Neo4j

.travis.yml

@@ -1,12 +1,21 @@
 language: node_js
 node_js:
   - "stable"
+env:
+  - NEO4J_VERSION="3.5.14"
+dist: xenial
+snaps:
+  - docker
+services:
+  - neo4j
 jobs:
   include:
     - stage: "Backend"
       install:
         - cd ./ToDoApp/Backend
         - npm install
+      before_install:
+      - docker-compose up -d
       script:
         - npm test
     - stage: "Frontend"

ToDoApp/Backend/README.md

@@ -0,0 +1,34 @@
+# Backend
+
+
+1. Update packages
+-       npm install
+2. Download [Neo4j Desktop](https://neo4j.com/download/neo4j-desktop/?edition=desktop&flavour=unix&release=1.2.3&offline=true)
+3. Create database (*TodoApp*) with password (*password*)
+4. Start database, view Neo4j web interface on:
+
+    - bolt://localhost:7687
+    - http://localhost:7474
+    - https://localhost:7473
+
+5. Start backend
+
+        \\Start with seed
+        node index.js --seed
+
+        \\Start without seed
+        node index.js
+
+6. Write queries from GraphQL web interface (http://localhost:4000/)
+
+## Tips
+
+##### View whole graph in Neo4j web interface
+        MATCH (n)
+        RETURN n
+
+##### Clear database from everything
+        start r=relationship(*) delete r;
+
+        MATCH (n)
+        DETACH DELETE n

ToDoApp/Backend/index.js

@@ -1,17 +1,31 @@
-const { ApolloServer } = require('apollo-server');
+const { ApolloServer, makeExecutableSchema } = require('apollo-server');
 const { mergeResolvers } = require("merge-graphql-schemas");
+const neo4j = require('neo4j-driver');
+const { augmentSchema } = require("neo4j-graphql-js");
+const { seedDatabase } = require("./src/db/seed");
+
+const driver = neo4j.driver(
+    'bolt://localhost',
+    neo4j.auth.basic('neo4j', 'password'),
+    { disableLosslessIntegers: true }
+)
 
 // The ApolloServer constructor requires two parameters: your schema
 // definition and your set of resolvers.
 const { typeDefs } = require('./src/schema/typeDefs');
 
-
 const { userResolver } = require("./src/resolvers/user/userResolver");
 const { todoResolver } = require("./src/resolvers/todo/todoResolver");
 const resolvers = mergeResolvers([userResolver, todoResolver]);
 
+const schema = makeExecutableSchema({ typeDefs, resolvers });
+const augmentedSchema = augmentSchema(schema);
+
+const server = new ApolloServer({ schema: augmentedSchema, context: { driver } });
 
-const server = new ApolloServer({ typeDefs, resolvers});
+if (process.argv.length === 3 && process.argv[2] === "--seed") {
+  seedDatabase(driver)
+}
 
 // The `listen` method launches a web server.
 server.listen().then(({ url }) => {

ToDoApp/Backend/jest.config.js

@@ -0,0 +1,18 @@
+module.exports = {
+  verbose: true,
+  moduleFileExtensions: [
+    "js",
+    "json"
+  ],
+  transform: {
+    "^.+\\.js$": "<rootDir>/node_modules/babel-jest"
+  },
+  collectCoverage: true,
+  collectCoverageFrom: [
+    "src/components/*.{js}",
+    "!**/node_modules/**"
+  ],
+  coverageReporters: [
+    "text-summary"
+  ],
+}