What does rails-api/active_model_serializers do?

Active Model Serializers is a Ruby on Rails JSON serializer used to transform model objects and associations into structured JSON responses for APIs. It functions as a model-to-JSON mapper and response formatter that decouples internal database schemas from external API contracts.

What are the main features of rails-api/active_model_serializers?

The main features of rails-api/active_model_serializers are: Model to JSON Conversion, Response Formatting, Serialization Contexts, Authorization-Based, Nested Serialization, Association Definitions, Attribute-Based Access Control, Serialization Attribute Restrictions.

What are some open-source alternatives to rails-api/active_model_serializers?

Open-source alternatives to rails-api/active_model_serializers include: rails/jbuilder — Jbuilder is a JSON template engine and builder for Ruby that provides a domain specific language for generating… netflix/fast_jsonapi — fast_jsonapi is a Ruby object serializer designed to transform complex backend data objects into structured JSON… python-attrs/attrs — attrs is a Python library that automatically generates initialization, representation, equality, hashing, and ordering… ruby-grape/grape — Grape is a RESTful web service framework for Ruby designed for building structured APIs. It provides a declarative… api-platform/core — This project is a PHP-based framework designed for the automated development of standardized web services. It… apache/fory — Fory is a cross-language serialization framework and binary data serializer designed to convert complex object graphs…

Active Model Serializers - serialize Rails mo…

Features

Model to JSON Conversion - Transforms model objects into structured JSON representations for API responses using a customizable process.
Response Formatting - Transforms database models into structured JSON responses for web APIs using a customizable serialization process.
Serialization Contexts - Passes an authorization context into the serializer to customize output based on user permissions.
Authorization-Based - Controls which data fields are visible in a response based on the current user identity or authorization level.
Nested Serialization - Automatically embeds related database records into API responses by recursively applying serializers.
Association Definitions - Provides a descriptive language to specify how related models are included and represented in the JSON output.
Attribute-Based Access Control - Controls which attributes and associations appear in the output based on the current authorization context.
Serialization Attribute Restrictions - Restricts specific attributes and associations based on the current user identity or authorization level.
Class Instance JSON Serializers - Transforms model or plain Ruby objects into JSON representations using dedicated serializer classes.
Adapter-Based Output Formatting - Uses a pluggable adapter pattern to transform internal data structures into specific JSON specifications.
Computed Properties - Allows the definition of synthetic properties via custom logic within serializer methods.
Attribute-Mapping Layer - Decouples the external API contract from the internal database schema by mapping model attributes to custom keys.
Contextual Serialization Logic - Passes external context into the serialization process to filter attributes or associations based on user permissions.
Model-to-JSON Mappers - Decouples database schemas from API contracts by mapping internal attributes to custom JSON keys.
Specification Adapters - Uses a pluggable adapter pattern to format JSON responses according to specific API specifications.
Attribute Key Mapping - Decouples the external API contract from the database schema by mapping internal attributes to custom JSON keys.
Specification Adapters - Provides a formatting layer that organizes serialized data to follow specific standards like the JSON API specification.
JSON APIs - Builds API endpoints that adhere to specific data standards using pluggable adapters.
JSON Structure Adapters - Adjusts the output structure using adapters to satisfy specific API standards or root key requirements.
Rails JSON Serializers - Transforms Ruby on Rails model objects and associations into structured JSON responses for APIs.
Relationship Mapping - Defines how associated models are linked or embedded in JSON outputs to manage payload size.
Resource Sideloading - Flattens associated data into a separate root-level collection to avoid deep nesting and reduce payload duplication.
Response Formatters - Adds pagination metadata and authorization-based filtering to Rails controller responses.
API Response Optimizations - Reduces server load by caching serialized JSON data and monitoring conversion metrics.
Serialized Output Caching - Stores serialized object results as JSON to reduce computation time for repeat requests.
Fragment Caches - Provides fragment caching to store specific serialized object outputs and bypass redundant computation for repeat requests.
Resource Serialization Formats - Processes collections of resources by applying specific serializers to each item in the group.
Casing Transformers - Implements global and class-level formatting rules to convert attribute keys into specific casing styles.
Object Serialization - Applies consistent serialization behavior to non-database plain Ruby objects for uniform API responses.
Computed Attribute Derivation - Allows the definition of virtual attributes that are computed via custom logic during serialization.
Associated Data Sideloading - Implements sideloading of associated records to simplify client-side parsing and reduce payload duplication.
Association ID Embedding - Provides the ability to embed only identifiers for associated objects to minimize response size.
Document Structure Control - Controls the final structure of the JSON response, allowing for flat lists or specific specification layouts.

Open-source alternatives to Active Model Serializers

Similar open-source projects, ranked by how many features they share with Active Model Serializers.

rails/jbuilder
rails/jbuilder
4,414View on GitHub
Jbuilder is a JSON template engine and builder for Ruby that provides a domain specific language for generating structured JSON objects. It serves as a view helper to transform data into JSON format using logic, conditionals, and loops. The project enables the construction of complex data structures through the use of partials and nested objects to maintain modularity. It includes capabilities for runtime key transformation, allowing attribute keys to be converted between different naming conventions such as snake case and camel case. The system supports dynamic JSON structuring with the abi
Ruby
View on GitHub4,414
netflix/fast_jsonapi
Netflix/fast_jsonapi
5,036View on GitHub
fast_jsonapi is a Ruby object serializer designed to transform complex backend data objects into structured JSON representations. It specifically implements the JSON:API format to ensure consistent data exchange between servers and clients. The library functions as a compound document generator, allowing related resources to be embedded within a single response to minimize network requests. It uses a class-based schema definition to decouple internal database models from the public API representation. The project includes a command-line tool for generating serializer boilerplate by scanning
Rubynot-maintained
View on GitHub5,036
python-attrs/attrs
python-attrs/attrs
5,799View on GitHub
attrs is a Python library that automatically generates initialization, representation, equality, hashing, and ordering methods from declarative class attribute definitions. At its core, it provides a class decorator metaprogramming framework that intercepts class creation to rewrite the class body, producing dunder methods without manual boilerplate. The library includes a comprehensive attribute validation toolkit with built-in validators for type checks, range constraints, regex matching, length limits, and logical composition of validation rules. The library distinguishes itself through it
Python
View on GitHub5,799
ruby-grape/grape
ruby-grape/grape
9,990View on GitHub
Grape is a RESTful web service framework for Ruby designed for building structured APIs. It provides a declarative syntax for routing and parameter validation, allowing developers to map HTTP verbs to logic through a domain specific language. The framework is distinguished by its built-in support for service versioning, which can be managed via URL paths, custom headers, or request parameters. It also features a modular architecture that allows large services to be constructed by nesting smaller API definitions. The project covers comprehensive API lifecycle capabilities, including schema-dr
Ruby
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