TEMP: Working data pipeline & rendering

.gitignore

@@ -0,0 +1 @@
+*.db

app/collector.py

@@ -1,102 +1,63 @@
-#!/usr/bin/env python3.11
-
-import re
 import json
-import ipaddress
 import uuid
 import hashlib
 
+from datetime import datetime
+
 from .db import Database
 
-def parse_traceroute_output(output, timestamp):
-    lines = output.strip().split('\n')
-    trace = {}
-    hops = []
 
-    ip_regex = r"\((.*?)\)" # ipaddress are in ()
+def parse_traceroute_output(data: str, origin: str):
+    lines = data.strip().split("\n")
+    target = lines[0].split()[2]
 
-    target = output.strip().split('\n')[0].split()[2]
+    created = datetime.now().isoformat()
+
+    trace = {"target": target, "created": created, "origin": origin, "hops": []}
+
+    prev_latency = 0
 
     for line in lines[1:]:
-        hop = {}
         hop_info = line.split()
-        hop_number = int(hop_info[0])
+        print("LINE:", hop_info)
-        hop_name = None
+        try:
-        hop_ip = None
+            number, name, ip, latency, _ = hop_info
-        hop_latency = None
+            hop = {
+                "created": created,
+                "number": number,
+                "name": name,
+                "ip": ip.strip("()"),
+                "latency": float(latency),
+            }
+        except ValueError:
+            number, name = hop_info
+            hop = {
+                "created": created,
+                "number": number,
+                "name": name,
+                "ip": None,
+                "latency": None,
+            }
 
-        latencies = []
+        trace["hops"].append(hop)
-
-        #print("##### "+str(hop_info))
-        count = 0
-        for part in hop_info[1:]:
-            count += 1
-
-            # source node drops or blocks icmp packages
-            # We will give funny to name to hop for not answering and move on.
-            if part == '*':
-                hop_name = 'unresponsive'
-                hop_ip = 'unresponsive'
-                break
-
-
-            # If first colum is either name or ip-address
-            if count == 1:
-                match = re.search(ip_regex, part)
-                if  match:
-                    hop_ip = part.strip('()')
-                else:
-                    hop_name = part
-
-            # Second colum is ip-address first latency reading
-            if count == 2:
-                if re.search(ip_regex, part):
-                    try:
-                        _ip = ipaddress.ip_address(part.strip('()'))
-                        hop_ip = part.strip('()')
-                    except ValueError:
-                        pass  # Ignore if it's not a valid IP address
-
-            # Rest of the input colums are either latency floats, 'ms' or
-            # reruns of the hop_name and hop_ip...
-            # We only need the latency floats anymore.
-            else:
-                try:
-                    latency = float(part)
-                    latencies.append(latency)
-                except ValueError:
-                    pass
-
-        hop_latency = sum(latencies) / len(latencies) if latencies else None
-
-        hop['hop_number'] = hop_number
-        if not hop_name == None:
-            hop['hop_name'] = hop_name
-        hop['hop_ip'] = hop_ip
-        hop['hop_latency'] = hop_latency
-        hops.append(hop)
-
-    trace['target'] = target
-    trace['timestamp'] = timestamp
-    trace['hops'] = hops
 
     return trace
 
 
-def store_traceroute(node, trace):
+def store_traceroute(trace):
     db = Database()
 
-    #hops_json = json.dumps(trace['hops'])
+    # hops_json = json.dumps(trace['hops'])
 
     path_ids = {}
 
     previous_hop_ip = None
     previous_hop_latency = None
-    for hop in trace['hops']:
+    for hop in trace["hops"]:
-        hop_number = hop['hop_number']
+        hop_number = hop["number"]
-        hop_name = hop.get('hop_name')
+        hop_name = hop.get("name")
-        hop_ip = hop.get('hop_ip')
+        hop_ip = hop.get("ip")
-        hop_latency = hop.get('hop_latency')
+        hop_latency = hop.get("latency")
         link_id = None
 
         # insert links and get their id's
@@ -112,20 +73,21 @@ def store_traceroute(node, trace):
         # calculate link latency if possible and store it
         if link_id and previous_hop_latency:
             link_latency = hop_latency - previous_hop_latency
-            db.create_latency(link_id, trace['timestamp'], link_latency)
+            db.create_latency(link_id, trace["created"], link_latency)
 
     # make entry to "Paths" table
     if path_ids:
         json_path_ids = json.dumps(path_ids)
-        db.create_path(node, trace['target'], json_path_ids)
+        db.create_path(node, trace["target"], json_path_ids)
 
     db.end()
 
 
-
 def generate_node_id():
     mac = uuid.getnode()
-    mac_str = ':'.join(['{:02x}'.format((mac >> ele) & 0xff) for ele in range(0,8*6,8)][::-1])
+    mac_str = ":".join(
+        ["{:02x}".format((mac >> ele) & 0xFF) for ele in range(0, 8 * 6, 8)][::-1]
+    )
 
     # Hash the MAC address using SHA-256 to generate a unique ID
     unique_id = hashlib.sha256(mac_str.encode()).hexdigest()

app/db.py

@@ -12,40 +12,35 @@ class Database:
     def __init__(self):
         self.db_file = DB_FILE
         self.conn = sqlite3.connect(self.db_file, check_same_thread=False)
+
+        # Return fetch() data as Row objects, instead of tuples.
+        self.conn.row_factory = sqlite3.Row
+
         self.cursor = self.conn.cursor()
 
     def create_tables(self):
-        self.cursor.executescript("""
+        self.cursor.executescript(
-            CREATE TABLE IF NOT EXISTS Links (
+            """
-                id INTEGER PRIMARY KEY,
+            CREATE TABLE IF NOT EXISTS Traces (
-                source_ip TEXT NOT NULL,
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
-                destination_ip TEXT NOT NULL,
+                created TEXT NOT NULL,
-                UNIQUE(source_ip, destination_ip)
+                origin TEXT NOT NULL,
+                target TEXT NOT NULL
             );
 
-            CREATE TABLE IF NOT EXISTS Paths (
+            CREATE TABLE IF NOT EXISTS Hops (
-                id INTEGER PRIMARY KEY,
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
-                node TEXT NOT NULL,
+                trace_id INTEGER,
-                target TEXT NOT NULL,
+                created TEXT NOT NULL,
-                hops_json TEXT NOT NULL,
+                number INTEGER NOT NULL,
-                UNIQUE(node, target, hops_json)
+                name TEXT,
-            );
+                ip TEXT,
+                latency TEXT,
 
-            CREATE TABLE IF NOT EXISTS Latency (
+                FOREIGN KEY(trace_id) REFERENCES Traces(id)
-                id INTEGER PRIMARY KEY,
-                link_id INTEGER NOT NULL,
-                timestamp DATETIME DEFAULT CURRENT_TIMESTAMP,
-                latency_ms REAL NOT NULL,
-                FOREIGN KEY (link_id) REFERENCES Links(id)
             );
-
+        """
-            CREATE TABLE IF NOT EXISTS HopDetails (
+        )
-                id INTEGER PRIMARY KEY,
-                hop_name TEXT,
-                hop_ip TEXT,
-                hop_latency TEXT
-            );
-        """)
 
     def end(self):
         """Always call this after you're done with the connection / request."""
@@ -53,71 +48,80 @@ class Database:
         self.conn.commit()
         self.conn.close()
 
-    def get_traceroute(self):
+    def list_traces(self):
-        retval = {}
+        # TODO: time filter
+        result = []
 
-        self.cursor.execute('''
+        self.cursor.execute("SELECT * FROM Traces")
-            SELECT target, hops_json
+        traces = self.cursor.fetchall()
-            FROM Paths
-        ''')
-        retval['path'] = self.cursor.fetchall()
 
-        self.cursor.execute('''
+        for t in traces:
-            SELECT source_ip, destination_ip
+            trace = dict(t)
-            FROM Links
-        ''')
-        retval['links'] = self.cursor.fetchall()
 
-        return retval
+            self.cursor.execute(
+                "SELECT number, name, ip, latency FROM Hops WHERE trace_id = ? ORDER BY number ASC",
+                (trace["id"],),
+            )
+            hops = self.cursor.fetchall()
+            trace["hops"] = hops
 
-    def create_link(self, previous_hop_ip, hop_ip):
+            result.append(trace)
+
+        return result
+
+    def create_trace(self, trace):
         self.cursor.execute(
-            "INSERT OR IGNORE INTO Links (source_ip, destination_ip) VALUES (?, ?)",
+            "INSERT OR IGNORE INTO Traces (created, origin, target) VALUES (?, ?, ?)",
-            (previous_hop_ip, hop_ip)
+            (trace["created"], trace["origin"], trace["target"]),
-        )
-        self.cursor.execute(
-            "SELECT id FROM Links WHERE source_ip = ? AND destination_ip = ?",
-            (previous_hop_ip, hop_ip)
         )
+        trace_id = self.cursor.lastrowid
+
+        for hop in trace["hops"]:
+            self.cursor.execute(
+                "INSERT OR IGNORE INTO Hops (trace_id, created, number, name, ip, latency) VALUES (?, ?, ?, ?, ?, ?)",
+                (
+                    trace_id,
+                    hop["created"],
+                    hop["number"],
+                    hop["name"],
+                    hop["ip"],
+                    hop["latency"],
+                ),
+            )
 
         return self.cursor.fetchone()
 
     def create_hop(self, name, ip, latency):
         self.cursor.execute(
-            "INSERT INTO HopDetails (hop_name, hop_ip, hop_latency) VALUES (?, ?, ?)",
+            "INSERT INTO Hops (name, ip, latency) VALUES (?, ?, ?)",
-            (name, ip, latency)
+            (name, ip, latency),
         )
 
     def create_latency(self, link_id, timestamp, link_latency):
         self.cursor.execute(
-            "INSERT INTO Latency (link_id, timestamp, latency_ms) VALUES (?, NOW(), ?)",
+            "INSERT INTO Latency (link_id, timestamp, latency_ms) VALUES (?, ?, ?)",
-            (link_id, timestamp, link_latency)
+            (link_id, timestamp, link_latency),
         )
 
     def create_path(self, node, target, json):
         self.cursor.execute(
             "INSERT OR IGNORE INTO Paths (node, target, hops_json) VALUES (?, ?, ?)",
-            (node, target, json)
+            (node, target, json),
         )
 
 
-
-
 def ensure_table_setup():
     db = Database()
     db.create_tables()
     db.end()
 
 
+####################################################################
+####################################################################
+####################################################################
+####################################################################
 
 
-
-####################################################################
-####################################################################
-####################################################################
-####################################################################
-# Temp testing. Fancy decorator stuff.
-
 def with_connection(func):
     @wraps(func)
     def wrapped(*args, **kwargs):
@@ -130,12 +134,14 @@ def with_connection(func):
         conn.close()
 
         return result
+
     return wrapped
 
 
 @with_connection
 def init_db(cursor: Cursor):
-    cursor.executescript("""
+    cursor.executescript(
+        """
         CREATE TABLE IF NOT EXISTS Links (
             id INTEGER PRIMARY KEY,
             source_ip TEXT NOT NULL,
@@ -165,18 +171,22 @@ def init_db(cursor: Cursor):
             hop_ip TEXT,
             hop_latency TEXT
         );
-    """)
+    """
+    )
+
 
 @with_connection
-def create_link(cursor: Cursor, previous_hop_ip: str, hop_ip: str):
+def insert_hop(cursor: Cursor, previous_hop_ip: str, hop_ip: str):
     """Insert a new hop and return related Link id"""
 
-    cursor.execute("""
+    cursor.execute(
-        INSERT OR IGNORE INTO Links (source_ip, destination_ip) VALUES (?, ?)
+        "INSERT OR IGNORE INTO Links (source_ip, destination_ip) VALUES (?, ?)",
-    """, (previous_hop_ip, hop_ip))
+        (previous_hop_ip, hop_ip),
+    )
 
-    cursor.execute("""
+    cursor.execute(
-        SELECT id FROM Links WHERE source_ip = ? AND destination_ip = ?
+        "SELECT id FROM Links WHERE source_ip = ? AND destination_ip = ?",
-    """, (previous_hop_ip, hop_ip))
+        (previous_hop_ip, hop_ip),
+    )
 
     return cursor.fetchone()

app/main.py

@@ -1,10 +1,8 @@
 from fastapi import Request, FastAPI
 from fastapi.staticfiles import StaticFiles
 
-from datetime import datetime
-
 from .collector import parse_traceroute_output, store_traceroute
-from .db import ensure_table_setup
+from .db import Database, ensure_table_setup
 
 from pprint import pprint as print
 
@@ -14,7 +12,8 @@ ensure_table_setup()
 
 # Setup web framework thingies
 app = FastAPI()
-app.mount("/static", StaticFiles(directory="static"), name="static")
+app.mount("/static", StaticFiles(directory="app/static"), name="static")
+
 
 @app.get("/")
 def read_root():
@@ -33,23 +32,36 @@ def read_root():
             "",
             "",
             "END OF TRANSMISSION",
-        ] + [None]*800
+        ]
+        + [None] * 800,
     }
 
 
-@app.post("/trace/{hostname}")
+@app.get("/trace/")
-async def create_trace(hostname: str, request: Request):
+def list_traces():
+    db = Database()
+
+    trace = db.list_traces()
+
+    db.end()
+    return trace
+
+
+@app.post("/trace/{origin}")
+async def create_trace(origin: str, request: Request):
     raw_data = await request.body()
     data = raw_data.decode("utf-8", "ignore")
 
-    print(f"Received data from {hostname}:")
+    print(f"Received data from {origin}:")
     print(data)
 
-    trace = parse_traceroute_output(data, datetime.now())
+    trace = parse_traceroute_output(data, origin)
 
     print("Parsed data:")
     print(trace)
 
-    store_traceroute(hostname, trace)
+    db = Database()
+    db.create_trace(trace)
+    db.end()
 
-    return {"status": "ok" }
+    return {"status": "ok"}

app/static/index.html

@@ -4,53 +4,11 @@
     <title>Kalzu</title>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1">
-
+    <script src="/static/d3.v7.min.js"></script>
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/sigma.js/2.4.0/sigma.min.js" integrity="sha512-iiPEYww3QXZU5C795JnnINBRNgHqDnRHs9mA7aJoqx4pNE4u3CknCDGmePHFoHtKR/6C9aIcRFa+HJ6obtlteQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/graphology/0.25.4/graphology.umd.min.js" integrity="sha512-tjMBhL9fLMcqoccPOwpRiIQIOAyUh18lWUlUvE10zvG1UNMfxUC4qSERmUq+VF30iavIyqs/q6fSP2o475FAUw==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
   </head>
-  <body style="background: lightgrey">
+  <body style="background: #EEE">
-    <div id="container" style="width: 97%; height: 95vh; background: white; margin: auto; margin-top: 32px"></div>
+    <div id="container"></div>
-    <script>
+    <script src="/static/index.js"></script>
-
-      const hops = [
-        ["_gateway", "(192.168.0.1)  0.549 ms"],
-        ["83-148-246-178.static.lounea.fi", "(83.148.246.178)  1.200 ms"],
-        ["*"],
-        ["*"],
-        ["*"],
-        ["86-60-254-198.static.lounea.fi", "(86.60.254.198)  3.719 ms"],
-        ["72.14.194.142", " (72.14.194.142)  3.716 ms"],
-        ["142.251.53.71", " (142.251.53.71)  3.704 ms"],
-        ["142.250.229.87", " (142.250.229.87)  4.603 ms"],
-        ["mad06s09-in-f142.1e100.net", " (216.58.210.142)  3.700 ms"],
-      ];
-
-      console.log("Hops!", hops)
-
-
-      // Create a graphology graph
-      const graph = new graphology.Graph();
-
-      hops.forEach((hop, i) => {
-        const [ label, extra ] = hop;
-
-        const size = i === 0 ? 15 : 10;
-        const color = "green"
-
-        graph.addNode(i, { label, x: 0, y: i, size, color });
-        if (i > 0) {
-
-          graph.addEdge(i, i-1, { size: 2, color: "purple" });
-        }
-      });
-
-      // graph.addNode("1", { label: "Node 1", x: 0, y: 0, size: 10, color: "blue" });
-      // graph.addNode("2", { label: "Node 2", x: 1, y: 1, size: 20, color: "red" });
-      // graph.addEdge("1", "2", { size: 5, color: "purple" });
-
-      // Instantiate sigma.js and render the graph
-      const sigmaInstance = new Sigma(graph, document.getElementById("container"));
-    </script>
   </body>
 </html>
 </html>

app/static/index.js

@@ -0,0 +1,308 @@
+const linkArc = (d) => {
+  const r = Math.hypot(d.target.x - d.source.x, d.target.y - d.source.y);
+  return `
+    M${d.source.x},${d.source.y}
+    A${r},${r} 0 0,1 ${d.target.x},${d.target.y}
+  `;
+};
+
+const drag = (simulation) => {
+  function dragstarted(event, d) {
+    if (!event.active) simulation.alphaTarget(0.3).restart();
+    d.fx = d.x;
+    d.fy = d.y;
+  }
+
+  function dragged(event, d) {
+    d.fx = event.x;
+    d.fy = event.y;
+  }
+
+  function dragended(event, d) {
+    if (!event.active) simulation.alphaTarget(0);
+    d.fx = null;
+    d.fy = null;
+  }
+
+  return d3
+    .drag()
+    .on("start", dragstarted)
+    .on("drag", dragged)
+    .on("end", dragended);
+};
+
+const drawChart = (data) => {
+  // Specify the dimensions of the chart.
+  const width = 1600;
+  const height = 1200;
+
+  // Specify the color scale.
+  const color = d3.scaleOrdinal(d3.schemeCategory10);
+
+  // The force simulation mutates links and nodes, so create a copy
+  // so that re-evaluating this cell produces the same result.
+  const links = data.links.map((d) => ({ ...d }));
+  const nodes = data.nodes.map((d) => ({ ...d }));
+
+  // Create a simulation with several forces.
+  const simulation = d3
+    .forceSimulation(nodes)
+    .force(
+      "link",
+      d3.forceLink(links).id((d) => d.id),
+    )
+    .force("charge", d3.forceManyBody())
+    .force("x", d3.forceX())
+    .force("y", d3.forceY());
+
+  // Create the SVG container.
+  const svg = d3
+    .create("svg")
+    .attr("width", width)
+    .attr("height", height)
+    .attr("viewBox", [-width / 2, -height / 2, width, height])
+    .attr("style", "max-width: 100%; height: auto;");
+
+  // Add a line for each link, and a circle for each node.
+  const link = svg
+    .append("g")
+    .attr("stroke", "#999")
+    .attr("stroke-opacity", 0.6)
+    .selectAll("line")
+    .data(links)
+    .join("line")
+    .attr("stroke-width", 1); // (d) => Math.sqrt(d.value));
+
+  const node = svg
+    .append("g")
+    .attr("stroke", "#fff")
+    .attr("stroke-width", 1.5)
+    .selectAll("circle")
+    .data(nodes)
+    .join("circle")
+    .attr("r", 5)
+    .attr("fill", (d) => color(d.group));
+
+  node.append("title").text((d) => d.id);
+
+  // Add a drag behavior.
+  node.call(
+    d3.drag().on("start", dragstarted).on("drag", dragged).on("end", dragended),
+  );
+
+  // Set the position attributes of links and nodes each time the simulation ticks.
+  simulation.on("tick", () => {
+    link
+      .attr("x1", (d) => d.source.x)
+      .attr("y1", (d) => d.source.y)
+      .attr("x2", (d) => d.target.x)
+      .attr("y2", (d) => d.target.y);
+
+    node.attr("cx", (d) => d.x).attr("cy", (d) => d.y);
+  });
+
+  // Reheat the simulation when drag starts, and fix the subject position.
+  function dragstarted(event) {
+    if (!event.active) simulation.alphaTarget(0.3).restart();
+    event.subject.fx = event.subject.x;
+    event.subject.fy = event.subject.y;
+  }
+
+  // Update the subject (dragged node) position during drag.
+  function dragged(event) {
+    event.subject.fx = event.x;
+    event.subject.fy = event.y;
+  }
+
+  // Restore the target alpha so the simulation cools after dragging ends.
+  // Unfix the subject position now that it’s no longer being dragged.
+  function dragended(event) {
+    if (!event.active) simulation.alphaTarget(0);
+    event.subject.fx = null;
+    event.subject.fy = null;
+  }
+
+  // When this cell is re-run, stop the previous simulation. (This doesn’t
+  // really matter since the target alpha is zero and the simulation will
+  // stop naturally, but it’s a good practice.)
+  // invalidation.then(() => simulation.stop());
+
+  return svg.node();
+};
+
+const drawChart2 = (data) => {
+  const width = 1600;
+  const height = 1200;
+  const types = Array.from(new Set(data.map((d) => d.type)));
+  const nodes = Array.from(
+    new Set(data.flatMap((l) => [l.source, l.target])),
+    (id) => ({ id }),
+  );
+  const links = data.map((d) => Object.create(d));
+
+  const color = d3.scaleOrdinal(types, d3.schemeCategory10);
+
+  const simulation = d3
+    .forceSimulation(nodes)
+    .force(
+      "link",
+      d3.forceLink(links).id((d) => d.id),
+    )
+    .force("charge", d3.forceManyBody().strength(-400))
+    .force("x", d3.forceX())
+    .force("y", d3.forceY());
+
+  const svg = d3
+    .create("svg")
+    .attr("viewBox", [-width / 2, -height / 2, width, height])
+    .attr("width", width)
+    .attr("height", height)
+    .attr("style", "max-width: 100%; height: auto; font: 12px sans-serif;");
+
+  // Per-type markers, as they don't inherit styles.
+  svg
+    .append("defs")
+    .selectAll("marker")
+    .data(types)
+    .join("marker")
+    .attr("id", (d) => `arrow-${d}`)
+    .attr("viewBox", "0 -5 10 10")
+    .attr("refX", 15)
+    .attr("refY", -0.5)
+    .attr("markerWidth", 6)
+    .attr("markerHeight", 6)
+    .attr("orient", "auto")
+    .append("path")
+    .attr("fill", color)
+    .attr("d", "M0,-5L10,0L0,5");
+
+  const link = svg
+    .append("g")
+    .attr("fill", "none")
+    .attr("stroke-width", 1.5)
+    .selectAll("path")
+    .data(links)
+    .join("path")
+    .attr("stroke", (d) => color(d.type))
+    .attr("marker-end", (d) => `url(${new URL(`#arrow-${d.type}`, location)})`);
+
+  const node = svg
+    .append("g")
+    .attr("fill", "currentColor")
+    .attr("stroke-linecap", "round")
+    .attr("stroke-linejoin", "round")
+    .selectAll("g")
+    .data(nodes)
+    .join("g")
+    .call(drag(simulation));
+
+  node
+    .append("circle")
+    .attr("stroke", "white")
+    .attr("stroke-width", 1.5)
+    .attr("r", 4);
+
+  node
+    .append("text")
+    .attr("x", 8)
+    .attr("y", "0.31em")
+    .text((d) => (d.id.endsWith("*") ? "*" : d.id))
+    .clone(true)
+    .lower()
+    .attr("fill", "none")
+    .attr("stroke", "white")
+    .attr("stroke-width", 3);
+
+  simulation.on("tick", () => {
+    link.attr("d", linkArc);
+    node.attr("transform", (d) => `translate(${d.x},${d.y})`);
+  });
+
+  // invalidation.then(() => simulation.stop());
+
+  return Object.assign(svg.node(), { scales: { color } });
+};
+
+const parseNodesAndLinks = (traces) => {
+  const result = {
+    nodes: [],
+    links: [],
+  };
+
+  traces.forEach((trace) => {
+    let prevId = null;
+
+    const getId = (hop) => {
+      if (prevId === null) {
+        return trace.origin;
+      }
+      if (hop.name === "*") {
+        return `${trace.id}-${hop.number}-*`;
+      }
+
+      return hop.ip;
+    };
+
+    trace.hops.forEach((hop) => {
+      const id = getId(hop);
+
+      // New node
+      result.nodes.push({
+        id: id,
+        group: trace.origin,
+        radius: 8,
+        value: hop.name || "name?",
+        origin: trace.origin,
+      });
+
+      if (prevId) {
+        // New link
+        result.links.push({
+          source: prevId,
+          target: id,
+          type: trace.origin,
+          group: trace.origin,
+        });
+      }
+
+      prevId = id;
+    });
+
+    // Last "destination" node
+    result.nodes.push({
+      id: trace.id,
+      group: trace.origin,
+      radius: 8,
+      value: trace.target,
+    });
+
+    if (prevId) {
+      // New link
+      result.links.push({
+        source: prevId,
+        target: trace.target,
+        type: trace.origin,
+        group: trace.origin,
+      });
+    }
+  });
+
+  // { id: ip, group: origin, radius: 2 }
+  // { source: prev.ip, target: ip, value: latency }
+  return result;
+};
+
+async function main() {
+  const response = await fetch("/trace/");
+  const traces = await response.json();
+
+  console.log("Traces:", traces);
+  const data = parseNodesAndLinks(traces);
+
+  console.log("Data:", data);
+  const chart = drawChart2(data.links);
+
+  container.append(chart);
+}
+
+main();