chore: initial import

.gitignore

@@ -0,0 +1,5 @@
+node_modules/
+.env
+tokens/*.json
+tokens/*.yml
+tokens/*.yaml

Dockerfile

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+FROM node:20-slim
+
+WORKDIR /app
+
+COPY services/api/server.mjs /app/services/api/server.mjs
+RUN mkdir -p /app/tokens
+
+ENV NODE_ENV=production
+EXPOSE 8787
+
+CMD ["node", "services/api/server.mjs"]

README.md

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+# trade-api
+
+Node.js API dla projektu `trade`.
+
+## Uruchomienie lokalnie
+
+```bash
+PORT=8787 HASURA_GRAPHQL_URL=http://localhost:8080/v1/graphql node services/api/server.mjs
+```
+
+## Docker
+
+```bash
+docker build -t trade-api .
+docker run --rm -p 8787:8787 trade-api
+```

services/api/server.mjs

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+import crypto from 'node:crypto';
+import fs from 'node:fs';
+import http from 'node:http';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const SCRIPT_DIR = path.dirname(fileURLToPath(import.meta.url));
+const PROJECT_ROOT = path.resolve(SCRIPT_DIR, '..', '..');
+const TOKENS_DIR = path.join(PROJECT_ROOT, 'tokens');
+
+function readJsonFile(filePath) {
+  try {
+    const raw = fs.readFileSync(filePath, 'utf8');
+    return JSON.parse(raw);
+  } catch {
+    return undefined;
+  }
+}
+
+function getIsoNow() {
+  return new Date().toISOString();
+}
+
+function base64Url(buf) {
+  return Buffer.from(buf)
+    .toString('base64')
+    .replace(/=/g, '')
+    .replace(/\+/g, '-')
+    .replace(/\//g, '_');
+}
+
+function sha256Hex(text) {
+  return crypto.createHash('sha256').update(text, 'utf8').digest('hex');
+}
+
+function generateToken() {
+  return `alg_${base64Url(crypto.randomBytes(32))}`;
+}
+
+function getHeader(req, name) {
+  const v = req.headers[String(name).toLowerCase()];
+  return Array.isArray(v) ? v[0] : v;
+}
+
+function readBearerToken(req) {
+  const auth = getHeader(req, 'authorization');
+  if (auth && typeof auth === 'string') {
+    const m = auth.match(/^Bearer\s+(.+)$/i);
+    if (m && m[1]) return m[1].trim();
+  }
+  const apiKey = getHeader(req, 'x-api-key');
+  if (apiKey && typeof apiKey === 'string' && apiKey.trim()) return apiKey.trim();
+  return undefined;
+}
+
+function withCors(res, corsOrigin) {
+  res.setHeader('access-control-allow-origin', corsOrigin);
+  res.setHeader('access-control-allow-methods', 'GET,POST,OPTIONS');
+  res.setHeader(
+    'access-control-allow-headers',
+    'content-type, authorization, x-api-key, x-admin-secret'
+  );
+}
+
+function sendJson(res, status, body, corsOrigin) {
+  withCors(res, corsOrigin);
+  res.statusCode = status;
+  res.setHeader('content-type', 'application/json; charset=utf-8');
+  res.end(JSON.stringify(body));
+}
+
+async function readBodyJson(req, { maxBytes }) {
+  const chunks = [];
+  let total = 0;
+  for await (const chunk of req) {
+    total += chunk.length;
+    if (total > maxBytes) throw new Error('payload_too_large');
+    chunks.push(chunk);
+  }
+  const text = Buffer.concat(chunks).toString('utf8');
+  if (!text.trim()) return {};
+  try {
+    return JSON.parse(text);
+  } catch {
+    throw new Error('invalid_json');
+  }
+}
+
+function normalizeGraphqlName(value, fallback, label) {
+  const v = String(value || fallback || '')
+    .trim()
+    .toLowerCase();
+  if (!v) return String(fallback || '');
+  if (!/^[a-z][a-z0-9_]*$/.test(v)) throw new Error(`Invalid ${label}: ${value}`);
+  return v;
+}
+
+function resolveConfig() {
+  const hasuraTokens = readJsonFile(path.join(TOKENS_DIR, 'hasura.json')) || {};
+  const apiTokens = readJsonFile(path.join(TOKENS_DIR, 'api.json')) || {};
+
+  const portRaw = process.env.PORT || process.env.API_PORT || apiTokens.port || '8787';
+  const port = Number.parseInt(String(portRaw), 10);
+  if (!Number.isInteger(port) || port <= 0) throw new Error(`Invalid PORT: ${portRaw}`);
+
+  const hasuraUrl =
+    process.env.HASURA_GRAPHQL_URL ||
+    hasuraTokens.graphqlUrl ||
+    hasuraTokens.apiUrl ||
+    'http://localhost:8080/v1/graphql';
+
+  const hasuraAdminSecret =
+    process.env.HASURA_ADMIN_SECRET || hasuraTokens.adminSecret || hasuraTokens.hasuraAdminSecret;
+
+  const apiAdminSecret = process.env.API_ADMIN_SECRET || apiTokens.adminSecret;
+
+  const corsOrigin = process.env.CORS_ORIGIN || apiTokens.corsOrigin || '*';
+
+  const appVersion = String(process.env.APP_VERSION || 'v1').trim() || 'v1';
+  const buildTimestamp = String(process.env.BUILD_TIMESTAMP || '').trim() || undefined;
+  const startedAt = getIsoNow();
+
+  const ticksTable = normalizeGraphqlName(process.env.TICKS_TABLE, 'drift_ticks', 'TICKS_TABLE');
+  const candlesFunction = normalizeGraphqlName(
+    process.env.CANDLES_FUNCTION,
+    'get_drift_candles',
+    'CANDLES_FUNCTION'
+  );
+
+  return {
+    port,
+    hasuraUrl,
+    hasuraAdminSecret,
+    apiAdminSecret,
+    corsOrigin,
+    appVersion,
+    buildTimestamp,
+    startedAt,
+    ticksTable,
+    candlesFunction,
+  };
+}
+
+async function hasuraRequest(cfg, { admin }, query, variables) {
+  const headers = { 'content-type': 'application/json' };
+  if (admin) {
+    if (!cfg.hasuraAdminSecret) throw new Error('Missing HASURA_ADMIN_SECRET (or tokens/hasura.json adminSecret)');
+    headers['x-hasura-admin-secret'] = cfg.hasuraAdminSecret;
+  }
+
+  const res = await fetch(cfg.hasuraUrl, {
+    method: 'POST',
+    headers,
+    body: JSON.stringify({ query, variables }),
+  });
+
+  const text = await res.text();
+  if (!res.ok) throw new Error(`Hasura HTTP ${res.status}: ${text}`);
+
+  let json;
+  try {
+    json = JSON.parse(text);
+  } catch {
+    throw new Error(`Hasura invalid JSON: ${text}`);
+  }
+  if (json.errors?.length) {
+    throw new Error(json.errors.map((e) => e.message).join(' | '));
+  }
+  return json.data;
+}
+
+function normalizeScopes(value) {
+  if (!value) return [];
+  if (Array.isArray(value)) return value.map((v) => String(v)).filter(Boolean);
+  if (typeof value === 'string') {
+    return value
+      .split(',')
+      .map((s) => s.trim())
+      .filter(Boolean);
+  }
+  return [];
+}
+
+async function requireValidToken(cfg, req, requiredScope) {
+  const token = readBearerToken(req);
+  if (!token) return { ok: false, status: 401, error: 'missing_token' };
+
+  const hash = sha256Hex(token);
+  const query = `
+    query ValidToken($hash: String!) {
+      api_tokens(where: {token_hash: {_eq: $hash}, revoked_at: {_is_null: true}}, limit: 1) {
+        id
+        name
+        scopes
+      }
+    }
+  `;
+
+  let data;
+  try {
+    data = await hasuraRequest(cfg, { admin: true }, query, { hash });
+  } catch (err) {
+    return { ok: false, status: 500, error: String(err?.message || err) };
+  }
+
+  const row = data?.api_tokens?.[0];
+  if (!row?.id) return { ok: false, status: 401, error: 'invalid_or_revoked_token' };
+  const scopes = normalizeScopes(row.scopes);
+  if (requiredScope && !scopes.includes(requiredScope)) {
+    return { ok: false, status: 403, error: 'missing_scope' };
+  }
+
+  // best-effort touch
+  const touch = `
+    mutation TouchToken($id: uuid!, $ts: timestamptz!) {
+      update_api_tokens_by_pk(pk_columns: {id: $id}, _set: {last_used_at: $ts}) { id }
+    }
+  `;
+  hasuraRequest(cfg, { admin: true }, touch, { id: row.id, ts: new Date().toISOString() }).catch(() => {});
+
+  return { ok: true, token: { id: row.id, name: row.name } };
+}
+
+function toNumericString(value, fieldName) {
+  if (value == null) throw new Error(`invalid_${fieldName}`);
+  if (typeof value === 'number') {
+    if (!Number.isFinite(value)) throw new Error(`invalid_${fieldName}`);
+    return String(value);
+  }
+  if (typeof value === 'string') {
+    const s = value.trim();
+    if (!s) throw new Error(`invalid_${fieldName}`);
+    const n = Number(s);
+    if (!Number.isFinite(n)) throw new Error(`invalid_${fieldName}`);
+    return s;
+  }
+  // best-effort: allow bigint-like or BN-like objects
+  if (typeof value?.toString === 'function') {
+    const s = String(value.toString()).trim();
+    if (!s) throw new Error(`invalid_${fieldName}`);
+    const n = Number(s);
+    if (!Number.isFinite(n)) throw new Error(`invalid_${fieldName}`);
+    return s;
+  }
+  throw new Error(`invalid_${fieldName}`);
+}
+
+function normalizeTick(input, tokenInfo) {
+  const ts = (input?.ts || input?.timestamp || getIsoNow())?.toString?.();
+  const market_index = input?.market_index ?? input?.marketIndex;
+  const symbol = input?.symbol;
+  const oracle_price = input?.oracle_price ?? input?.oraclePrice ?? input?.price;
+  const mark_price = input?.mark_price ?? input?.markPrice ?? input?.mark;
+  const oracle_slot = input?.oracle_slot ?? input?.oracleSlot ?? input?.slot;
+  const source = (input?.source || 'api')?.toString?.();
+  const raw = input?.raw && typeof input.raw === 'object' ? input.raw : undefined;
+
+  if (!ts || Number.isNaN(Date.parse(ts))) throw new Error('invalid_ts');
+  if (!Number.isInteger(market_index)) throw new Error('invalid_market_index');
+  if (typeof symbol !== 'string' || !symbol.trim()) throw new Error('invalid_symbol');
+  const oracleStr = toNumericString(oracle_price, 'oracle_price');
+  const markStr = mark_price == null ? undefined : toNumericString(mark_price, 'mark_price');
+
+  const slotNum =
+    oracle_slot == null ? undefined : Number.isFinite(Number(oracle_slot)) ? Number(oracle_slot) : undefined;
+
+  const mergedRaw =
+    raw || tokenInfo
+      ? {
+          ...(raw || {}),
+          ingestedBy: tokenInfo ? { tokenId: tokenInfo.id, name: tokenInfo.name } : undefined,
+        }
+      : undefined;
+
+  return {
+    ts,
+    market_index,
+    symbol: symbol.trim(),
+    // Postgres columns are NUMERIC; Hasura `numeric` scalar returns strings and expects string inputs.
+    oracle_price: oracleStr,
+    mark_price: markStr,
+    oracle_slot: slotNum,
+    source,
+    raw: mergedRaw,
+  };
+}
+
+async function insertTick(cfg, tick) {
+  const table = cfg.ticksTable;
+  const insertField = `insert_${table}_one`;
+  const mutation = `
+    mutation InsertTick($object: ${table}_insert_input!) {
+      ${insertField}(object: $object) {
+        id
+      }
+    }
+  `;
+
+  const data = await hasuraRequest(cfg, { admin: true }, mutation, { object: tick });
+  return data?.[insertField]?.id;
+}
+
+async function createApiToken(cfg, name, scopes, meta) {
+  const mutation = `
+    mutation CreateToken($name: String!, $hash: String!, $scopes: [String!]!, $meta: jsonb) {
+      insert_api_tokens_one(object: {name: $name, token_hash: $hash, scopes: $scopes, meta: $meta}) {
+        id
+        name
+        created_at
+      }
+    }
+  `;
+
+  for (let attempt = 0; attempt < 5; attempt++) {
+    const token = generateToken();
+    const hash = sha256Hex(token);
+    try {
+      const data = await hasuraRequest(cfg, { admin: true }, mutation, { name, hash, scopes, meta });
+      const row = data?.insert_api_tokens_one;
+      if (!row?.id) throw new Error('token_insert_failed');
+      return { token, row };
+    } catch (err) {
+      const msg = String(err?.message || err);
+      const isUniqueConflict = msg.toLowerCase().includes('unique') || msg.toLowerCase().includes('constraint');
+      if (!isUniqueConflict) throw err;
+    }
+  }
+  throw new Error('token_generation_failed');
+}
+
+async function revokeApiToken(cfg, id) {
+  const mutation = `
+    mutation RevokeToken($id: uuid!, $ts: timestamptz!) {
+      update_api_tokens_by_pk(pk_columns: {id: $id}, _set: {revoked_at: $ts}) {
+        id
+        revoked_at
+      }
+    }
+  `;
+  const data = await hasuraRequest(cfg, { admin: true }, mutation, { id, ts: new Date().toISOString() });
+  return data?.update_api_tokens_by_pk?.id;
+}
+
+function clampInt(value, min, max) {
+  const n = Number.parseInt(String(value), 10);
+  if (!Number.isFinite(n) || !Number.isInteger(n)) return min;
+  return Math.min(max, Math.max(min, n));
+}
+
+function parseTimeframeToSeconds(tf) {
+  const v = String(tf || '').trim().toLowerCase();
+  if (!v) return 60;
+  const m = v.match(/^(\d+)(s|m|h|d)$/);
+  if (!m) throw new Error(`invalid_tf`);
+  const num = Number.parseInt(m[1], 10);
+  if (!Number.isInteger(num) || num <= 0) throw new Error(`invalid_tf`);
+  const unit = m[2];
+  const mult = unit === 's' ? 1 : unit === 'm' ? 60 : unit === 'h' ? 3600 : 86400;
+  return num * mult;
+}
+
+function mean(values) {
+  if (!values.length) return 0;
+  return values.reduce((a, b) => a + b, 0) / values.length;
+}
+
+function stddev(values) {
+  if (!values.length) return 0;
+  const m = mean(values);
+  const v = values.reduce((acc, x) => acc + (x - m) * (x - m), 0) / values.length;
+  return Math.sqrt(v);
+}
+
+function sma(values, period) {
+  if (period <= 0) throw new Error('period must be > 0');
+  const out = new Array(values.length).fill(null);
+  let sum = 0;
+  for (let i = 0; i < values.length; i++) {
+    sum += values[i];
+    if (i >= period) sum -= values[i - period];
+    if (i >= period - 1) out[i] = sum / period;
+  }
+  return out;
+}
+
+function ema(values, period) {
+  if (period <= 0) throw new Error('period must be > 0');
+  const out = new Array(values.length).fill(null);
+  const k = 2 / (period + 1);
+  if (values.length < period) return out;
+  const first = mean(values.slice(0, period));
+  out[period - 1] = first;
+  let prev = first;
+  for (let i = period; i < values.length; i++) {
+    const next = values[i] * k + prev * (1 - k);
+    out[i] = next;
+    prev = next;
+  }
+  return out;
+}
+
+function rsi(values, period) {
+  if (period <= 0) throw new Error('period must be > 0');
+  const out = new Array(values.length).fill(null);
+  if (values.length <= period) return out;
+
+  let gains = 0;
+  let losses = 0;
+  for (let i = 1; i <= period; i++) {
+    const change = values[i] - values[i - 1];
+    if (change >= 0) gains += change;
+    else losses -= change;
+  }
+  let avgGain = gains / period;
+  let avgLoss = losses / period;
+
+  const rs = avgLoss === 0 ? Number.POSITIVE_INFINITY : avgGain / avgLoss;
+  out[period] = 100 - 100 / (1 + rs);
+
+  for (let i = period + 1; i < values.length; i++) {
+    const change = values[i] - values[i - 1];
+    const gain = Math.max(change, 0);
+    const loss = Math.max(-change, 0);
+    avgGain = (avgGain * (period - 1) + gain) / period;
+    avgLoss = (avgLoss * (period - 1) + loss) / period;
+    const rs2 = avgLoss === 0 ? Number.POSITIVE_INFINITY : avgGain / avgLoss;
+    out[i] = 100 - 100 / (1 + rs2);
+  }
+
+  return out;
+}
+
+function bollingerBands(values, period, stdDevMult) {
+  if (period <= 0) throw new Error('period must be > 0');
+  const upper = new Array(values.length).fill(null);
+  const lower = new Array(values.length).fill(null);
+  const mid = sma(values, period);
+
+  for (let i = period - 1; i < values.length; i++) {
+    const window = values.slice(i - period + 1, i + 1);
+    const sd = stddev(window);
+    const m = mid[i];
+    if (m == null) continue;
+    upper[i] = m + stdDevMult * sd;
+    lower[i] = m - stdDevMult * sd;
+  }
+
+  return { upper, lower, mid };
+}
+
+function macd(values, fastPeriod = 12, slowPeriod = 26, signalPeriod = 9) {
+  const fast = ema(values, fastPeriod);
+  const slow = ema(values, slowPeriod);
+  const macdLine = values.map((_, i) => {
+    const f = fast[i];
+    const s = slow[i];
+    return f == null || s == null ? null : f - s;
+  });
+
+  const signal = new Array(values.length).fill(null);
+  const k = 2 / (signalPeriod + 1);
+  let seeded = false;
+  let prev = 0;
+  const buf = [];
+
+  for (let i = 0; i < macdLine.length; i++) {
+    const v = macdLine[i];
+    if (v == null) continue;
+
+    if (!seeded) {
+      buf.push(v);
+      if (buf.length === signalPeriod) {
+        const first = mean(buf);
+        signal[i] = first;
+        prev = first;
+        seeded = true;
+      }
+      continue;
+    }
+
+    const next = v * k + prev * (1 - k);
+    signal[i] = next;
+    prev = next;
+  }
+
+  return { macd: macdLine, signal };
+}
+
+function toSeries(times, values) {
+  return times.map((t, i) => ({ time: t, value: values[i] ?? null }));
+}
+
+function isAdmin(cfg, req) {
+  if (!cfg.apiAdminSecret) return false;
+  const provided = getHeader(req, 'x-admin-secret');
+  return typeof provided === 'string' && provided === cfg.apiAdminSecret;
+}
+
+async function handler(cfg, req, res) {
+  if (req.method === 'OPTIONS') {
+    withCors(res, cfg.corsOrigin);
+    res.statusCode = 204;
+    res.end();
+    return;
+  }
+
+  const url = new URL(req.url || '/', `http://${req.headers.host || 'localhost'}`);
+  const pathname = url.pathname;
+
+  if (req.method === 'GET' && pathname === '/healthz') {
+    sendJson(
+      res,
+      200,
+      {
+        ok: true,
+        version: cfg.appVersion,
+        buildTimestamp: cfg.buildTimestamp,
+        startedAt: cfg.startedAt,
+        ticksTable: cfg.ticksTable,
+        candlesFunction: cfg.candlesFunction,
+      },
+      cfg.corsOrigin
+    );
+    return;
+  }
+
+  if (req.method === 'GET' && pathname === '/v1/chart') {
+    const auth = await requireValidToken(cfg, req, 'read');
+    if (!auth.ok) {
+      sendJson(res, auth.status, { ok: false, error: auth.error }, cfg.corsOrigin);
+      return;
+    }
+
+    const symbol = (url.searchParams.get('symbol') || '').trim();
+    const source = (url.searchParams.get('source') || '').trim();
+    const tf = (url.searchParams.get('tf') || url.searchParams.get('timeframe') || '1m').trim();
+    const limit = clampInt(url.searchParams.get('limit') || '300', 10, 2000);
+
+    if (!symbol) {
+      sendJson(res, 400, { ok: false, error: 'missing_symbol' }, cfg.corsOrigin);
+      return;
+    }
+
+    let bucketSeconds;
+    try {
+      bucketSeconds = parseTimeframeToSeconds(tf);
+    } catch {
+      sendJson(res, 400, { ok: false, error: 'invalid_tf' }, cfg.corsOrigin);
+      return;
+    }
+
+    const fn = cfg.candlesFunction;
+    const query = `
+      query Candles($symbol: String!, $bucket: Int!, $limit: Int!, $source: String) {
+        ${fn}(args: { p_symbol: $symbol, p_bucket_seconds: $bucket, p_limit: $limit, p_source: $source }) {
+          bucket
+          open
+          high
+          low
+          close
+          oracle_close
+          ticks
+        }
+      }
+    `;
+
+    try {
+      const data = await hasuraRequest(cfg, { admin: true }, query, {
+        symbol,
+        bucket: bucketSeconds,
+        limit,
+        source: source || null,
+      });
+
+      const rows = data?.[fn] || [];
+      const candles = rows
+        .slice()
+        .reverse()
+        .map((r) => {
+          const time = Math.floor(Date.parse(r.bucket) / 1000);
+          const open = Number(r.open);
+          const high = Number(r.high);
+          const low = Number(r.low);
+          const close = Number(r.close);
+          const oracle = r.oracle_close == null ? null : Number(r.oracle_close);
+          const volume = Number(r.ticks || 0);
+          return { time, open, high, low, close, volume, oracle };
+        })
+        .filter((c) => Number.isFinite(c.time) && Number.isFinite(c.open) && Number.isFinite(c.close));
+
+      const times = candles.map((c) => c.time);
+      const closes = candles.map((c) => c.close);
+      const oracleSeries = toSeries(times, candles.map((c) => (c.oracle == null ? null : c.oracle)));
+
+      const sma20 = toSeries(times, sma(closes, 20));
+      const ema20 = toSeries(times, ema(closes, 20));
+      const bb = bollingerBands(closes, 20, 2);
+      const bbUpper = toSeries(times, bb.upper);
+      const bbLower = toSeries(times, bb.lower);
+      const bbMid = toSeries(times, bb.mid);
+      const rsi14 = toSeries(times, rsi(closes, 14));
+      const macdOut = macd(closes, 12, 26, 9);
+      const macdLine = toSeries(times, macdOut.macd);
+      const macdSignal = toSeries(times, macdOut.signal);
+
+      sendJson(
+        res,
+        200,
+        {
+          ok: true,
+          version: cfg.appVersion,
+          buildTimestamp: cfg.buildTimestamp,
+          ticksTable: cfg.ticksTable,
+          candlesFunction: cfg.candlesFunction,
+          symbol,
+          source: source || null,
+          tf,
+          bucketSeconds,
+          candles,
+          indicators: {
+            oracle: oracleSeries,
+            sma20,
+            ema20,
+            bb20: { upper: bbUpper, lower: bbLower, mid: bbMid },
+            rsi14,
+            macd: { macd: macdLine, signal: macdSignal },
+          },
+        },
+        cfg.corsOrigin
+      );
+    } catch (err) {
+      sendJson(res, 500, { ok: false, error: String(err?.message || err) }, cfg.corsOrigin);
+    }
+    return;
+  }
+
+  if (req.method === 'POST' && pathname === '/v1/ingest/tick') {
+    const auth = await requireValidToken(cfg, req, 'write');
+    if (!auth.ok) {
+      sendJson(res, auth.status, { ok: false, error: auth.error }, cfg.corsOrigin);
+      return;
+    }
+
+    let body;
+    try {
+      body = await readBodyJson(req, { maxBytes: 1024 * 1024 });
+    } catch (err) {
+      const msg = String(err?.message || err);
+      if (msg === 'payload_too_large') {
+        sendJson(res, 413, { ok: false, error: 'payload_too_large' }, cfg.corsOrigin);
+        return;
+      }
+      sendJson(res, 400, { ok: false, error: 'invalid_json' }, cfg.corsOrigin);
+      return;
+    }
+
+    let tick;
+    try {
+      tick = normalizeTick(body, auth.token);
+    } catch (err) {
+      sendJson(res, 400, { ok: false, error: String(err?.message || err) }, cfg.corsOrigin);
+      return;
+    }
+
+    try {
+      const id = await insertTick(cfg, tick);
+      sendJson(res, 200, { ok: true, id }, cfg.corsOrigin);
+    } catch (err) {
+      sendJson(res, 500, { ok: false, error: String(err?.message || err) }, cfg.corsOrigin);
+    }
+    return;
+  }
+
+  if (req.method === 'GET' && pathname === '/v1/ticks') {
+    const auth = await requireValidToken(cfg, req, 'read');
+    if (!auth.ok) {
+      sendJson(res, auth.status, { ok: false, error: auth.error }, cfg.corsOrigin);
+      return;
+    }
+
+    const symbol = url.searchParams.get('symbol') || '';
+    const source = url.searchParams.get('source');
+    const limitRaw = url.searchParams.get('limit') || '1000';
+    const limit = Math.min(5000, Math.max(1, Number.parseInt(limitRaw, 10) || 1000));
+    const from = url.searchParams.get('from');
+    const to = url.searchParams.get('to');
+
+    if (!symbol.trim()) {
+      sendJson(res, 400, { ok: false, error: 'missing_symbol' }, cfg.corsOrigin);
+      return;
+    }
+
+    const where = { symbol: { _eq: symbol.trim() } };
+    if (source && source.trim()) where.source = { _eq: source.trim() };
+    if (from || to) {
+      where.ts = {};
+      if (from) where.ts._gte = from;
+      if (to) where.ts._lte = to;
+    }
+
+    const table = cfg.ticksTable;
+    const query = `
+      query Ticks($where: ${table}_bool_exp!, $limit: Int!) {
+        ${table}(where: $where, order_by: {ts: desc}, limit: $limit) {
+          ts
+          market_index
+          symbol
+          oracle_price
+          mark_price
+          oracle_slot
+          source
+        }
+      }
+    `;
+
+    try {
+      const data = await hasuraRequest(cfg, { admin: true }, query, { where, limit });
+      const ticks = (data?.[table] || []).slice().reverse();
+      sendJson(res, 200, { ok: true, version: cfg.appVersion, ticksTable: cfg.ticksTable, ticks }, cfg.corsOrigin);
+    } catch (err) {
+      sendJson(res, 500, { ok: false, error: String(err?.message || err) }, cfg.corsOrigin);
+    }
+    return;
+  }
+
+  if (req.method === 'POST' && pathname === '/v1/admin/tokens') {
+    if (!isAdmin(cfg, req)) {
+      sendJson(res, 401, { ok: false, error: 'admin_unauthorized' }, cfg.corsOrigin);
+      return;
+    }
+
+    let body;
+    try {
+      body = await readBodyJson(req, { maxBytes: 1024 * 1024 });
+    } catch {
+      sendJson(res, 400, { ok: false, error: 'invalid_json' }, cfg.corsOrigin);
+      return;
+    }
+
+    const name = (body?.name || 'algo')?.toString?.().trim();
+    if (!name) {
+      sendJson(res, 400, { ok: false, error: 'missing_name' }, cfg.corsOrigin);
+      return;
+    }
+    const scopes = normalizeScopes(body?.scopes);
+    const resolvedScopes = scopes.length ? scopes : ['write'];
+
+    try {
+      const { token, row } = await createApiToken(cfg, name, resolvedScopes, body?.meta);
+      sendJson(res, 200, { ok: true, token, id: row.id, name: row.name, created_at: row.created_at }, cfg.corsOrigin);
+    } catch (err) {
+      sendJson(res, 500, { ok: false, error: String(err?.message || err) }, cfg.corsOrigin);
+    }
+    return;
+  }
+
+  if (req.method === 'POST' && pathname === '/v1/admin/tokens/revoke') {
+    if (!isAdmin(cfg, req)) {
+      sendJson(res, 401, { ok: false, error: 'admin_unauthorized' }, cfg.corsOrigin);
+      return;
+    }
+
+    let body;
+    try {
+      body = await readBodyJson(req, { maxBytes: 1024 * 1024 });
+    } catch {
+      sendJson(res, 400, { ok: false, error: 'invalid_json' }, cfg.corsOrigin);
+      return;
+    }
+
+    const id = (body?.id || '')?.toString?.().trim();
+    if (!id) {
+      sendJson(res, 400, { ok: false, error: 'missing_id' }, cfg.corsOrigin);
+      return;
+    }
+
+    try {
+      const revokedId = await revokeApiToken(cfg, id);
+      sendJson(res, 200, { ok: true, id: revokedId }, cfg.corsOrigin);
+    } catch (err) {
+      sendJson(res, 500, { ok: false, error: String(err?.message || err) }, cfg.corsOrigin);
+    }
+    return;
+  }
+
+  sendJson(res, 404, { ok: false, error: 'not_found' }, cfg.corsOrigin);
+}
+
+function main() {
+  const cfg = resolveConfig();
+  const server = http.createServer((req, res) => void handler(cfg, req, res));
+
+  server.listen(cfg.port, () => {
+    console.log(
+      JSON.stringify(
+        {
+          service: 'trade-api',
+          version: cfg.appVersion,
+          buildTimestamp: cfg.buildTimestamp,
+          port: cfg.port,
+          hasuraUrl: cfg.hasuraUrl,
+          ticksTable: cfg.ticksTable,
+          candlesFunction: cfg.candlesFunction,
+          hasuraAdminSecret: cfg.hasuraAdminSecret ? '***' : undefined,
+          apiAdminSecret: cfg.apiAdminSecret ? '***' : undefined,
+        },
+        null,
+        2
+      )
+    );
+  });
+}
+
+main();