Understanding Of RestAPI
API
API stands for Application Programming Interface. In the context of APIs, the word Application refers to any software with a distinct function. The interface can be thought of as a contract of service between two applications. This contract defines how the two communicate with each other using requests and responses.
For example, the weather bureau’s software system contains daily weather data. The weather app on your phone “talks” to this system via APIs and shows you daily weather updates on your phone.
RESTful API
RESTful API is an interface that two computer systems use to exchange information securely over the internet
HTTP, HTTPS Protocol
https://www.geeksforgeeks.org/difference-between-http-and-https/
Methods in RESTful API
Method 1: GET
The GET method is used to ‘retrieve’ a record or a collection of records from the server. The response is generally a JSON object with the data you requested.
Method 2: POST
You use the POST method whenever you need to create a new record in the database. This method takes an object as a payload and sends it to the server. The server code then handles the data, processes it if needed, and puts it in the database.
Method 3: PUT
You often need to update the existing data of the database, and the HTTP PUT method allows you to do just this. Like the POST method, it also takes an object and sends it to the server. The server processes the data and then updates the databases with the updated data.
Method 4: PATCH
The PATCH request method is used to modify only the necessary part of the data or response. The PATCH method doesn’t modify the entire response. It only modifies partial modifications to a resource.
Method 5: DELETE
As the name suggests, this method exists to delete data off the server. It is provided with a payload with information like the ID of the record the user wants to delete. Once the ID is found on the server, it is deleted from the database.
Status Codes
Most used codes — 200, 201, 401, 500, 204
Fetch
Axios
