Start creating the database structure, but it's unfinished.

.tern-project

@@ -0,0 +1,9 @@
+{
+  "ecmaVersion": 8,
+  "libs": [],
+  "loadEagerly": [],
+  "dontLoad": [],
+  "plugins": {
+    "doc_comment": true
+  }
+}

server/Helpers/Database.mjs

@@ -1,16 +1,18 @@
 "use strict";
 
-import Database from 'batter-sqlite3';
+import fs from 'fs';
+import Database from 'better-sqlite3';
 
-var db_connection = null;
+var db = null;
 
-function init(filename, options) {
-	db_connection = new Database(filename, options);
+async function init(filename, options) {
+	db = new Database(filename, options);
+	db.exec(await fs.promises.readFile("../db_template.sql", "utf8"));
 }
 
-function get_connection() {
-	return db_connection;
+function get_instance() {
+	return db;
 }
 
 
-export { init, get_connection };
+export { init, get_instance };

server/Models/RSSI.mjs

@@ -2,7 +2,7 @@
 
 /**
  * The received signal strength of a message from a single gateway.
- * @param	{string}	id			The id of this rssi measurement.
+ * @param	{number}	id			The id of this rssi measurement.
  * @param	{number}	gateway_id	The id of this gateway.
  * @param	{number}	rssi		The rssi measurement.
  */

server/Repos.SQLite/ReadingRepo.mjs

@@ -1,8 +1,18 @@
 "use strict";
 
+import { get_instance } from '../Helpers/Database.mjs';
+
+
 class ReadingRepo {
-	constructor() {
+	constructor(in_RSSIRepo) {
+		this.db = get_instance();
+		this.RSSIRepo = in_RSSIRepo;
 		
+		this.insert_query = this.db.prepare("INSERT INTO readings")
+	}
+	
+	insert(reading) {
+		this.db.
 	}
 }
 

server/db_template.sql

@@ -0,0 +1,25 @@
+CREATE TABLE readings IF NOT EXISTS (
+	id INTEGER PRIMARY KEY, -- Random unique integer
+	lat FLOAT NOT NULL, -- Latitude component of GPS co-ordinates of reading
+	long FLOAT NOT NULL, -- Longitude component of GPS co-ordinates of reading,
+	data_rate_id INTEGER, -- The id of the data rate code in the data_rates table that describes the data rate at which the message was transmitted
+	code_rate TEXT, -- The coding rate at which the message was transmitted. FUTURE: This may need to be an INTEGER field - not sure
+	bit_rate INTEGER, -- The bit rate at which the message was transmitted
+);
+CREATE TABLE rssis IF NOT EXISTS (
+	id INTEGER PRIMARY KEY, -- Random unique int
+	reading_id INTEGER, -- The id of the object in the readings table that this rssi measurement belongs to
+	gateway_id INTEGER, -- Gateway id that the RSSI was from
+	rssi FLOAT, -- The RSSI value itself
+	channel INTEGER -- The channel that the RSSI was received over. We might be able to use this to detect single-channel gateways
+);
+CREATE TABLE gateways IF NOT EXISTS (
+	id TEXT PRIMARY KEY, -- The gateway s name
+	lat FLOAT, -- Latitude component of the claimed GPS co-ordinates of the gateway
+	long FLOAT -- Longitude component of the claimed GPS co-ordinates of the gateway
+	altitude FLOAT -- Claimed alitude of the gateway
+);
+CREATE TABLE data_rates IF NOT EXISTS (
+	id INTEGER PRIMARY KEY, -- Random unique integer,
+	codename TEXT NOT NULL,
+)

server/package-lock.json

@@ -4,6 +4,19 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "@types/better-sqlite3": {
+      "version": "5.4.0",
+      "resolved": "https://registry.npmjs.org/@types/better-sqlite3/-/better-sqlite3-5.4.0.tgz",
+      "integrity": "sha512-nzm7lJ7l3jBmGUbtkL8cdOMhPkN6Pw2IM+b0V7iIKba+YKiLrjkIy7vVLsBIVnd7+lgzBzrHsXZxCaFTcmw5Ow==",
+      "requires": {
+        "@types/integer": "*"
+      }
+    },
+    "@types/integer": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@types/integer/-/integer-1.0.0.tgz",
+      "integrity": "sha512-3viiRKLoSP2Qr78nMoQjkDc0fan4BgmpOyV1+1gKjE8wWXo3QQ78WItO6f9WuBf3qe3ymDYhM65oqHTOZ0rFxw=="
+    },
     "abbrev": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",

server/package.json

@@ -19,6 +19,7 @@
   "author": "Starbeamrainbowlabs",
   "license": "MPL-2.0",
   "dependencies": {
+    "@types/better-sqlite3": "^5.4.0",
     "better-sqlite3": "^5.4.0",
     "ttn": "^2.3.2"
   }