Files
auto-trade/lib/kis/domestic.ts

865 lines
24 KiB
TypeScript

import type {
DashboardChartTimeframe,
DashboardStockItem,
StockCandlePoint,
} from "@/features/dashboard/types/dashboard.types";
import type { KisCredentialInput } from "@/lib/kis/config";
import { kisGet } from "@/lib/kis/client";
/**
* @file lib/kis/domestic.ts
* @description KIS 국내주식(현재가/일봉) 조회와 대시보드 모델 변환
*/
interface KisDomesticQuoteOutput {
hts_kor_isnm?: string;
rprs_mrkt_kor_name?: string;
bstp_kor_isnm?: string;
stck_prpr?: string;
prdy_vrss?: string;
prdy_vrss_sign?: string;
prdy_ctrt?: string;
stck_oprc?: string;
stck_hgpr?: string;
stck_lwpr?: string;
stck_sdpr?: string;
stck_prdy_clpr?: string;
acml_vol?: string;
}
interface KisDomesticCcnlOutput {
stck_prpr?: string;
prdy_vrss?: string;
prdy_vrss_sign?: string;
prdy_ctrt?: string;
cntg_vol?: string;
}
interface KisDomesticOvertimePriceOutput {
ovtm_untp_prpr?: string;
ovtm_untp_prdy_vrss?: string;
ovtm_untp_prdy_vrss_sign?: string;
ovtm_untp_prdy_ctrt?: string;
ovtm_untp_vol?: string;
ovtm_untp_oprc?: string;
ovtm_untp_hgpr?: string;
ovtm_untp_lwpr?: string;
}
interface KisDomesticDailyPriceOutput {
stck_bsop_date?: string;
stck_oprc?: string;
stck_hgpr?: string;
stck_lwpr?: string;
stck_clpr?: string;
acml_vol?: string;
}
interface KisDomesticItemChartRow {
stck_bsop_date?: string;
stck_cntg_hour?: string;
stck_oprc?: string;
stck_hgpr?: string;
stck_lwpr?: string;
stck_clpr?: string;
stck_prpr?: string;
cntg_vol?: string;
acml_vol?: string;
}
export interface KisDomesticOrderBookOutput {
stck_prpr?: string;
total_askp_rsqn?: string;
total_bidp_rsqn?: string;
askp1?: string;
askp2?: string;
askp3?: string;
askp4?: string;
askp5?: string;
askp6?: string;
askp7?: string;
askp8?: string;
askp9?: string;
askp10?: string;
bidp1?: string;
bidp2?: string;
bidp3?: string;
bidp4?: string;
bidp5?: string;
bidp6?: string;
bidp7?: string;
bidp8?: string;
bidp9?: string;
bidp10?: string;
askp_rsqn1?: string;
askp_rsqn2?: string;
askp_rsqn3?: string;
askp_rsqn4?: string;
askp_rsqn5?: string;
askp_rsqn6?: string;
askp_rsqn7?: string;
askp_rsqn8?: string;
askp_rsqn9?: string;
askp_rsqn10?: string;
bidp_rsqn1?: string;
bidp_rsqn2?: string;
bidp_rsqn3?: string;
bidp_rsqn4?: string;
bidp_rsqn5?: string;
bidp_rsqn6?: string;
bidp_rsqn7?: string;
bidp_rsqn8?: string;
bidp_rsqn9?: string;
bidp_rsqn10?: string;
}
interface DashboardStockFallbackMeta {
name?: string;
market?: "KOSPI" | "KOSDAQ";
}
export type DomesticMarketPhase = "regular" | "afterHours";
export type DomesticPriceSource =
| "inquire-price"
| "inquire-ccnl"
| "inquire-overtime-price";
interface DomesticOverviewResult {
stock: DashboardStockItem;
priceSource: DomesticPriceSource;
marketPhase: DomesticMarketPhase;
}
/**
* 국내주식 현재가 조회
* @param symbol 6자리 종목코드
* @param credentials 사용자 입력 키
* @returns KIS 현재가 output
*/
export async function getDomesticQuote(
symbol: string,
credentials?: KisCredentialInput,
) {
const response = await kisGet<KisDomesticQuoteOutput>(
"/uapi/domestic-stock/v1/quotations/inquire-price",
"FHKST01010100",
{
FID_COND_MRKT_DIV_CODE: resolvePriceMarketDivCode(),
FID_INPUT_ISCD: symbol,
},
credentials,
);
return response.output ?? {};
}
/**
* 국내주식 일자별 시세 조회
* @param symbol 6자리 종목코드
* @param credentials 사용자 입력 키
* @returns KIS 일봉 output 배열
*/
export async function getDomesticDailyPrice(
symbol: string,
credentials?: KisCredentialInput,
) {
const response = await kisGet<KisDomesticDailyPriceOutput[]>(
"/uapi/domestic-stock/v1/quotations/inquire-daily-price",
"FHKST01010400",
{
FID_COND_MRKT_DIV_CODE: "J",
FID_INPUT_ISCD: symbol,
FID_PERIOD_DIV_CODE: "D",
FID_ORG_ADJ_PRC: "1",
},
credentials,
);
return Array.isArray(response.output) ? response.output : [];
}
/**
* 국내주식 현재가 체결 조회
* @param symbol 6자리 종목코드
* @param credentials 사용자 입력 키
* @returns KIS 체결 output
* @see app/api/kis/domestic/overview/route.ts GET - 대시보드 상세 응답에서 장중 가격 우선 소스
*/
export async function getDomesticConclusion(
symbol: string,
credentials?: KisCredentialInput,
) {
const response = await kisGet<
KisDomesticCcnlOutput | KisDomesticCcnlOutput[]
>(
"/uapi/domestic-stock/v1/quotations/inquire-ccnl",
"FHKST01010300",
{
FID_COND_MRKT_DIV_CODE: resolvePriceMarketDivCode(),
FID_INPUT_ISCD: symbol,
},
credentials,
);
const output = response.output;
if (Array.isArray(output)) return output[0] ?? {};
return output ?? {};
}
/**
* 국내주식 시간외 현재가 조회
* @param symbol 6자리 종목코드
* @param credentials 사용자 입력 키
* @returns KIS 시간외 현재가 output
* @see app/api/kis/domestic/overview/route.ts GET - 대시보드 상세 응답에서 장외 가격 우선 소스
*/
export async function getDomesticOvertimePrice(
symbol: string,
credentials?: KisCredentialInput,
) {
const response = await kisGet<KisDomesticOvertimePriceOutput>(
"/uapi/domestic-stock/v1/quotations/inquire-overtime-price",
"FHPST02300000",
{
FID_COND_MRKT_DIV_CODE: "J",
FID_INPUT_ISCD: symbol,
},
credentials,
);
return response.output ?? {};
}
/**
* 국내주식 호가(10단계) 조회
* @param symbol 6자리 종목코드
* @param credentials 사용자 입력 키
* @returns KIS 호가 output
*/
export async function getDomesticOrderBook(
symbol: string,
credentials?: KisCredentialInput,
) {
const response = await kisGet<KisDomesticOrderBookOutput>(
"/uapi/domestic-stock/v1/quotations/inquire-asking-price-exp-ccn",
"FHKST01010200",
{
FID_COND_MRKT_DIV_CODE: resolvePriceMarketDivCode(),
FID_INPUT_ISCD: symbol,
},
credentials,
);
if (response.output && typeof response.output === "object") {
return response.output;
}
if (response.output1 && typeof response.output1 === "object") {
return response.output1 as KisDomesticOrderBookOutput;
}
return {};
}
/**
* 현재가 + 일봉을 대시보드 모델로 변환
* @param symbol 6자리 종목코드
* @param fallbackMeta 보정 메타(종목명/시장)
* @param credentials 사용자 입력 키
* @returns DashboardStockItem
*/
export async function getDomesticOverview(
symbol: string,
fallbackMeta?: DashboardStockFallbackMeta,
credentials?: KisCredentialInput,
): Promise<DomesticOverviewResult> {
const marketPhase = getDomesticMarketPhaseInKst();
const emptyQuote: KisDomesticQuoteOutput = {};
const emptyDaily: KisDomesticDailyPriceOutput[] = [];
const emptyCcnl: KisDomesticCcnlOutput = {};
const emptyOvertime: KisDomesticOvertimePriceOutput = {};
const [quote, daily, ccnl, overtime] = await Promise.all([
getDomesticQuote(symbol, credentials).catch(() => emptyQuote),
getDomesticDailyPrice(symbol, credentials).catch(() => emptyDaily),
getDomesticConclusion(symbol, credentials).catch(() => emptyCcnl),
marketPhase === "afterHours"
? getDomesticOvertimePrice(symbol, credentials).catch(() => emptyOvertime)
: Promise.resolve(emptyOvertime),
]);
const currentPrice =
firstDefinedNumber(
toOptionalNumber(ccnl.stck_prpr),
toOptionalNumber(overtime.ovtm_untp_prpr),
toOptionalNumber(quote.stck_prpr),
) ?? 0;
const currentPriceSource = resolveCurrentPriceSource(
marketPhase,
overtime,
ccnl,
quote,
);
const rawChange =
firstDefinedNumber(
toOptionalNumber(ccnl.prdy_vrss),
toOptionalNumber(overtime.ovtm_untp_prdy_vrss),
toOptionalNumber(quote.prdy_vrss),
) ?? 0;
const signCode = firstDefinedString(
ccnl.prdy_vrss_sign,
overtime.ovtm_untp_prdy_vrss_sign,
quote.prdy_vrss_sign,
);
const change = normalizeSignedValue(rawChange, signCode);
const rawChangeRate =
firstDefinedNumber(
toOptionalNumber(ccnl.prdy_ctrt),
toOptionalNumber(overtime.ovtm_untp_prdy_ctrt),
toOptionalNumber(quote.prdy_ctrt),
) ?? 0;
const changeRate = normalizeSignedValue(rawChangeRate, signCode);
const prevClose = firstPositive(
toNumber(quote.stck_sdpr),
toNumber(quote.stck_prdy_clpr),
Math.max(currentPrice - change, 0),
);
const candles = toCandles(daily, currentPrice);
return {
stock: {
symbol,
name: quote.hts_kor_isnm?.trim() || fallbackMeta?.name || symbol,
market: resolveMarket(
quote.rprs_mrkt_kor_name,
quote.bstp_kor_isnm,
fallbackMeta?.market,
),
currentPrice,
change,
changeRate,
open: firstPositive(
toNumber(overtime.ovtm_untp_oprc),
toNumber(quote.stck_oprc),
currentPrice,
),
high: firstPositive(
toNumber(overtime.ovtm_untp_hgpr),
toNumber(quote.stck_hgpr),
currentPrice,
),
low: firstPositive(
toNumber(overtime.ovtm_untp_lwpr),
toNumber(quote.stck_lwpr),
currentPrice,
),
prevClose,
volume: firstPositive(
toNumber(overtime.ovtm_untp_vol),
toNumber(quote.acml_vol),
toNumber(ccnl.cntg_vol),
),
candles,
},
priceSource: currentPriceSource,
marketPhase,
};
}
function toNumber(value?: string) {
if (!value) return 0;
const normalized = value.replaceAll(",", "").trim();
if (!normalized) return 0;
const parsed = Number(normalized);
return Number.isFinite(parsed) ? parsed : 0;
}
function toOptionalNumber(value?: string) {
if (!value) return undefined;
const normalized = value.replaceAll(",", "").trim();
if (!normalized) return undefined;
const parsed = Number(normalized);
return Number.isFinite(parsed) ? parsed : undefined;
}
function normalizeSignedValue(value: number, signCode?: string) {
const abs = Math.abs(value);
if (signCode === "4" || signCode === "5") return -abs;
if (signCode === "1" || signCode === "2") return abs;
return value;
}
function resolveMarket(...values: Array<string | undefined>) {
const merged = values.filter(Boolean).join(" ");
if (merged.includes("코스닥") || merged.toUpperCase().includes("KOSDAQ"))
return "KOSDAQ" as const;
return "KOSPI" as const;
}
function toCandles(
rows: KisDomesticDailyPriceOutput[],
currentPrice: number,
): StockCandlePoint[] {
const parsed = rows
.map((row) => ({
date: row.stck_bsop_date ?? "",
open: toNumber(row.stck_oprc),
high: toNumber(row.stck_hgpr),
low: toNumber(row.stck_lwpr),
close: toNumber(row.stck_clpr),
volume: toNumber(row.acml_vol),
}))
.filter((item) => item.date.length === 8 && item.close > 0)
.sort((a, b) => a.date.localeCompare(b.date))
.slice(-80)
.map((item) => ({
time: formatDate(item.date),
price: item.close,
open: item.open > 0 ? item.open : item.close,
high: item.high > 0 ? item.high : item.close,
low: item.low > 0 ? item.low : item.close,
close: item.close,
volume: item.volume,
}));
if (parsed.length > 0) return parsed;
const now = new Date();
const mm = `${now.getMonth() + 1}`.padStart(2, "0");
const dd = `${now.getDate()}`.padStart(2, "0");
const safePrice = Math.max(currentPrice, 0);
return [
{
time: `${mm}/${dd}`,
timestamp: Math.floor(now.getTime() / 1000),
price: safePrice,
open: safePrice,
high: safePrice,
low: safePrice,
close: safePrice,
volume: 0,
},
];
}
function formatDate(date: string) {
return `${date.slice(4, 6)}/${date.slice(6, 8)}`;
}
function getDomesticMarketPhaseInKst(now = new Date()): DomesticMarketPhase {
const parts = new Intl.DateTimeFormat("en-US", {
timeZone: "Asia/Seoul",
weekday: "short",
hour: "2-digit",
minute: "2-digit",
hour12: false,
}).formatToParts(now);
const partMap = new Map(parts.map((part) => [part.type, part.value]));
const weekday = partMap.get("weekday");
const hour = Number(partMap.get("hour") ?? "0");
const minute = Number(partMap.get("minute") ?? "0");
const totalMinutes = hour * 60 + minute;
if (weekday === "Sat" || weekday === "Sun") return "afterHours";
if (totalMinutes >= 9 * 60 && totalMinutes < 15 * 60 + 30) return "regular";
return "afterHours";
}
function firstDefinedNumber(...values: Array<number | undefined>) {
return values.find((value) => value !== undefined);
}
function firstDefinedString(...values: Array<string | undefined>) {
return values.find((value) => Boolean(value));
}
function resolveCurrentPriceSource(
marketPhase: DomesticMarketPhase,
overtime: KisDomesticOvertimePriceOutput,
ccnl: KisDomesticCcnlOutput,
quote: KisDomesticQuoteOutput,
): DomesticPriceSource {
const hasOvertimePrice =
toOptionalNumber(overtime.ovtm_untp_prpr) !== undefined;
const hasCcnlPrice = toOptionalNumber(ccnl.stck_prpr) !== undefined;
const hasQuotePrice = toOptionalNumber(quote.stck_prpr) !== undefined;
if (marketPhase === "afterHours") {
if (hasOvertimePrice) return "inquire-overtime-price";
if (hasCcnlPrice) return "inquire-ccnl";
return "inquire-price";
}
if (hasCcnlPrice) return "inquire-ccnl";
if (hasQuotePrice) return "inquire-price";
return "inquire-price";
}
function resolvePriceMarketDivCode() {
return "J";
}
function firstPositive(...values: number[]) {
return values.find((value) => value > 0) ?? 0;
}
export interface DomesticChartResult {
candles: StockCandlePoint[];
nextCursor: string | null;
hasMore: boolean;
}
interface MinuteCursor {
date: string;
hour: string;
}
function parseOutput2Rows(envelope: {
output2?: unknown;
output1?: unknown;
output?: unknown;
}) {
if (Array.isArray(envelope.output2)) {
return envelope.output2 as KisDomesticItemChartRow[];
}
if (envelope.output2 && typeof envelope.output2 === "object") {
return [envelope.output2 as KisDomesticItemChartRow];
}
if (Array.isArray(envelope.output)) {
return envelope.output as KisDomesticItemChartRow[];
}
if (envelope.output && typeof envelope.output === "object") {
return [envelope.output as KisDomesticItemChartRow];
}
if (envelope.output1 && typeof envelope.output1 === "object") {
return [envelope.output1 as KisDomesticItemChartRow];
}
return [];
}
function parseDayCandleRow(
row: KisDomesticItemChartRow,
): StockCandlePoint | null {
const date = readRowString(row, "stck_bsop_date", "STCK_BSOP_DATE");
if (!/^\d{8}$/.test(date)) return null;
const close = toNumber(
readRowString(row, "stck_clpr", "STCK_CLPR") ||
readRowString(row, "stck_prpr", "STCK_PRPR"),
);
if (close <= 0) return null;
const open = toNumber(readRowString(row, "stck_oprc", "STCK_OPRC")) || close;
const high =
toNumber(readRowString(row, "stck_hgpr", "STCK_HGPR")) ||
Math.max(open, close);
const low =
toNumber(readRowString(row, "stck_lwpr", "STCK_LWPR")) ||
Math.min(open, close);
const volume = toNumber(
readRowString(row, "acml_vol", "ACML_VOL") ||
readRowString(row, "cntg_vol", "CNTG_VOL"),
);
return {
time: formatDate(date),
timestamp: toKstTimestamp(date, "090000"),
price: close,
open,
high,
low,
close,
volume,
};
}
function parseMinuteCandleRow(
row: KisDomesticItemChartRow,
minuteBucket: number,
): StockCandlePoint | null {
let date = readRowString(row, "stck_bsop_date", "STCK_BSOP_DATE");
const rawTime = readRowString(row, "stck_cntg_hour", "STCK_CNTG_HOUR");
const time = /^\d{6}$/.test(rawTime)
? rawTime
: /^\d{4}$/.test(rawTime)
? `${rawTime}00`
: "";
// 날짜가 없는 경우(당일 분봉 등) 오늘 날짜 사용
if (!/^\d{8}$/.test(date)) {
date = nowYmdInKst();
}
if (!/^\d{8}$/.test(date) || !/^\d{6}$/.test(time)) return null;
const close = toNumber(
readRowString(row, "stck_prpr", "STCK_PRPR") ||
readRowString(row, "stck_clpr", "STCK_CLPR"),
);
if (close <= 0) return null;
const open = toNumber(readRowString(row, "stck_oprc", "STCK_OPRC")) || close;
const high =
toNumber(readRowString(row, "stck_hgpr", "STCK_HGPR")) ||
Math.max(open, close);
const low =
toNumber(readRowString(row, "stck_lwpr", "STCK_LWPR")) ||
Math.min(open, close);
const volume = toNumber(
readRowString(row, "cntg_vol", "CNTG_VOL") ||
readRowString(row, "acml_vol", "ACML_VOL"),
);
const bucketed = alignTimeToMinuteBucket(time, minuteBucket);
return {
time: `${bucketed.slice(0, 2)}:${bucketed.slice(2, 4)}`,
timestamp: toKstTimestamp(date, bucketed),
price: close,
open,
high,
low,
close,
volume,
};
}
function mergeCandlesByTimestamp(rows: StockCandlePoint[]) {
const byTs = new Map<number, StockCandlePoint>();
for (const row of rows) {
if (!row.timestamp) continue;
const prev = byTs.get(row.timestamp);
if (!prev) {
byTs.set(row.timestamp, row);
continue;
}
byTs.set(row.timestamp, {
...prev,
price: row.close ?? row.price,
close: row.close ?? row.price,
high: Math.max(prev.high ?? prev.price, row.high ?? row.price),
low: Math.min(prev.low ?? prev.price, row.low ?? row.price),
volume: (prev.volume ?? 0) + (row.volume ?? 0),
});
}
return [...byTs.values()].sort(
(a, b) => (a.timestamp ?? 0) - (b.timestamp ?? 0),
);
}
function alignTimeToMinuteBucket(hhmmss: string, minuteBucket: number) {
if (/^\d{4}$/.test(hhmmss)) {
hhmmss = `${hhmmss}00`;
}
if (minuteBucket <= 1) return hhmmss;
const hh = Number(hhmmss.slice(0, 2));
const mm = Number(hhmmss.slice(2, 4));
const alignedMinute = Math.floor(mm / minuteBucket) * minuteBucket;
return `${hh.toString().padStart(2, "0")}${alignedMinute.toString().padStart(2, "0")}00`;
}
function readRowString(row: KisDomesticItemChartRow, ...keys: string[]) {
const record = row as Record<string, unknown>;
for (const key of keys) {
const value = record[key];
if (typeof value === "string" && value.trim()) {
return value.trim();
}
}
return "";
}
function toKstTimestamp(yyyymmdd: string, hhmmss: string) {
const year = Number(yyyymmdd.slice(0, 4));
const month = Number(yyyymmdd.slice(4, 6));
const day = Number(yyyymmdd.slice(6, 8));
const hh = Number(hhmmss.slice(0, 2));
const mm = Number(hhmmss.slice(2, 4));
const ss = Number(hhmmss.slice(4, 6));
return Math.floor(Date.UTC(year, month - 1, day, hh - 9, mm, ss) / 1000);
}
function toYmd(date: Date) {
const year = date.getUTCFullYear();
const month = `${date.getUTCMonth() + 1}`.padStart(2, "0");
const day = `${date.getUTCDate()}`.padStart(2, "0");
return `${year}${month}${day}`;
}
function shiftYmd(ymd: string, days: number) {
const year = Number(ymd.slice(0, 4));
const month = Number(ymd.slice(4, 6));
const day = Number(ymd.slice(6, 8));
const utc = new Date(Date.UTC(year, month - 1, day));
utc.setUTCDate(utc.getUTCDate() + days);
return toYmd(utc);
}
function nowYmdInKst() {
const now = new Date();
const formatter = new Intl.DateTimeFormat("en-CA", {
timeZone: "Asia/Seoul",
year: "numeric",
month: "2-digit",
day: "2-digit",
});
const parts = formatter.formatToParts(now);
const map = new Map(parts.map((p) => [p.type, p.value]));
return `${map.get("year")}${map.get("month")}${map.get("day")}`;
}
function nowHmsInKst() {
const now = new Date();
const formatter = new Intl.DateTimeFormat("en-US", {
timeZone: "Asia/Seoul",
hour: "2-digit",
minute: "2-digit",
second: "2-digit",
hour12: false,
});
const parts = formatter.formatToParts(now);
const map = new Map(parts.map((p) => [p.type, p.value]));
return `${map.get("hour")}${map.get("minute")}${map.get("second")}`;
}
function minutesForTimeframe(timeframe: DashboardChartTimeframe) {
if (timeframe === "30m") return 30;
if (timeframe === "1h") return 60;
return 1;
}
export async function getDomesticChart(
symbol: string,
timeframe: DashboardChartTimeframe,
credentials?: KisCredentialInput,
cursor?: string,
): Promise<DomesticChartResult> {
if (timeframe === "1d" || timeframe === "1w") {
const endDate = cursor && /^\d{8}$/.test(cursor) ? cursor : nowYmdInKst();
const startDate = shiftYmd(endDate, timeframe === "1w" ? -700 : -365);
const period = timeframe === "1w" ? "W" : "D";
const response = await kisGet<unknown>(
"/uapi/domestic-stock/v1/quotations/inquire-daily-itemchartprice",
"FHKST03010100",
{
FID_COND_MRKT_DIV_CODE: "J",
FID_INPUT_ISCD: symbol,
FID_INPUT_DATE_1: startDate,
FID_INPUT_DATE_2: endDate,
FID_PERIOD_DIV_CODE: period,
FID_ORG_ADJ_PRC: "1",
},
credentials,
);
const parsed = parseOutput2Rows(response)
.map(parseDayCandleRow)
.filter((item): item is StockCandlePoint => Boolean(item))
.sort((a, b) => (a.timestamp ?? 0) - (b.timestamp ?? 0));
const oldest = parsed[0];
const nextCursor =
parsed.length >= 95 && oldest?.timestamp
? shiftYmd(
new Date(oldest.timestamp * 1000)
.toISOString()
.slice(0, 10)
.replaceAll("-", ""),
-1,
)
: null;
return {
candles: parsed,
hasMore: Boolean(nextCursor),
nextCursor,
};
}
// 분봉 조회 (1m, 30m, 1h)
// inquire-time-itemchartprice (FHKST03010200) 사용
// FID_PW_DATA_INCU_YN="Y" 설정 시 과거 데이터 포함하여 조회 가능
const minuteCursor = resolveMinuteCursor(cursor);
const minuteBucket = minutesForTimeframe(timeframe);
const response = await kisGet<unknown>(
"/uapi/domestic-stock/v1/quotations/inquire-time-itemchartprice",
"FHKST03010200",
{
FID_COND_MRKT_DIV_CODE: "J",
FID_INPUT_ISCD: symbol,
FID_INPUT_HOUR_1: minuteCursor.hour, // 조회 시작 시간 (HHMMSS)
// FID_INPUT_DATE_1: minuteCursor.date, // 일자별 조회시에만 필요할 수 있으나, 당일분봉조회에는 보통 시간만으로 동작하거나 오늘 기준임. 문서상 필수 아닐 수 있음 확인 필요.
// 하지만 inquire-time-itemchartprice에는 FID_INPUT_DATE_1 파라미터가 명시되지 않은 경우가 많음.
// API 문서를 확인해보면 inquire-time-itemchartprice는 입력 시간이 종료 시간 기준임.
FID_ETC_CLS_CODE: "",
FID_PW_DATA_INCU_YN: "Y", // 과거 데이터 포함
},
credentials,
);
const rows = parseOutput2Rows(response);
const parsed = rows
.map((row) => parseMinuteCandleRow(row, minuteBucket))
.filter((item): item is StockCandlePoint => Boolean(item));
const merged = mergeCandlesByTimestamp(parsed);
// 다음 커서 계산
const oldest = parsed
.filter((item) => typeof item.timestamp === "number")
.sort((a, b) => (a.timestamp ?? 0) - (b.timestamp ?? 0))[0];
// 120건(통상 최대치) 미만이면 더 이상 데이터가 없다고 판단할 수도 있으나,
// 안전하게 oldest timestamp 기준 1분 전을 다음 커서로 설정
const nextCursor =
rows.length >= 1 && oldest?.timestamp
? toMinuteCursorFromTimestamp(oldest.timestamp - 60)
: null;
return {
candles: merged,
hasMore: rows.length > 0 && Boolean(nextCursor), // 데이터가 있으면 더 있을 가능성 열어둠
nextCursor,
};
}
function resolveMinuteCursor(cursor?: string): MinuteCursor {
if (cursor && /^\d{14}$/.test(cursor)) {
return {
date: cursor.slice(0, 8),
hour: cursor.slice(8, 14),
};
}
return {
date: nowYmdInKst(),
hour: nowHmsInKst(),
};
}
function toMinuteCursorFromTimestamp(timestamp: number) {
const kstDate = new Date((timestamp + 9 * 3600) * 1000);
const year = `${kstDate.getUTCFullYear()}`;
const month = `${kstDate.getUTCMonth() + 1}`.padStart(2, "0");
const day = `${kstDate.getUTCDate()}`.padStart(2, "0");
const hour = `${kstDate.getUTCHours()}`.padStart(2, "0");
const minute = `${kstDate.getUTCMinutes()}`.padStart(2, "0");
const second = `${kstDate.getUTCSeconds()}`.padStart(2, "0");
return `${year}${month}${day}${hour}${minute}${second}`;
}