import axios, { AxiosError } from 'axios'
import type {
HistoryBar,
Instrument,
Tick,
MethodsMeta,
VolatilityMethodsMeta,
DenoiseMethodsMeta,
DimredMethodsMeta,
WaveletsResponse,
SktimeEstimatorsResponse,
ForecastPayload,
VolatilityPayload,
PivotResponse,
SupportResistanceResponse,
DenoiseSpecUI,
ForecastPriceBody,
ForecastVolBody,
BacktestBody,
BacktestResult,
} from '../types'
// Use environment variable or default to empty (same origin)
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const baseURL = (typeof import.meta !== 'undefined' && (import.meta as any).env?.VITE_API_BASE) || ''
export const api = axios.create({ baseURL })
/**
* Standardized error extraction from axios errors.
*/
export function getErrorMessage(error: unknown): string {
if (error instanceof AxiosError) {
return error.response?.data?.detail || error.response?.data?.message || error.message
}
if (error instanceof Error) {
return error.message
}
return 'An unknown error occurred'
}
// ============================================================================
// Timeframes & Instruments
// ============================================================================
export async function getTimeframes(): Promise<string[]> {
const { data } = await api.get<{ timeframes: string[] }>('/api/timeframes')
return data.timeframes ?? []
}
export async function searchInstruments(search?: string, limit?: number): Promise<Instrument[]> {
const { data } = await api.get<{ items: Instrument[] }>('/api/instruments', {
params: { search, limit },
})
return data.items ?? []
}
// ============================================================================
// History Data
// ============================================================================
export type HistoryParams = {
symbol: string
timeframe: string
limit: number
start?: string
end?: string
denoise?: DenoiseSpecUI
include_incomplete?: boolean
}
export type HistoryResponse = {
success: boolean
bars: HistoryBar[]
meta?: {
server_tz_offset: number
}
}
export async function getHistory(params: HistoryParams): Promise<HistoryResponse> {
const query: Record<string, unknown> = {
symbol: params.symbol,
timeframe: params.timeframe,
limit: params.limit,
start: params.start,
end: params.end,
include_incomplete: params.include_incomplete,
}
const dn = params.denoise
if (dn?.method) {
query.denoise_method = dn.method
const extras: Record<string, unknown> = {}
if (dn.params) extras.params = dn.params
if (dn.columns) extras.columns = dn.columns
if (dn.when) extras.when = dn.when
if (dn.causality) extras.causality = dn.causality
if (typeof dn.keep_original === 'boolean') extras.keep_original = dn.keep_original
if (Object.keys(extras).length) {
query.denoise_params = JSON.stringify(extras)
}
}
const { data } = await api.get<{ bars: HistoryBar[], meta?: { server_tz_offset: number } }>('/api/history', { params: query })
return {
success: true,
bars: data.bars ?? [],
meta: data.meta
}
}
export async function getTick(symbol: string): Promise<Tick> {
const { data } = await api.get<Tick>('/api/tick', { params: { symbol } })
return data
}
// ============================================================================
// Forecast Methods Metadata
// ============================================================================
export async function getMethods(): Promise<MethodsMeta> {
const { data } = await api.get<MethodsMeta>('/api/methods')
return data
}
export async function getVolatilityMethods(): Promise<VolatilityMethodsMeta> {
const { data } = await api.get<VolatilityMethodsMeta>('/api/volatility/methods')
return data
}
export async function getDenoiseMethods(): Promise<DenoiseMethodsMeta> {
const { data } = await api.get<DenoiseMethodsMeta>('/api/denoise/methods')
return data
}
export async function getDimredMethods(): Promise<DimredMethodsMeta> {
const { data } = await api.get<DimredMethodsMeta>('/api/dimred/methods')
return data
}
export async function getWavelets(): Promise<WaveletsResponse> {
const { data } = await api.get<WaveletsResponse>('/api/denoise/wavelets')
return data
}
export async function getSktimeEstimators(): Promise<SktimeEstimatorsResponse> {
const { data } = await api.get<SktimeEstimatorsResponse>('/api/sktime/estimators')
return data
}
// ============================================================================
// Forecasting
// ============================================================================
export async function forecastPrice(body: ForecastPriceBody): Promise<ForecastPayload> {
const { data } = await api.post<ForecastPayload>('/api/forecast/price', body)
return data
}
export async function forecastVolatility(body: ForecastVolBody): Promise<VolatilityPayload> {
const { data } = await api.post<VolatilityPayload>('/api/forecast/volatility', body)
return data
}
export async function runBacktest(body: BacktestBody): Promise<BacktestResult> {
const { data } = await api.post<BacktestResult>('/api/backtest', body)
return data
}
// ============================================================================
// Technical Analysis
// ============================================================================
export type PivotParams = {
symbol: string
timeframe: string
method?: 'classic' | 'fibonacci' | 'camarilla' | 'woodie' | 'demark'
}
export async function getPivots(params: PivotParams): Promise<PivotResponse> {
const { data } = await api.get<PivotResponse>('/api/pivots', { params })
return data
}
export type SupportResistanceParams = {
symbol: string
timeframe: string
limit?: number
tolerance_pct?: number
min_touches?: number
max_levels?: number
}
export async function getSupportResistance(
params: SupportResistanceParams
): Promise<SupportResistanceResponse> {
const { data } = await api.get<SupportResistanceResponse>('/api/support-resistance', { params })
return data
}
// ============================================================================
// Health Check
// ============================================================================
export async function healthCheck(): Promise<{ service: string; status: string }> {
const { data } = await api.get<{ service: string; status: string }>('/')
return data
}
