SDK Methods

import { createLumeraClient } from "@lumera-protocol/sdk-js";
 
const client = await createLumeraClient({
  preset: "testnet",       // "testnet" | "mainnet"
  signer: wallet,          // OfflineSigner (CosmJS wallet or Keplr)
  address: "lumera1...",   // Sender address
  gasPrice: "0.025ulume",  // Gas price for fee estimation
});

const result = await client.Cascade.uploader.uploadFile(fileBytes, {
  fileName: "document.pdf",
  isPublic: true,
  expirationTime: "1742553600", // Unix timestamp (optional)
  taskOptions: {
    pollInterval: 2000,         // ms between status polls
    timeout: 300000,            // ms before timeout
  },
});

const { fileBytes, dataHash } = await client.Cascade.uploader.prepareFile(file);

const { actionId, authSignature } = await client.Cascade.uploader.registerAction(
  { fileBytes, dataHash },
  options
);

const authSig = await client.Cascade.uploader.makeAuthSignature(actionId, dataHash);

const uploadResult = await client.Cascade.uploader.sendFileToSupernodes(
  actionId,
  authSignature,
  fileBytes,
  { taskOptions: { pollInterval: 2000, timeout: 300000 } }
);

const stream: ReadableStream<Uint8Array> = await client.Cascade.downloader.download(actionId);

const stream = await client.Cascade.downloader.downloadFile({
  actionId: "your-action-id",
  taskOptions: {
    pollInterval: 2000,
    timeout: 120000,
  },
});

const stream = await client.Cascade.downloader.downloadPrivate(actionId);

const params = await client.Blockchain.getActionParams();
// { max_raptor_q_symbols: number, ... }

const action = await client.Blockchain.getAction(actionId);
// { creator, actionType, dataHash, state, ... }

const fee = await client.Blockchain.getActionFee(fileSizeBytes);
// { fee: string } in ulume

const nodes = await client.Blockchain.getSupernodes();

import { getKeplrSigner } from "@lumera-protocol/sdk-js";
 
const signer = await getKeplrSigner("lumera-testnet-2");

import { getLeapSigner } from "@lumera-protocol/sdk-js";
 
const signer = await getLeapSigner("lumera-testnet-2");