What is an API Integration ?
What is API integration?
API integration refers to the linkage
established between two or more applications through their respective APIs,
enabling these systems to share data seamlessly. Such integrations are
essential for numerous high-performing organizations, as they maintain data
consistency, boost productivity, and contribute to revenue generation.
What is an API?
An API, or "application programming
interface," is defined as:
“A collection of subroutine definitions,
protocols, and tools for developing application software. Broadly speaking, it
represents a set of well-defined communication methods between different
software components.”
But what does this truly entail?
Understanding APIs and API
integrations
To grasp the concept of APIs and API
integrations, one can draw a parallel with the evolution of international
shipping.
Historically, before World War II, goods
were typically transported as "break bulk," meaning they were loaded
individually onto cargo ships by teams of dockworkers.
However, the landscape of freight shipping
transformed significantly after World War II with the advent of intermodal
freight transport, which introduced standardized shipping methods. As long as a
company's products conformed to a specified container size and weight limit,
they could be shipped globally.
Similarly, APIs function as transport
mechanisms for software. Just as freight is carried in reusable steel
containers, APIs for web services encompass all interactions—requests sent to
and responses received from an application. The use of APIs has surged
dramatically, with over 24,000 currently operational in various environments.
What advantages does API integration offer?
Almost every application utilizes API
integration to some degree, and its advantages encompass:
Effortless data exchange
Each API possesses unique characteristics
and employs various combinations of architectures, protocols, programming
languages, authentication methods, data formats, and storage techniques.
Nevertheless, for APIs to provide their full potential, they must be capable of
interworking. API integration addresses these implementation variances in a
systematic manner, enabling data to flow seamlessly between APIs without the
need for human intervention.
Enhanced operational efficiency
API integration is frequently employed to
automate labor-intensive tasks and optimize essential business workflows. It
also facilitates the consolidation of data from diverse sources, simplifying
the analysis process. Collectively, these advantages contribute to time and cost
savings while boosting productivity and minimizing the likelihood of human
errors.
Improved user experiences
Organizations can incorporate third-party
APIs into their applications to augment functionality without the necessity of
building from the ground up. For example, the development team of an e-commerce
platform may integrate a payment processing API, such as Stripe or Square. By
utilizing public APIs from other entities, teams can innovate swiftly and
confidently, striving to provide the most favorable user experience.
API integration operates through various methods,
necessitating that developers assess their requirements and options prior to
formulating and implementing a strategy. A widely adopted method involves
utilizing a library or software development kit (SDK) associated with the
desired API. SDKs offer pre-written, reusable code segments for tasks such as
authentication, request management, and response interpretation, thereby
streamlining the integration process.
Alternatively, developers may opt to create custom code for
integration purposes. While this method provides greater flexibility, it tends
to be more labor-intensive and susceptible to errors.
For instance,
consider a scenario where you wish to gather contacts via a WordPress-based
website. You could design a form within WordPress that transmits the collected
data through an API call to HubSpot, thereby generating a new contact in your
customer relationship management (CRM) system. If you utilize an external email
automation service, such as Mailchimp, to distribute newsletters to these
contacts, Mailchimp can leverage the HubSpot API to access the contact list for
email distribution.
In many instances, pre-existing integrations are available
to facilitate various integration tasks. However, these solutions often have
limitations regarding their capabilities. When faced with such constraints, it
may be necessary to employ an intermediary tool to manage the communication
between the two systems. This tool would be responsible for retrieving data
from WordPress and forwarding it to HubSpot, or conversely, extracting data
from HubSpot to relay to Mailchimp. Additionally, if you wish to update contact
records in HubSpot to reflect whether specific emails have been dispatched, an
integration must be established to gather information on the recipients of
emails sent via Mailchimp and subsequently relay that data back to HubSpot.
To accomplish this, it is essential to have a mechanism for
executing these API calls. Setting up such a system independently can be
expensive, as it involves not only the execution of API calls but also the
maintenance of the infrastructure, ensuring its security, and scaling it in
accordance with evolving needs.
API Integration Tools
APIs consist of a collection of protocols and standards that
facilitate communication between various software applications.
• MuleSoft
• Boomi
• Zapier
• Postman
• Cloud Support
• Workato
• Clea
• Astero
• Microsoft Azure
• Informatica
• Apigee
• DreamFactory
Types of Web APIs
APIs are widely utilized in web applications, and there are
four primary categories of APIs commonly employed in web services: public,
partner, private, and composite. In this context, the "type" of API
refers to its intended scope of use.
Public APIs
Public APIs are accessible to any external developer or
business, allowing for open utilization. Organizations that adopt a business
model focused on sharing their applications and data with other entities will
create and provide a public API, which is also referred to as an open API or
external API.
Partner APIs.
Partner APIs, in contrast, are restricted to a select group
of authorized external developers or API consumers, serving to enhance
business-to-business interactions. For instance, if a company wishes to share
its customer data selectively with external CRM providers, a partner API can
facilitate the connection between the internal customer data system and those
external entities, prohibiting any other API usage.
Partners are granted specific rights and licenses to access
these APIs, which is why partner APIs typically feature enhanced
authentication, authorization, and security protocols. Additionally,
enterprises usually do not generate direct revenue from these APIs; instead,
partners receive compensation for their services rather than through API usage.
Internal APIs.
Internal APIs, also known as private APIs, are designed
solely for internal use within an organization, enabling the integration of
systems and data within the company. For example, an internal API may link an
organization’s payroll and human resources systems.
Composite APIs.
Composite APIs are designed to merge two or more APIs to
create a series of related or interdependent operations. These APIs can be
advantageous for managing complex or closely related API functions and may
enhance speed and performance compared to using individual APIs.
Final considerations
The integration of APIs represents a crucial component of
contemporary software development, ensuring that applications can operate
cohesively within a larger ecosystem.
However, the implementation of API integrations is
inherently intricate and extensive. This complexity is particularly pronounced
in the realm of product integrations, as clients and potential customers will
expect you to create and sustain an increasing array of integrations between
their applications and your product.
To assist your developers in circumventing many of the steps discussed in this article while still delivering the necessary integrations for your prospects and clients, consider utilizing Merge, the premier unified API solution. By developing to Merge’s Unified API, you can begin to provide numerous, or even hundreds, of product integrations across essential software categories, including CRM, HRIS, ATS, and file storage.
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