62 lines
1.2 KiB
JavaScript
62 lines
1.2 KiB
JavaScript
const Block = require('../../models/block.js');
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const logger = require('../logger');
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const config = require('../../config');
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// move to config
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const MAX_BLOCKS = 50;
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const blockTemplate = new Block();
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function getBlocks(params, options, limit, cb) {
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const defaultOptions = { _id: 0 };
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Object.assign(defaultOptions, options);
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if (!Number.isInteger(limit)) {
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limit = 1;
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}
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if (limit > MAX_BLOCKS) {
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limit = MAX_BLOCKS;
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}
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if (limit < 1) {
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limit = 1;
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}
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Block.find(
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params,
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defaultOptions,
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(err, blocks) => {
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if (err) {
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logger.log('error',
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`getBlocks: ${err}`);
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return cb(err);
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}
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if (!blocks.length > 0) {
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return cb({err: 'Block not found'});
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}
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return cb(null, blocks);
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})
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.sort({ height: -1 })
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.limit(limit);
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}
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function getBlock(params, options, limit, cb) {
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getBlocks(params, options, limit, (err, blocks) => {
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if (err) {
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logger.log('error',
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`getBlock: ${err.err}`);
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return cb(err);
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}
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if (!blocks.length > 0) {
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return cb(null, blockTemplate);
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}
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return cb(null, blocks[0]);
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});
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}
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module.exports = {
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getBlock,
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getBlocks,
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};
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