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I need Uni Uni’s shipping API wired seamlessly into both my Vigo and Sella Cloud environments. The goal is to have every new order that appears in either platform pushed automatically to Uni Uni for fulfillment, then returned with the carrier label and tracking number in real time. Key workflow • Orders leave Vigo/Sella Cloud the moment they are created and carry over all relevant fields (items, quantities, customer address, priority flag). • Uni Uni responds with the shipment details, which must post straight back so warehouse staff see the label and tracking link instantly. • A simple rule set drives the hand-off: high-priority orders move first; all others queue behind them. This priority field already exists in the database, so the logic can key off it. I’ll provide API keys for all three systems plus endpoint documentation from Uni Uni. You handle the authentication handshake, build the event listener/webhook, code the priority-based routing, and test end-to-end so that I can drop a live order and watch it flow through without manual touches. Deliverable 1. Clean, commented source (language is your choice) packaged for deployment on our AWS Lambda instance. 2. Postman collection or cURL scripts that demonstrate each call. 3. A brief setup/readme and a 15-minute hand-over call so my in-house dev can maintain it. If you have completed similar shipping automations, show me a reference or quick demo link; it will speed up selection.
Project ID: 40675575
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181 freelancers are bidding on average $429 USD for this job

Hi, I have already integrated shipping APIs into real e-commerce systems. One project involved NPFulfilment and DHL shipping and tracking flows. I also handled API issues where tracking updates were not synchronized. That experience is directly relevant to your Vigo and Sella workflow. The important part here is preventing duplicate shipment creation. I would make the order event idempotent before sending it to Uni Uni. Each order should have one clear fulfillment state and shipment ID. That prevents retries from creating a second shipment by accident. I would also preserve your existing priority field in the event flow. High-priority orders can then move ahead without changing your data. The webhook should return shipment data to the correct order record. Tracking and label details should become visible immediately to staff. I can deploy the integration as an AWS Lambda service for this workflow. This keeps the integration separate from your existing applications. I would first review the three API contracts and event behavior. Then I can confirm the exact routing and error-handling approach.
$250 USD in 7 days
9.5
9.5

The key part here is not just connecting Uni Uni to Vigo and Sella Cloud, but making sure the order flow is reliable both ways so warehouse staff instantly see labels and tracking without manual checks. For this kind of integration, I’d build the Lambda handler around clear event logging, retry-safe API calls, and priority-aware queue logic so high-priority orders do not get stuck behind standard ones. I’ve handled API-based automations where orders, shipment creation, tracking updates, and webhook/event processing had to stay in sync across multiple systems. Packaging it cleanly for AWS Lambda, documenting the calls in Postman/cURL, and leaving readable commented code for an in-house dev is exactly the kind of handoff work I’m used to doing. If helpful, I can also include basic failure logging notes in the readme so troubleshooting is easier later. - Does Vigo and Sella Cloud already expose webhooks for new orders, or should the listener poll one of them? - Should the priority queue logic process strictly one-by-one, or can standard orders run concurrently when no priority order is waiting? - Are the Uni Uni label files returned as URLs, PDFs, or base64 content?
$500 USD in 7 days
9.4
9.4

Hi there, We understand you need seamless integration of Uni Uni's shipping API with your Vigo and Sella Cloud environments, automating order fulfillment and tracking updates in real-time. Our team has experience with similar API integrations and automations, such as integrating shipping providers with e-commerce platforms using PHP, JavaScript, and AWS Lambda. For instance, we've worked on projects involving custom API development and integration for logistics and shipping companies. We'll handle the authentication handshake, build the event listener/webhook, and code the priority-based routing, ensuring high-priority orders are processed first. Can you please share more details about the existing database structure and how the priority field is currently implemented? Feel free to message us to discuss the details! — Webbook Studio
$520 USD in 10 days
9.2
9.2

Hello, I’m Elias, a Miami-based senior software engineer with 20 years of experience. I specialize in API integration and backend development, making me well-suited for your project involving the integration of Uni Uni’s shipping API into your Vigo and Sella Cloud environments. I understand your main goal is to ensure a smooth connection between these systems to enhance operational efficiency. I’ve built similar systems that prioritize secure architecture and reliable performance. My approach would involve the following phases: 1) Analyze your existing workflows and technical requirements. 2) Design a robust architecture that accommodates both platforms. 3) Develop the API integration and core functionalities. 4) Conduct thorough testing to ensure everything works seamlessly. 5) Deploy and provide ongoing support for stability. Could you please clarify the following questions to help me better understand the project? 1) What specific business logic should the API integration accommodate? 2) Are there particular edge cases or permissions we need to consider? 3) How do you envision handling scalability as your user base grows? I’ve successfully completed similar integrations before. Most of my projects were under NDA, so I can't share links, but I’d be happy to discuss the architecture and decisions in detail. Additionally, I can ensure a maintainable codebase for straightforward future updates.
$500 USD in 3 days
8.8
8.8

I will deliver a seamless API integration between Uni-Uni and your Vigo and Sella Cloud environments, ensuring every new order is automatically pushed for fulfillment and returned with the carrier label and tracking number in real time. Handling complex API integrations and automation systems is a core part of my daily work. For your project, I will build the event listener, handle the authentication handshake, and code the priority-based routing so high-priority orders move first based on your existing database field. The complete solution will be packaged cleanly for your AWS Lambda instance with full documentation. My bid is $436.81 with a 1-day delivery. Let's chat so we can get started right away.
$436.81 USD in 1 day
8.1
8.1

Hi there, Your setup is clear: orders must leave Vigo and Sella instantly, flow into Uni Uni, and come back with label and tracking without anyone touching the process. That hidden bottleneck is usually not the API call itself, but keeping the handoff reliable when priority orders need to jump the queue. I’ve built similar order-routing and shipping integrations with PHP, JavaScript, webhooks, REST APIs, and AWS Lambda. I can wire the authentication, capture new order events from both Cloud environments, route high-priority jobs first, and return shipment details straight into your system so warehouse staff see the label and tracking link in real time. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. I’ll also package clean, commented source, a Postman collection or cURL examples, and a short README so your in-house developer can maintain it easily. Can you confirm how Vigo and Sella expose order events today—webhooks, polling, or database triggers—and what fields Uni Uni requires for fulfillment? Best regards, Asad
$250 USD in 10 days
8.3
8.3

I’ll build the complete Uni-Uni integration for both Vigo and Sella Cloud, covering the full order-to-fulfillment flow without manual steps. Each new order will be received through secure webhooks, normalized into Uni-Uni’s required format, and include items, quantities, customer address, and the existing priority flag. I’ll implement priority-aware routing so high-priority orders are processed first while standard orders remain queued safely behind them. The AWS Lambda solution will handle authentication, request validation, idempotency, retries, logging, and Uni-Uni API errors. Shipment responses will be mapped back to the originating Vigo/Sella order with the carrier label and tracking number/link immediately. I’ll structure the code with separate adapters for each platform so your in-house developer can maintain it easily, and protect credentials through AWS environment configuration. I’ll test the complete flow using real sandbox/API credentials, including duplicate events, failed requests, queue ordering, and successful label updates. You’ll receive commented deployment-ready source, a Postman collection or cURL examples for every call, a concise README, and the requested 15-minute handover call on Freelancer. I’ve delivered comparable REST shipping, fulfillment, webhook, and AWS automation integrations and can provide a relevant reference through the platform. Muhammad Saad
$650 USD in 4 days
8.0
8.0

Pushing orders from two separate platforms into one carrier reliably means the integration can't be a straight webhook-to-API passthrough — if Uni Uni is slow or briefly down, orders silently vanish. I'd build it as a Lambda behind API Gateway that accepts Vigo and Sella webhooks, normalises both payloads into one internal order shape, then drops them onto an SQS queue with a separate high-priority queue so flagged orders always get consumed first. A worker Lambda handles the Uni Uni auth handshake and label request with idempotency keys so retries never create duplicate shipments, then posts the tracking number and label URL back to the originating platform. Failures land in a DLQ with clear CloudWatch logging rather than disappearing. You'll get commented source, a Postman collection covering every call, and a written handover doc your in-house dev can work from. I can start immediately.
$250 USD in 1 day
7.9
7.9

You're building a Uni-Uni to Vigo/Sella Integration where the hardest part is making external integrations and the API layer stay reliable as scope grows. I've handled similar builds involving PHP, JavaScript, Software Architecture, MySQL, usually where the important part was translating the brief into a reliable working system. My approach would be to first define the integration contracts and backend boundaries, then deliver the first milestone around the riskiest data flow instead of only UI screens. For this project, I would focus especially on: - PHP implementation risks and acceptance criteria - JavaScript integration points and edge cases - Software Architecture milestone planning and handover clarity If helpful, I can outline the first milestone around the riskiest part of the build before we start. Best, Dr. Syafiq
$500 USD in 21 days
7.8
7.8

Hi, I can help you with "Uni-Uni to Vigo/Sella Integration" as per your given project description. We can discuss more in detail during a chat conversation when you are available. I've worked on many PHP projects in recent times. So I am confident on achieving your expected Goals. Please initiate a communication thread to discuss further and start with the project. ⭐ 5.0/5 from a recent client: "A more professional version: “Excellent work! The job was completed within the committed timeline. Great quality, professionalism, and timely delivery. Highly appreciated and recommended.”" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
$450 USD in 9 days
7.7
7.7

Hello!, I am a Florida-based senior software engineer and this is the kind of integration work I handle best. The main challenge here is making Uni Uni’s shipping API work smoothly inside both Vigo and Sella Cloud without creating issues in labels, tracking, status updates, or warehouse flow. I’d tackle it in practical phases: 1. Review the API docs, auth, and webhook behavior 2. Map Uni Uni fields into Vigo and Sella Cloud correctly 3. Build a clean PHP/JavaScript integration with retries, logging, and error handling 4. Test end-to-end so it’s stable before going live I’m very detail-focused, especially with edge cases like failed shipments, tracking sync, and keeping the code maintainable after launch. The goal is not just to connect the API, but to make it feel native and reliable in both environments. A few quick questions: 1. Do you already have Uni Uni API access, docs, and credentials for both systems? 2. Should the integration only create labels, or also sync tracking and shipment status automatically? 3. Are there any custom fields or existing workflows that must be preserved exactly? I’ve built similar shipping and workflow automation integrations for e-commerce and operations platforms, and I’d be glad to map out the safest implementation path with you. -James
$600 USD in 2 days
7.4
7.4

Hi, I've deployed web apps and services to AWS Lambda before and handled event-driven flows where one system's records trigger downstream API calls. That's the core of what you need here: a webhook listener catching new Vigo/Sella orders, mapping fields to Uni Uni's schema, then posting the returned label and tracking back. One thing worth deciding early: do you want the priority routing enforced by a real queue, so high-priority orders genuinely jump the line under load, or just a sort order on dispatch? At scale those behave very differently, and it affects how I handle Lambda concurrency and retries when Uni Uni rate-limits or fails. We build automation and integration work at MangoCoders, including AI-driven e-commerce tooling and workflow automation. Can you share Uni Uni's endpoint docs so I confirm their webhook and auth model? Adil
$275 USD in 7 days
7.5
7.5

You already have the priority field in the database, so the real job is wiring a dependable event flow: capture each new order from Vigo or Sella, push it to Uni Uni, then post the label and tracking back fast enough that operations can act on it immediately. I’d structure this as a lightweight Lambda integration with clean mapping, queue handling, and explicit error paths so one failed order does not interrupt the full stream. I’ve worked on shipping and order automations where API auth, payload transformation, webhook handling, and status write-backs had to be very tight. The deliverables you listed are practical, and I’d make sure the source is commented well enough that your internal developer can maintain it without having to reverse-engineer the logic. A small extra I can include is a sample test payload set for faster validation on your side. - Which runtime do you prefer on Lambda: Node.js or Python? - Do both Vigo and Sella need identical field mapping to Uni Uni, or are there platform-specific differences in order structure? - When Uni Uni fails to return a label instantly, should the order retry automatically or be flagged for review?
$500 USD in 7 days
7.7
7.7

Integrating Uni Uni's shipping API with both Vigo and Sella Cloud environments is crucial for automating order fulfillment. I will create a seamless workflow that pushes new orders to Uni Uni and retrieves carrier labels and tracking numbers in real time. I am ready to build the event listener/webhook, implement priority-based routing for high-priority orders, and leverage the provided API documentation for a smooth integration. I excel in building REST APIs and third-party API integrations using Node.js and Express, ensuring efficient communication between systems. With a 4.9-star rating across 200 client reviews and 220 projects completed, my expertise ensures quality work. Could you clarify the specific fields that need to be transferred for each order?
$600 USD in 14 days
7.4
7.4

Hello, {{{ I HAVE CREATED SIMILAR SHIPPING API, ORDER AUTOMATION & E-COMMERCE INTEGRATIONS BEFORE AND I CAN SHOW YOU }}} I have carefully reviewed your requirements and understand the complete order-to-fulfillment workflow between Vigo, Sella Cloud and Uni Uni. I have 11+ years of software development experience with strong expertise in REST APIs, webhooks, authentication, AWS Lambda and automated order/shipping integrations. I can implement the event-driven workflow so new orders are automatically captured, validated and sent to Uni Uni with all required order, item, address and priority data. I will handle the priority-based queue, Uni Uni shipment response, label/tracking synchronization back to Vigo/Sella, error handling and reliable retry logic to prevent missed or duplicate shipments. The solution will be packaged for AWS Lambda, with clean source code, Postman/cURL examples, setup documentation and end-to-end testing using real API responses. I WILL PROVIDE 2 YEARS OF FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. We will work with Agile methodology and I will assist from integration through deployment. I can start by reviewing the three API documentations and mapping the complete data flow. I eagerly await your positive response. Thanks, Christina
$450 USD in 4 days
7.6
7.6

Hello, I am very interested in the Uni-Uni to Vigo/Sella Integration project. I understand the requirements of seamlessly integrating Uni Uni's shipping API into both Vigo and Sella Cloud environments to automate order fulfillment and tracking. With expertise in MySQL, PHP, JavaScript, API Development, API Integration, and Software Architecture, I am confident in handling the authentication handshake, building the event listener/webhook, coding priority-based routing, and conducting thorough testing. - MY WORK STATS: ✨ https://www.freelancer.com/u/XanvraTECH I suggest a follow-up discussion to further delve into the project details and ensure a successful integration. Best regards, Warda Haider
$250 USD in 4 days
6.8
6.8

Hi there! I'm Markiyan, a full stack developer and CEO of a web agency, and I'd love to help you integrate Uni Uni's shipping API with your Vigo and Sella Cloud environments. I understand you need a seamless integration to automatically push new orders from Vigo and Sella to Uni Uni for fulfillment, and then return the carrier label and tracking number in real-time. I see that you've outlined a key workflow that involves orders being created, carrying relevant fields, and being prioritized based on a existing priority flag. My team and I have experience with similar API integrations and automations, including e-commerce development and CRM/ERP systems integration. For example, we've worked on a project where we integrated a shipping provider's API with an online store's backend to automate order fulfillment. I can deliver a clean, commented source code packaged for deployment on your AWS Lambda instance, along with Postman collection or cURL scripts to demonstrate each call. One question: Are there any specific error handling or logging requirements you'd like me to implement in the integration to ensure smooth debugging and maintenance? Feel free to message me to discuss the details! — Markiyan
$450 USD in 10 days
6.9
6.9

Hi, I'm Denis, a full-stack developer who has built several shipping and order automation systems using cloud services and APIs. Your requirement involves creating a reliable bridge between Vigo/Sella Cloud and Uni Uni’s API to automate order routing and tracking updates. The priority-based queue handling and real-time label generation are the key technical pieces here. I’ve worked on similar integrations where orders needed to be pushed immediately and status updates pulled back without delays. I’d start by reviewing the provided API docs and keys, then design a lightweight Lambda function to listen for new orders, enrich the payload with priority data, and handle the Uni Uni authentication handshake. The webhook will process responses and push tracking details back into Vigo and Sella. Testing will focus on edge cases like rate limits and malformed payloads to keep the flow stable. One risk is the reliability of Uni Uni’s API—if rate limits or downtime occur, the system should retry with exponential backoff without losing orders. A simple dead-letter queue can catch failures for manual review. I can start working right away. Let's connect and discuss the details. Thanks, Denis.
$250 USD in 3 days
6.5
6.5

Hello! We can build the integration to connect Uni Uni with your Vigo and Sella Cloud workflows. 1. Do you already have the Uni Uni API docs and access keys ready? 2. Should we start with Vigo, Sella, or both at the same time? — About us We are dZENcode – a full-cycle IT company for digital product development: from design and programming to integrations and post-release support. We build projects from scratch and also work on existing solutions that need further development, improvements, or technical support. You can find detailed information about our services and rates on our official website: https://dzencode.com. Please review it – after that, we can discuss the details and agree on the next step. ⚠️ After clarifying all details, we will define the scope, the suitable cooperation format – task-based, outsourcing, or outstaffing – and the final cost. Projects are guaranteed to reach release with us: • 10+ years providing IT services; • 90+ in-house specialists; • 250+ public reviews since 2015; • We support products under SLA after launch; • We work under NDA and a company contract!
$500 USD in 7 days
6.7
6.7

Hello!! The Uni-Uni Vigo Sella integration can be developed to connect the required systems reliably, automate data exchange, and ensure secure and accurate communication between the APIs. * Do you already have the Uni-Uni and Sella API documentation? * Which data or operations need to be synchronized? * Is there an existing application where this integration should be added? The solution will include API integration, authentication, request/response handling, data mapping, error management, logging, testing, and secure deployment while keeping the integration reliable and maintainable. Relevant API, payment, e-commerce, and third-party integration projects have been completed before, connecting external services smoothly with existing business systems. Let us review the API documentation and required workflow so we can begin quickly. Best regards Farhin B
$250 USD in 6 days
6.8
6.8

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