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eosd.js
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eosd.js
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/* eslint-disable no-bitwise */
const fetch = require('isomorphic-fetch');
const { uniq, map, flatMap } = require('lodash');
const { eosd } = require('../../config/vars');
const { formatISO } = require('../utils/helpers');
fetch.Promise = require('bluebird');
const defaults = {
method: 'GET',
headers: {
'Content-Type': 'application/json',
},
};
// Grab the correct, sorted sceope from the list of messages
// intended for a transaction
const getScope = messages =>
uniq(
flatMap(messages, msg => [msg.code, ...map(msg.authorization, auth => auth.account)]),
).sort();
const request = async (path, options = {}) => {
const opts = { ...defaults, ...options };
const resp = await fetch(`${eosd.uri}${path}`, opts);
const json = await resp.json();
return { resp, json };
};
const postTransaction = async ({ messages, signatures, scope }) => {
const { resp, json } = await request('/v1/chain/get_info');
const msgList = Array.isArray(messages) ? messages : [messages];
const transaction = {
refBlockNum: json.head_block_num & 0xffff,
refBlockPrefix: new Buffer(json.head_block_id, 'hex').readUInt32LE(8),
expiration: formatISO(new Date(`${json.head_block_time}Z`)),
scope: scope ? uniq(scope).sort() : getScope(msgList),
messages: msgList,
signatures,
};
return request('/v1/chain/push_transaction', {
method: 'POST',
body: JSON.stringify(transaction),
});
};
module.exports = {
postTransaction,
};