RESTful API stands for Representational State Transfer Application Programming Interface, a term coined by Roy Fielding in 2000. A RESTful API allows an application to communicate with other applications. It is based on the structure of a website, where the data and information are stored in the form of resources. RESTful APIs make use of these resources to provide a certain level of accessibility and data exchange between different systems. This makes web development more efficient, as resources can be accessed easily and quickly.

A RESTful API Developer is responsible for designing and developing APIs to facilitate communication between different applications. The Developer will use their existing skills in web development to create APIs that are secure and reliable, that can provide clients with the ability to access resources for different types of usage. The Developer will also ensure that the APIs are well documented so that any updates or changes to their backend programming environment don't cause any disruptions with existing communication workflows.

Here's some projects that our expert RESTful API Developer made real:

  • Creating browser extensions using Microsoft Graph API
  • Building webpages for flight searches & results
  • Developing applications for React Native in PHP
  • Retrieving data through various APIs, presenting it in a table format & sending email notifications
  • Developing & integrating simple authentication functions into Laravel apps
  • Integrating WordPress REST APIs into mobile apps via PHP
  • Building middleware systems to convert HTTP GET requests into REST calls
  • Developing programs in C# .NET using the WordPressPCL Package Library
  • Developing cloud services programs using Cloud Flare's API
  • Creating tools to trigger Customer orders with CSV file uploads

At Freelancer.com, our RESTful API Developers are highly experienced professionals dedicated to delivering innovative solutions that meet our clients' specific needs! Our Developers have successfully completed various projects for a wide range of clients, enabling quick and secure data exchange between applications. If you’re looking for an experienced developer to create an efficient, reliable and secure API system, then post your project now and hire the most suitable API developer here on Freelancer.com!

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    Am un web app scris in Symfony PHP (front + back) si doresc sa integrez e-factura in el prin API-ul celor de la ANAF. Practic vreau sa am un buton in aplicatie pe care cand il apesi trimite toate facturile la ANAF (fara dubluri daca sunt deja incarcate). Aplicatia este deja functionala si live de vreo 4-5 ani, avand update-uri destul de frecvent.

    $886 (Avg Bid)
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    For our upcoming project, we are looking for an efficient Android Developer who can create a user-friendly application integrated with an E-commerce API. - Features: The main functionalities to be incorporated include user authentication, push notifications, in-app purchases, and data retrieval from the specified API. - API Integration: You will be working with an E-commerce API, extracting and utilizing data to enhance the overall user experience of the app. - Social Media API: Furthermore, the app should have the capacity to retrieve user data from various social media platforms and allow postings on the user's behalf. Having a strong background in Android development and proficiency in working with APIs will enable you to perform successfully for this role. Your prior exper...

    $498 (Avg Bid)
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    I am on the lookout for an expert Android developer with an extensive background in Kotlin. Here's what the project involves: - The aim of the project is not fully specified, as I have skipped providing specific features for this app. However, the developer should be comfortable and proficient in creating a range of features, potentially including (but not limited to) user registration and login, push notifications, and third-party integrations. Required skills and experience: - Extensive experience in Android development using Kotlin is a must. I am not seeking beginners or intermediates - only individuals with a proven expert level. - Experience in working with complex Android applications would be beneficial. When applying, please directly address the following: - Only your e...

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    I'm looking for an experienced API developer who can create an API to connect my front end with the backend. This API will be basic and primarily used to fetch user and product data. Key requirements for the job are: - Proficiency in Node JS, , and MongoDB - Ability to build APIs without the need for authentication or authorization mechanisms - Capability to create APIs with performance benchmark i.e., response time under a specific limit. Prior experience in similar projects is highly recommended. I need the work to be done efficiently and effectively. Looking forward to your proposals.

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    I'm looking for a professional API developer with strong skills in Node.js, , and MongoDB. This project revolves around providing a reliable connection between the back and front end of our platform. Primary Tasks: The API can be developed in 1-2 hour, i require basic functionality (Only Fetching) • Data Retrieval: You will develop API functionality for comprehensive data retrieval which includes: - "Get All Data" capability - Fetching data by ID - Fetching data by category • Data Manipulation: The API should allow data manipulation strictly for viewing purposes based on requests sent by the front end team. Ideal Candidate: The ideal candidate must have a strong background in API development, specifically with Node.js, , and MongoDB. Experience in both...

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    I'm looking for a developer with strong expertise in developing RESTful APIs. I need to create a RESTful API to receive a JSON post and write the data to a CSV file. Needs to run on a linux or windows server. Key Requirements * Strong experience in creating RESTful APIs * Experience in Swagger or similar * Proven ability to write clean, efficient code In your application, please include details of relevant experience and past projects related to RESTful API development. It would be beneficial if you could provide examples of APIs you have developed in the past. Your application should clearly demonstrate your competency in this area. Please note that this project could potentially lead to longer-term work, so demonstrating a solid track record and providing thorough, thoughtful r...

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    I need an experienced Shopify developer to assist with product listing and categorization on online store. In addition, the job entails developing a public app that features product integration, storefront customization, and functionalities for a storefront web component. Key tasks include: - Setting up product listings in the Shopify store. - Creating a public app with product integration and storefront customization capabilities. - Designing a storefront web component for the public app. - Exporting product and variants to an external API. Skill and Experience Requirements: - Extensive experience in Shopify development. - Knowledge of product integration into Shopify, especially exporting products and variants to external APIs. - Familiarity with creating public apps for Shopify. -...

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    I am looking for a talented Java developer capable of creating a bespoke module for KeyCloak v10.0.0. This project is aimed at connecting an external API to authenticate users in a unique way. Skills and Experience Required: 1. Proficiency in Java: As the solution delivery will require Java coding and jar creation. 2. Familiarity with KeyCloak and its Service Provider Interfaces (SPIs): This is crucial to ensure the production of the desired module. 3. API Connection/Integration: An important aspect of this project is the establishment of a connection with an external API. 4. Adoption of Standard Java Coding Conventions: Necessary for consistent and high-quality coding. 5. Docker knowlege to deploy a local keycloak environment Specifics To Be Delivered: - A module incorporating User Au...

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    Desde necesitamos el desarrollo de un módulo a medida para el departamento de Expediciones. SOLO PARA PERSONAS QUE HABLEN CASTELLANO (AQUEL PERFIL QUE CON CUMPLA ESTE REQUISITO SERÁ RECHAZADO). En dicho departamento están trabajando de una manera un poco artesanal a la hora de crear etiquetas y enviar los pedidos, realizando estos pasos: 1. Coger el id del pedido. 2. Buscarlo en Prestashop. 3. Elegid la agencia de envío (transportista). 4. Añadir el número de bultos y de peso. 5. Guardar. 6. Generar etiqueta. 7. Imprimir. 8. Pegar. 9. Mandar pedido. Todos estos pasos en cada pedido, lo que supone mucho tiempo a lo largo del día. Por lo tanto necesitaríamos un módulo PrestaShop 1.7.8.4. con el que poder automatizar este pr...

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    I'm seeking a talented developer to integrate a text-based search function for specific attributes of Pokemon Cards into our project. This feature is crucial for users who wish to find cards based on certain criteria efficiently. Here’s a closer look at what I need: **Core Requirements:** - **Specific API Integration:** Implementing an integration with the PokemonCard API that focuses on searching for specific card attributes. - **Attribute Focus:** The primary attributes of interest for this search function include card type (e.g., water, fire, grass) and rarity (e.g., common, rare, ultra rare). **Desired Features:** - **Text-Based Search Implementation:** A user-friendly text-input field where users can type specific attributes they’re looking for, including card type ...

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    POC to be done 1 zi left
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    its a small POC only. need to automate the process. we want to create simple android apk via GPT. figma file is attached herewith. Input to GPT: figma file Output: APk You need to generate code using Open AI for the figma file as input parameter. End result should be APK generated in a google drive. once you are through with the project, I need to test it.. My requirment is figma will be fed in gpt and we need output as a react native or flutter coding with the help of which android apk needs to be generated. So I would need 2 outputs 1.⁠ ⁠Code generated by gpt - not manual 2.⁠ ⁠Android apk generated via automation - not manually.

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    I need a romanian backend developer to integrate an existing invoice/billing software (project is 4-5 years old and got updated quite often, so code is pretty clean) with the ANAF e-factura system via their API. The software is live and functioning, written in Symfony PHP (both frontend and backend). Key responsibilities: - Modify the software to send invoices via e-factura API to ANAF. Ideal skills: - Experience with API integrations or e-factura API.

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    We are looking for a company which are expert in frontend and backend development to help us develop the following components: 1) Mobile App development (Android and iPhone packages): using Flutter language. 2) Backend development: using JavaScript or Python. The backend should be built as a microservice architecture to be able to handle thousands of requests per minute with ability to scale up and down and ability to have multiple databases read instance. For data storage we need your recommendation to use SQL or/and no-SQL data storage. 3) Web Console Development (Salon Console and Central Console): using HTML5/CSS/JavaScript (NodeJS) 4) Simple Website to present our service to the public: using HTML5/CSS/JavaScript (NodeJS) The design already made for all the components; PDF-exported...

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    Hi , Need react develops who can help me with resolving issues . I will pay monthly basis

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