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export interface ApiEnvelope<T> {
code: number
message: string
data?: T | null
error?: string | null
error_code?: string | null
request_id?: string
}
export class ApiFailure extends Error {
readonly code: number
readonly errorCode?: string | null
readonly requestId?: string | null
constructor(message: string, code: number, errorCode?: string | null, requestId?: string | null) {
super(message)
this.name = 'ApiFailure'
this.code = code
this.errorCode = errorCode
this.requestId = requestId
}
}
export async function unwrapApi<T>(
method: PromiseLike<
| ApiEnvelope<unknown>
| {
code: number
message: string
data?: unknown
error?: string | null
error_code?: string | null
request_id?: string
}
>,
): Promise<T> {
const res = (await method) as ApiEnvelope<unknown>
if (res.code !== 200) {
throw new ApiFailure(res.error || res.message || 'request failed', res.code, res.error_code, res.request_id)
}
return res.data as T
}