Contact us anytime to know more — Abhishek P., Founder & CFO CISIN
APIs offer businesses many business relationships and opportunities by creating a seamless integration between devices.
Let's examine what APIs are, as well as why their popularity is on the rise so rapidly.
What Is An API (Application Programming Interface)?
An Application Programming Interface, commonly referred to by its acronym API, allows software applications to communicate without user interaction by standardizing communication protocols between programs.
An Application Programming Interface enables two software systems that communicate directly between themselves to share information or functionality more seamlessly than ever.
APIs offer great promise to both users (and developers of third-party applications, though we will discuss that shortly): they take over all the heavy lifting behind-the-scenes, providing smooth digital experiences without strain on users or developers alike.
APIs (Application Programming Interfaces) are protocols and definitions which enable software components to communicate using simple commands, acting like messengers between applications to deliver requests instantly with responses back immediately.
If the client can successfully carry out its request, the API will return either what was requested (resource or code) or an acknowledgement code which indicates mission completion.
If, however, an API cannot provide what a client requires - perhaps they requested something nonexistent or without access - then an error message will be generated instead.
Access control on servers should always be the top priority, which makes an API important in this regard. An API doesn't provide complete programs or their code; rather, it only presents data available to other users.
API Calls
API calls occur when client applications send requests to API servers for services they require, including any and all subsequent steps, such as retrieval from servers to deliver information to clients.
Request Methods
Clients typically expect their server to fulfill basic functions for them, with requests written into URLs for easy communication between client-server communication via Hypertext Transfer Protocol (HTTP).
Four common requests methods:
- GET: To retrieve an item.
- POST: Create a new resource using this command.
- PUT: To update or edit an existing resource.
- DELETE: To delete a resource.
Still confused? Try an analogy. APIs have often been likened to ordering food at a restaurant: diners represent clients while waiters represent API, and servers represent servers; you select your meal from the menu and give it to the waiter, who in turn gives your order directly to the chef who prepares and executes your dish allowing you to enjoy every bite without the effort it required from you personally.
Imagine this: the restaurant becomes overcrowded as more patrons visit. What are its options, then? API keys provide one such solution.
What Is An API Key?
API keys are unique identifiers used to authenticate API calls. A series of letters and numeric characters known as an "API Key" identifies its owner (i.e.
the website or application making requests). Based on permission levels granted or denied to this client, requests could either be approved or denied depending on if their request falls under its scope or not; these keys also track usage metrics to facilitate billing/usage purposes.
This method may not be as secure, but it has distinct business advantages over basic authentication that requires only a username/password combination.
Only those with keys can gain entry to an Application Programming Interface of a company, giving them control over how many calls are made and ensuring that only trusted clients use its resources.
Continue our previous example; imagine an API key as a reservation at an exclusive restaurant, where reservations help maintain capacity in order to serve all guests efficiently and effectively.
By restricting access to API resources so only clients with API Keys may use them, your software will remain safe while meeting all requests as efficiently and quickly as possible.
What Are APIs Used For?
Suppose you want to embed Instagram images on an ecommerce app or give blog readers instant access to thousands of hotels through an API - that can all be accomplished.
If your Star Wars Fan Fiction Site wants a Yoda Translator to feature, too, there's likely an API available just for that task too. APIs have numerous business uses in businesses:
- Data Sharing: When programs require information from third parties - like travel apps accessing flight details from an airline or eCommerce stores needing payment details from payment processors - data can be shared securely using API.
- App Integrations: They occur when two digital applications work cohesively together.
- Embedding Content: When embedding non-host material like YouTube videos or scripts from third parties like Google Analytics onto websites hosted by different companies, requests made directly to them for content retrieval must be sent out in order to embed that particular element.
- Internal Systems: APIs don't just share data externally - businesses often divide up their software infrastructures into smaller components that communicate via APIs. We will explore more APIs and applications below.
API Examples
Chances are you've heard about APIs without searching an Application Programming Interface marketplace or understanding much about them.
Here we examine a few specific examples to make you familiar with all their information and functionality available to you.
Twitter APIs
Engage website visitors if your company loves Twitter by taking advantage of Twitter APIs on your website. This tool will drive engagement while adding value.
Twitter offers APIs to search through its massive archive.
Twitter APIs can be used to find old tweets, embed timelines and public Tweets into your website or application, create and manage ads programmatically, filter and stream Tweets live, provide personalized customer service via direct messages, subscribe real-time activity of 15+ accounts.
You can also find a wide range of essential tools and resources to help you maximize the potential of this global network of communication.
Instagram APIs
Instagram provides several APIs that can assist with content, analytics and reporting needs. Integrating Instagram images created by your customers into your app could be one approach for using user-generated content (UGC) as social proof that can compel leads to convert.
Developers can use this platform to create apps and services targeted at three different groups: individuals who want to share their content with third party apps, brands and advertisers that need to manage their media rights and understand their audience; and publishers and broadcasters looking to discover new content and obtain digital rights.
YouTube APIs
These APIs give you access to YouTube's vast library of videos and add functionality to websites or applications.
Here are just a few reasons you might use YouTube APIs: to play videos within your app, enable users to search content, upload videos directly onto YouTube's platform, create and manage playlists, gain insight into user interactions with videos/channels uploaded directly by YouTube, schedule live broadcasts as well as much more! In order to unlock its full potential, however, a key will be required - learn more here.
Spotify Web APIs
Spotify Web APIs allow music professionals to add music players directly into their application or website using Spotify Web APIs for business use.
Spotify provides numerous APIs that give access to their Data Catalog of albums, artists and tracks - these APIs include albums, artists and tracks related directly to users, such as their private playlists or personal data. Users will need to grant your application access in order to retrieve this data directly related to them, e.g. private playlists.
Functionalities mirror those found on Spotify's native platform; your users can access genres, categories and new releases using the Browse Application Programming Interface while Spotify provides APIs for Episodes, Playlists Library Follow.
Bewildered? Spotify has put together an exhaustive list of applications which demonstrate how their APIs are utilized by developers.
Google Maps APIs
A location-based app should always include street views of properties by using Google Maps SDKs, as this makes your application stand out in the marketplace.
Google provides a vast library of APIs for use across many applications and industries, from user navigation and location tracking to adding Places data directly into websites or even ride sharing applications.
Google offers different kinds of APIs depending on the platform (web, iOS or Android), so make sure to choose the most relevant for your project.
Similar to most APIs listed above, these APIs charge according to usage and offer high-level functionality that justifies their price tag.
PayPal APIs
PayPal provides a wide array of APIs you can leverage to integrate its functionality directly into apps or websites without forcing users to visit its main portal.
Choose between Billing Plans Application Programming Interface and Catalog Products API, as well as Invoicing Orders and Payments API.
PayPal APIs can assist with every aspect of website creation, whether an ecommerce store or membership website is in development.
PayPal also has an extensive support system where developers working on PayPal integration can find answers to commonly asked questions or find assistance from peers working together on software integration issues.
APIs come in all forms imaginable - operating system-specific APIs, as well as website APIs, are among those available - to further understand their potential, let's look at the classification of APIs based on who uses them and for what purpose.
Want More Information About Our Services? Talk to Our Consultants!
Types Of APIs
APIs can be divided into various groups based on who they're designed for and their intended scope, with developers often encountering four primary categories of APIs in use today:
- Private APIs: These APIs are exclusive for internal use within an organization to increase productivity and transparency; third-party developers cannot utilize them.
- APIs For Partners: APIs tailored specifically towards partners can only be shared if there exists an established business-partner relationship between both. Businesses use these APIs as a way of controlling who gains access to resources as well as how these resources are being utilized.
- Public APIs: Public APIs can also be accessed externally by external users, and some open APIs may even offer free use, while others charge fees depending on usage patterns.
- Composite APIs: Composite API enables you to combine requests or calls and receive one response from multiple servers at the same time, such as when gathering information from multiple applications at once or saving five API calls altogether. Our API guide contains more information.
Why Use An API?
A business may find itself wondering why an API would make financial sense; why it pays for resources they could easily produce themselves; why it shares assets with competitors; why to create one solely for its own employees.
These questions might raise eyebrows, but that does not have to be your answer - that should all depend on you.
All great questions. Let's divide API benefits into two groups - consumers and suppliers of API. API Consumer Benefits APIs can be used for anything from accessing another server or automating tasks to automating certain activities.
API consumers use each type of API in various ways.
Productivity
Many companies create APIs of their own for several reasons. APIs help improve transparency, streamline operations and foster collaboration within companies.
User Satisfaction
Companies strive to deliver an exceptional user experience for their customers. Since it's virtually impossible for any one product or service to meet all customer expectations and needs simultaneously, businesses employ APIs in order to enhance functionality within their product.
Innovation
APIs enable developers, whether third-party vendors or employees of your organization, to repurpose existing software components instead of recreating what has already been accomplished.
After exploring the advantages of APIs, let us address why you might consider developing one and sharing it with partners or the general public.
API Providers Benefits
API providers open up business opportunities as well as other advantages over time - benefits which extend far beyond simple Application Programming Interface utilization.
Let's examine each one below.
Earnings
Money is always the answer - Google, and Facebook are just three companies among thousands that make their APIs public and monetarist so they can become additional revenue streams for companies such as theirs.
APIs may even represent primary sources of revenue generation in some instances.
Scaling
Sharing what you know best will allow an entire network of users, from third-party developers and consumers, to become dependent upon the data and features provided by APIs - increasing adoption for your main platform while expanding your clientele base and creating digital economy opportunities.
Amazon Web Services stands out amongst many similar platforms as an example. This technology platform enables developers and companies to construct applications using Amazon's platform; millions use this service worldwide.
Add Even More Innovation
Again, we will outline innovation benefits but with an added twist: we previously explored how Application Programming Interface users benefit from third-party solutions that allow them to focus their energy and time on developing products rather than reinventing themselves.
Most API providers and consumers benefit from having an equal relationship. Twitter may have had an imperfect user interface in its early days; TweetDeck was an independent app which built its own interface on top of it using its public API to offer all users a superior Twitter experience - this was what is known as a win-win scenario.
Read More: Why API Integration Services Are Important
How To Use An API?
So you've decided to test APIs - what next? Before creating your own, it makes sense to experiment with other available APIs before trying them within your company.
Let's go over some fundamental principles on how best to utilize an API.
Select An API
To get your business going with API integration, first, find one suitable to integrate. For instance, Facebook API or another major platform could already have caught your eye, while price filters allow you to narrow your search further - perhaps starting off with low-cost or free APIs before expanding to premium services later on.
Secure An API Key
As previously discussed, an API Key serves to authenticate you as an individual user, set access permissions for you, and record interactions between API users and services.
Some APIs offer their keys for free, while others charge clients to obtain one. Either way, in either situation, you must first register with the service, and they will provide an identification number which can then be used when calling their APIs.
Keep your API key as confidentially as you would keep a password; an attacker could make API calls in your name if your key becomes public knowledge, leading them to make API requests using it without you knowing.
Should such an incident take place, however, void the existing one and obtain another one immediately.
API Documentation Can Be Found On Its Respective Website
API documentation serves as an instruction manual on how to integrate and utilize an API, usually including examples and tutorials as well as all pertinent details regarding the usage of an API.
Consult the documentation in order to acquire your key, send requests, and learn which resources can be retrieved from its server.
Good API documentation is key. Even though your company offers an impressive API, if developers cannot understand how it should be utilized quickly, then its value diminishes significantly.
Create Your First Request
Now it is time to write your initial request; an HTTP client provides an easy and effective means of structuring and sending requests.
Although reading and understanding API documentation will help, only limited coding experience will be necessary in order to succeed with this exercise.
At this stage, online tutorials are invaluable resources. This YouTube video, for instance, shows how an API can help retrieve location data from Google Maps before using those coordinates to locate photos nearby on Instagram.
Connect Your App
After becoming more proficient with sending requests to APIs, the next step should be connecting your app with them.
As marketers, we should not worry too much about this as developers use different programming languages like Python, JavaScript, NodeJS or PHP in doing this work. Your API of perfect choice likely falls within a subcategory known as REST APIs that is intended to make using it simpler and quicker.
REST APIs
REST APIs follow an architectural style known as Representational State Transfer to make their APIs easy to discover and use, with resources making up REST's services accessible via unique URLs that make their data and functionality easily discoverable and usable - you can request resources with REST APIs like Open Weather Map API by providing their respective URL.
An API typically assigns each resource two URL patterns - one to specify only that resource and another that refers to all resources; these endpoints are often called endpoints because they come at the end.
Each endpoint also offers a list of actions the client can ask the server to carry out; these could range from listing or creating resources to retrieving and updating an item, etc.
To instruct the server on what action to take, clients should include an HTTP verb such as (GET, Post, Put DELETE).
Client and server can utilize three data formats when exchanging information: HTML (Hypertext Markup Language), XML, and JSON are three formats commonly used when communicating over the web.
REST API Example
WordPress offers a REST-based API which enables developers to remotely create, update and read WordPress content by sending JSON objects between clients and servers.
By giving developers more freedom in structuring data in ways which make an access and exit simpler from a server and more seamless for end-users, more time can be dedicated to designing user-centric user experiences.
SOAP Vs REST
REST is often contrasted with Simple Object Access Protocol, another approach for building applications with HTTP.
REST offers an easier alternative that utilizes less code and offers greater structural and logic flexibility; one reason people prefer REST over SOAP may be its convention-rich structure that still leaves room for creativity within your designs.
If you are trying to decide between SOAP and REST APIs for your API needs, here's a simple test: If flexibility is what matters to you, then choose REST guidelines; otherwise, opt for standardization - in that instance, SOAP may be best.
Are APIs Safe?
Asking this question of an API's safety can be like asking whether a web app is secure; its outcome ultimately relies on its implementation and lifecycle management practices.
Security gaps are easy to form due to API complexity and quantity, creating security gaps easily. API defense should not differ from any other aspect of cybersecurity: API defenders need to protect every API, while attackers only require exploiting one vulnerability to gain entry.
An organization may use hundreds or even thousands of APIs that connect internal applications together and connect them to the external world.
Without proper safeguards in place, APIs could provide entryways for hackers or cyber thieves to gain entry and gain access to sensitive data or applications that they should never have had access to in the first place.
API adoption has outshone organizations' ability to secure and administer APIs. An organization may spend years installing firewalls, segmentation and vulnerability management programs - yet an insecure API could allow attackers to circumvent many of these safeguards and compromise its system entirely.
Failing to properly administer APIs could put the security measures of your network at risk.
Disadvantages Of APIs
Knowledge Is Key
For successful use of an API web server interface, businesses require specific knowledge in order to utilize its full potential.
An effective API acts like any programming tool would, so businesses must understand its functionality to access and manage data via it. As it appeals to Businesses, they will either need to hire someone with this expertise or invest in training existing staff; since such costs could quickly add up over time, it would be wiser for companies to choose alternative forms of data storage over an API web server interface.
Compatibility Issues
One potential drawback of using API interfaces on web servers is compatibility issues. An API acts as an intermediary that connects businesses and web servers, so if these two are incompatible, data could become difficult or inaccessible for management or access.
Businesses should choose an API web server compatible with their server to mitigate this risk - by conducting thorough research into both their API and server to make sure both are compatible with each other.
Costs Utilizing
An API web server interface can be prohibitively expensive for businesses. Businesses will need to purchase the necessary hardware and software as part of using an API web-server interface, as well as training staff on its use.
Given its cost implications, businesses should carefully consider their decisions prior to adopting such an approach.
Maintenance
A web server interface involving an API needs regular upkeep in order to remain secure and compatible with web servers, with businesses needing to ensure staff members receive proper training on its use before implementation can become time-consuming and expensive.
Businesses should bear this cost into consideration before making their final decision about an interface API web server interface implementation plan.
Time-Consuming
Employing an API web server interface may take considerable time. Businesses should ensure compatibility of both API and server and train employees on how best to utilize its capabilities before investing time into creating such an interface.
Businesses should carefully consider this before opting for such an option.
Utilizing an API Web Server interface comes with some restrictions and drawbacks.
As it serves as the conduit between businesses and web servers, an API may not have the capabilities of managing or accessing certain types of data or features on their host web servers; businesses should therefore carry out extensive research before selecting their API and host in order to minimize risk - make sure the API can access what data types it's required for. Businesses should do a full risk evaluation on both aspects to make sure everything matches up smoothly between both platforms - API + compatibility + API = success.
Want More Information About Our Services? Talk to Our Consultants!
Conclusion
Let's keep this straightforward - both providing and consuming APIs offer numerous advantages to both providers and recipients, creating new business models and ideas which spur innovation and creativity within the digital economy.
These APIs connect applications of all sizes ranging from startups to government agencies, creating connections among them that foster innovation and creativity for increased growth of innovation in this digital sphere.
APIs have the power to transform both how businesses do business and how they think about their enterprise. APIs have altered how these businesses consider their endeavor.
