1207 lines
38 KiB
JavaScript
1207 lines
38 KiB
JavaScript
import crypto from 'node:crypto';
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import fs from 'node:fs';
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import http from 'node:http';
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import path from 'node:path';
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import { fileURLToPath } from 'node:url';
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const SCRIPT_DIR = path.dirname(fileURLToPath(import.meta.url));
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const PROJECT_ROOT = path.resolve(SCRIPT_DIR, '..', '..');
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const TOKENS_DIR = path.join(PROJECT_ROOT, 'tokens');
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function readJsonFile(filePath) {
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try {
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const raw = fs.readFileSync(filePath, 'utf8');
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return JSON.parse(raw);
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} catch {
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return undefined;
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}
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}
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function getIsoNow() {
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return new Date().toISOString();
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}
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function base64Url(buf) {
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return Buffer.from(buf)
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.toString('base64')
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.replace(/=/g, '')
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.replace(/\+/g, '-')
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.replace(/\//g, '_');
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}
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function sha256Hex(text) {
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return crypto.createHash('sha256').update(text, 'utf8').digest('hex');
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}
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function generateToken() {
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return `alg_${base64Url(crypto.randomBytes(32))}`;
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}
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function getHeader(req, name) {
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const v = req.headers[String(name).toLowerCase()];
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return Array.isArray(v) ? v[0] : v;
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}
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function readBearerToken(req) {
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const auth = getHeader(req, 'authorization');
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if (auth && typeof auth === 'string') {
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const m = auth.match(/^Bearer\s+(.+)$/i);
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if (m && m[1]) return m[1].trim();
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}
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const apiKey = getHeader(req, 'x-api-key');
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if (apiKey && typeof apiKey === 'string' && apiKey.trim()) return apiKey.trim();
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return undefined;
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}
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function withCors(res, corsOrigin) {
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res.setHeader('access-control-allow-origin', corsOrigin);
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res.setHeader('access-control-allow-methods', 'GET,POST,OPTIONS');
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res.setHeader(
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'access-control-allow-headers',
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'content-type, authorization, x-api-key, x-admin-secret'
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);
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}
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function sendJson(res, status, body, corsOrigin) {
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withCors(res, corsOrigin);
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res.statusCode = status;
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res.setHeader('content-type', 'application/json; charset=utf-8');
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res.end(JSON.stringify(body));
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}
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async function readBodyJson(req, { maxBytes }) {
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const chunks = [];
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let total = 0;
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for await (const chunk of req) {
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total += chunk.length;
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if (total > maxBytes) throw new Error('payload_too_large');
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chunks.push(chunk);
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}
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const text = Buffer.concat(chunks).toString('utf8');
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if (!text.trim()) return {};
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try {
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return JSON.parse(text);
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} catch {
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throw new Error('invalid_json');
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}
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}
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function normalizeGraphqlName(value, fallback, label) {
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const v = String(value || fallback || '')
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.trim()
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.toLowerCase();
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if (!v) return String(fallback || '');
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if (!/^[a-z][a-z0-9_]*$/.test(v)) throw new Error(`Invalid ${label}: ${value}`);
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return v;
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}
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function resolveConfig() {
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const hasuraTokens = readJsonFile(path.join(TOKENS_DIR, 'hasura.json')) || {};
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const apiTokens = readJsonFile(path.join(TOKENS_DIR, 'api.json')) || {};
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const portRaw = process.env.PORT || process.env.API_PORT || apiTokens.port || '8787';
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const port = Number.parseInt(String(portRaw), 10);
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if (!Number.isInteger(port) || port <= 0) throw new Error(`Invalid PORT: ${portRaw}`);
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const hasuraUrl =
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process.env.HASURA_GRAPHQL_URL ||
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hasuraTokens.graphqlUrl ||
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hasuraTokens.apiUrl ||
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'http://localhost:8080/v1/graphql';
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const hasuraAdminSecret =
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process.env.HASURA_ADMIN_SECRET || hasuraTokens.adminSecret || hasuraTokens.hasuraAdminSecret;
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const apiAdminSecret = process.env.API_ADMIN_SECRET || apiTokens.adminSecret;
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const corsOrigin = process.env.CORS_ORIGIN || apiTokens.corsOrigin || '*';
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const appVersion = String(process.env.APP_VERSION || 'v1').trim() || 'v1';
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const buildTimestamp = String(process.env.BUILD_TIMESTAMP || '').trim() || undefined;
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const startedAt = getIsoNow();
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const ticksTable = normalizeGraphqlName(process.env.TICKS_TABLE, 'drift_ticks', 'TICKS_TABLE');
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const candlesFunction = normalizeGraphqlName(
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process.env.CANDLES_FUNCTION,
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'get_drift_candles',
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'CANDLES_FUNCTION'
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);
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return {
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port,
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hasuraUrl,
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hasuraAdminSecret,
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apiAdminSecret,
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corsOrigin,
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appVersion,
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buildTimestamp,
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startedAt,
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ticksTable,
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candlesFunction,
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};
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}
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async function hasuraRequest(cfg, { admin }, query, variables) {
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const headers = { 'content-type': 'application/json' };
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if (admin) {
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if (!cfg.hasuraAdminSecret) throw new Error('Missing HASURA_ADMIN_SECRET (or tokens/hasura.json adminSecret)');
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headers['x-hasura-admin-secret'] = cfg.hasuraAdminSecret;
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}
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const res = await fetch(cfg.hasuraUrl, {
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method: 'POST',
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headers,
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body: JSON.stringify({ query, variables }),
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});
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const text = await res.text();
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if (!res.ok) throw new Error(`Hasura HTTP ${res.status}: ${text}`);
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let json;
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try {
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json = JSON.parse(text);
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} catch {
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throw new Error(`Hasura invalid JSON: ${text}`);
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}
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if (json.errors?.length) {
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throw new Error(json.errors.map((e) => e.message).join(' | '));
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}
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return json.data;
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}
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function normalizeScopes(value) {
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if (!value) return [];
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if (Array.isArray(value)) return value.map((v) => String(v)).filter(Boolean);
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if (typeof value === 'string') {
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return value
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.split(',')
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.map((s) => s.trim())
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.filter(Boolean);
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}
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return [];
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}
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async function requireValidToken(cfg, req, requiredScope) {
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const token = readBearerToken(req);
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if (!token) return { ok: false, status: 401, error: 'missing_token' };
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const hash = sha256Hex(token);
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const query = `
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query ValidToken($hash: String!) {
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api_tokens(where: {token_hash: {_eq: $hash}, revoked_at: {_is_null: true}}, limit: 1) {
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id
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name
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scopes
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}
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}
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`;
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let data;
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try {
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data = await hasuraRequest(cfg, { admin: true }, query, { hash });
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} catch (err) {
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return { ok: false, status: 500, error: String(err?.message || err) };
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}
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const row = data?.api_tokens?.[0];
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if (!row?.id) return { ok: false, status: 401, error: 'invalid_or_revoked_token' };
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const scopes = normalizeScopes(row.scopes);
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if (requiredScope && !scopes.includes(requiredScope)) {
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return { ok: false, status: 403, error: 'missing_scope' };
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}
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// best-effort touch
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const touch = `
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mutation TouchToken($id: uuid!, $ts: timestamptz!) {
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update_api_tokens_by_pk(pk_columns: {id: $id}, _set: {last_used_at: $ts}) { id }
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}
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`;
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hasuraRequest(cfg, { admin: true }, touch, { id: row.id, ts: new Date().toISOString() }).catch(() => {});
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return { ok: true, token: { id: row.id, name: row.name } };
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}
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function toNumericString(value, fieldName) {
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if (value == null) throw new Error(`invalid_${fieldName}`);
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if (typeof value === 'number') {
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if (!Number.isFinite(value)) throw new Error(`invalid_${fieldName}`);
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return String(value);
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}
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if (typeof value === 'string') {
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const s = value.trim();
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if (!s) throw new Error(`invalid_${fieldName}`);
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const n = Number(s);
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if (!Number.isFinite(n)) throw new Error(`invalid_${fieldName}`);
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return s;
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}
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// best-effort: allow bigint-like or BN-like objects
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if (typeof value?.toString === 'function') {
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const s = String(value.toString()).trim();
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if (!s) throw new Error(`invalid_${fieldName}`);
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const n = Number(s);
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if (!Number.isFinite(n)) throw new Error(`invalid_${fieldName}`);
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return s;
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}
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throw new Error(`invalid_${fieldName}`);
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}
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function normalizeTick(input, tokenInfo) {
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const ts = (input?.ts || input?.timestamp || getIsoNow())?.toString?.();
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const market_index = input?.market_index ?? input?.marketIndex;
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const symbol = input?.symbol;
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const oracle_price = input?.oracle_price ?? input?.oraclePrice ?? input?.price;
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const mark_price = input?.mark_price ?? input?.markPrice ?? input?.mark;
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const oracle_slot = input?.oracle_slot ?? input?.oracleSlot ?? input?.slot;
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const source = (input?.source || 'api')?.toString?.();
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const raw = input?.raw && typeof input.raw === 'object' ? input.raw : undefined;
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if (!ts || Number.isNaN(Date.parse(ts))) throw new Error('invalid_ts');
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if (!Number.isInteger(market_index)) throw new Error('invalid_market_index');
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if (typeof symbol !== 'string' || !symbol.trim()) throw new Error('invalid_symbol');
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const oracleStr = toNumericString(oracle_price, 'oracle_price');
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const markStr = mark_price == null ? undefined : toNumericString(mark_price, 'mark_price');
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const slotNum =
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oracle_slot == null ? undefined : Number.isFinite(Number(oracle_slot)) ? Number(oracle_slot) : undefined;
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const mergedRaw =
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raw || tokenInfo
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? {
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...(raw || {}),
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ingestedBy: tokenInfo ? { tokenId: tokenInfo.id, name: tokenInfo.name } : undefined,
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}
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: undefined;
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return {
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ts,
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market_index,
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symbol: symbol.trim(),
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// Postgres columns are NUMERIC; Hasura `numeric` scalar returns strings and expects string inputs.
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oracle_price: oracleStr,
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mark_price: markStr,
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oracle_slot: slotNum,
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source,
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raw: mergedRaw,
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};
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}
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async function insertTick(cfg, tick) {
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const table = cfg.ticksTable;
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const insertField = `insert_${table}_one`;
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const mutation = `
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mutation InsertTick($object: ${table}_insert_input!) {
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${insertField}(object: $object) {
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id
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}
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}
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`;
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const data = await hasuraRequest(cfg, { admin: true }, mutation, { object: tick });
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return data?.[insertField]?.id;
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}
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async function createApiToken(cfg, name, scopes, meta) {
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const mutation = `
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mutation CreateToken($name: String!, $hash: String!, $scopes: [String!]!, $meta: jsonb) {
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insert_api_tokens_one(object: {name: $name, token_hash: $hash, scopes: $scopes, meta: $meta}) {
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id
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name
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created_at
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}
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}
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`;
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for (let attempt = 0; attempt < 5; attempt++) {
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const token = generateToken();
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const hash = sha256Hex(token);
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try {
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const data = await hasuraRequest(cfg, { admin: true }, mutation, { name, hash, scopes, meta });
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const row = data?.insert_api_tokens_one;
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if (!row?.id) throw new Error('token_insert_failed');
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return { token, row };
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} catch (err) {
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const msg = String(err?.message || err);
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const isUniqueConflict = msg.toLowerCase().includes('unique') || msg.toLowerCase().includes('constraint');
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if (!isUniqueConflict) throw err;
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}
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}
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throw new Error('token_generation_failed');
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}
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async function revokeApiToken(cfg, id) {
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const mutation = `
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mutation RevokeToken($id: uuid!, $ts: timestamptz!) {
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update_api_tokens_by_pk(pk_columns: {id: $id}, _set: {revoked_at: $ts}) {
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id
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revoked_at
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}
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}
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`;
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const data = await hasuraRequest(cfg, { admin: true }, mutation, { id, ts: new Date().toISOString() });
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return data?.update_api_tokens_by_pk?.id;
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}
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function clampInt(value, min, max) {
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const n = Number.parseInt(String(value), 10);
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if (!Number.isFinite(n) || !Number.isInteger(n)) return min;
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return Math.min(max, Math.max(min, n));
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}
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function clampNumber(value, min, max, fallback = min) {
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const n = typeof value === 'number' ? value : typeof value === 'string' ? Number(value) : NaN;
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if (!Number.isFinite(n)) return fallback;
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return Math.min(max, Math.max(min, n));
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}
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function parseNumeric(value) {
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if (value == null) return null;
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if (typeof value === 'number') return Number.isFinite(value) ? value : null;
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if (typeof value === 'string') {
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const t = value.trim();
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if (!t) return null;
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const n = Number(t);
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return Number.isFinite(n) ? n : null;
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}
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if (typeof value?.toString === 'function') {
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try {
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const n = Number(String(value.toString()).trim());
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return Number.isFinite(n) ? n : null;
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} catch {
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return null;
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}
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}
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return null;
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}
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function clampSeriesLimit(value, fallback) {
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const n = Number.parseInt(String(value ?? ''), 10);
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if (!Number.isFinite(n) || !Number.isInteger(n)) return fallback;
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return Math.min(10_000, Math.max(1, n));
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}
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function parseTimeframeToSeconds(tf) {
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const v = String(tf || '').trim().toLowerCase();
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if (!v) return 60;
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const m = v.match(/^(\d+)(s|m|h|d)$/);
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if (!m) throw new Error(`invalid_tf`);
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const num = Number.parseInt(m[1], 10);
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if (!Number.isInteger(num) || num <= 0) throw new Error(`invalid_tf`);
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const unit = m[2];
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const mult = unit === 's' ? 1 : unit === 'm' ? 60 : unit === 'h' ? 3600 : 86400;
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return num * mult;
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}
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function isTruthy(value) {
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if (typeof value === 'boolean') return value;
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const v = String(value ?? '').trim().toLowerCase();
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return v === '1' || v === 'true' || v === 'yes' || v === 'on';
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}
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const solPriceCache = { ts: 0, value: null };
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async function readSolPriceUsd(cfg) {
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const now = Date.now();
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if (now - solPriceCache.ts < 5000) return solPriceCache.value;
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const table = cfg.ticksTable;
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const query = `
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query SolPrice($where: ${table}_bool_exp!) {
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${table}(where: $where, order_by: {ts: desc}, limit: 1) {
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oracle_price
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mark_price
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ts
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}
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}
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`;
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try {
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const data = await hasuraRequest(cfg, { admin: true }, query, { where: { symbol: { _eq: 'SOL-PERP' } } });
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const row = (data?.[table] || [])[0];
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const price = parseNumeric(row?.oracle_price) ?? parseNumeric(row?.mark_price) ?? null;
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solPriceCache.ts = now;
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solPriceCache.value = price;
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return price;
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} catch {
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solPriceCache.ts = now;
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solPriceCache.value = null;
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return null;
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}
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}
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function mean(values) {
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if (!values.length) return 0;
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return values.reduce((a, b) => a + b, 0) / values.length;
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}
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function stddev(values) {
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if (!values.length) return 0;
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const m = mean(values);
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const v = values.reduce((acc, x) => acc + (x - m) * (x - m), 0) / values.length;
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return Math.sqrt(v);
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}
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function sma(values, period) {
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if (period <= 0) throw new Error('period must be > 0');
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const out = new Array(values.length).fill(null);
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let sum = 0;
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for (let i = 0; i < values.length; i++) {
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sum += values[i];
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if (i >= period) sum -= values[i - period];
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if (i >= period - 1) out[i] = sum / period;
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}
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return out;
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}
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function ema(values, period) {
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if (period <= 0) throw new Error('period must be > 0');
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const out = new Array(values.length).fill(null);
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const k = 2 / (period + 1);
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if (values.length < period) return out;
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const first = mean(values.slice(0, period));
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out[period - 1] = first;
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let prev = first;
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for (let i = period; i < values.length; i++) {
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const next = values[i] * k + prev * (1 - k);
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out[i] = next;
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prev = next;
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}
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return out;
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}
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function rsi(values, period) {
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if (period <= 0) throw new Error('period must be > 0');
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const out = new Array(values.length).fill(null);
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if (values.length <= period) return out;
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|
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let gains = 0;
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let losses = 0;
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for (let i = 1; i <= period; i++) {
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const change = values[i] - values[i - 1];
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if (change >= 0) gains += change;
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else losses -= change;
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}
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let avgGain = gains / period;
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let avgLoss = losses / period;
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const rs = avgLoss === 0 ? Number.POSITIVE_INFINITY : avgGain / avgLoss;
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out[period] = 100 - 100 / (1 + rs);
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|
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for (let i = period + 1; i < values.length; i++) {
|
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const change = values[i] - values[i - 1];
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const gain = Math.max(change, 0);
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const loss = Math.max(-change, 0);
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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;
|
|
}
|
|
|
|
// Estimate costs for a new contract (read scope).
|
|
// Uses DLOB slippage table and simple fee/tx estimates (inputs).
|
|
if (req.method === 'POST' && pathname === '/v1/contracts/costs/estimate') {
|
|
const auth = await requireValidToken(cfg, req, 'read');
|
|
if (!auth.ok) {
|
|
sendJson(res, auth.status, { ok: false, error: auth.error }, cfg.corsOrigin);
|
|
return;
|
|
}
|
|
|
|
let body;
|
|
try {
|
|
body = await readBodyJson(req, { maxBytes: 256 * 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;
|
|
}
|
|
|
|
const market = String(body?.market_name || body?.market || '').trim();
|
|
if (!market) {
|
|
sendJson(res, 400, { ok: false, error: 'missing_market' }, cfg.corsOrigin);
|
|
return;
|
|
}
|
|
|
|
const notionalUsd = parseNumeric(body?.notional_usd ?? body?.notionalUsd ?? body?.size_usd ?? body?.sizeUsd);
|
|
if (notionalUsd == null || !(notionalUsd > 0)) {
|
|
sendJson(res, 400, { ok: false, error: 'invalid_notional_usd' }, cfg.corsOrigin);
|
|
return;
|
|
}
|
|
|
|
const sideRaw = String(body?.side || 'long').trim().toLowerCase();
|
|
const entrySide = sideRaw === 'short' || sideRaw === 'sell' ? 'short' : 'long';
|
|
|
|
const defaultTakerBps = parseNumeric(process.env.FEE_TAKER_BPS_DEFAULT) ?? 5;
|
|
const defaultMakerBps = parseNumeric(process.env.FEE_MAKER_BPS_DEFAULT) ?? 0;
|
|
const takerBps = clampNumber(parseNumeric(body?.fee_taker_bps) ?? defaultTakerBps, 0, 1000, defaultTakerBps);
|
|
const makerBps = clampNumber(parseNumeric(body?.fee_maker_bps) ?? defaultMakerBps, -1000, 1000, defaultMakerBps);
|
|
|
|
const orderType = String(body?.order_type || body?.orderType || 'market').trim().toLowerCase();
|
|
const isMarket = orderType === 'market' || orderType === 'taker';
|
|
const feeBps = isMarket ? takerBps : makerBps;
|
|
|
|
let txFeeUsdEst = parseNumeric(body?.tx_fee_usd_est);
|
|
if (txFeeUsdEst == null) {
|
|
const baseLamports = parseNumeric(process.env.TX_BASE_FEE_LAMPORTS_EST) ?? 5000;
|
|
const sigs = parseNumeric(process.env.TX_SIGNATURES_EST) ?? 1;
|
|
const priorityLamports = parseNumeric(process.env.TX_PRIORITY_FEE_LAMPORTS_EST) ?? 0;
|
|
const lamports = Math.max(0, baseLamports) * Math.max(1, sigs) + Math.max(0, priorityLamports);
|
|
const sol = lamports / 1_000_000_000;
|
|
const solUsd = await readSolPriceUsd(cfg);
|
|
txFeeUsdEst = solUsd != null ? sol * solUsd : 0;
|
|
}
|
|
txFeeUsdEst = clampNumber(txFeeUsdEst, 0, 100, 0);
|
|
|
|
const defaultReprices = parseNumeric(process.env.EXPECTED_REPRICES_PER_ENTRY_DEFAULT) ?? 0;
|
|
const expectedReprices = clampInt(body?.expected_reprices_per_entry ?? body?.expectedReprices ?? String(defaultReprices), 0, 500);
|
|
const modifyTxCount = clampInt(body?.modify_tx_count ?? body?.modifyTxCount ?? '2', 0, 10);
|
|
|
|
const wantedSide = entrySide === 'long' ? 'buy' : 'sell';
|
|
|
|
const pickNearest = (rows) => {
|
|
const candidates = (rows || []).filter((r) => String(r.side || '').toLowerCase() === wantedSide);
|
|
let best = null;
|
|
let bestD = Number.POSITIVE_INFINITY;
|
|
for (const r of candidates) {
|
|
const s = parseNumeric(r.size_usd);
|
|
if (s == null) continue;
|
|
const d = Math.abs(s - notionalUsd);
|
|
if (d < bestD) {
|
|
bestD = d;
|
|
best = r;
|
|
}
|
|
}
|
|
return best;
|
|
};
|
|
|
|
const fetchSlippageRows = async (tableName) => {
|
|
const query = `
|
|
query Slippage($market: String!, $limit: Int!) {
|
|
${tableName}(where: {market_name: {_eq: $market}}, order_by: {size_usd: asc}, limit: $limit) {
|
|
market_name
|
|
side
|
|
size_usd
|
|
mid_price
|
|
vwap_price
|
|
worst_price
|
|
impact_bps
|
|
fill_pct
|
|
updated_at
|
|
}
|
|
}
|
|
`;
|
|
const data = await hasuraRequest(cfg, { admin: true }, query, { market, limit: 500 });
|
|
return data?.[tableName] || [];
|
|
};
|
|
|
|
try {
|
|
let rows = [];
|
|
let usedTable = null;
|
|
try {
|
|
rows = await fetchSlippageRows('dlob_slippage_latest_v2');
|
|
usedTable = 'dlob_slippage_latest_v2';
|
|
} catch (e) {
|
|
rows = await fetchSlippageRows('dlob_slippage_latest');
|
|
usedTable = 'dlob_slippage_latest';
|
|
}
|
|
|
|
const best = pickNearest(rows);
|
|
const impactBps = parseNumeric(best?.impact_bps) ?? 0;
|
|
const slippageUsd = (notionalUsd * impactBps) / 10_000;
|
|
const tradeFeeUsd = (notionalUsd * feeBps) / 10_000;
|
|
const modifyCostUsd = expectedReprices * modifyTxCount * txFeeUsdEst;
|
|
const totalUsd = tradeFeeUsd + slippageUsd + txFeeUsdEst + modifyCostUsd;
|
|
const totalBps = (totalUsd / notionalUsd) * 10_000;
|
|
|
|
sendJson(
|
|
res,
|
|
200,
|
|
{
|
|
ok: true,
|
|
input: {
|
|
market_name: market,
|
|
notional_usd: notionalUsd,
|
|
side: entrySide,
|
|
order_type: orderType,
|
|
fee_bps: feeBps,
|
|
tx_fee_usd_est: txFeeUsdEst,
|
|
expected_reprices_per_entry: expectedReprices,
|
|
},
|
|
dlob: best
|
|
? {
|
|
table: usedTable,
|
|
size_usd: best.size_usd,
|
|
side: best.side,
|
|
mid_price: best.mid_price,
|
|
vwap_price: best.vwap_price,
|
|
impact_bps: best.impact_bps,
|
|
fill_pct: best.fill_pct,
|
|
updated_at: best.updated_at,
|
|
}
|
|
: null,
|
|
breakdown: {
|
|
trade_fee_usd: tradeFeeUsd,
|
|
slippage_usd: slippageUsd,
|
|
tx_fee_usd: txFeeUsdEst,
|
|
expected_modify_usd: modifyCostUsd,
|
|
total_usd: totalUsd,
|
|
total_bps: totalBps,
|
|
breakeven_bps: totalBps,
|
|
},
|
|
},
|
|
cfg.corsOrigin
|
|
);
|
|
} catch (err) {
|
|
sendJson(res, 500, { ok: false, error: String(err?.message || err) }, cfg.corsOrigin);
|
|
}
|
|
return;
|
|
}
|
|
|
|
// Monitor a pushed contract (read scope).
|
|
// Best-effort: if bot tables are not present yet in Hasura schema, return a clear error.
|
|
const monitorMatch = pathname.match(/^\/v1\/contracts\/([0-9a-f-]{36})\/monitor$/i);
|
|
if (req.method === 'GET' && monitorMatch) {
|
|
const auth = await requireValidToken(cfg, req, 'read');
|
|
if (!auth.ok) {
|
|
sendJson(res, auth.status, { ok: false, error: auth.error }, cfg.corsOrigin);
|
|
return;
|
|
}
|
|
|
|
const contractId = monitorMatch[1];
|
|
const eventsLimit = clampSeriesLimit(url.searchParams.get('eventsLimit') || '2000', 2000);
|
|
const wantSeries = isTruthy(url.searchParams.get('series') || '');
|
|
const seriesMax = clampSeriesLimit(url.searchParams.get('seriesMax') || '600', 600);
|
|
|
|
const pickNum = (obj, keys) => {
|
|
if (!obj || typeof obj !== 'object') return 0;
|
|
for (const k of keys) {
|
|
const v = obj[k];
|
|
const n = parseNumeric(v);
|
|
if (n != null) return n;
|
|
}
|
|
return 0;
|
|
};
|
|
|
|
try {
|
|
const q = `
|
|
query ContractMonitor($id: uuid!, $limit: Int!) {
|
|
bot_contracts_by_pk(id: $id) { id }
|
|
bot_events(where: {contract_id: {_eq: $id}}, order_by: {created_at: asc}, limit: $limit) {
|
|
id
|
|
created_at
|
|
type
|
|
payload
|
|
}
|
|
}
|
|
`;
|
|
const data = await hasuraRequest(cfg, { admin: true }, q, { id: contractId, limit: eventsLimit });
|
|
const contract = data?.bot_contracts_by_pk || null;
|
|
const events = Array.isArray(data?.bot_events) ? data.bot_events : [];
|
|
|
|
const costs = {
|
|
tradeFeeUsd: 0,
|
|
txFeeUsd: 0,
|
|
slippageUsd: 0,
|
|
fundingUsd: 0,
|
|
realizedPnlUsd: 0,
|
|
totalCostsUsd: 0,
|
|
netPnlUsd: 0,
|
|
txCount: 0,
|
|
fillCount: 0,
|
|
cancelCount: 0,
|
|
modifyCount: 0,
|
|
errorCount: 0,
|
|
};
|
|
|
|
const series = [];
|
|
let cumTrade = 0;
|
|
let cumTx = 0;
|
|
let cumSlip = 0;
|
|
let cumFunding = 0;
|
|
let cumRealized = 0;
|
|
|
|
for (const ev of events) {
|
|
const payload = ev?.payload && typeof ev.payload === 'object' ? ev.payload : {};
|
|
const type = String(ev?.type || '').toLowerCase();
|
|
|
|
const tradeFeeUsd = pickNum(payload, ['trade_fee_usd', 'tradeFeeUsd', 'fee_usd', 'feeUsd']);
|
|
const txFeeUsd = pickNum(payload, ['tx_fee_usd', 'txFeeUsd', 'tx_usd', 'txUsd']);
|
|
const slippageUsd = pickNum(payload, ['slippage_usd', 'slippageUsd', 'impact_usd', 'impactUsd']);
|
|
const fundingUsd = pickNum(payload, ['funding_usd', 'fundingUsd']);
|
|
const realizedPnlUsd = pickNum(payload, ['realized_pnl_usd', 'realizedPnlUsd', 'pnl_usd', 'pnlUsd']);
|
|
|
|
const txCount = Math.max(
|
|
0,
|
|
Math.round(
|
|
pickNum(payload, ['tx_count', 'txCount', 'txs', 'txs_count']) ||
|
|
(txFeeUsd > 0 ? 1 : 0)
|
|
)
|
|
);
|
|
|
|
cumTrade += tradeFeeUsd;
|
|
cumTx += txFeeUsd;
|
|
cumSlip += slippageUsd;
|
|
cumFunding += fundingUsd;
|
|
cumRealized += realizedPnlUsd;
|
|
|
|
costs.tradeFeeUsd = cumTrade;
|
|
costs.txFeeUsd = cumTx;
|
|
costs.slippageUsd = cumSlip;
|
|
costs.fundingUsd = cumFunding;
|
|
costs.realizedPnlUsd = cumRealized;
|
|
costs.txCount += txCount;
|
|
|
|
const isFill = type.includes('fill');
|
|
const isCancel = type.includes('cancel');
|
|
const isModify = type.includes('modify') || type.includes('replace') || type.includes('reprice');
|
|
const isError = type.includes('error') || type.includes('panic');
|
|
|
|
if (isFill) costs.fillCount += 1;
|
|
if (isCancel) costs.cancelCount += 1;
|
|
if (isModify) costs.modifyCount += 1;
|
|
if (isError) costs.errorCount += 1;
|
|
|
|
if (wantSeries) {
|
|
const totalCostsUsd = cumTrade + cumTx + cumSlip + cumFunding;
|
|
const netPnlUsd = cumRealized - totalCostsUsd;
|
|
series.push({
|
|
ts: ev?.created_at || getIsoNow(),
|
|
tradeFeeUsd: cumTrade,
|
|
txFeeUsd: cumTx,
|
|
slippageUsd: cumSlip,
|
|
fundingUsd: cumFunding,
|
|
totalCostsUsd,
|
|
realizedPnlUsd: cumRealized,
|
|
netPnlUsd,
|
|
});
|
|
}
|
|
}
|
|
|
|
costs.totalCostsUsd = costs.tradeFeeUsd + costs.txFeeUsd + costs.slippageUsd + costs.fundingUsd;
|
|
costs.netPnlUsd = costs.realizedPnlUsd - costs.totalCostsUsd;
|
|
|
|
// Downsample to seriesMax if needed (keep last point).
|
|
let outSeries = null;
|
|
if (wantSeries) {
|
|
if (series.length <= seriesMax) {
|
|
outSeries = series;
|
|
} else {
|
|
const step = Math.max(1, Math.floor(series.length / seriesMax));
|
|
const sampled = [];
|
|
for (let i = 0; i < series.length; i += step) sampled.push(series[i]);
|
|
if (sampled[sampled.length - 1] !== series[series.length - 1]) sampled.push(series[series.length - 1]);
|
|
outSeries = sampled.slice(-seriesMax);
|
|
}
|
|
}
|
|
|
|
sendJson(
|
|
res,
|
|
200,
|
|
{
|
|
ok: true,
|
|
contract,
|
|
eventsCount: events.length,
|
|
costs,
|
|
series: outSeries,
|
|
},
|
|
cfg.corsOrigin
|
|
);
|
|
} catch (err) {
|
|
const msg = String(err?.message || err);
|
|
if (msg.includes('bot_contracts') || msg.includes('bot_events')) {
|
|
sendJson(res, 501, { ok: false, error: 'bot_tables_missing' }, cfg.corsOrigin);
|
|
return;
|
|
}
|
|
sendJson(res, 500, { ok: false, error: msg }, 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();
|