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

[@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

[@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.

[@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 :)

[@AnuY-u9u]

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

[@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

[@sridharg8143]

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

[@RaghavPal]

Most welcome Sridhar

[@prachimuddapur]

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

[@RaghavPal]

So happy and humbled to see this message

[@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!

[@Kittysoftpaws11111]

I learned more in the first 4 mins of this video than all the others combined. Thank you so much for this

[@RaghavPal]

So happy to know this helped

[@ro1246]

The most comprehensive teaching about API. I love your teaching style. Thank you so much!

[@RaghavPal]

You're very welcome Janine

[@rasikbhuimbar2343]

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

[@RaghavPal]

Glad it was helpful Rasik

[@solomon5050]

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

[@RaghavPal]

Thanks

[@sahils007in]

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

[@RaghavPal]

You're welcome Sahil

[@sgstradetalk9725]

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

[@RaghavPal]

Thanks

[@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 👍

[@keerthis5211]

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

[@RaghavPal]

Glad it was helpful Keerthi

[@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 💯

[@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

[@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

[@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

[@lahirukerala7500]

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

[@RaghavPal]

Most welcome Lahiru

[@keziabernard1754]

This was amazing! You did for me what my bootcamp couldn't within 6 months and $9000 later😭

[@RaghavPal]

So happy and humbled to know this helped Kezia.. keep learning

[@sivaprasad8267]

Hi...Please provide notes in PDF format,so that we can easily do revision....Thanks for sharing your knowledge in different way...Good explaination...

[@RaghavPal]

Will plan for that Siva, will have to check some external link for that

[@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

[@bhanumathisudhakar3676]

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

[@RaghavPal]

Thanks Bhanumathi

[@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

[@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

[@cihanklckaya4957]

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

[@RaghavPal]

Great to hear Cihan

[@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

[@abhishekdubey6854]

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

[@RaghavPal]

Most welcome Abhishek

[@himanshilatwal8452]

I think you are the only one here, who is representing everything in so easy manner.

[@RaghavPal]

I am so happy and humbled to see this Himanshi

[@manreet1100]

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

[@RaghavPal]

Glad it helped Manreet

[@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

[@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!

[@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.

[@shafeermohamed9495]

I think i need to start watching all your videos for my survival. Keep up the good work.

[@RaghavPal]

So happy & humbled to know this Shafeer, Can get all here - automationstepbystep.com/

[@shafeermohamed9495]

@@RaghavPal Thanks Raghav

[@urmilaravishankar3172]

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

[@RaghavPal]

Thanks for watching Urmila

[@sameerjadav3364]

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

[@playerkidk4308]

You are the best👍👍👍! Very knowledgeable instructor

[@RaghavPal]

Thanks for the kind words Arzu. Humbled

[@shailajagpr7288]

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

[@RaghavPal]

Thanks a lot Shailaja

[@Elmotheswiftie]

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

[@RaghavPal]

You're very welcome..

[@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

[@rameshlingadalli7067]

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

[@RaghavPal]

Glad to know Ramesh

[@dwaynemcpherson5379]

This is the best explanation I've ever heard.

[@RaghavPal]

So happy & humbled to see this

[@voskilltheentertainer2564]

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

[@RaghavPal]

humbled.. Thanks

[@voskilltheentertainer2564]

@@RaghavPal you are welcome

[@ashaojha7380]

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

[@RaghavPal]

Glad to hear that Asha

[@pradeepkasimsetty275]

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

[@RaghavPal]

Glad it helped Pradeep

[@morninggraphics2052]

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

[@RaghavPal]

Most welcome

[@abdullahmusheer4238]

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

[@RaghavPal]

Most welcome

[@jzonlivingson6336]

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

[@RaghavPal]

Thanks Jzon

[@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

[@AntuNeelesh]

It was a very good presentation bro :)

[@RaghavPal]

Thanks

[@Daft_punked]

Agreed,very clear. Thanks!

[@Qalb-e-bano]

kzbin.info/www/bejne/marQla2ueJ1gd6s

[@thatmarathigirl607]

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

[@RaghavPal]

Thanks a lot

[@Orderoll]

Most briliant explanation I've ever seen.

[@RaghavPal]

thanks

[@shilpashravge8083]

Explained in simple manner !! Thanks

[@RaghavPal]

Most welcome Shilpa

[@lisazhou7776]

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

[@RaghavPal]

Most welcome Lisa

[@CLOUD-go6ke]

I love the way you teach. Can you create a video of how I can learn API from scratch to advance level??

[@RaghavPal]

Sure, will do Francis

[@CLOUD-go6ke]

@@RaghavPal Subscribed. All be checking out

[@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

[@xnxlemoned]

You know that it would be a good video and you are going to understand when it’s presented by a Indian guy. 💪🏻

[@RaghavPal]

Thanks for the kind words

[@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

[@revathinarayanan6626]

Very clear explanation.Thanks a lot. I am a python automation tester. I would like to know how api coding looks like. For example, when someone says python module or python definition then I am able to visualize it and the same way I would like to know how api looks like.

[@RaghavPal]

Hi Revathi, this will help you - kzbin.info/aero/PLhW3qG5bs-L9E2KV6vVdB-YTk-sRxmRAB

[@federicolecvine1147]

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

[@RaghavPal]

Most welcome Federico

[@jaylee3941]

Best explanation of an API i've come across!

[@RaghavPal]

Thanks a lot Jay

[@cherukupallinavya7301]

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

[@RaghavPal]

Most welcome!

[@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/

[@aamirkhan-mv4qj]

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

[@RaghavPal]

Glad to know Aamir

[@rasikakumari1655]

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

[@RaghavPal]

Most welcome Rasika

[@vivekfriendly24]

Great explanation now I m clear what is API

[@RaghavPal]

Glad to hear that Vivek

[@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

[@doucefrance5481]

Thank you raghav, you great, clear and neat Can we also say that API work only: à la carte, temporary, on demand?

[@RaghavPal]

Hi, can say based on scenario

[@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

[@sagarvyas1892]

This is such a beautiful explanation. Thank you very much

[@RaghavPal]

Most welcome Sagar

[@vinnu333]

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

[@RaghavPal]

Thanks Vinil, humbled

[@sandeepredhu2035]

Nice explanation. Thanks for clear out many doubts.

[@RaghavPal]

You're welcome Sandeep

[@VNandini-je7tc]

Thank you so much for this simple yet amazing video.

[@RaghavPal]

Glad it was helpful Nandini

[@ayyanzchannel2.0]

Well you are doing a great job. can you please list down all interview questions related to API Testing and Postman. It will be great help for new learners. Please create one video for this if possible. Thanks in advance.

[@RaghavPal]

Sure, I will plan on this. Can check more about these topics here - automationstepbystep.com/

[@navyashreemv3191]

Made it very simple......thank you so much🙂

[@RaghavPal]

Most welcome Navyashree 😊

[@farashaik1208]

Very well explained, please explain the role of Buisiness Analyst with API and microservices

[@RaghavPal]

Sure, will add Fara

[@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

[@shyam3668]

Good, neat and clear explanation. Thank you

[@RaghavPal]

You are welcome!

[@sagarsarkar4207]

A very good explanation on API. Thank you so much . Can you please provide idea of How Appium works in school of basics.

[@RaghavPal]

Sure Sagar check this kzbin.info/www/bejne/e3mcq62BiZmaq6c

[@anupkumar883]

Hi Raghav, very nicely explained the basic of API with a usecase in a 8 min video. I will look for more videos of yours if you have deep dived into APIs

[@RaghavPal]

Thanks for watching Anup, Can find all here - automationstepbystep.com/

[@anupkumar883]

@@RaghavPal thank you so much for sharing this Raghav.

[@aatishr9908]

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

[@RaghavPal]

You are welcome Aatish

[@vybhavis6239]

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

[@RaghavPal]

Glad to know this

[@junitakumar8003]

Thank you for such a simple explanation ❤

[@RaghavPal]

Always welcome Junita

[@npayal4861]

Very nice explanation.Beautifully and simply explained!

[@RaghavPal]

Glad you liked it Payal

[@RashmitaPurkayastha]

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

[@RaghavPal]

Thank you so much Rashmita

[@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

[@cyceediscover]

Thanks for this video! you just gained a subscriber. Where can I get your full videos on API for beginners?

[@RaghavPal]

Thanks, can see all here - automationstepbystep.com/

[@sayuri2814]

Perfect 💯💯 This is so easy than reading long notes

[@RaghavPal]

Thanks for watching Sayuri

[@rishikaraveendran8556]

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

[@RaghavPal]

You're welcome Rishika

[@pavanmanny4523]

Good explanation Sir 😍....Could you pls tell me How can we identify soap API and REST API with examples ?

[@RaghavPal]

Hi Pavan SOAP and REST are two different types of web service APIs that are commonly used in software development. Here are some ways to identify them: SOAP API: WSDL: SOAP APIs typically use the Web Services Description Language (WSDL) to describe the service and its methods. WSDL is an XML-based language used to describe the functionality of a web service. You can identify a SOAP API by looking for a WSDL file or a URL that ends in ".wsdl". XML messages: SOAP APIs use XML messages to send and receive data. SOAP messages are typically more structured and have a strict schema defined in the WSDL file. SOAP headers: SOAP messages also contain SOAP headers that provide additional information about the message, such as authentication and encryption details. Example: Here is an example of a SOAP API request to get weather information: New York United States REST API: HTTP methods: REST APIs typically use HTTP methods such as GET, POST, PUT, and DELETE to interact with resources. You can identify a REST API by looking for URLs that contain the HTTP method name. JSON or XML payloads: REST APIs can use either JSON or XML payloads to send and receive data. JSON is becoming the more popular choice for REST APIs as it is more lightweight and easier to parse. Stateless: REST APIs are designed to be stateless, meaning that each request should contain all the information needed to complete the request. Example: Here is an example of a REST API request to get weather information: GET api.weatherapi.com/v1/current.json?key=API_KEY&q=New%20York&aqi=no In this example, we are using the HTTP GET method to request weather information for New York. The request URL contains the API key and query parameters needed to complete the request. The response will be in JSON format.

[@pavanmanny4523]

@@RaghavPal Thank you very much sir 😍....keep doing this.... you need for everyone who want to become a good automation tester.

[@houdadoukkara547]

Thank you so much for this beautiful presentation.

[@RaghavPal]

So nice of you Houda

[@brijendra78]

Thanks for making API application definitions very for anyone.

[@RaghavPal]

Glad it was helpful Brijendra

[@cosmicdreamz]

Great examples and information. Thank you.

[@RaghavPal]

Most welcome

[@jeyjohnson3246]

Thanks so much, I struggled with finding a clear answer and example

[@RaghavPal]

You're very welcome!

[@addogideon15]

Fantastic. Explained the whole thing for me.

[@RaghavPal]

Glad to know

[@golden9161]

Thanks alot. Want to explore how to create an API.

[@RaghavPal]

I will plan to add on this

[@nishamahendran1532]

Awesome explanation! Simple and easy to understand.

[@RaghavPal]

Glad it was helpful Nisha

[@alokgugi]

Very well explained. Amazing hand writing as well.

[@RaghavPal]

Thank you so much Alok