🔌Data API

NEW

An application programming interface that provides structured, authenticated access to data and metadata.

DESCRIPTION

A data API exposes datasets and related metadata via programmatic endpoints, often using REST or GraphQL, enabling secure, self-service data consumption. It commonly supports filtering, pagination, query parameters, and result formats like JSON or CSV. Robust data APIs enforce authorization, rate limits, and SLA-backed availability. Specifications such as OpenAPI standardize documentation and client generation. Data APIs reduce coupling, enhance interoperability, and help manage data access across teams and external consumers.

ALTERNATIVE DEFINITIONS

CKAN

The CKAN Data API provides access to the data records stored in CKAN resources.

Describes a concrete Data API focused on dataset records within CKAN.

Source

Socrata

The SODA API is a RESTful API for accessing data sets and provides features like filtering, paging and sorting.

Highlights RESTful access and common query features for open data portals.

Source

AWS

The RDS Data API provides a secure HTTP endpoint to run SQL statements against Aurora Serverless clusters.

Shows a vendor-specific Data API enabling SQL execution over HTTP.

Source

RELATED TERMS

REST API GraphQL OpenAPI JSON gRPC API Gateway Pagination Rate Limiting Data Service Software Development Kit

COMPETING TERMS

Direct Database Access

RELATIONS

• Broader: API

KNOWLEDGE AREAS

Data Integration & Interoperability Platform & Tooling Software Engineering Data Services Data Engineering

TARGET AUDIENCE

Software Developer Data Engineer Analytics Engineer Full Stack Developer Solution Architect BI Specialist

EXTERNAL SOURCES

• Wikipedia - Web API
• OpenAPI Initiative - OpenAPI specification for APIs
• CKAN - CKAN Data API documentation
• Socrata - Open data API developer docs

TOP QUESTIONS

What is a Data API?

A Data API is a programmatic interface that exposes datasets and metadata through endpoints, enabling secure, structured queries and integration with applications.

Category: Definition

Why use a Data API instead of direct database access?

It decouples consumers from internals, enforces authorization, standardizes contracts, and scales via caching and rate limiting, improving reliability and security.

Category: Relevancy

How is a Data API secured?

Use OAuth or API keys, enforce scopes, rate limits, and input validation; log access and monitor anomalies for defense.

Category: Requirements

What query features are common in Data APIs?

Filtering, pagination, sorting, field selection, aggregation, and schema discovery are typical. Some support SQL-like queries or GraphQL.

Category: Example

What mistakes occur with Data APIs?

Unbounded queries, missing indexes, poor pagination, weak authentication, and undocumented changes cause performance and reliability issues.

Category: Mistakes

What are the risks of exposing a Data API?

Data leakage, denial-of-service, schema drift, and cost overruns. Strong governance and observability mitigate risks.

Category: Risks

What are alternatives to a Data API?

Direct database access, batch exports, and file feeds. APIs usually provide better control and discoverability.

Category: Alternatives

How to design a good Data API?

Define contracts, document with OpenAPI, support pagination and filtering, enforce auth, and monitor performance and errors.

Category: HowTo

Where to start learning Data APIs?

Review OpenAPI specs, CKAN/Socrata docs, and build a small REST service that exposes a dataset.

Category: Learning