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33 lines
656 B
33 lines
656 B
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var fs = require('fs')
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function FileStorage(opts) {
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if (!opts.filename) {
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throw new Error('Please set wallet filename');
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}
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this.filename = opts.filename;
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this.fs = opts.fs || fs;
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};
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FileStorage.prototype.getName = function() {
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return this.filename;
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};
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FileStorage.prototype.save = function(data, cb) {
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this.fs.writeFile(this.filename, JSON.stringify(data), cb);
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};
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FileStorage.prototype.load = function(cb) {
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this.fs.readFile(this.filename, 'utf8', function(err,data) {
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if (err) return cb(err);
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try {
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data = JSON.parse(data);
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} catch (e) {
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}
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return cb(null, data);
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});
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};
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module.exports = FileStorage;
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