Created
January 8, 2022 11:32
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Boilerplate to use LocalStorage in BlazorWasm App
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| using System.Threading.Tasks; | |
| using Microsoft.JSInterop; | |
| using System.Text.Json; | |
| namespace ClientSide.Services | |
| { | |
| public interface ILocalStorage | |
| { | |
| Task SaveAsync<T>(string name, T item) where T : class; | |
| Task DeleteAsync(string name); | |
| Task<T> FetchAsync<T>(string name) where T : class; | |
| } | |
| public class LocalStorage : ILocalStorage | |
| { | |
| private readonly IJSRuntime jsRuntime; | |
| public LocalStorage(IJSRuntime js) => jsRuntime = js; | |
| public async Task SaveAsync<T>(string name, T item) where T : class | |
| { | |
| var data = JsonSerializer.Serialize<T>(item); | |
| await jsRuntime.InvokeVoidAsync("localStorage.setItem", name, data); | |
| } | |
| public async Task DeleteAsync(string name) | |
| { | |
| await jsRuntime.InvokeAsync<string>("localStorage.removeItem", name); | |
| } | |
| public async Task<T> FetchAsync<T>(string name) where T : class | |
| { | |
| var data = await jsRuntime.InvokeAsync<string>("localStorage.getItem", name); | |
| if(data is not null) | |
| return JsonSerializer.Deserialize<T>(data); | |
| else return null; | |
| } | |
| } | |
| } |
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