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!

Sur 109,217 commentaires, les clients ont évalué nos RESTful API Developers 4.87 sur 5 étoiles.
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    I'm seeking an experienced developer versed in API testing using existing tools such as JMeter and others. The project focus is on API testing automation and the key aim here is to ensure API functionality. Scope necessary for the role includes: - Configure an existing tool to test all of our API endpoints. - Checking and guaranteeing the functionality of the API. - Proficiency in at least one API testing tool The API in question is used as a files check layer before uploading to S3. The users can upload files, list, download, and more. The API allow synchronous requests and async requests. We need to automate the testing in order to answer the following questions. - Are all the endpoints of the API working? - How much time is taking every endpoint (average time maybe)? - What was...

    €539 (Avg Bid)
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    I'm urgently seeking knowledgeable developers who specialize in the LAMP stack, specifically: Linux, Apache, Python, and MySQL. Expertise in REST API is also a requirement. Key responsibilities: - Develop, test, and debug my project using LAMP stack and REST API. - Ensure the smooth operation of all system components. - Complete the project as soon as possible. While the preferred REST API framework has not been specified, experience with any renown REST API framework will be considered advantageous. To be successful in this role, you should have substantial experience with these technologies. Proven success in similar projects, alongside the ability to work quickly yet efficiently, will be highly valued. I need an expert who can hit the ground running due to the urgent timelin...

    €475 (Avg Bid)
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    As someone keen on monitoring the Description fields from the Case Object, I am looking for a proficient Salesforce API developer. The individual will set up an API that can efficiently download custom reports on a schedule with an expansive 100 column capacity. This person should be skilled at: - Initiating automatic report downloads at designated times - Including specific fields in the reports, in this case, Description from the Case Object - Wrangling large datasets, as reports will require dealing with upwards of 100 columns. The chosen freelancer should have experience with Salesforce API and data handling. Familiarity with Salesforce's Case Objects is advantageous.

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    I am looking for a freelancer who can integrate the PayPal Checkout service into SendPulse service. The ideal candidate should have experience with API integration and be able to redirect users to a separate PayPal page for payment processing. We require this procedure: 1. SendPulse issues a PayPal link for the customer. 2. PayPal Payment page opens and there are option to pay by Debit Card , Credit Card. 3. After payment successful the api send back to SendPulse. 4. SendPulse receives the unique payment status as : successful payment , rejected payment or pending payment. Skills and experience needed for this project: - API integration - PayPal Checkout service integration - Strong problem-solving skills The job will be through Anydesk and Zoom Call

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    We are seeking an experienced IT professional or engineer to create a comprehensive guide and develop software for a prototype of a Raspberry Pi-based mobile hotspot, integrating 4G/5G/LTE modem capabilities. The prototype aims to demonstrate a pay-by-time access model for internet connectivity. Please read this description all the way down to the end and follow the rules of posting there said. RESPONSIBILITIES 1. Hardware Assembly Guide: - Develop a detailed, step-by-step documentation on assembling the Raspberry Pi with a 4G/5G/LTE modem kit. This should include a list of required components, wiring instructions, and any necessary configuration steps. 2. Software Development: - Code and implement software on the Raspberry Pi that enables the device to function as a mobile hot...

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    Overview: Seeking experienced Core PHP developer to update existing APIs and develop new ones for grocery app, admin panel, and driver app. 60-70% of API work already done; focus on updates and new features. Responsibilities: * Review existing API architecture and functionality. * Gather updated requirements for apps from team. * Update existing APIs to reflect new requirements. * Develop new APIs for additional features. * Ensure seamless integration with existing system. * Implement security measures and authentication. * Test thoroughly for bugs and optimize performance. * Coordinate with team for front-end integration. * Provide documentation and support. Requirements: * Proven Core PHP API development experience. * Familiarity with maintaining and updating APIs. * Proficiency in ...

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    I'm seeking an experienced Python engineer to automate testing for a RESTful API. This role requires proficiency in both data retrieval and manipulation functions. The ideal candidate must also be skilled in the following areas of data validation: - Validating the response data structure - Validating specific values in the response - Validating status codes This challenging task requires a keen eye for detail and a clear understanding of Python and RESTful APIs.

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    React Website API Integration 3 jours left
    VERIFIÉ

    I currently have a website in React. The website is mostly to display users biometrics such as co2 levels, heart rate, hrv, spO2 etc. I need to integrate with the freestyle libre3 api and also the polar api. I need an interface for the end user to enter their details for both api. Their api details will be stored in postgres but the actual data from the api will be in influxdb which is a time-based db. Right now data is based on sessions. So with our app that measures co2 levels it creates a session which a start and end time. The data from freestyle libre3 has data 24/7 with glucose levels every minute or two. So the data from the api that we save has to match the time of currently stored sessions. In other words the data we save to that session will be only the data that were during t...

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    Requirements: Experienced in TypeScript and JavaScript. RESTful API SQL schemas JWT/OAuth

    €2106 (Avg Bid)
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    I am currently facing an issue regarding a data connection in Power BI Cloud. I have a Power BI dashboard connected to a REST API data source. The data connection works perfectly within the Power BI Desktop environment, which is notably configured in a Windows system. However, I am not getting the same results in the Power BI Cloud environment. The REST API is only accessible via a private network, and I am unsure if the API endpoint can be reached from the Cloud. I require assistance in configuring scheduled refreshes on the cloud platform. The ideal freelancer for this task should have: - Strong skills and experience with Power BI (both Desktop and Cloud environments) - Extensive knowledge of REST APIs and their integrations - Experience troubleshooting and solving connection issues in...

    €19 / hr (Avg Bid)
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    Estoy en la búsqueda de un programador con experiencia en Laravel y la API de Mercado Pago para un proyecto clave en mi negocio. Mi objetivo es ofrecer a mis clientes la posibilidad de suscribirse a diferentes planes con beneficios exclusivos mediante pagos automáticos mensuales. Necesito un profesional que pueda llevar a cabo lo siguiente: - **Integración de la API de Mercado Pago**: Específicamente para habilitar suscripciones automáticas en mi sitio web. - **Gestión de pagos**: Implementar un controlador que permita recopilar datos de la tarjeta de crédito del cliente y el código de seguridad para iniciar las suscripciones. Asimismo, es crucial el almacenamiento seguro del token de la tarjeta para futuras transacciones. **Habili...

    €74 (Avg Bid)
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