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JSON API vs OData: What are the differences?
Introduction
JSON API and OData are two popular standards for building and consuming APIs. While both are used to facilitate data exchange between systems, there are several key differences that set them apart.
Request and Response Format: JSON API uses a specific format for requests and responses, where data is structured in a consistent way using a standardized set of attributes and relationships. In contrast, OData allows for more flexibility in the format of requests and responses, allowing developers to specify the structure and data they require.
Querying Capabilities: JSON API supports a limited set of querying capabilities, such as filtering, sorting, and pagination. On the other hand, OData provides a rich set of query options, including advanced filtering, sorting, grouping, and aggregation, making it more suitable for complex data retrieval scenarios.
Metadata and Schema Definition: OData provides a built-in mechanism for defining metadata and schema information, allowing clients to discover and understand the available data and operations. JSON API, however, does not have a standardized way of expressing metadata, requiring clients to rely on external documentation or conventions.
Relationship Handling: JSON API has a strict convention for representing relationships between resources, allowing for efficient retrieval and manipulation of related data. OData, on the other hand, provides more flexibility in how relationships are handled, allowing for different representations and navigation paths.
Versioning and Compatibility: JSON API does not have a built-in mechanism for versioning and compatibility, requiring developers to implement their own strategies. OData, on the other hand, provides out-of-the-box support for versioning and compatibility through its versioning scheme and queryable metadata.
Protocol and Transport: JSON API is typically served over HTTP and follows REST principles, using endpoints and HTTP methods for CRUD operations. OData, on the other hand, is a more comprehensive protocol that can be implemented over various transports, including HTTP, MQTT, and others, providing more flexibility in how data is exchanged.
In summary, JSON API and OData differ in their request and response format, querying capabilities, metadata definition, relationship handling, versioning and compatibility support, and protocol and transport options.
Pros of JSON API
Pros of OData
- Patterns for paging, sorting, filtering7
- ISO Standard5
- Query Language4
- RESTful3
- No overfetching, no underfetching3
- Get many resources in a single request2
- Self-documenting2
- Batch requests2
- Bulk requests ("array upsert")2
- Ask for what you need, get exactly that2
- Evolve your API by following the compatibility rules1
- Resource model defines conventional operations1
- Resource Modification Language1
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Cons of JSON API
Cons of OData
- Overwhelming, no "baby steps" documentation1