Usergrid is an open-source Backend-as-a-Service (“BaaS” or “mBaaS”) composed of an integrated distributed NoSQL database, application layer and client tier with SDKs for developers looking to rapidly build web and/or mobile applications. It provides elementary services (user registration & management, data storage, file storage, queues) and retrieval features (full text search, geolocation search, joins) to power common app features.
 
It is a multi-tenant system designed for deployment to public cloud environments (such as Amazon Web Services, Rackspace, etc.) or to run on traditional server infrastructures so that anyone can run their own private BaaS deployment. For architects and back-end teams, it aims to provide a distributed, easily extendable, operationally predictable and highly scalable solution. For front-end developers, it aims to simplify the development process by enabling them to rapidly build and operate mobile and web applications without requiring backend expertise.

Usergrid is an open-source Backend-as-a-Service (“BaaS” or “mBaaS”) composed of an integrated distributed NoSQL database, application layer and client tier with SDKs for developers looking to rapidly build web and/or mobile applications. It provides elementary services (user registration & management, data storage, file storage, queues) and retrieval features (full text search, geolocation search, joins) to power common app features.

Usergrid - The BaaS Framework you run

Dropwizard is a Java framework for developing ops-friendly, high-performance, RESTful web services. It pulls together stable, mature libraries from the Java ecosystem into a simple, light-weight package that lets you focus on getting things done. 
 
Dropwizard has out-of-the-box support for sophisticated configuration, application metrics, logging, operational tools, and much more, allowing you and your team to ship a production-quality web service in the shortest time possible.
 
Dropwizard straddles the line between being a library and a framework. Its goal is to provide performant, reliable implementations of everything a production-ready web application needs. Because this functionality is extracted into a reusable library, your application remains lean and focused, reducing both time-to-market and maintenance burdens.

Dropwizard is a Java framework for developing ops-friendly, high-performance, RESTful web services. It pulls together stable, mature libraries from the Java ecosystem into a simple, light-weight package that lets you focus on getting things done. 

dropwizard - A damn simple library for building production-ready RESTful web services.

chi is a lightweight, idiomatic and composable router for building Go 1.7+ HTTP services. It's especially good at helping you write large REST API services that are kept maintainable as your project grows and changes. chi is built on the new context package introduced in Go 1.7 to handle signaling, cancelation and request-scoped values across a handler chain. 
The focus of the project has been to seek out an elegant and comfortable design for writing REST API servers, written during the development of the Pressly API service that powers our public API service, which in turn powers all of our client-side applications.

chi is a lightweight, idiomatic and composable router for building Go 1.7+ HTTP services. It's especially good at helping you write large REST API services that are kept maintainable as your project grows and changes. chi is built on the new context package introduced in Go 1.7 to handle signaling, cancelation and request-scoped values across a handler chain.

chi - Lightweight, idiomatic and composable router for building Go HTTP services

The Dingo API package is meant to provide you, the developer, with a set of tools to help you easily and quickly build your own API. While the goal of this package is to remain as flexible as possible it still won't cover all situations and solve all problems. The package includes Content Negotiation, Rate limiting, Multiple Authentication Adapters, Error and Exception Handling, Response Transformers and Formatters, API Versioning and lot more.

Dingo API  - A RESTful API package for the Laravel and Lumen frameworks

The most advanced open-source Content Management Framework to build powerful API with no effort. It is elegant, entirely customizable and fully extensible admin panel, Built on top of Node.js and supports any front-end frameworks (React, Vue, Angular, etc.), mobile apps or even IoT. Halfway between a CMS and a framework, Strapi takes advantages of both worlds. A powerful dashboard to easily manage your content with a flexible framework layer to develop and integrate specific features.

Strapi - Node.js Content Management Framework (headless-CMS) to build powerful API with no effort.

Micro is an asynchronous HTTP microservices. It is designed for usage with async and await. It does not have middleware, With all dependencies, the package weighs less than a megabyte.

Micro — Asynchronous HTTP microservices

RestSharp is probably the most popular HTTP client library for .NET. Featuring automatic serialization and deserialization, request and response type detection, variety of authentications and other useful features, it is being used by hundreds of thousands of projects. RestSharp passed over 32 million downloads on NuGet, with average daily download count of 10,000. It's being used by many popular OSS projects, including Roslyn and Swagger.
 
Features: 
<ul>
<li>JSON, XML and custom serialization and deserialization</li>
<li>Variety of overloads to make synchronous and asynchronous HTTP calls</li>
<li>Basic, OAuth 1, OAuth 2, JWT, NTLM are supported. </li>
<li>Almost every aspect of an HTTP call can be customized</li>
<li>Send objects as the request body in JSON or XML, or as a form. Upload and download files as bytes or as streams.</li>
<li>Add query, URL segment, body, form or header parameter using an easy and fluent API</li>
</ul>

RestSharp is probably the most popular HTTP client library for .NET. Featuring automatic serialization and deserialization, request and response type detection, variety of authentications and other useful features, it is being used by hundreds of thousands of projects. RestSharp passed over 32 million downloads on NuGet, with average daily download count of 10,000. It's being used by many popular OSS projects, including Roslyn and Swagger.

RestSharp - Simple REST and HTTP API Client for .NET

Hoppscotch is an open source API development ecosystem. It is light weight and can send fast requests and get/copy responses in real-time. It supports WebSocket, Server Sent Events, Socket.IO, MQTT and GraphQL. You can also install as a PWA (Progressive Web App) on your device.

Hoppscotch - Open source API development ecosystem 

Fiber is an Express inspired web framework built on top of Fasthttp, the fastest HTTP engine for Go. Designed to ease things up for fast development with zero memory allocation and performance in mind. New gophers that make the switch from Node.js to Go are dealing with a learning curve before they can start building their web applications or microservices. Fiber, as a web framework, was created with the idea of minimalism and follows the UNIX way, so that new gophers can quickly enter the world of Go with a warm and trusted welcome.

Fiber - Express inspired web framework written in Go

Armeria is your go-to microservice framework for any situation. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard. Armeria is capable of running services using different protocols, all on a single port. No need for any proxies or sidecars.
 
Armeria's documentation service allows you to browse the complete list of services and their documentation from a web browser. It provides various service discovery mechanisms, from Kubernetes-style DNS records to ZooKeeper data nodes.
 
Armeria is from the creator of <a href="https://netty.io/">Netty</a>&nbsp;and his colleagues at <a href="https://engineering.linecorp.com/en/">LINE</a>

Armeria is your go-to microservice framework for any situation. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard. Armeria is capable of running services using different protocols, all on a single port. No need for any proxies or sidecars.

Armeria - Build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard

Spark is a micro framework for creating web applications in Kotlin and Java 8 with minimal effort. It is a simple and expressive Java/Kotlin web framework DSL built for rapid development. Sparks intention is to provide an alternative for Kotlin/Java developers that want to develop their web applications as expressive as possible and with minimal boilerplate. With a clear philosophy Spark is designed not only to make you more productive, but also to make your code better under the influence of Spark’s sleek, declarative and expressive syntax.

Spark - A simple expressive web framework for java

A PHP-based self-hosted URL shortener that can be used to serve shortened URLs under your own domain. Keep control over all your shortened URLs, by serving them under your own domains, using this simple yet powerful tool. Every time a user clicks on a short URL, Shlink will collect anonymized visit stats and geolocate the visitor.

Shlink - The definitive self-hosted URL shortener

Parse is the complete application stack. It helps to build applications faster with object and file storage,
user authentication, push notifications, dashboard and more out of the box. Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js.

Parse - The Complete Application Stack

CloudBoost can power your app's backend, including data storage, user authentication, real-time notifications, search and more. It provides single framework for 
Data-Storage / JSON Storage / BLOB Storage, 100% data ownership, Realtime Search, Cache, Queues, Horizontally scalable etc.
 
CloudBoost is an Open Source Serverless Platform to build Scalable Apps. It provides complete backend support and helps developers to concentrate only on their App.

CloudBoost can power your app's backend, including data storage, user authentication, real-time notifications, search and more.  It provides single framework for  
Data-Storage / JSON Storage / BLOB Storage, 100% data ownership, Realtime Search, Cache, Queues, Horizontally scalable etc.


CloudBoost - One Complete Serverless Platform to  build your app in half less time

Deployd is the simplest way to build realtime APIs for web and mobile apps. Ready-made, configurable Resources add common functionality to a Deployd backend, which can be further customized with JavaScript Events.
 
It includes Users Collection, user signup and authentication. It is also totally extensible, add custom properties and roles to your users, and write custom Event scripts to control access to users of your app.

Deployd is the simplest way to build realtime APIs for web and mobile apps. Ready-made, configurable Resources add common functionality to a Deployd backend, which can be further customized with JavaScript Events.

Deployd - A toolkit for building realtime APIs

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