schollz/jsonstore

# jsonstore :convenience_store: [](https://godoc.org/github.com/schollz/jsonstore) *JSONStore* is a Go-library for a simple thread-safe in-memory JSON key-store with persistent backend. It's made for those times where you don't need a RDBMS like [MySQL](https://www.mysql.com/), or a NoSQL like [MongoDB](https://www.mongodb.com/) - basically when you just need a simple keystore. A really simple keystore. *JSONStore* is used in those times you don't need a distributed keystore like [etcd](https://coreos.com/etcd/docs/latest/), or a remote keystore [Redis](https://redis.io/) or a local keystore like [Bolt](https://github.com/boltdb/bolt). Its really for those times where you just need a JSON file. ## Usage First, install the library using: go get -u -v github.com/schollz/jsonstore Then you can add it to your program. Check out the examples, or see below for basic usage: ks := new(jsonstore.JSONStore) // set a key to any object you want type Human struct { Name string Height float64 } err := ks.Set("human:1", Human{"Dante", 5.4}) if err != nil { panic(err) } // Saving will automatically gzip if .gz is provided if err = jsonstore.Save(ks, "humans.json.gz"); err != nil { panic(err) } // Load any JSON / GZipped JSON ks2, err := jsonstore.Open("humans.json.gz") if err != nil { panic(err) } // get the data back via an interface var human Human err = ks2.Get("human:1", &human) if err != nil { panic(err) } fmt.Println(human.Name) // Prints 'Dante' The datastore on disk is then contains: $ zcat humans.json.gz { "human:1": "{\"Name\":\"Dante\",\"Height\":5.4}" } **JSONStore** in the wild: - [schollz/urls](https://github.com/schollz/urls) - URL shortening # Dev Benchmark against using Redis and BoltDB as KeyStores using Go1.8 (Intel i5-4310U CPU @ 2.00GHz). Take away is that setting/getting is faster in *JSONStore* (because its just a map), but opening is much slower (because its a file that is read into memory). So don't use this if you have to store 1,000,000+ things! $ go test -bench=. tests/redis/* > redis.txt $ go test -bench=. tests/bolt/* > bolt.txt $ go test -bench=. > jsonstore.txt $ benchcmp bolt.txt jsonstore.txt benchmark old ns/op new ns/op delta BenchmarkSet-4 5471747 1847 -99.97% BenchmarkGet-4 2424 1479 -38.99% BenchmarkOpen100-4 11168 148035 +1225.53% BenchmarkOpen10000-4 10095 19722376 +195267.77% $ benchcmp redis.txt jsonstore.txt benchmark old ns/op new ns/op delta BenchmarkSet-4 24717 1847 -92.53% BenchmarkGet-4 22561 1479 -93.44% BenchmarkOpen100-4 6221 148035 +2279.60% BenchmarkOpen10000-4 4951 19722376 +398251.36% # License MIT

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