![Native Native](/uploads/1/3/3/8/133868326/355827489.png)
A reference guide to making GET, POST, PUT, PATCH, and DELETE API calls through the command line via cURL and their Postman equivalents.
Postman is an API testing environment. cURL is a command line tool for transfering data via URLs. When it comes to REST APIs, we can use Postman as a GUI (graphical user interface) and cURL as a CLI (command line interface) to do the same tasks.
Prerequisites
This step is taken by Postman after Google announced that it will be ending support for the Chrome apps for Windows, Linux and Mac. As it can be seen in the below image taken from the postman website, the last update for Chrome app was in 18 Oct, 2017. Quickstart: Register an application with the Microsoft identity platform.; 6 minutes to read +5; In this article. In this quickstart, you register an app in the Azure portal so the Microsoft identity platform can provide authentication and authorization services for your application and its users.
To run your app on iOS: cd /Users/peter/myrnapp react-native run-ios — or - Open ios myrnapp.xcodeproj in Xcode Hit the Run button To run your app on Android: cd /Users/peter/myrnapp Have an. Postman Galaxy: The Global Virtual API Conference. Postman Galaxy is a global, virtual Postman user conference. From February 2 to 4, 2021, we'll gather the world's most enthusiastic API users and developers for a rocketload of action-packed online event activities and content about all things API. As of MacOS 10.11 (El Capitan), to install/run TotalTerminal, you might need to disable System Integrity Protection: csrutil enable -without debug It's no longer open source, but the last open source implementation is still available on GitHub.
If you don't yet understand REST or know how to use REST APIs, please read Understanding REST and REST APIs.
Goals
I'm going to demonstrate how to do
GET
, POST
, PUT
, PATCH
, and DELETE
requests via Postman and cURL. If you don't have Postman, simply download it from the website. cURL should already be installed in your macOS or Linux environment.Endpoints
I'm going to use JSON Placeholder, an awesome example site for testing API calls. You can follow along and paste all the commands into your terminal to see what response you get.
Here is the map of methods to endpoints we'll be using.
/posts
means all, and the 1
in /posts/1
represents /posts/{id}
, so ID number1
. Free mac download flash 8.Method | Endpoint |
---|---|
GET | https://jsonplaceholder.typicode.com/posts |
POST | https://jsonplaceholder.typicode.com/posts |
PUT | https://jsonplaceholder.typicode.com/posts/1 |
PATCH | https://jsonplaceholder.typicode.com/posts/1 |
DELETE | https://jsonplaceholder.typicode.com/posts/1 |
You can click those URLs to see the GET values they provide to the browser. You can use the browser for GET, but you'll have to use cURL or Postman to POST, PUT, PATCH or DELETE.
cURL CLI arguments
Here are a few cURL argument we'll pass with our requests. All requests will simply be
curl
followed by the argument and data to pass.-X --request
- Custom request method-d --data
- Sends the specified data-H --header
- Sends headers-i --include
- Display response headers
GET
GET retrieves data.
GET Request
You can also use
curl -i
to get more information from the headers.All you have to do for Postman is paste the URL, select GET, and send.
POST
POST creates a new resource. It is non-idempotent, meaning that two identical POST requests will create two new resources.
POST Request
POST Request (json)
There are two ways to do this via Postman. After selecting POST, you can go to Body, select
x-www-form-urlencoded
, and type each individual value in. If you go to Headers, you'll see Content-Type: application/x-www-form-urlencoded
.Or you can go to Body, select raw, select
JSON
, and send the actual JSON you intend to send. If you go to Headers, you'll see Content-Type: application/json
.PUT
PUT updates an existing resource. It is idempotent, meaning that two identical PUT requests will modify the same resource. A PUT request requires the entire body to be sent through; if any data is missing, that data will be wiped (except automatic values like auto-incrementing IDs and timestamps).
PUT Request
PUT Request (json)
Sending the values is the same as with POST.
PATCH
PATCH updates an existing resource, and does not require sending the entire body with the request.
PATCH Request
PATCH Request (json)
No change to sending the values.
DELETE
DELETE removes a resource.
DELETE Request
No values to send.
Authentication
If you need to send additional headers, like
Authorization: Bearer
or x-jwt-assertion
for JWT-based authentication, you can do it through cURL like this.In Postman, you'll go to Headers and add
Authorization
as the key and Bearer <JWT_TOKEN>
as the value to send authentication values. You can also go to Headers, click Presets, Manage Presets, and put your own reusable variables in for any headers or values you'll be reusing a lot.Conclusion
This guide provides all the basics for getting started with testing your APIs, either through Postman's GUI or cURL's CLI, using JSON or urlencoded form data.
INTRODUCTION
In this tutorial, we will build simple Login and Registration system using Ionic 4 Framework. I hope that you already know the basics of Ionic. We will use CLI, Angular Router, Guards, Services etc. This app is going to send and receive data from backend. We will implement HTTP API calls in this app.
![App App](/uploads/1/3/3/8/133868326/836362893.png)
PREREQUISITES
First of all we will start with installing Node and Ionic if you don’t have already installed. Follow Setting up Ionic 4 Tutorial or visit Ionic Framework docs for more info.
https://ameblo.jp/riputerloa1976/entry-12639864387.html. This project is available on GitHub at https://github.com/flicher-net/ionic-4-auth
Ionic CLI version is available at https://github.com/flicher-net/ionic-4-auth-cli
STEP 1 — GETTING STARTED
Hit the floor season 2 download torrent. After making sure you have the latest version on Ionic and Cordova installed, let’s go and create an app now and integrate authentication in it.
To get started let’s create a new app first. Open your Terminal or Command Prompt and got to the directory where you want to create app. You can use following command to change directory.
Then run the following command to create a new app.
After installing `NPM` modules and dependencies, you will see this question, just type `N` because we are not using it yet.
Next, go to the newly created app folder.
Now we have successfully created an Ionic 4 app, Now let’s integrate authentication in it. Let’s run few commands to create few pages, services etc. Don’t we will add code to these pages and services later so just run commands for now.
We also need Native Storage plugin to store auth token which we will using in HTTP calls. Run the following command to install it.
Step 2 — Update app/app.module.ts
As we added Native storage plugin into our app, we also need to add it to our src/app/app.module.ts. We also need to add HttpClientModule as we are going to send request to Rest API to get token, user data etc.
Now go to src/app/app.module.ts and add following code. Don’t forget the comma (,) in the end of line 21 and 27.
Step 3 — Create User Model
Let’s create the user model. We need to add user interface into it. To do that create a new folder under src/app folder name it models and create a new file into models folder and name it as user.ts. Copy the following code into user.ts file.
Step 4 — Updating Services
In this app we will be using 3 services. We have already generated them in the beginning. It’s always good to create services, where we can put our code which we will be using a lot. Now let’s go ahead and edit them.
Env Service
In this service we will put our Environment Variables. Download game offline 32 bit. For example: API_URL. Go to src/app/services/env.service.ts, and add variable API_URL and add your Api URl.
Alert Service
In this service we will use Angular Toast Notification to give alert message to user. Go to src/app/services/alert.service.ts and add following code.
Auth Service
This service will handle login, registration, logout and getting user info. Now go ahead and add following code into src/app/services/auth.service.ts.
As you can see we are Using Angular HTTP Module to make API calls. You will see URL for login is API_URL + ‘auth/login’ and register is API_URL + ‘auth/register’. You can edit this according to your API URL.
Step 5 — Add Auth Guard
So when our app loads, it will check for auth token. If token exists, which means user is logged in and app will let user go to dashboard, Otherwise if token doesn’t exists, app will take user to landing page which will prompt user to login or register.
To do this we will Guard, Update following code in src/app/guard/auth.guard.ts file.
Step 6 — Update Pages
As we have already generated some pages in the beginning like Login, Register, Landing, Dashboard. Now let’s go ahead and edit them.
You will see src/app/home and src/app/list folder, you can go ahead and delete them if you don’t need them. In this tutorial we will just leave them and we will treat them as auth pages, they will be only accessible if user is authenticated.
We will be disabling side menu in Landing, Login and Register Page as well.
Login Page
Let’s add a form into login page which will ask for Email and Password. It will look like this. As we will open login page in a modal from landing page so we will also add close button on top left to close modal.
Now go ahead to src/app/pages/auth/login.html and add following code.
We also need to edit src/app/pages/auth/login.page.ts, so go ahead and add the following code.
Register Page
We will be doing the same with Register Page as well which will look like this.
Let’s change src/app/pages/auth/register.page.html file.
And add following code to src/app/pages/auth/register.page.ts.
Landing Page
This will be the starting page of our app, we will change it to starting page later in tutorial. Our landing page will look like this.
And add following code to src/app/pages/landing.page.html.
Also add following code to src/app/pages/landing.page.ts.
As we are going to be loading modal from landing page of Login page and Register Page. We need to declare Login and Register page and set entry point in our module. Now we can take advantage of Ionic 4 Lazy Loading. Open src/app/pages/landing/landing.module.ts file and add following line.
Dashboard Page
Let’s add basic functionality in this page so when this page will load it will display user First name.
Open src/app/pages/dashboard/dashboard.page.html and add following code.
Also add following code into src/app/dashboard/dashboard.page.ts.
Step 7 — Update Routing
As Ionic 4 uses Angular routing, so let’s go ahead and edit src/app/app-routing.module.ts. We also need to add Auth Guard which we created earlier to some pages like dashboard, home, list.
We also need to change the starting page of app when it loads. To do that change src/app/app-routing.module.ts file.
Step 8 — Updating App Component
By default App Component is loaded which do pre checks before launching the app. In the constructor of our App Component, we can do any work that needs to happen on initialization of the app. By default, there are some calls to Cordova Plugins through Ionic Native etc.
Remember we said we will check that each time our app loads we will check if user is authenticated or not, we can do it here in app component. So open src/src/app/app.component.ts and add following code
Let’s also add Logout button in menu which will look like this.
Open src/app/app.component.html and add following code to file.
Step 9 — Running the app
Perfect you have successfully added authentication into you app. I hope your Backend Server is ready as well. So we can run the app now. Now as we are using Ionic Native plugins like Native Storage, we need to run this app on device or emulator. The easiest way to run our app on phone using Ionic Dev App. Run the following command in terminal and open Ionic Dev app on your phone.
Your app will appear automatically in Ionic Dev App, after terminal finished compiling app. If not try to connect to app manually by entering address and port.
Conclusion
With the help of Ionic 4 CLI, we were able to generate pages, guards and services quickly and we were able to integrate authentication successfully in our app. The gimp free download mac.
If you also want to see how to setup backend. Please check Laravel Rest API Passport Authentication for Ionic App
Postman Native App Blank Screen When Running Api Macos 10.12
If you have any questions, Ping me on Twitter or let me know on comments below.