Installation

import { Connection } from '@solana/web3.js';

const url = process.env['SOLANA_RPC_URL'];
if (!url) throw new Error('SOLANA_RPC_URL is not set');

export const connection = new Connection(url, 'confirmed');

import { readCached, AllProvidersFailed } from '@rekt/1000x';

export async function currentSlot(): Promise<{ slot: number; stale: boolean }> {
  try {
    const hit = await readCached('slot', (c) => c.getSlot('confirmed'), 5_000);
    // Render the age. A number that is thirty seconds old and says so beats a spinner.
    return { slot: hit.value, stale: hit.stale };
  } catch (e) {
    if (e instanceof AllProvidersFailed) throw new Error(`every RPC provider failed: ${e.message}`);
    throw e;
  }
}

import { PROGRAM_ID, RUNG_FLOOR_BPS, TIERS, catalogue, configPda } from '@rekt/1000x';

export function selfTest(): string {
  const errors = catalogue(); // every refusal the program can raise, from the client IDL
  const config = configPda().address; // derived locally, never trusted from a web page
  return [
    `program         ${PROGRAM_ID}`,
    `config PDA      ${config.toBase58()}`,
    `rung floor      ${RUNG_FLOOR_BPS} bps`,
    `leverage tiers  ${TIERS.join(', ')}`,
    `error catalogue ${errors.length} entries, codes ${errors[0]?.code} and up`,
  ].join('\n');
}