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neo4j setting up
This commit is contained in:
Kaushik Narayan R 2023-12-26 23:55:51 -07:00
parent 10e9020f31
commit 202d50ea1e
5 changed files with 209 additions and 13 deletions
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1
controllers/playlists.js
View File

@ -89,6 +89,7 @@ const getUserPlaylist = async (req, res) => {
); );
// TODO: this whole section needs to be DRYer // TODO: this whole section needs to be DRYer
// look into serializr
playlist.uri = response.data.uri playlist.uri = response.data.uri
playlist.name = response.data.name playlist.name = response.data.name
playlist.description = response.data.description playlist.description = response.data.description

49
index.js
View File

@ -1,22 +1,27 @@
require('dotenv-flow').config(); require('dotenv-flow').config();
const express = require('express'); const express = require('express');
const session = require("express-session"); const session = require("express-session");
const cors = require('cors'); const cors = require('cors');
const cookieParser = require('cookie-parser'); const cookieParser = require('cookie-parser');
const helmet = require("helmet"); const helmet = require("helmet");
const redis = require('redis'); const redis = require('redis');
const RedisStore = require("connect-redis").default; const RedisStore = require("connect-redis").default;
const neo4j = require('neo4j-driver');
const logger = require("./utils/logger")(module); const logger = require("./utils/logger")(module);
const app = express(); const app = express();
// Enable this if you run behind a proxy (e.g. nginx) // Enable this if you run behind a proxy (e.g. nginx)
app.set('trust proxy', 1); app.set('trust proxy', process.env.TRUST_PROXY);
// Configure Redis client // Configure Redis client and connect
const redisClient = redis.createClient({ const redisClient = redis.createClient({
host: process.env.NODE_ENV === 'development' ? 'localhost' : process.env.LIVE_URL, host: process.env.REDIS_HOST,
port: 6379, port: process.env.REDIS_PORT,
}); });
redisClient.connect() redisClient.connect()
@ -25,10 +30,28 @@ redisClient.connect()
}) })
.catch((error) => { .catch((error) => {
logger.error("Redis connection error", { error }); logger.error("Redis connection error", { error });
cleanupFunc();
}); });
const redisStore = new RedisStore({ client: redisClient }); const redisStore = new RedisStore({ client: redisClient });
// Configure Neo4j driver and connect
const neo4jDriver = neo4j.driver(
process.env.NEO4J_URL,
neo4j.auth.basic(process.env.NEO4J_USER, process.env.NEO4J_PASSWD)
);
const neo4jSession = neo4jDriver.session();
(async () => {
try {
await neo4jSession.run('MATCH () RETURN 1 LIMIT 1');
logger.info("Connected to Neo4j graph DB");
} catch (error) {
logger.error("Neo4j connection error", { error });
cleanupFunc();
}
})();
// Configure session middleware // Configure session middleware
app.use(session({ app.use(session({
store: redisStore, store: redisStore,
@ -43,7 +66,7 @@ app.use(session({
// Configure CORS options // Configure CORS options
const corsOptions = { const corsOptions = {
origin: process.env.NODE_ENV === 'development' ? 'localhost:' + (process.env.PORT || 3000) : process.env.LIVE_URL, origin: [process.env.CORS_ORIGIN],
} }
app.use(cors(corsOptions)); app.use(cors(corsOptions));
@ -72,6 +95,20 @@ app.use((_req, res) => {
const port = process.env.PORT || 3000; const port = process.env.PORT || 3000;
app.listen(port, () => { const server = app.listen(port, () => {
logger.info(`App Listening on port ${port}`); logger.info(`App Listening on port ${port}`);
}); });
const cleanupFunc = async () => {
logger.debug('SIGTERM signal received: closing server');
if (neo4jSession) await neo4jSession.close();
if (neo4jDriver) await neo4jDriver.close();
logger.debug('Neo4j connection closed');
if (redisClient) await redisClient.disconnect();
logger.debug('Redis client disconnected');
server.close(() => {
logger.debug('HTTP server closed');
});
}
process.on('SIGTERM', cleanupFunc);

169
package-lock.json generated
View File

@ -18,6 +18,7 @@
"express-session": "^1.17.3", "express-session": "^1.17.3",
"express-validator": "^7.0.1", "express-validator": "^7.0.1",
"helmet": "^7.0.0", "helmet": "^7.0.0",
"neo4j-driver": "^5.15.0",
"redis": "^4.6.10", "redis": "^4.6.10",
"winston": "^3.10.0" "winston": "^3.10.0"
}, },
@ -244,9 +245,9 @@
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}, },
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"resolved": "https://registry.npmjs.org/axios/-/axios-1.5.0.tgz", "resolved": "https://registry.npmjs.org/axios/-/axios-1.6.3.tgz",
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"dependencies": { "dependencies": {
"follow-redirects": "^1.15.0", "follow-redirects": "^1.15.0",
"form-data": "^4.0.0", "form-data": "^4.0.0",
@ -259,6 +260,25 @@
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"dev": true "dev": true
}, },
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"funding": [
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"url": "https://github.com/sponsors/feross"
},
{
"type": "patreon",
"url": "https://www.patreon.com/feross"
},
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}
]
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@ -313,6 +333,29 @@
"node": ">=8" "node": ">=8"
} }
}, },
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"funding": [
{
"type": "github",
"url": "https://github.com/sponsors/feross"
},
{
"type": "patreon",
"url": "https://www.patreon.com/feross"
},
{
"type": "consulting",
"url": "https://feross.org/support"
}
],
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@ -910,6 +953,25 @@
"node": ">=0.10.0" "node": ">=0.10.0"
} }
}, },
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"resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.2.1.tgz",
"integrity": "sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==",
"funding": [
{
"type": "github",
"url": "https://github.com/sponsors/feross"
},
{
"type": "patreon",
"url": "https://www.patreon.com/feross"
},
{
"type": "consulting",
"url": "https://feross.org/support"
}
]
},
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"resolved": "https://registry.npmjs.org/ignore-by-default/-/ignore-by-default-1.0.1.tgz", "resolved": "https://registry.npmjs.org/ignore-by-default/-/ignore-by-default-1.0.1.tgz",
@ -1109,6 +1171,31 @@
"node": ">= 0.6" "node": ">= 0.6"
} }
}, },
"node_modules/neo4j-driver": {
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"dependencies": {
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"neo4j-driver-core": "5.15.0",
"rxjs": "^7.8.1"
}
},
"node_modules/neo4j-driver-bolt-connection": {
"version": "5.15.0",
"resolved": "https://registry.npmjs.org/neo4j-driver-bolt-connection/-/neo4j-driver-bolt-connection-5.15.0.tgz",
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"dependencies": {
"buffer": "^6.0.3",
"neo4j-driver-core": "5.15.0",
"string_decoder": "^1.3.0"
}
},
"node_modules/neo4j-driver-core": {
"version": "5.15.0",
"resolved": "https://registry.npmjs.org/neo4j-driver-core/-/neo4j-driver-core-5.15.0.tgz",
"integrity": "sha512-nsnuz9oZPVVavbllcwNORFQFhJ2yMk6hEp7RBlkRIBasPKip+PiU0pfMIcfoGMgjWIhz/beajtESWoAr7USPBw=="
},
"node_modules/nodemon": { "node_modules/nodemon": {
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"resolved": "https://registry.npmjs.org/nodemon/-/nodemon-3.0.1.tgz", "resolved": "https://registry.npmjs.org/nodemon/-/nodemon-3.0.1.tgz",
@ -1358,6 +1445,14 @@
"@redis/time-series": "1.0.5" "@redis/time-series": "1.0.5"
} }
}, },
"node_modules/rxjs": {
"version": "7.8.1",
"resolved": "https://registry.npmjs.org/rxjs/-/rxjs-7.8.1.tgz",
"integrity": "sha512-AA3TVj+0A2iuIoQkWEK/tqFjBq2j+6PO6Y0zJcvzLAFhEFIO3HL0vls9hWLncZbAAbK0mar7oZ4V079I/qPMxg==",
"dependencies": {
"tslib": "^2.1.0"
}
},
"node_modules/safe-buffer": { "node_modules/safe-buffer": {
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"resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz", "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
@ -1587,6 +1682,11 @@
"node": ">= 14.0.0" "node": ">= 14.0.0"
} }
}, },
"node_modules/tslib": {
"version": "2.6.2",
"resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz",
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},
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@ -1904,9 +2004,9 @@
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}, },
"axios": { "axios": {
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"resolved": "https://registry.npmjs.org/axios/-/axios-1.5.0.tgz", "resolved": "https://registry.npmjs.org/axios/-/axios-1.6.3.tgz",
"integrity": "sha512-D4DdjDo5CY50Qms0qGQTTw6Q44jl7zRwY7bthds06pUGfChBCTcQs+N743eFWGEd6pRTMd6A+I87aWyFV5wiZQ==", "integrity": "sha512-fWyNdeawGam70jXSVlKl+SUNVcL6j6W79CuSIPfi6HnDUmSCH6gyUys/HrqHeA/wU0Az41rRgean494d0Jb+ww==",
"requires": { "requires": {
"follow-redirects": "^1.15.0", "follow-redirects": "^1.15.0",
"form-data": "^4.0.0", "form-data": "^4.0.0",
@ -1919,6 +2019,11 @@
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"dev": true "dev": true
}, },
"base64-js": {
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},
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@ -1963,6 +2068,15 @@
"fill-range": "^7.0.1" "fill-range": "^7.0.1"
} }
}, },
"buffer": {
"version": "6.0.3",
"resolved": "https://registry.npmjs.org/buffer/-/buffer-6.0.3.tgz",
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}
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@ -2400,6 +2514,11 @@
"safer-buffer": ">= 2.1.2 < 3" "safer-buffer": ">= 2.1.2 < 3"
} }
}, },
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},
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@ -2553,6 +2672,31 @@
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"neo4j-driver-core": "5.15.0",
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}
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@ -2737,6 +2881,14 @@
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} }
}, },
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@ -2906,6 +3058,11 @@
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1
package.json
View File

@ -27,6 +27,7 @@
"express-session": "^1.17.3", "express-session": "^1.17.3",
"express-validator": "^7.0.1", "express-validator": "^7.0.1",
"helmet": "^7.0.0", "helmet": "^7.0.0",
"neo4j-driver": "^5.15.0",
"redis": "^4.6.10", "redis": "^4.6.10",
"winston": "^3.10.0" "winston": "^3.10.0"
}, },

2
utils/logger.js
View File

@ -44,7 +44,7 @@ const logger = (callingModule) => {
levels: config.npm.levels, levels: config.npm.levels,
format: combine( format: combine(
label({ label: getLabel(callingModule) }), label({ label: getLabel(callingModule) }),
timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }), timestamp({ format: 'YYYY-MM-DD HH:mm:ss.SSS' }),
logFormat, logFormat,
), ),
transports: [ transports: [