lolkabagm / hospital-his

Small example using Xamarin Forms 2.5, MVC5 and web api.

Hospital

Introduction

Small example using Xamarin Forms 2.5, MVC5 and web api.

Login in Xamarin Forms 2.5 with our API. Get, create, delete and update (CRUD) records from Xamarin Forms from our API. All queries from Xamarin Forms are made with token.

Usage

Update your connectionStrings

Configure a connection string for SQL Server in the Web.config

  <connectionStrings>
    <add name="DefaultConnection" connectionString="Data 
    Source=YOURTDATABASE; 
    Initial Catalog=YOURNAMEDB; Persist Security     
    Info=True;User ID=YOURUSER;Password=YOURPASSWORD”"
    providerName="System.Data.SqlClient" />
  </connectionStrings>-->

• Connection String Syntax
• Learn more about connection strings

Configure validation logic for passwords

By default, if you don't customise anything, Identity configures a default set of validation rules for new passwords. If you want to change these values, you can change the file called App_Start/IdentityConfig.cs

    manager.PasswordValidator = new PasswordValidator
    {
        RequiredLength = 6, // Passwords must be at least 6 characters
        RequireNonLetterOrDigit = false, // Passwords must have at least one digit ('0'-'9')
        RequireDigit = false, // Passwords must have at least one non alphanumeric character
        RequireLowercase = false, // // Passwords must have at least one lowercase ('a'-'z')
        RequireUppercase = false, // Passwords must have at least one uppercase ('A'-'Z')
    };

PasswordValidator Class

Set the color in the project

In our PCL, the file App.xaml you can change the color

    <Color x:Key="MainColor">#273646</Color>
    <Color x:Key="FontColor">#2d8dd6</Color>
    <Color x:Key="AccentColor1">#2371aa</Color>
    <Color x:Key="AccentColor2">#e44235</Color>
    <Color x:Key="BackgroundColor">#e9eeef</Color>

Resource Dictionaries

Set your API

In our PCL, the file Services/HttpService.cs you must put the url of your api and prefix

   private const string UrlApi = "YOURAPI";
   private const string tokenType = "bearer";
   protected const string FirstVersion = "/api";

• Rest api tutorial - Microsoft
• Rest api tutorial - hackernoon
• Rest api tutorial - code-maze
• Rest api tutorial - solidgeargroup

Check your API with postam

• Get token with postman
• Get - Example with token with postman

Security

OAuth 2.0 protocol and Microsoft Owin Library will help us. Owin is basically creating own pipeline between iis and application to manage requests.

In the file Startup.Auth.cs an OWIN Authorization server is configured to accept login (token) HTTP requests at /Token endpoint and external login requests at /api/Account/ExternalLogin

• OAuthAuthorizationServerOptions Class
• Oauth
• OAuthAuthorizationServerOptions Token

Plugins

Web API and MVC5

Plugin	Project
EntityFramework	Model
Newtonsoft	Model

Xamarin

Plugin	Author
Settings	james montemagno
MvvmLightLibsStd10	galasoft
Connectivity	james montemagno
Newtonsoft	james Newton-King
Image Circle	james montemagno

Tools

The following tools are essential:

• Genymotion - The Best Android Emulator
• Postman - Application which is used to fire requests to an API. It is possible to make different kinds of HTTP requests – GET, POST, PUT, PATCH and DELETE.
• Quicktype - Generate c# classes from json.
• Color Adobe - To create color schemes for my designs. For this project I have choosen https://color.adobe.com/Flat-UI-color-theme-2469224/

Recommended links

Getting Started with ASP.NET MVC 5

License

The MIT License (MIT) see License file