterceptor = (interceptorCallback, fakeInterceptorOptions) =>
+  interceptor((req, res) => ({
+    ...interceptorCallback(req, res),
+    ...fakeInterceptorOptions,
+  }))

yarn.lock

@@ -1649,6 +1649,12 @@ color-name@^1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
 
+combined-stream@1.0.6:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.6.tgz#723e7df6e801ac5613113a7e445a9b69cb632818"
+  dependencies:
+    delayed-stream "~1.0.0"
+
 combined-stream@^1.0.5, combined-stream@~1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.5.tgz#938370a57b4a51dea2c77c15d5c5fdf895164009"
@@ -1675,7 +1681,7 @@ compare-versions@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/compare-versions/-/compare-versions-3.1.0.tgz#43310256a5c555aaed4193c04d8f154cf9c6efd5"
 
-component-emitter@^1.2.1, component-emitter@~1.2.0:
+component-emitter@^1.2.0, component-emitter@^1.2.1, component-emitter@~1.2.0:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
 
@@ -1752,6 +1758,10 @@ cookiejar@2.0.6:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/cookiejar/-/cookiejar-2.0.6.tgz#0abf356ad00d1c5a219d88d44518046dd026acfe"
 
+cookiejar@^2.1.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/cookiejar/-/cookiejar-2.1.1.tgz#41ad57b1b555951ec171412a81942b1e8200d34a"
+
 copy-descriptor@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
@@ -2348,6 +2358,12 @@ express-graphql@^0.6.1:
     http-errors "^1.3.0"
     raw-body "^2.1.0"
 
+express-interceptor@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/express-interceptor/-/express-interceptor-1.2.0.tgz#33460a8e11dce7e5a022caf555d377e45ddb822a"
+  dependencies:
+    debug "^2.2.0"
+
 express@^4.13.3:
   version "4.16.2"
   resolved "https://registry.yarnpkg.com/express/-/express-4.16.2.tgz#e35c6dfe2d64b7dca0a5cd4f21781be3299e076c"
@@ -2400,7 +2416,7 @@ extend@3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.0.tgz#5a474353b9f3353ddd8176dfd37b91c83a46f1d4"
 
-extend@~3.0.0, extend@~3.0.1:
+extend@^3.0.0, extend@~3.0.0, extend@~3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
 
@@ -2584,6 +2600,14 @@ form-data@1.0.0-rc3:
     combined-stream "^1.0.5"
     mime-types "^2.1.3"
 
+form-data@^2.3.1:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.3.2.tgz#4970498be604c20c005d4f5c23aecd21d6b49099"
+  dependencies:
+    asynckit "^0.4.0"
+    combined-stream "1.0.6"
+    mime-types "^2.1.12"
+
 form-data@~2.1.1:
   version "2.1.4"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.1.4.tgz#33c183acf193276ecaa98143a69e94bfee1750d1"
@@ -2606,6 +2630,10 @@ formatio@1.1.1:
   dependencies:
     samsam "~1.1"
 
+formidable@^1.1.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/formidable/-/formidable-1.2.1.tgz#70fb7ca0290ee6ff961090415f4b3df3d2082659"
+
 formidable@~1.0.14:
   version "1.0.17"
   resolved "https://registry.yarnpkg.com/formidable/-/formidable-1.0.17.tgz#ef5491490f9433b705faa77249c99029ae348559"
@@ -2800,6 +2828,10 @@ graphiql@^0.11.11:
     codemirror-graphql "^0.6.11"
     markdown-it "^8.4.0"
 
+graphql-crunch@^1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/graphql-crunch/-/graphql-crunch-1.1.2.tgz#8c8e686d1cb92b55f779fdf902c99ac644280c15"
+
 graphql-depth-limit@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/graphql-depth-limit/-/graphql-depth-limit-1.1.0.tgz#59fe6b2acea0ab30ee7344f4c75df39cc18244e8"
@@ -4357,7 +4389,7 @@ mersenne-twister@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/mersenne-twister/-/mersenne-twister-1.1.0.tgz#f916618ee43d7179efcf641bec4531eb9670978a"
 
-methods@~1.1.1, methods@~1.1.2:
+methods@^1.1.1, methods@~1.1.1, methods@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
 
@@ -4419,6 +4451,10 @@ mime@1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.4.1.tgz#121f9ebc49e3766f311a76e1fa1c8003c4b03aa6"
 
+mime@^1.4.1:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
+
 mimic-fn@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.1.0.tgz#e667783d92e89dbd342818b5230b9d62a672ad18"
@@ -5024,6 +5060,10 @@ qs@^5.2.0:
   version "5.2.1"
   resolved "https://registry.yarnpkg.com/qs/-/qs-5.2.1.tgz#801fee030e0b9450d6385adc48a4cc55b44aedfc"
 
+qs@^6.5.1:
+  version "6.5.2"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
+
 qs@~6.4.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
@@ -5143,6 +5183,18 @@ readable-stream@^2.0.2, readable-stream@^2.0.6, readable-stream@^2.1.4, readable
     string_decoder "~1.0.3"
     util-deprecate "~1.0.1"
 
+readable-stream@^2.0.5:
+  version "2.3.6"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.3"
+    isarray "~1.0.0"
+    process-nextick-args "~2.0.0"
+    safe-buffer "~5.1.1"
+    string_decoder "~1.1.1"
+    util-deprecate "~1.0.1"
+
 readdirp@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-2.1.0.tgz#4ed0ad060df3073300c48440373f72d1cc642d78"
@@ -5806,6 +5858,12 @@ string_decoder@~1.0.3:
   dependencies:
     safe-buffer "~5.1.0"
 
+string_decoder@~1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
+  dependencies:
+    safe-buffer "~5.1.0"
+
 stringstream@~0.0.4, stringstream@~0.0.5:
   version "0.0.5"
   resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.5.tgz#4e484cd4de5a0bbbee18e46307710a8a81621878"
@@ -5844,6 +5902,21 @@ strip-json-comments@~2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
 
+superagent@3.8.2:
+  version "3.8.2"
+  resolved "https://registry.yarnpkg.com/superagent/-/superagent-3.8.2.tgz#e4a11b9d047f7d3efeb3bbe536d9ec0021d16403"
+  dependencies:
+    component-emitter "^1.2.0"
+    cookiejar "^2.1.0"
+    debug "^3.1.0"
+    extend "^3.0.0"
+    form-data "^2.3.1"
+    formidable "^1.1.1"
+    methods "^1.1.1"
+    mime "^1.4.1"
+    qs "^6.5.1"
+    readable-stream "^2.0.5"
+
 superagent@^1.2.0:
   version "1.8.5"
   resolved "https://registry.yarnpkg.com/superagent/-/superagent-1.8.5.tgz#1c0ddc3af30e80eb84ebc05cb2122da8fe940b55"
@@ -5860,6 +5933,13 @@ superagent@^1.2.0:
     readable-stream "1.0.27-1"
     reduce-component "1.0.1"
 
+supertest@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/supertest/-/supertest-3.1.0.tgz#f9ebaf488e60f2176021ec580bdd23ad269e7bc6"
+  dependencies:
+    methods "~1.1.2"
+    superagent "3.8.2"
+
 supports-color@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"