Skip to main content

REST API (GET,POST,PUT,PATCH,DELETE)

 The word API means application programming interface. Predominantly they are two important protocols which are used in world a) SOAP API (Simple object access protocol) API b) REST API means representational state transfer


API's are used to interact with the web applications, many of the major applications create API's so that the end users can interact with their platform programmatically. Similar to database where we can perform operations such as insert, update, delete. In API's also we can perform such operations. Rest API is one of the highest used API's in the current web applications


So in Rest API we have the following methods calls


a) Get - Get method is used to fetch the data from a web application

b) Post - Post method is used to insert the data into a web application

c) Delete - As the name suggests delete method is used to delete data from a web application, in here we can perform a select deletion or complete deletion as well

d) Put - Put method is used to overwrite an existing record in a web application

e) Patch - Patch method is used to update the record in a application


The difference between put and patch is, In put the record is completely overridden and all its attributes and patch record is used to only update a specific attribute in a record


Comments

  1. The distinction between PATCH and PUT in API design is crucial. PUT replaces a resource entirely, while PATCH updates part of it. Use PUT when a complete update is intended and PATCH for partial modifications, reducing unnecessary data transfer. Choosing the right method ensures efficient and meaningful interactions with APIs, promoting effective data management and optimization. Find more information on PATCH vs PUT.

    ReplyDelete

Post a Comment

Popular posts from this blog

Target Load Type - Normal or Bulk in Session Properties

We can see the Target load type ( Normal or Bulk) property in session under Mapping tab and we will go for Bulk to improve the performance of session to load large amount of data. SQL loader utility will be used for Bulk load and it will not create any database logs(redolog and undolog), it directly writes to data file.Transaction can not be rolled back as we don't have database logs.However,Bulk loading is very as compared to Normal loading. In target if you are using Primary Key or Primary Index or any constraints you can't use Bulk mode. We can see this property in the below snap shot.

Looping using Expression Transformation in Informatica

One of the most common used transformation in Informatica is Expression transformation. In Expression transformation we can perform various operations such as data conversions i.e to_date,to_char, string manipulation such as substr,instr etc. Now coming to one of the widely and prominent task which we perform using Expression transformation is looping a value. Expression transformation has three types of ports i.e. input,variable and output.Only output port values can be propagated to next transformations. So in order to pass values of input and variable ports to next level of transformation these must be assigned to output ports.The order of execution in Expression transformation is top to bottom and first input then variable and finally output ports are processed. let us consider the following scenario   The files should be generated with employee name as file name and that particular file should have the details of that respective employee only, if the employee has more than

Finding Duplicate records and Deleting Duplicate records in TERADATA

Requirement: Finding duplicates and removing duplicate records by retaining original record in TERADATA Suppose I am working in an office and My boss told me to enter the details of a person who entered in to office. I have below table structure. Create Table DUP_EXAMPLE ( PERSON_NAME VARCHAR2(50), PERSON_AGE INTEGER, ADDRS VARCHAR2(150), PURPOSE VARCHAR2(250), ENTERED_DATE DATE ) If a person enters more than once then I have to insert his details more than once. First time, I inserted below records. INSERT INTO DUP_EXAMPLE VALUES('Krishna reddy','25','BANGALORE','GENERAL',TO_DATE('01-JAN-2014','DD-MON-YYYY')) INSERT INTO DUP_EXAMPLE VALUES('Anirudh Allika','25','HYDERABAD','GENERAL',TO_DATE('01-JAN-2014','DD-MON-YYYY')) INSERT INTO DUP_EXAMPLE VALUES('Ashok Vunnam','25','CHENNAI','INTERVIEW',TO_DATE('01-JAN-2014',