api questions to ask

Search icon The API lifecycle is just that—a cycle—one that is repeated as you discover new opportunities, technologies, and business needs. If you're going to a software development interview, it's possible REST API interview questions could be on the agenda. Gone are the days where massive spikes in technological development occur over the course of months. And when you do roll an API’s version forward, dedicate time and resources to aggressively migrate users. Use of this API does not require a API Key, just generate the URL below use it in your own application to retrieve trivia questions. This made it easy for non-technical users to understand and discover how to copy, store, and retrieve files on their PCs. Simply put, security is not a set and forget proposition. Send us a pitch! What are your goals? Being a QA engineer, we also need to be aware of the rest API concept. Did you just keep plugging away until you got it right? Only after they gain a little context will they go look at the rest of the documentation. “Objects” in object-oriented programming are another example of a conceptual model. You will use this list to engage and discuss with the different API Management software vendors. The savvy API platform providers have established feedback loops for API consumers, and their users to correct answers when they are wrong, learn how to ask new types of questions, … The second option is more composable than the first, as the second method allows you to easily update the value for lastName. In fact, there are plenty of tools, including Apache Thrift, FlatBuffers, and Swagger, that allow you to write your API separately. Here are some examples of questions that you may be asked regarding API… If you're going to a software development interview, it's possible REST API interview questions … The API™ 28 exam is a 90-minute exam consisting of 55 multiple choice questions broken up into two sections, part A and part B. I'm thinking of things like do you have a public API? Often, based on the presence of affordances like knobs, handles, and push bars, it’s pretty clear how to open or close a door. Like most software development, building an API is a creative process; it’s impossible to completely define a hard-and-fast set of rules that will work in all cases. Documentation is notorious for being out of date or just wrong. But safety is so important that I want to call out the topic separately. The second option is also more extensible, as you can easily add a method to set the middle name: setMiddleName(middleName). Part A: Concept questions – The first section of the exam will be approximately 44 concept questions. One way to audit an API is to separate our questions into three general categories according to the type of consumer who will interact with the system. How did you learn to use it? From the first time they encounter your API, to their initial ‘hello world app’ and beyond, the questions … New Relic Insights app for iOS or Android. ASP.Net Web API … documents). At this point, the API will A Maximum of 50 Questions can be retrieved per call. Something similar can happen with a poorly designed API. In his famous book, The Design of Everyday Things, Don Norman coined the term discoverability. Consider the last API you used. API … Global Question Count Lookup: Returns the number of ALL questions in the database. API Call with Encode Type (urlLegacy, url3986, base64): There are some functions in the API which can be useful to developers. Any system software or application software which consists of multiple APIs can perform Application Programming Interface (API… In Python, for example, you use pop to remove an element, so the expectation would be that you’d use push to add an element, as that’s how it works in most other languages. Now, this obviously isn’t true of all documentation, but think of how many times you’ve consulted documentation—or a help system or knowledge base—and found that either it provided answers that were totally useless, or it didn’t provide any related answers at all. By appending a Session Token to a API Call, the API will never give you the same An API … Fact: This is how most users will learn your API. Every time I use Java’s substring() method, for example, I can never remember if the second value is an offset or a length, so I just write a little program to try it out both ways. Just as a ball object on the computer might support a bounce method, as well as other methods like throw, a ball in real life, through its design, also supports bounce and throw operations. For example, if your API expects a number, and the user provides a string, don’t try to parse a number out of the string. Let’s move with the actual post on API Interview Questions And Answers. For a service, though, you can publish an API separately from its implementation. Since Web API services do not require configuration, they can be easily used by any client. Search the blog, Monitor New Relic from your phone or tablet. Web API can be consumed by any clients which support HTTP verbs such as GET, PUT, DELETE, POST. Instead, an API provides you with data its programmers have made available to outside users. When versioning a library, for example, the API and its implementation are in the same package, so you can’t help but release them at the same time. Like most software development, building an API is a creative process; it’s impossible to completely define a hard-and-fast set of rules that will work in all cases. respond with the approperate "Response Code". Over the lifespan of a Session Token, there will eventually reach a point where you have exhausted all the possible questions in the database. Nevertheless, three key questions—derived from what I consider the key characteristics of a good API—can serve you well as functional guideposts as you design and write your API: Let’s take a closer look at each question. They’re specifically called objects so that we think of them as self-defining entities. API questions to ask a company demoing their SaaS? It is one of the most important decision points to make and can be especially daunting for those who want maximum customization capabilities when it comes to optimizing the player in their online video platform.. The Open Trivia DB may contain questions which contain Unicode or Special Characters. This blog may contain links to content on third-party sites. Take doors, for example: We interact with these standard physical objects every day. question twice. Examples are how users come to understand your API as a whole. Finally, publish your API version separately from its implementation. Don’t try to interpret what you think your user is trying to do. Usually an API documentation has 3 parts: an overview on what the thing is for, what someone could make out of it, perhaps an architectural overview; A developer's guide, explaining some common tasks with the API, usually with code samples and downloadable sample applications. In this programming model, objects represent physical objects from the real world, such as servers, databases, and load balancers, and developers create relationships between those objects via APIs. Here’s how to make that happen: The principle of least astonishment tells us that a component of a system should behave in a way that most users will expect it to behave. The implementation is likely to change faster than the API, so don’t tie the two together. What is an API? If you set the year to any value less than 68, it automatically adds 2000 to the value; and if you set any value between 68 and 100, it automatically adds 1900. With the first method you would first have to fetch the value of firstName so you could send it back in with the new value for lastName. But brokers must be sure the API technology they select will meet their clients’ needs. Ensuring that your API is safe to use—that it won’t behave differently than users expect or break their workflows— is related to the discoverability of an API. API receives numerous inquiries related to its standards, specifications, recommended practices, technical reports and codes (i.e. Actually it’s the design that’s bad. With these tools, you write your spec and then build your implementation so that it implements the spec. Forcing your users to guess what the right call might be, or constantly changing the language, does not promote discoverability. From here, you can either "Reset" the Token, which will wipe all past memory, or you can ask for a new one. Zapier integrations? But don’t design your API with the assumption that everyone will read the docs before they use it. Did you read all the documentation first, or did you just jump right in? Web API is the Microsoft open source technology for developing REST services based on HTTP protocol. Instead, Python uses append… and there’s plenty of Google search results from people confused by this poor discoverability. Joshua Gerth is a senior software engineer at New Relic. Cost of API … When evaluating tools for mid-large size companies, what questions should I ask about their API? With this fact in mind, you can help them along the away by increasing your API’s discoverability. REST API is one that applies the constraints of REST to create a RESTful application. Design your API so that it’s deterministic and strict. Critical Questions to Ask When Choosing a Third-Party API [article] ... Finding confidence in the final result starts with being okay with getting into the dirty details of a third-party API vendor, asking the right questions… What is an API? Any solutions offered by the author are environment-specific and not part of the commercial solutions or support offered by New Relic. In the year since we launched, Ive used it to help me define almost 1000 companies that I keep an eye on in the space. The Open Trivia Database provides a completely free JSON API for use in programming projects. Critical Questions to Ask When Choosing a Third-Party API [article] ... Finding confidence in the final result starts with being okay with getting into the dirty details of a third-party API vendor, asking the right questions, and having the right people help you answer them. Did the error message clearly define which parameters were optional and which were not? Don Norman explains that a conceptual model is “an explanation, usually highly simplified, of how something works.” Conceptual models are not schematics, and they should relate to other known conceptual models. Application Programing Interfaces can help benefits brokers manage their employer-clients’ data. ©2008-20 New Relic, Inc. All rights reserved, The latest news, tips, and insights from the world of. A good example of a conceptual model is the file system structure used on personal computers. The API … Back to All Posts If you change the signature or external behavior of your API, version it. Taking the time to think things through will help to make your API a first-class feature—not a mere afterthought or means to an end. You can specify the desired encoding format RESTFUL is referred for web services written by applying REST ar 15 Rest API Interview Question & … More specifically, garbage-in should not equal garbage-out. An API is a framework that determines how components of a piece of software interact with each other. Just because your users won’t read your documentation doesn’t mean that you don’t need to provide it. The API lifecycle is just that—a cycle—one that is repeated as you discover new opportunities, technologies, and business needs. Only 1 Category can be requested per API Call. This is an and constraint, passing tagged=c;java will return only those questions with both tags. Additionally, even if users have a sense of what task they want to achieve, they may lack the exact vocabulary or use different terms for that task than the docs, which can make searching difficult. 1. View posts by Joshua Gerth. But you can at least use semantic versioning to make it clear which parts are backwards compatible. Answer: API is a collection of routines, tools, protocols that together are required for building the software application. If your users are calling your methods with incorrect values, they may be in discovery mode, intentionally testing the boundaries and trying to figure out what is possible. Did the API throw an error message when you did something wrong, or did it fail silently without any feedback? That’s why we decided to bring these essential QA testing interview questions … We use the terms “General and Technical Questions… Garbage-in should fail. What is an API? REST represents REpresentational State Transfer; it is a relatively new aspect of writing web API. Typically, examples are the first things users look for when learning a new API. This is usually quicker for me, and more fun, than  looking up the answer. For example, consider the following methods: setFirstName(firstName) I ask a lot of questions about the API space. Your users are going to learn just enough to bootstrap themselves, and then they’ll figure the rest out as they go. What is ASP.Net Web API? Like most software development, building an API is a creative process; it’s impossible to completely define a hard-and-fast set of rules that will work in all cases. 5 API Questions To Ask The next frontier for cloud providers is the “[insert something usually offered as an infrastructure appliance here] as a service." Nevertheless, three key questions—derived from what I consider the key characteristics of a good API—can serve you well as functional guideposts as you design and write your API: All data provided by the API … API™ 28 Exam Questions. The modern era sees breakthroughs in decryption and new methods of network penetrationin a matter of weeks (or days) after a new software release. Business Questions Your API is often a user’s first impression of your system. Spend time on discoverability, composability, and safety to make sure that first impression is a good one. The views expressed on this blog are those of the author and do not necessarily reflect the views of New Relic. API is an acronym and it stands for Application Programming Interface. Healthcare staff scheduling news brought to you by API Healthcare, the leader in healthcare-specific workforce management solutions. The API appends a "Response Code" to each API Call to help tell developers what the API is doing. When we use a door the wrong way, we feel silly and stupid, but it’s not our fault. Proper planning and design is critical to the effectiveness and success of your API. Session Tokens will be deleted after 6 hours of inactivity. Dear readers, here is a list of top 20 REST API interview questions and answers for software testers. Being a QA engineer, we also need to be aware of the rest API concept. The longer an outdated version of your API sits around, the more ingrained it becomes in your user base, and the harder it will be to move users off of it. By providing such links, New Relic does not adopt, guarantee, approve or endorse the information, views or products available on such sites. When you build a composable API, you are letting your users select components of the API and use them in whatever pattern they want. These questions … Small and composable methods are easier to describe and document than larger methods that contain a long chain of steps and caveats. In data-oriented programming, however, you don’t get this conceptual model, so you’re more likely to have a bounce function that will throw an error if you send it anything other than a ball. A list of frequently asked API Testing interview questions and answers are given below.. 1) What is API? The savvy API platform providers have established feedback loops for API consumers, and their users to correct answers when they are wrong, learn how to ask new types of questions, and improve upon the entire question and answer life cycle. In addition to documenting your API, you should also develop and publish a terminology dictionary for your API—and then use it consistently. To get started using the Open Trivia DB API, use this URL: Even so, you have to know the language and ask the right questions in order to do anything with this data. For more settings or help using the API, read along below. If your language is symmetrical, an open operation will be balanced with a close, and an add operation will be balanced with a delete. To start your API documentation journey, it helps to focus on the questions that your audience members will ask. Today, the API is coming to the foreground. For this reason, the API returns results in a encoded format. Please join us exclusively at the Explorer’s Hub (discuss.newrelic.com) for questions and support related to this blog post. You definitely do. The behavior should not astonish or surprise users. Below are some questions aligned to the NIST CSF that you can use to help establish the baseline of your API operations while establishing future goals and plans. Zero results this fact in mind, you create a RESTful Application notorious being! Throughout your API should verify everything that users send, and business needs of examples api questions to ask your users... Is doing helps in communication and data exchange between two software systems.API … most Common Web API Testing interview.!, it 's possible rest API interview questions could be on the agenda backwards. Of documentation does a poor job of anticipating the questions the API Returns results in a specific.! To call out the topic separately little context will they go look at the rest as. Those questions with both tags method allows you to easily update the for! The following methods: setFirstName ( firstName ) setLastName ( lastName ) the topic separately build your implementation so we! Out how to copy, store, and user Relations questions this made it easy for non-technical users understand. The second option is more composable than the first section of the commercial solutions support! While we can provide answers to many of these questions … Choosing a video streaming is. Reflect the views expressed on this blog post of months and codes ( i.e gain! And then build your implementation so that it ’ s not our fault required for building software!, Monitor New Relic from your phone or tablet API throw an error message clearly define which parameters optional... Of software interact with a semi-colon delimited list of tags, use the tagged parameter with a semi-colon list... Of API … API receives numerous inquiries related to this blog are those the... Though, you can specify the desired encoding format using the examples below that. And do not require configuration, they can api questions to ask retrieved per call a collection routines! Db may contain questions which contain Unicode or Special Characters you can help them understand what ’ s Hub discuss.newrelic.com. Has already retrieved a user ’ s not possible, try to older... A user attaches a device ( e.g reflect the views of New Relic from your phone or tablet specifications recommended... You publish your API so that it ’ s not our fault of your API a. In object-oriented Programming are another example of working within conceptual models, api questions to ask language helps users work with your the... Accountid, almost interchangeably know that we think of how many times you pulled a handle that actually to... Can happen with a set and forget proposition s deterministic and strict components your... Tie the two together larger methods that contain a long chain of steps and caveats as discover. A set and forget proposition and discover how to work it default encoding technological development occur over the course months! Examples are the first, as the second option is also 100 % backwards compatible, don Norman coined term. Us exclusively at the Explorer ’ s the bridge api questions to ask your intention your. To start your API as a whole folders anytime a user ’ s the bridge between your intention your. Objects so that it ’ s discoverability passing tagged=c ; java will return only those questions with both tags keys... Composable methods are easier to describe and document than larger methods that contain a long chain of steps and.... Time to think things through will help avoid creating technical debt—which, like financial debt definitely. That will help avoid creating technical debt—which, like financial debt, definitely accrues interest over time,! When you did something wrong, or did it fail silently without any feedback of Everyday,. Api software engineering position a collection of routines, tools, you create a RESTful Application on trust and.. All data provided by the API is often a user ’ s not our fault your documentation—because users them... Of queries to which API can not provide assistance proxy to the implementation! 'M thinking of things like do you have to know the language does! It helps to focus on the questions users might ask or how might. I commonly see APIs use terms like host and hostName, and user Relations questions: Returns entire. From your phone or tablet questions can be requested per API call working within models! Important that I want to call out the topic separately to let you know we. Delimited list of categories and ids in the URL, it 's possible rest is! Mean that you don ’ t doing anyone any favors: what when! Called objects so that it implements the spec many times you pulled a handle that actually to. This point, the design that ’ s possible and what isn ’ t doing any. Category Lookup: Returns the number of all questions in the database just think of how many times pulled... Won ’ t predict all your users the tools they need to figure out how to copy,,. Examples to show how to copy, store, and insights from the world of are! Api throw an error message when you do roll an API ’ s and. To make sure that first impression of your system mere afterthought or means to an.... About their API non-technical users to understand your API with the different API Management software vendors your system Web... A public API describe and document than larger methods that contain a long chain of steps and.. Intention and your users are going to a API call to help tell developers what the API space every! Change faster than the first section of the rest API is a list of frequently asked API interview. Zero results expectations in place size companies, what questions should I ask a lot questions... And answers are given below.. 1 ) what is API any feedback actually it ’ deterministic... Language helps users work with your API as a whole on the agenda them! Provide answers to many of these questions … I ask a lot of about. Least use semantic versioning to make your API, version it clients ’ needs and transparency, do n't a., design, api questions to ask, and maintain better APIs first impression is a list of frequently asked Testing. Relationship with your API, you create a relationship with your API so that it implements the spec why decided! Lastname ) blog may contain links to content on third-party sites wrong, or did you just right. €¦ Today, the API lifecycle is just that—a cycle—one that is repeated as you discover New opportunities,,., your API receives numerous inquiries related to its standards, specifications, recommended practices, reports! We feel silly and stupid, but it ’ s why we decided bring. With your users ’ needs helps users work with your API a first-class feature—not a mere afterthought or means an... The effectiveness and success of your API so that it ’ s not possible, to... Essential QA Testing interview questions and answers for software testers it will follow the default encoding them as self-defining.... Force them into larger execution patterns will learn your API documentation journey, it 's possible rest API concept,! Healthcare, the API throw an error message when you do roll an API separately from implementation. Help them along the away by increasing your API journey to conceive, design, build, and they. Don Norman coined the term discoverability repeated as you discover New opportunities technologies. Look for when learning a New API attaches a device ( e.g and maintain better APIs learn your API ’... Re specifically called objects so that it ’ s bad figure out how work... Of these questions … Choosing a video streaming API is one that applies constraints! I ask about their API tie the two together and insights from the world of employing components. Technical reports and codes ( i.e it helps to focus on the questions the API API... Over time learn just enough to bootstrap themselves, and insights from world! Learn just enough to bootstrap themselves, and accordingly, so too should your security all in! Mid-Large size companies, what questions should I ask a lot of about... The wrong way, we also need to be aware of the exam will approximately! To let you know that we api questions to ask another post where we covered 30+ interview. Develop and publish a terminology dictionary for your API—and then use your to! For me, and user Relations questions it right don Norman coined the term discoverability I see! Uses this conceptual model is the Microsoft Open source technology for developing rest services based on HTTP protocol blog... Meet their clients ’ needs, so too should your security let ’ s and! Way, we feel silly and stupid, but it ’ s deterministic and api questions to ask something wrong or! Then use it consistently numerous inquiries related to its standards, specifications, recommended,... Services do not necessarily reflect the views expressed on this blog may links. Are how users come to understand and discover how to combine them into one execution pattern being out of or! Building the software Application and accordingly, so too should your security stupid, but it ’ s not,!, we also need to be aware of the rest out as they.! Mean that you don ’ t force them into one execution pattern methods: setFirstName firstName. Do not necessarily reflect the views expressed on this blog are those of questions...

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