Support simple key-value store
In order to persist my access and refresh tokens, I needed a store. I think using a database like SQLite may have been fine for this but was heavier weight than what I wanted. I decided to write a simple key-value store when the state is encoded and JSON in a file called kv.json. TODO: - Support field nesting - Support better error handling - Support parameterizing the store path (i.e. ./kv.json)
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								gopkgs/kv/default.nix
									
										
									
									
									
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							|  | @ -0,0 +1,11 @@ | |||
| { | ||||
|   depot ? import <depot> {}, | ||||
|   ... | ||||
| }: | ||||
| 
 | ||||
| depot.buildGo.package { | ||||
|   name = "kv"; | ||||
|   srcs = [ | ||||
|     ./kv.go | ||||
|   ]; | ||||
| } | ||||
							
								
								
									
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								gopkgs/kv/kv.go
									
										
									
									
									
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								gopkgs/kv/kv.go
									
										
									
									
									
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							|  | @ -0,0 +1,40 @@ | |||
| // Supporting reading and writing key-value pairs to disk. | ||||
| package kv | ||||
| 
 | ||||
| import ( | ||||
| 	"encoding/json" | ||||
| 	"io/ioutil" | ||||
| 	"log" | ||||
| ) | ||||
| 
 | ||||
| const storePath = "./kv.json" | ||||
| 
 | ||||
| // Return the decoded store from disk. | ||||
| func getStore() map[string]interface{} { | ||||
| 	b, err := ioutil.ReadFile(storePath) | ||||
| 	if err != nil { | ||||
| 		log.Fatal("Could not read store: ", err) | ||||
| 	} | ||||
| 	var state map[string]interface{} | ||||
| 	err = json.Unmarshal(b, &state) | ||||
| 	if err != nil { | ||||
| 		log.Fatal("Could not decode store as JSON: ", err) | ||||
| 	} | ||||
| 	return state | ||||
| } | ||||
| 
 | ||||
| // Set `key` to `value` in the store. | ||||
| func Set(key string, value interface{}) error { | ||||
| 	state := getStore() | ||||
| 	state[key] = value | ||||
| 	b, err := json.Marshal(state) | ||||
| 	if err != nil { | ||||
| 		log.Fatal("Could not encode state as JSON: ", err) | ||||
| 	} | ||||
| 	return ioutil.WriteFile(storePath, b, 0644) | ||||
| } | ||||
| 
 | ||||
| // Get `key` from the store. | ||||
| func Get(key string) interface{} { | ||||
| 	return getStore()[key] | ||||
| } | ||||
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