Lets Encrypt SSL Error: The client lacks sufficient authorization 403 Forbidden
This is due to our web server are configured to deny accessing this directory…
May 09, 2018
Curl is a wonderful tool for initiate REST APIs or calls. Or, you can literally open any web URL through it, and save files on public URLs through it. Its pretty light weight.
All you need is a terminal or console.
OR
curl -X GEThttps://yourhost/api/getthings
And, you will get the result of this rest endpoint on the console or terminal.
Note: In above example, I assume there is no authentication asked by REST endpoint.
<h2>A POST Call</h2>
Lets assume you have a REST endpoint which takes some data in a POST call.
curl -X POST -H “Content-Type: application/json” -d ’{“msg”: {“to”: “abc-at-smail”}}’ localhost:3000/api/queue/v1
Here, I'm passing a json data to rest endpoint, and mentioned that its a POST call by -X switch.
Note: You need to mention header "Content-Type: application/json" to pass a json to your endpoint. Else, your end point will take it as a string not json.
<h2>Pass Http Headers</h2>
You can pass as many headers to your rest endpoint as you want. Curl provides -H switch, and you pass multiple headers.
curl -H “Host: www.host.com” -H “Authorization: xyz” -H “Content-Type: application/json” localhost:3000/api/queue/v1
<h2>Download static resource like Image</h2>
Assume you have a public url for image like, and you want to download to your machine or server.
curl https://www.owasp.org/images/1/1d/Session-Management-Diagram_Cheat-Sheet.png -o file.png
You specify -o flag to write to a file and give a name. Else, this will display content of that resource on console.
<h2>Download html</h2>
Similarly, you can download html of resource.
curl https://www.owasp.org/index.php/Session_Management_Cheat_Sheet -o file.html
This will download the htmlonly, not any other resources like image or css or javascript.
## Using curl for upload file on AWS S3
See [Uploading to S3 witj Curl](/tutorials/how-upload-aws-s3-curl/)
If you have any difficulty using curl, put it in comment below.
Enjoy
This is due to our web server are configured to deny accessing this directory…
Problem In drupal textarea field, it was always a pain to see the two links…
Introduction I have my main website, which I run on Lets say: . Now, there is my…
You are developing a nodejs web application having some UI and backend APIs…
MongoDB CRUD Operations Mongoose provides a simple schema based solution to…
I was trying to install mongo extension with pecl. It gave me error: Then, I…
Introduction In this post we will see following: How to schedule a job on cron…
Introduction There are some cases, where I need another git repository while…
Introduction In this post, we will see how to fetch multiple credentials and…
Introduction I have an automation script, that I want to run on different…
Introduction I had to write a CICD system for one of our project. I had to…
Introduction Java log4j has many ways to initialize and append the desired…