Php fedex web services api jobs
I'm in need of a skilled Flutter developer to create ...The app should support translation via voice input. - Image translation: The app should allow users to scan images using their device's camera for translation. Additional Requirements: - The app should have user accounts and profiles with data storage capabilities. Ideal Skills: - Proficient in Flutter - Prior experience with mobile app development - Experience with integrating third-party services - Familiarity with translation app development a plus. Most technical part is only few integrations, the rest is mostly interacting with the database. We’re looking for a developer with whom we can build a long term relationship in case of success for additional features projects after release in addition to other...
Description: We are currently seeking a dynamic and motivated freelance cold caller to join our team and assist in prequalifying low-income prospects for our revolutionary no-cost health benefits program. This is an excellent opportunity for individuals who are skilled in high-volume cold calling and have a passion for helping others access essential healthcare services. Responsibilities: -Make outbound cold calls to potential prospects to prequalify them for our no-cost health benefits program. -Conduct approximately 100-200 calls per day with a focus on efficiency and effectiveness. -Engage prospects in a professional and empathetic manner to gather necessary information. -Use qualifying questions to determine eligibility based on income level and current health coverage. -Clea...
...need the integration to be done through API and for all new orders received in our store within KuantoKusta to be automatically replicated in our WooCommerce. After that, when we mark the order as shipped in WooCommerce and add the tracking number, it should also be automatically updated in our KuantoKusta store. Key Responsibilities: - Implementing seamless integration between my WordPress/WooCommerce website and KuantoKusta - Ensuring that all order management functionalities are correctly synced between both platforms - Providing advice on any additional configurations that can be beneficial for the integration Ideal Candidate: - Strong experience in WooCommerce development and integration with external platforms - Proficiency in KuantoKusta's API and prior exp...
...which is similar to TikTok and made for artists. This project involves working with an existing app using Expo. Project Context: Our app enables artists to share their creativity through multimedia posts that can include: - Video - Image - Combination of sound and image The app leverages Cloudinary’s CDN for media hosting. The APIs are developed using API Platform (Symfony); however, this role does not require API development work. Mission: 1 - Post Enhancement (See attached file): - Implement Text overlay on videos and images like TikTok. - Add functionality to trim video durations like TikTok. - Add functionality to resize image. - Address existing bugs and optimize the upload process including improved loader management. 2 - Feed Improv...
The website I am seeking will serve a dual purpose: first, to inform about the different healing techniques my business offers, along with the benefits of each, and secondly, to sell associated healing products. The site will be geared towards individuals interested in alternative healing methods, wellness enthusiasts, and those with niche health conditions. Providing testimonials from satisfied clients for credibility and trust-building is also a key feature I'd like to incorporate. Skills and Experience: - Strong experience in e-commerce websites - Proficient in designing health and wellness-related websites - Ability to seamlessly integrate a schedule or appointment function would be a plus, though not mandatory at this stage. - Experience in creating platforms that include cust...
I'm looking for a professional who can develop a Chrome extension that will automatically respond to all WhatsApp messages. Key Requirements: - Operating System: The extension should be designed for Windows. - Message Response: I need the extension to send a simple "hello world" message in response to every message received on WhatsApp. -Logs: store log...Windows. - Message Response: I need the extension to send a simple "hello world" message in response to every message received on WhatsApp. -Logs: store logs - User: The final product will be used for personal use, so no team functionality is necessary. Ideal Freelancer: - Proficient in Chrome extension development. - Experience with the WPPconnect wa-js listener. - Strong understanding of WhatsApp's AP...
I'm in need of a PHP developer to assist with resolving a specific issue within my code, and also adjust some functionality related to user balances and payment processing. - The issue is isolated to a certain part of the codebase. I have a video that comprehensively explains the problem, saving you time on debugging and troubleshooting. - The main issue at hand involves the necessity of adjusting user balances and funds for payments. This requires a high level of precision and understanding of PHP functionality. Ideal candidates should have: - Proficient in PHP and associated technologies. - Strong problem-solving skills to address the issue quickly. - Experience in user balance management and payment systems is highly desirable.
We are a non profit seeking funding for a homeless youth campus, aiming to provide a comprehensive service that goes beyond just shelter. The intent is to accommodate...experience in: - Funding procurement and bid writing for social causes. - Knowledge in overlooked social issues, particularly homeless youth. - Experience or understanding of the education field, including vocational training, basic numeracy and literacy programs, college preparation courses and high school equivalency. - Demonstrating an awareness of the importance of counseling and support services. -Reintegration of youth into society in order to be productive adult members of society. This is not just a construction project, it's a project to ignite bright futures. Your contribution can alter the...
I'm in urgent need of a PHP expert to assist in creating (or finish the unfinish project attach ) a server-side application that will use Google Drive API, Google Calendar API, and/or Google Contacts API. The main priority is to implement user sign-in functionality for the application to ensure secure access and authentication for users. Key Requirements: - Seamless integration of Google Drive API, Google Calendar API, and/or Google Contacts API into a PHP worker application. - Implementation of user sign-in features to authenticate users and provide secure access to the application. - Priority on the ability to upload files using Google Drive API. The ideal freelancer must have: - Proficiency in PHP and experien...
...Development: - Flutter 3.19.0 - Android Studio (Jelly Fish) - THIS IS MANDATORY Key Requirements: - Generate the Android and iOS builds for an existing Flutter app - Push the iOS build to TestFlight - Proficient in managing and uploading builds on Apple Developer account Additional Information: - The Flutter app is integrated with push notifications. Please ensure that the configuration for these services is maintained in the builds. Ideal Skills: - Strong experience with Flutter - Proficient in iOS build generation and TestFlight distribution - Familiarity with Apple Developer account management and configurations - Understanding of push notification integration in Flutter Please provide your relevant experience and a clear strategy for managing the iOS build and TestFlight...
I'm in need of a Laravel developer to assist with integrating new features into my existing live website. Key Responsibilities: - Expertise in Laravel and PHP for backend development - Ability to integrate new features seamlessly into existing website - Experience with API integration and database management - Excellent communication skills to ensure smooth project flow Ideal Skills & Experience: - Proficient in Laravel and PHP - Previous experience in integrating features into live websites - Strong background in backend development - Capable of working with APIs and managing databases - Good understanding of website structure and user experience Please note that the specific features to be added to the website are not yet defined, but will require a dev...
...sap-alm-dp-api-datasource We have an example blog here. I will use my laptop as a test mashine, for this POC. So that is where we will be working. So we have to work on a shared screen, where you guide me what to do, to make it work. If you are not ok with this, then dont bid on the project. My expected endresult should be. 1) Install grafana on my laptop 2) connect cloud alm as my data source 3) We build 2 widgets in the dashboard The rest API's are located here You will show me, what we can get out of these 2 API's and then we build 1 widget for each. and this API https://api
As discussed in chat and outlined in the provided document, excluding referrals, support ticket and reports
...towards adult boat owners, and aims to help them with maintenance schedules, as well as connecting them with service providers. Key Features: - User Registration and Login: Users should be able to create accounts and sign in securely. - Push Notifications: Implement push notifications to notify users about important updates. - In-App Purchases: Enable in-app purchases for premium features or services. - Realtime In-App Messaging: Implement a messaging feature that allows users to communicate with service providers. - Provide a path to payment Target Audience: My app is tailored for boat owners, particularly adult boat owners. It's crucial that the developer understands this demographic and can craft an intuitive user experience for them. Main Purpose: The primary goal of ...
For my company, I require a proficient accountant with an expertise in bookkeeping and tax preparation. The candidate must be adept at maintaining and recording financial transactions, as well as preparing financial statements. Ideally, the freelancer should be experienced with: - Monthly, quarterly, and annual bookkeeping - Preparing tax returns and financial analysis reports Since we don't use any specific accounting software, the professional should either be well-versed with manually maintaining records or capable of suggesting and operating an effective accounting software for business.
Project Description: - I am looking for a freelancer who can help me develop a stunning website for my IT firm - The WebSite should feel primium like apples iphone page - Home page, About us, Services and Contact us pages require
I'm seeking a talented email marketing expert who can create 4-6 custom HTML templates for my promotional campaigns. Key Elements: - **Promotion Oriented:** The primary objective of these templates is to effectively promote our products and services. Previous experience in designing templates with a strong focus on sales and conversions would be highly beneficial. - **Branding Integration:** It's essential that the selected freelancer can seamlessly integrate our company's logo and brand color scheme into the design. - **Aesthetic Appeal:** The aesthetic appearance of the templates is crucial. We want them to not only effectively communicate our offerings but also be visually engaging. Ideal Candidate: - Proficient in designing email marketing templates with a...
I'm looking for a proficient de...immediately upon submission. - Secure Storage: Verified documents should be stored securely, ensuring confidentiality and data protection. - User-friendly Interface: The system should have an intuitive and simple-to-use design to allow effective handling of documents. Integration: - The system should be capable of API integration for seamless incorporation into existing structures. Ideally, the developer should have a strong background in system development and significant experience with API integration, real-time data handling, and secure storage solutions. Familiarity with the educational institution's documentation processes will be a plus. Your expertise in User Interface (UI) design will be highly appreciated to ensure the ...
As a boat rental service, I'm looking for a skilled developer to overhaul my existing website, bringing it up to date with a fresh redesign and migrating it to the WordPress CMS. The primary goal of this project is to enhance the site's lead generation ca...it clear how users can interact with the listings to make bookings or inquiries. Ideal Skills & Experience: - Proficiency in WordPress and experience with CMS migrations. - Strong UI/UX design skills and the ability to create a modern and engaging website layout. - Experience with integrating photo galleries, and a good eye for visual presentation. - Understanding of how to showcase products/services with pricing in an attractive and clear manner. - Good communication and project management skills to ensure a smoot...
I have a PostgreSQL database hosted on AWS. When trying to connect to my database server from my web application, I'm consistently receiving a TCP/IP error. Key Project Points: - The issue is specifically related to the TCP/IP connection between the web application and the AWS PostgreSQL database server. - The PostgreSQL database is hosted on AWS; it's not a local instance. - The web application is the only service experiencing this issue with the server. Ideal Freelancer: - Proficient in AWS services, particularly Amazon RDS for PostgreSQL. - Strong background in dealing with network errors, particularly TCP/IP. - Experience in troubleshooting web application and database connectivity issues.
I'm looking for an experienced develop...customization. We have a model on google colab which uses GradientAi and answers based on the prompt. I need to integrate this into the website. The website will answer questions on "How to fix_____?" by returning the tools required and the steps to perform. Additionally, I need the links for buying those tools included at the end so an API call needs to be added. Ideal candidates for this project should have: - Proficiency in GradientAI use, NLP, API, chatbot development, and web development. - Experience with integrating AI models into websites. - Strong skills in UI/UX design, particularly in designing chat interfaces. If you're confident in your ability to deliver this project within the specified time ...
...strong background in the IT/Technology industry. The ideal candidate should be able to effectively promote and sell our IT services and consultancy. Key Responsibilities: - The main focus will be on selling IT services. - No specific area of expertise is necessary, but experience in selling IT services Skills and Experience Required: - Proven track record in direct sales, preferably in the tech industry. - Excellent communication and negotiation skills. - Strong understanding of IT services and consultancy. - Ability to understand and convey technical concepts to non-technical clients. - Prior experience in selling Cloud Computing, Cybersecurity, or Data Analytics services will be highly valued, but not mandatory. - Substantial knowledge of technol...
I need an experienced Laravel developer to undertake crucial tasks within a large-scale project over a two-week timeline. The Laravel-specific requirements are as follows:- 1. Fix the Home Dashboard to display real data instead of dummy data in Laravel. 2. Implement form dat...them in Laravel. 30. Integrate SMTP for email sending in Laravel. 31. Enable editing of email templates and sending emails with edited images attached in Laravel. 32. Investigate and resolve any code errors and relationship issues between site visits and jobs, ensuring the proper attachment of site visits to jobs in Laravel. I expect you to integrate these features into a CRM and ensure seamless API integration. Proficiency in Laravel and experience in handling similar large-scale projects will be highly adv...
...WhatsApp Flow API: The primary task will be to develop a WhatsApp Flow API from the ground up. The API should be capable of processing and exchanging data effectively. - Implementing Data Processing and Exchange Features: A key requirement of this project is the ability to process and exchange data efficiently. Ideal candidates will have a track record of integrating such features into APIs. - Deploying on an On-Premises Server: The final product needs to be deployed on an on-premises server. This means the developer should have experience with, or be willing to learn, on-premises deployment processes. Ideal Skills and Experience: - Mid-level Python Developer: We're looking for someone with a mid-level of experience in Python development. If you've previo...
...chains or groups of pharmacies under a single ownership. 2. Location Criteria: • Urban and suburban areas with high foot traffic. • Pharmacies located near medical centers or hospitals. 3. Service Offerings: • Pharmacies that provide a range of medical supplies, over-the-counter medications, and health products. • Establishments that cater to a clientele seeking personalized health advice and services. Hospital Gift Shops 1. Type of Gift Shops: • Gift shops located within hospitals or medical centers. • Retail spaces that cater to visitors, patients, and hospital staff. 2. Location Criteria: • Major hospitals and medical centers in both urban and suburban areas. • Hospitals with high patient volume and visitor traffic. 3. Product Range: &b...
I was trying to make this website using chatgpt. i could reach to below point There are more services to add, but basic concept is the same. no dynamic feature. on the booking page, there should the map to locate the exact location. all the selected services the and contact details should be delivered to mail id. need to focus on ux/ui
Website Designer , Php , E Commerce having knowledge of MySQL
...job market. As part of our prominent company, you'll contribute to cutting-edge projects that shape the future, positioning yourself at the forefront of innovation. With comprehensive support programs, we ensure a seamless transition into our team, empowering you to hit the ground running and excel in your role. What You Bring: - Over 8 years of experience as a Python Developer, specializing in web API development, data analytics, and machine learning. - Proficiency in Python and related frameworks/libraries such as Django, Flask, NumPy, Pandas, and scikit-learn. - Strong communication and collaboration skills, with the ability to work independently and solve complex problems. - Bachelor's degree in Computer Science or equivalent certifications and work experien...
...and responsibilities: - Integration with MTN Momo & Vodafone Cash: The developer should be well-versed with the APIs and processes involved in integrating these mobile money services. - Automated Deposits & Withdrawals: The main goal of this integration is to ensure that users can deposit and withdraw their funds swiftly and seamlessly. - User-friendly Interface: The integration should be done in a way that is user-friendly and intuitive, encouraging users to engage with the payment system. Ideal skills and experience: - Proficiency in Mobile Money Integration: Knowledge and experience of integrating mobile money services, particularly MTN Momo & Vodafone Cash, is crucial. - Custom HTML/CSS: As my website is built using custom HTML/CSS, the developer should ha...
...seeking a seasoned web developer to build a bilingual website to promote my coaching and training services, and eventually sell related products. I am not sure what would be the best platform but I think Shopify or wordpress due to its future-proof eCommerce functionality. Key Requirements: - Shopify and wordpress Web development - Spanish and English language proficiency - Conceptual planning and designing the layout of the website Ideal Skills and Experience: - Previous Shopify and wordpress site development - Strong understanding of web design principles - Proficient in English and Spanish languages - Product marketing capability is a plus The primary goal is to create a visually appealing, easy-to-navigate website that showcases coaching and traini...
I am in the process of setting up a website that will serve as a hub for providing psychological services to the community. The site will have a total of 6-10 pages and will cater to different segments of the community, including individuals seeking therapy, psychologists, and mental health professionals, as well as the general public interested in mental health. Key requirements: - I will need engaging content that conveys our services clearly to the above-mentioned target audience. - The content should be professional and sensitive to the nature of the services offered. - Experience in writing for mental health or related topics will be a big plus. - Proficiency in WordPress since the website is built on this platform. If you have a background in psychology or men...
I am looking for a skilled backend developer with expertise in NodeJs for the development of APIs and their integration into a mobi...need to be seamlessly integrated into a mobile app, ensuring that they function optimally and provide a smooth user experience. Skills Required: - Proficiency in NodeJs: The ideal candidate should have extensive experience working with NodeJs to develop APIs. - Mobile App API Integration: Previous experience integrating APIs into mobile applications will be a strong advantage. - Android and iOS Development: Being able to develop APIs for both Android and iOS platforms is essential for this project. Your expertise in API development and mobile app integration, particularly for both Android and iOS, will be crucial for the successful completion...
I'm in urgent need of an experienced web developer to create a simple interactive website. The site should be designed in a modern and simple style, with a consistent colour scheme (i will tell you what colours). The main features of the website should include a login, sign-up, and user profile functionality and a unique feature which is the map using Google API. The website is about exploring castles in Edinburgh, England with the core feature being an interactive map, where users can click on castle names/icon and a pop up of a castle image will show up on the map. They can also save castles to favourites. Key Expectations: - Create a modern, interactive website - Use HTML, CSS, and JavaScript with any UI framework or JS library of your choice - Implement a simple...
Hi please help, very quick project making a VIN decoder. I need an expert to help me integrate a Zoho Creator form with rapidAPI.com. Here are the details: 1. I have a simple zoho creator form with following fields: Input fields: Rego State Output fields:...Input fields: Rego State Output fields: Vehicle_Make Vehicle_Model Year_field Vehicle_Type 2. Field "Rego" should have dummy data "830IC3" Field "State" should have dummy data "QLD" By entering dummy data into input fields, I need script to fetch vehicle details from this API: API has free subscription. 3. I have made the attached Deluge script, but something is broke, it's not working. Can you please make a deluge script to pull data out of this API? Than...
I am currently looking for an experienced individual to assist me in setting up the Facebook Conversions API on my WordPress website. Key Responsibilities: - Configuration and setting up of Facebook Conversions API on a WordPress platform Ideal Candidate: - Proficient in configuring and setting up the Facebook Conversions API - Well-versed in working with WordPress, understanding its architecture and integration requirements. Please note that I already have a Facebook Pixel installed and fully operational on the website.
The main objective of the project is to develop a website where we combine the features and services of and in one website. Please share your previous related jobs, like behance profile dribble, etc related to saas dashboards or projects We will offer both features of the mentioned sites on a single website so we need to combine them in an ingenious way, so I need a designer to create a figma file or similar so that the developer can use it as a guide. we must combine it in ingenious ways. . I need an expert in saas projects Requirements: Proven experience as a UX Designer with a strong portfolio showcasing previous work. Solid understanding of user-centered design principles and methodologies. Proficiency in design and prototyping tools such as Sketch,
I'm looking for someone to work with me on an automated crypto trading bot. It will use Tradingview alerts, (which uses Webhook URL) to ping a script on a server, which then uses an exchange API to execute crypto trades. I will integrate the script into MySQL using php to track the amount traded and set a e.g. a sell price for the crypto just purchased after the alert... I can do that... But I need help with the integration of alerts from Tradingview and the API code to the exchange.
...competent developer who can set up a script in my Airtable app to seamlessly integrate with the Aftership API. The main goal of this integration is to automate the process of generating DHL shipping labels. Key Responsibilities: - Utilizing JavaScript to create a script within the Airtable app for this purpose. - Configuring the Aftership webhook to relay the responses from the API to my Zapier app. Once the DHL shipping labels are generated, they should be stored within the Airtable app. This will allow for manual retrieval and distribution as needed. Skills and Experience Required: - Proficiency in JavaScript is a must. - Prior experience working with Airtable scripting and API integrations. - Familiarity with Aftership and Zapier would be beneficial. - Under...
Hi, i am looking for graphic designer to create advertisement to post on social media to hire owner operator drivers for car hauling company. Here is the text: Your Toy Transportation looking for owner operators in enclosed trailers for car hauling. We provide exceptional services in: --Dispatch 24/7 (Our dispatchers are experienced and has their own brokers and clientele with great rates!) --MC/DOT --24/7 ELD Support --Clean and transparent Accounting --Factoring --Good insurance rates If you are ready to join to the team and want to make from $7000 to $10000 grosses per week call us at 818-818-3833 347-845-0974 I attached few pictures as samples but i want our ad be better and very eye catching
I am looking for a skilled DevOps professional who can help me design and implement a robust CI/CD pipeline for my FastAPI application. The host platform should be Amazon Web Services (AWS) and Microsoft Azure. Key responsibilities include: - Setting up a CI/CD pipeline that is focused on automating the testing and deployment processes. - Ensuring the pipeline is well integrated with Github Actions. - Deploy the FastAPI application on both AWS and Azure. Additional tasks: - Implementing detailed logging and performance metrics for the application. The ideal candidate will possess: - Proven experience in DevOps and CI/CD pipeline design. - Extensive knowledge of AWS and Azure. - Familiarity with FastAPI and proficiency in hosting it on cloud platforms. - Strong experience i...
I have a video that's less than 20 second in duration that needs to be translated from Hindi /Tamil to English. I am looking for a skilled translator who can provide an accurate and clear English translation of the audio. Key requirements: - Translate the audio content from Hindi/Tamil to English - Ens...translation of the audio. Key requirements: - Translate the audio content from Hindi/Tamil to English - Ensure the translation is accurate and conveys the intended meaning - Prior experience in translating audio content is highly preferred - Ability to work under tight deadlines and deliver high-quality results Please only apply if you are confident in your ability to provide quality translation services for this project. The video is quite short, so I am looking for a qu...
...organization as the English site. SEO Configuration: Optimize the website for search engines with a focus on the Saudi Arabian market. This includes identifying and integrating the right keywords, tags, meta descriptions, and other relevant SEO elements to improve the site's visibility and ranking in search results. About the Agency: Our agency specializes in Search Engine Optimization (SEO) services, helping businesses improve their online presence and achieve higher search engine rankings. We offer comprehensive SEO strategies tailored to our clients' needs, focusing on delivering measurable results. Our team of experts is dedicated to staying updated with the latest SEO trends and best practices to ensure our clients stay ahead of the competition. Requirements: Pr...
As a small scale LangChain deployment, we are seeking a proficient professional to enhance our existing integration with OpenAI and LangChain. Key Requirements: - Enhance Language Understa...a process to important any type of documentation we have. Ideal Skills and Experience: - Profound experience with LangChain and OpenAI - Proven track record of enhancing language understanding and text generation within an AI system - Extensive experience in optimizing the performance of AI systems - Understanding of the technical requirements of LangChain deployment - Familiarity with cloud services, especially in relation to AI deployment We believe this project will be a valuable opportunity for someone with the right skills and experience to help us take our LangChain deployment to the n...
I am looking for a proficient C# developer who can build a .Net 8 Console application with in-depth CSV handling capabilities. You will need to be able to: - Import CSV files; - Validate CSV data, specifically focusing on data format and range checks; - Convert validated CSV data to a c# DTO format; - Post the converted data to an API. Responding to errors is a significant part of the project. The application should be able to handle any issues encountered during the import, validation, or conversion processes seamlessly. Proficiency in C# is a core necessity, with previous experience in CSV handling and data validation highly desired.
I need a skilled developer to create a graph logic application in either Core PHP, JavaScript, or JQuery. The application will focus on visualizing user engagement data, specifically the bounce rate. Key Requirements: - Develop a graph logic application that utilizes Core PHP, JavaScript, or JQuery. - The system should effectively visualize user engagement data. - The application should specifically focus on visualizing the bounce rate metric. Ideal Skills: - Proficiency in Core PHP, JavaScript, or JQuery. - Experience in developing graph logic applications. - Understanding of user engagement metrics.
I'm in need of a talented Senior Developer who has in-depth experience with both Boomi and Mulesoft. The primary goal of this project is to migrate our existing integrations to a new platform successfully. Key Requirements: - Proficiency in Boomi and Mulesoft: You should be well-versed in both platforms, able to ...well-versed in both platforms, able to navigate their functions and features effortlessly. - Migration Experience: Your role will involve transferring our existing integrations to a new platform. As such, experience with migration projects is essential. - System Integration: We're looking to integrate various types of systems, including CRM and ERP systems, custom applications, and third-party services. Your ability to connect these seamlessly is crucial to th...
I'm seeking a professional bilingual sales agent, fluent in both English and Spanish, to join my team. In this role, you'll primarily focus on cold calling within the services industry, helping to acquire new clients and close deals. Key Responsibilities: - Performing cold calls in English and Spanish to prospective clients within the services industry. - Conveying the benefits of our services and effectively persuading potential clients to engage with us. - Building and maintaining a strong pipeline of leads and opportunities. Ideal Skills: - Fluency in both English and Spanish is a must. - Proven experience in cold calling. - Strong communication and negotiation skills. - Ability to work independently and manage your own pipeline effectively. - Prior expe...
...facilitate easy interpretation of the key points. • Core areas extracted from Google Ads and Shopify will include sales data and advertising performance, turning these into actionable insights. • The output should link seamlessly with Google Sheets and update daily allowing for real-time performance tracking. Ideal freelancer should have prior experience in similar projects, and be adept with API integrations and chart generation. Strong data visualization skills coupled with knowledge in Google Ads and Shopify are also essential....
