School Of Basics | What is an API | API testing interview questions

A Story of API - automationstepbystep.com/2020...
What is API ?
Application Programming Interface
A software intermediary that allows two applications to talk to each other.
Free Videos - automationstepbystep.com/onli...
#SchoolOfBasics
FREE Courses - automationstepbystep.com/onli...
Udemy - www.udemy.com/user/raghav-pal-3/
Training by Raghav at your venue - [e-mail]
Training schedule - automationstepbystep.com/trai...
----------- UI TESTING -----------
Selenium Beginners - bit.ly/2MGRS8K
Selenium Java Framework from Scratch - bit.ly/2N9xvR6
Selenium Python - bit.ly/2oyMp5x
Selenium Tips - bit.ly/2owxc50
Selenium Builder - bit.ly/2MKNtlq
Katalon Studio - bit.ly/2wARFdi
Robot Framework with RIDE- bit.ly/2Px6Ue9
Robot Framework with Eclipse - bit.ly/2N8DZxb
----------- API TESTING -----------
Web Services (API) - bit.ly/2MGafL7
SoapUI - bit.ly/2MGahmd
Postman - bit.ly/2wz8LrW
General - bit.ly/2PYdwmV
Katalon Studio API Testing - bit.ly/2BwuCTN
----------- MOBILE TESTING -----------
Appium - bit.ly/2ZHFSGX
Mobile Playlist - bit.ly/2PxpeUv
----------- CI | CD | DEVOPS -----------
Jenkins Beginner - bit.ly/2MIn8EC
Jenkins Tips & Trick - bit.ly/2LRt6xC
Docker - bit.ly/2MInnzx
----------- VERSION CONTROL SYSTEM -----------
Git & GitHub - bit.ly/2Q1pagY
----------- PERFORMANCE TESTING -----------
JMeter Beginner - bit.ly/2oBbtIU
JMeter Intermediate - bit.ly/2oziNVB
JMeter Advanced - bit.ly/2Q22Y6a
JMeter Tips & Tricks - bit.ly/2NOfWD2
Performance Testing - bit.ly/2wEXbLS
----------- PROGRAMMING -----------
Java Beginners - bit.ly/2PVUcXs
Java Tips & Tricks - bit.ly/2CdcDnJ
GROOVY - bit.ly/2FvWV5C
----------- IDE -----------
Visual Studio Code - bit.ly/2V15yvt
----------- MAVEN -----------
Maven - bit.ly/2NJdDRS
----------- OTHERS -----------
Redis- bit.ly/2N9jyCG
Misc - bit.ly/2Q2q5xQ
Tools & Tips - bit.ly/2oBfwoR
QnA Friday- bit.ly/2NgwGpw
Sunday Special - bit.ly/2wB23BO
Ask Raghav - bit.ly/2CoJGWf
Interviews - bit.ly/2NIPPxk
All Playlists - bit.ly/2LSiezA
Website - automationstepbystep.com/
LifeCharger - lifecharger.org/
Udemy Courses - www.udemy.com/user/raghav-pal-3/
Twitter - / automationsbs
KZbin - / automationstepbystep
You can support my mission for education by sharing this knowledge and helping as many people as you can
Never Stop Learning
Raghav

[@hsociety428]

Let's pay him back by watching all the advertises on his videos, because that's the only way for him to make money

[@RaghavPal]

Thanks for your kind message

[@theweirdclub3945]

Loved your comment buddy

[@prachimuddapur]

It's so hard to make content simple. And impart that knowledge. Amazing!

[@RaghavPal]

So happy and humbled to see this message

[@abhishekkushwaha5449]

Hey Raghav, you have made it so simple and easy to understand. Great work ! Thanks for posting this video

[@imranshaikh115]

You put lot information in a very small video that is not an easy task for someone. It requires lot of skills and experience to make this kind of clear and crystal explanation about one confusion topic so anybody could understand in an easy manner. Thanks a lot for sharing very beautiful information. God may increase your knowledge

[@RaghavPal]

You're welcome Imran. Humbled by your message

[@sounakdas1063]

I also agree

[@harithav9505]

I Agree too..this is clear to have a basic idea of what's API. ThnQ Sir :)

[@user-uj1we7yv6v]

Really I too agree..thanks a lot

[@surabhisharma6608]

This is one topic which has so much information available on the internet including on youtube and yet i find myself continuing to come back to search for it again and again because something stays amiss. Thank you for this wonderful video and must I say that your style of speaking is very soothing and genuine. No flamboyance, only pure knowledge. You keep it real. Thanks.

[@RaghavPal]

Great to hear Surabhi

[@shukailu6731]

Hey Raghav, I love your channel and you are one of the best explainers on youtube for APIs, thank you!

[@RaghavPal]

You're welcome Shu

[@favouronuoha8134]

You are a gifted teacher. Few minutes in and I could already explain what an API is to another newbie..

[@RaghavPal]

So happy & humbled to read this

[@WolfGr33d]

"API enables communication between different applications" Thank you for being the first person to give an understandable explanation. I kept running into video after video giving vague descriptions of what an API does by using the Waiter and Chef analogy, without ever explaining they were representing applications.

[@RaghavPal]

Hi, glad to know this helped

[@Galaxy2431]

A much simpler way to understand what an API is, imagine you login to your Bank and do all the activities there - wire funds to another account, transfer, view balances, search a transaction by a specific amount or date, etc. This is User Interface, or UI. Now imagine you are a big company and have hundreds or thousands of daily Bank transactions. Inputting, handling and managing them manually would be a herculean task, very time consuming, would need a lot of people to manage these tasks manually, hence costly, as well as will be prone to error when you want to bring these bank transactions to your company's accounting ledger, like an ERP system. So, to facilitate this, most Banks provide secure digital interface with exactly same feature as you can perform via a UI. This digital feature is what is called an API. More appropriately, we will say that such and such features are implemented or exposed by a specific application (in our example the Bank) via APIs.

[@TheAnyaLiu]

Raghav, thank you very much for the amazing material SchoolOfBasics. It is clear and understandable (even for me)!

[@RaghavPal]

So Glad to know this Аня

[@houseofrangoli7089]

You are the best teacher I am looking for these many years... Subscribed ur channel in the first video itself and am gonna watch all ur videos without miss from scratch... Hats off Sir.

[@RaghavPal]

Great, all the best

[@anilkumar-pq9ry]

Beautifully said, Gave me confidence to talk about API.

[@RaghavPal]

Glad to know this. Read API story here - automationstepbystep.com/stories/

[@pawanverma1390]

@@RaghavPal that's really nice story 👍

[@sridharg8143]

Thanks Raghav for explaining API in simple terms for a layman like me. Amazing. Kudos to you.

[@RaghavPal]

Most welcome Sridhar

[@akonamoguejiofor6018]

This is a very good video to understand API, In fact, the best so far. This is a short but straight to the point video while extinguishing any confusion about what API is.

[@RaghavPal]

Thanks a lot for your message Akonam. Humbled

[@RaterisimoCBA]

Very simple presentation and perfect example as well. Subscribed ! Also an API maybe used if you don't want to create a functionality from scratch because it already exists (LOGIN for example) so you might want to use OAuth or some other login service that already exists and handles security protocols, etc for you without having to worry about encryption, data security , etc. So using an API can save you some time as a developer and complications in your project. :)

[@RaghavPal]

yes, well said

[@ayenidanielibikunle]

Mr. Pal, thanks for all you do.. What a nice tutorial. In fact, the best tutorial I've seen on APIs. I've been stuck for some weeks now because I wasn't understanding how and what to begin with on Payment Integration but with this tutorial, you have explained so much to me. Thank you.

[@RaghavPal]

So happy to see your message Ayeni

[@sahils007in]

Great source of information... Explained in layman terms .. Thank you for making it so easy ...

[@RaghavPal]

You're welcome Sahil

[@sandeepredhu2035]

Difference between web services and API is always in top list of my confusion. From this video I came to know what an API exactly is.

[@RaghavPal]

Glad to know this Sandeep

[@teodortodorov4042]

Well and carefully explained tutorial. I like your approach man! You definently deserve more subscribers. Thank you i was so confused with this whole API's configurations and never really understood what are they and what are they used for but thanks to people like you now i have a general idea. Now its time to implement them :) Keep girnding and happy coding ! :)

[@RaghavPal]

Most welcome Teodor

[@sameerjadav3364]

Appreciate really simply explained and no more complicated words Thank you Will watching yiou and learning from you

[@jzonlivingson6336]

Some of the clearer explanations I've heard. Keep up the good work, man!

[@RaghavPal]

Thanks Jzon

[@rishikaraveendran8556]

This is just perfect!!! Thank you so much sir.!

[@RaghavPal]

You're welcome Rishika

[@krzysztofbanach8014]

Hello Raghav, Very good, concise and clear explanation. Keep it up. Thank you so much for time to create this video. All the best! :)

[@RaghavPal]

You're welcome Krzysztof

[@AnushR27]

Thankyou Sir for this very clear explanation of an API with examples :)

[@VishwaVlogskk]

honestly never seen such a simple explanation, keep it up good work.

[@RaghavPal]

Thanks Vishwa

[@gauravsoni-um8lv]

It is my first video on your channel. Just loved it. Keep making such kind of videos. God bless you.

[@RaghavPal]

Thanks for watching Gaurav

[@dataflow8419]

I understood before actually watching the whole video. Thanks a lot. It went a long way. The right message within a very short period.

[@RaghavPal]

Most welcome

[@rasikbhuimbar2343]

This is the most simple and understandable explanation which I have seen so far...Great !!

[@RaghavPal]

Glad it was helpful Rasik

[@manojkushwaha8064]

You are awesome, you are given a lot of information about API, which is a very simple way and just within 8 minutes. Thanks for the simple API definition.

[@RaghavPal]

most welcome Manoj, can get more here - automationstepbystep.com/

[@somanipatro4891]

Hey Raghav.. Loved your videos.. It would be great if you could make series of videos for API testing. But to be honest your videos and way of teaching and showing real time examples .. great!!

[@RaghavPal]

Thanks Somani, noted

[@keerthis5211]

Best explanation so far I have seen. Explained in simple terms and it’s easy to understand

[@RaghavPal]

Glad it was helpful Keerthi

[@piotrkrajniak3514]

This is actually what I needed..! I will remember now client -> waitress -> kitchen chef as an exmaple what is an API :) Thank you for sharing!

[@RaghavPal]

You're very welcome!

[@sumitnandwal2878]

@RaghavPal Its very difficult to explain correct thing in a simple way and you are really very good in it. The question what is an API is difficult to explain but the way you explained it is awesome. I can explain it very easily to anybody else now.

[@RaghavPal]

So happy to know this Sumit.. keep learning

[@abhishekdubey6854]

One needs this as their foundation before jumping into the complexities it holds. Thanks :)

[@RaghavPal]

Most welcome Abhishek

[@raghusundaram1057]

Really fantastic after a month of search now only i understand what is really an api . I appreciate 🙏 your work. Keep going 💪 ✨ 👌 👏

[@RaghavPal]

So glad and humbled to hear this, thanks Raghu

[@cihanklckaya4957]

Whatever this guy explains, I understand it at once, all of it, great job!

[@RaghavPal]

Great to hear Cihan

[@SuperSunrise22]

You are a fantastic teacher and you are doing an amazing deed with free accessibility to your content. Appreciate it. 🙏🏼 will definately recommend and share your video to all newbies who are trying to get into IT.

[@RaghavPal]

You are so welcome!

[@lisazhou7776]

I like your each video, you explained concepts simple and clear, easy to understand them. Thank you! Keep posting.

[@RaghavPal]

Most welcome Lisa

[@selvamkandharaja3415]

Always a big fan of ur explanation Raghav!!!! Miles to go!!!

[@RaghavPal]

Thanks for the constant support Selvam

[@sandeepredhu2035]

Nice explanation. Thanks for clear out many doubts.

[@RaghavPal]

You're welcome Sandeep

[@Elmotheswiftie]

Thank you for the simple to understand examples. It’s so helpful.

[@RaghavPal]

You're very welcome..

[@morninggraphics2052]

this what a presentation looks like ... simple words 😊 explained well.. thanks 🙏

[@RaghavPal]

Most welcome

[@AntuNeelesh]

It was a very good presentation bro :)

[@RaghavPal]

Thanks

[@Daft_punked]

Agreed,very clear. Thanks!

[@Qalb-e-bano]

kzbin.info/www/bejne/marQla2ueJ1gd6s

[@solomon5050]

Excellent!!! I run all the advt without skipping.

[@RaghavPal]

Thanks

[@aatishr9908]

Really simple and nice!! Easier for a beginner to understand!! Thank you sir!

[@RaghavPal]

You are welcome Aatish

[@sainiranjan40]

Thank you very much Raghav. Could you please make a video on testing types in a sequence in testing world ? Like types of testing performed during requirement gathering, during application design what type of testing performed, during development what types of work/testing performed by the testers and so on until production stage or sprint review (In Agile world). Thank you.

[@RaghavPal]

I will plan Sai

[@vinnu333]

A very very brilliant presentation of an important topic with crystal clear explanation and good examples.. 👏

[@RaghavPal]

Thanks Vinil, humbled

[@ashaojha7380]

Very well explained, I am pretty much confident about API after watching this

[@RaghavPal]

Glad to hear that Asha

[@sgstradetalk9725]

Superb sir bahut hi easily aapne samjhaya . concept sabhi ko samjh me aajyega

[@RaghavPal]

Thanks

[@urmilaravishankar3172]

Example is exemplary..this played the trick to massive success of this video 😊

[@RaghavPal]

Thanks for watching Urmila

[@manuhs6767]

Sir,Thanks a lot for your Effective way of teaching and it's also easy to understand.

[@RaghavPal]

You're welcome Manu

[@manuhs6767]

Thanks Sir

[@thatmarathigirl607]

Brilliant explanation in most simple words..!!👌👌

[@RaghavPal]

Thanks a lot

[@AnilKumarfeb15]

Dear Raghav You are a wonderful man, Thanks for the explanation about API, In the basics please make a video for the basic knowledge on the API tags, separation and create them manually and understand the response without a tool.

[@RaghavPal]

Sure Anil, I will do

[@kedardeuskar3865]

Excellent. Thanks for explaining in layman point of view

[@RaghavPal]

Glad it was helpful Kedar

[@vybhavis6239]

Analogy used here is really good :) Makes it easy to learn

[@RaghavPal]

Glad to know this

[@titusvisuals8920]

I'm proud to be as your subscriber dear sir..... Thank you so much for your stiving for us... ❤️From State of Andhra Pradesh

[@RaghavPal]

Most welcome

[@arulraj4012]

Great video champ. Thanks a lot and continue doing such amazing works👍

[@RaghavPal]

Thanks, will do Arul

[@bhanumathisudhakar3676]

Excellent presentation in a very simple language👍commendable ...

[@RaghavPal]

Thanks Bhanumathi

[@shailajagpr7288]

woww... explained in a such a way that any one can easily understand.

[@RaghavPal]

Thanks a lot Shailaja

[@aamirkhan-mv4qj]

I really appreciate the way you explained. Makes it easy to understand.

[@RaghavPal]

Glad to know Aamir

[@manreet1100]

I finally understand what an API is! Thank you so much

[@RaghavPal]

Glad it helped Manreet

[@VNandini-je7tc]

Thank you so much for this simple yet amazing video.

[@RaghavPal]

Glad it was helpful Nandini

[@RashmitaPurkayastha]

Excellent 👍will follow your other video watching for first time and it's really good

[@RaghavPal]

Thank you so much Rashmita

[@preetam15]

you are genius.. made it so simple . awesome :) thank you...

[@RaghavPal]

You're welcome Preetam. Humbled

[@oleksiyiven3654]

Great and amazing! Subscribed! Glad I found you and thanks for what you do!

[@RaghavPal]

Most welcome Oleksiy

[@pujithagonthina7010]

Hi Raghav, interesting video with clear info. Thanks!

[@RaghavPal]

Glad it was helpful Pujitha

[@lahirukerala7500]

API understand in 7 mints. thank you so much for saving our time …..

[@RaghavPal]

Most welcome Lahiru

[@diegotrejocordova]

Very good explanation, thank you from Mexico.

[@RaghavPal]

You're welcome Diego

[@billp5793]

Very helpful video, very well done and very easy to understand. Thank you!

[@RaghavPal]

You're very welcome!

[@nkunam]

Good job Raghav. Thank you

[@RaghavPal]

Most welcome

[@1400cbc]

Thanks Raghav, that was very well done and understandable.

[@RaghavPal]

Most welcome

[@rameshlingadalli7067]

It was good explanation bro... Finally i can explain what is API to anyone

[@RaghavPal]

Glad to know Ramesh

[@drugtrip]

Great examples and information. Thank you.

[@RaghavPal]

Most welcome

[@sayuri2814]

Perfect 💯💯 This is so easy than reading long notes

[@RaghavPal]

Thanks for watching Sayuri

[@sandeeptanjore1253]

Concepts presented in a very simple yet power manner. Brief, crisp and to the point.

[@RaghavPal]

Thanks for watching Sandeep

[@sandeeptanjore1253]

@@RaghavPal You are welcome Raghav. A quick question - as I am a PL/SQL developer, how can I use Webservices or APIs in Oracle? if you have the know-how, where is the starting point for me or where should I begin? Please let me know.

[@RaghavPal]

I will need to check a little more to give you a good answer, will plan for it

[@sandeeptanjore1253]

@@RaghavPal Thanks Raghav, I will wait for your response.

[@JaneLamb]

I love your explanation!!!

[@karenyue626]

Thank you so much for the clear explanation. Like the comparisons to daily life cos it makes concepts easy to understand. One advice, can the video ensure consistent lighting? Otherwise I keep wondering if something is wrong with my display screen when watching this video. Thanks.

[@RaghavPal]

Hi Karen, thanks and I will take the feedback and work on it

[@rasikakumari1655]

So much thanks to this clear presentation.Big thanks again...!!!👍

[@RaghavPal]

Most welcome Rasika

[@vmkj654]

explained in very easy words....thank you....

[@RaghavPal]

You're welcome Varsha

[@abdullahmusheer4238]

very good and simple with good example explanation. You have done a great job many thanks.

[@RaghavPal]

Most welcome

[@samystick_on]

That was clear and concise. Now I got a clear idea what an API is, thanks.

[@RaghavPal]

Glad it was helpful!

[@samystick_on]

@@RaghavPal Yes, it was 💯

[@lks5343]

Nice , thanks for the crystal clear explanation.

[@RaghavPal]

You're welcome

[@vikasgogna3026]

Worth sharing information on API. Very fruitful taught by you sir. Keep it up..!

[@RaghavPal]

Thanks a ton Vikas

[@chalakadeshan5367]

Thank you very much sir. this is help me lot. keep doing this sir.

[@RaghavPal]

Sure Chalaka, Thanks for watching

[@sumitsaurabh548]

Very good information abt API Testing understand clearly,thanks..

[@RaghavPal]

You are most welcome Sumit

[@playerkidk4308]

You are the best👍👍👍! Very knowledgeable instructor

[@RaghavPal]

Thanks for the kind words Arzu. Humbled

[@federicolecvine1147]

Loved it, clear and usefull, greetings from Argentina, and thank you for this info

[@RaghavPal]

Most welcome Federico

[@addogideon15]

Fantastic. Explained the whole thing for me.

[@RaghavPal]

Glad to know

[@alokgugi]

Very well explained. Amazing hand writing as well.

[@RaghavPal]

Thank you so much Alok

[@voskilltheentertainer2564]

you are the best...ive understood what a api is using a simple illustration

[@RaghavPal]

humbled.. Thanks

[@voskilltheentertainer2564]

@@RaghavPal you are welcome

[@jeevan9092]

Very nice sir ...awesome awesome i saw lot of videos but only i grasped the topic from you thank you so much

[@jeevan9092]

Do videos on spring boot please clearly

[@RaghavPal]

I will plan Jeevan

[@amitasn1]

Very easy and explanation Raghav. Keep up the good work ☺️

[@RaghavPal]

Most welcome Amit

[@Orderoll]

Most briliant explanation I've ever seen.

[@RaghavPal]

thanks

[@pradeepkasimsetty275]

Awsum, explained in a very simple way and for a better understanding

[@RaghavPal]

Glad it helped Pradeep

[@prashantpethe6451]

Thank you so much. Its very easy to understand and grasp the Concept.

[@RaghavPal]

You are most welcome Prashant

[@dwaynemcpherson5379]

This is the best explanation I've ever heard.

[@RaghavPal]

So happy & humbled to see this

[@sagarvyas1892]

This is such a beautiful explanation. Thank you very much

[@RaghavPal]

Most welcome Sagar

[@nishamahendran1532]

Awesome explanation! Simple and easy to understand.

[@RaghavPal]

Glad it was helpful Nisha

[@cherukupallinavya7301]

Awesome..!! so simple and easy to understand.. Thanks alot..!!

[@RaghavPal]

Most welcome!

[@sospetermongare96]

Well presented and perfect examples. Thank you

[@RaghavPal]

You're very welcome!

[@houdadoukkara547]

Thank you so much for this beautiful presentation.

[@RaghavPal]

So nice of you Houda