send.js

import {Buffer} from "@onflow/rlp"
import {send as defaultSend} from "@onflow/transport-http"
import {initInteraction, pipe} from "../interaction/interaction"
import * as ixModule from "../interaction/interaction"
import {invariant} from "../build/build-invariant.js"
import {response} from "../response/response"
import {config} from "@onflow/config"
import {resolve as defaultResolve} from "../resolve/resolve.js"

/**
 * @description - Sends arbitrary scripts, transactions, and requests to Flow
 * @param {Array.<Function | false> | Function | false} args - An array of functions that take interaction and return interaction
 * @param {object} opts - Optional parameters
 * @returns {Promise<*>} - A promise that resolves to a response
 */
export const send = async (args = [], opts = {}) => {
  const sendFn = await config.first(
    ["sdk.transport", "sdk.send"],
    opts.send || defaultSend
  )

  invariant(
    sendFn,
    `Required value for sdk.transport is not defined in config. See: ${"https://github.com/onflow/fcl-js/blob/master/packages/sdk/CHANGELOG.md#0057-alpha1----2022-01-21"}`
  )

  const resolveFn = await config.first(
    ["sdk.resolve"],
    opts.resolve || defaultResolve
  )

  opts.node = opts.node || (await config().get("accessNode.api"))

  if (Array.isArray(args)) args = pipe(initInteraction(), args)
  return sendFn(
    await resolveFn(args),
    {config, response, ix: ixModule, Buffer},
    opts
  )
}