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I need a small, self-contained middleware layer that focuses exclusively on Datadog & Guardrails inside my existing Bedrock-powered gateway. The rest of the framework (metadata injection, token accounting, etc.) is already in place—I now want tight observability plus enforcement. Core scope • Capture every Bedrock request/response and push latency metrics to Datadog under the namespace aws.bedrock.llm.usage. • Attach rich, app-specific tags so the live dashboards can be filtered by application ID, environment, and any other identifier you feel is valuable for drill-downs. • Implement guardrails that read the running cost totals (already calculated upstream) and, the moment a user or agent breaches its daily or monthly allowance, short-circuit the call with an HTTP 429 response. Tech expectations The current stack is Node.js running behind an AWS API Gateway. You are free to introduce TypeScript, OpenTelemetry SDK, or the Datadog AWS Lambda extension if that speeds things up. The final code must be clean, commented, and slot into an existing Express-style middleware chain with a single import. Acceptance criteria 1. Latency for each Bedrock call appears in Datadog within 5 seconds, tagged with app-specific metadata. 2. A breached budget reliably triggers a 429 and writes a matching “blocked” event in Datadog. 3. Unit tests demonstrate both the happy path and the blocked path. 4. README shows environment variables, deployment steps, and a sample Datadog dashboard JSON. If this sounds straightforward to you and you have recent Datadog instrumentation experience, let’s get started.
Project ID: 40480705
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51 freelancers are bidding on average $482 USD for this job

Hello, I've built middleware layers that integrate monitoring and policy enforcement into Node.js backends before — this is straightforward work if you know where the integration points live. We handle Datadog instrumentation and custom guardrail logic regularly across our client projects. We've been building web and mobile apps for 14 years and shipped 1500+ projects, mostly SaaS platforms and backend systems that need solid observability. Node.js + AWS is our bread and butter. The stack you're describing — monitoring middleware, NoSQL data handling, HTTP routing — sits right in our wheelhouse. The bid amount is just a starting point. Once we talk through whether this is Express/Fastify middleware, what Guardrails rules you're enforcing, and how it hooks into your existing pipeline, I can give you a real number. Quick call to map out the scope would be the fastest way forward. Message me whenever you're ready. Regards, Nurul Hasan
$250 USD in 21 days
7.0
7.0

With over [#] years of experience in Backend Development, especially with Node.js, I am well-suited to take on your Datadog Guardrails Middleware project. I have a strong track record of building efficient and scalable applications, and your project requirements align perfectly with my skillset. My past experience in web development and web scraping have honed my abilities to work with complex projects and deliver high-quality code. I assure you that I can handle the responsibility of implementing the necessary steps to ensure a clean and commented final code that slots seamlessly into your existing Express-style middleware chain. I also understand the importance of observability and enforcement in your project, and can guarantee that I will go above-and-beyond to meet your acceptance criteria effectively. Additionally, my familiarity with AWS API Gateway along with my Node.js expertise, will enable me to stay within the core scope while optimizing for streamlined communication between services, thus providing you the desired outcome within established SLAs. If you're looking for a diligent and skilled professional who's committed to delivering excellence, I'm your guy! Given the straightforward nature of this task and my relevant recent instrumental experience, let's join forces now and get your project running optimally using Datadog's rich monitoring tools!
$300 USD in 3 days
4.8
4.8

Hello there, we are a team of senior Full Stack Web and Mobile App Developers and we have expertise in MEAN Stack. Please, send me a message to discuss the work. Thanks Ashish Kumar.
$500 USD in 7 days
4.5
4.5

With over a decade in the field of system administration and DevOps, I bring to the table a wealth of skills and experience that sound custom-tailored for your project. My extensive background covers intricate tasks involving AWS and API Gateways, perfect for your Node.js and AWS-based stack. As for instrumentation, I am well-versed in Datadog, having worked on several similar projects recently; I'm already familiar with its extensions such as the AWS Lambda extension you mentioned. Specifically, my proficiency in Backend Development, Node.js, and NoSQL Couch & Mongo grants me a solid foundation to tackle the intricacies of this task. Over the years, I have honed my abilities to implement middleware layers that seamlessly integrate with existing frameworks - just like the Bedrock-powered gateway you have in place. Furthermore, my dedication to operational excellence ensures that clean, commented code is not just a goal but a guarantee. Not to mention, my approach is always driven by long-term value for clients which naturally aligns with your need for a reliable solution. In conclusion, I truly believe partnering with me will add significant value to your project by delivering high-quality results on time while adhering closely to your acceptance criteria!
$399 USD in 3 days
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4.4

I’ve built similar middleware layers for AWS API Gateway setups that needed tight latency tracking with Datadog and cost-based request blocking. Capturing Bedrock request/response timings and tagging them with app-specific metadata fits neatly into an Express-style middleware pattern. I’ll instrument the latency metrics using OpenTelemetry or the Datadog Lambda extension to push data within seconds, grouping by app ID, environment, and other keys you find valuable. For enforcement, I’ll hook into the upstream cost totals to check daily and monthly limits in real time; exceeding those will immediately trigger 429 responses and log blocked events in Datadog for clear visibility. Do you have a preferred list of tags beyond app ID and environment? Also, will the running cost totals be passed as part of each request or accessible through a side channel? Knowing this will help optimize the check. I’ll include unit tests covering both allowed and blocked requests, plus a clear README with deployment instructions and a sample dashboard JSON to visualize the data. This can be done quickly and cleanly so you can slot the middleware into your existing chain with a simple import. Ready to start as soon as you share access and details.
$750 USD in 7 days
4.2
4.2

As an experienced web and mobile app developer with a strong foundation in Node.js, I am confident that I can deliver the robust solution you need for your Datadog Guardrails Middleware project. With over 9 years of experience in web development, I have continuously honed my skills in creating clean, commented and maintainable code - qualities that you have indicated as important for this assignment. Furthermore, I have hands-on understanding and recent experience working with DataDog—specifically implementing guardrails and capturing metrics to enable tight observability and enforcement—as described in your project description. In addition to that, being conversant with AWS would also come handy for me while deploying the software, and enabling easy integration with your current stack in an efficient manner, a skill that every freelancer doesn't possess. My comprehensive understanding of the significance of latency measurements in Datadog and my ability to attach relevant metadata tags will ensure you have all the possible filtering options needed for effective monitoring and drill-downs. Additionally, I'll provide ample unit tests covering both happy and blocked paths to ensure the reliability of your system along with a detailed README for seamless deployment and usage instructions. I believe my combination of expertise, experience, cost-effectiveness, and ready-to-hand support even after project completion makes me t
$500 USD in 7 days
4.4
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✍️ I'm ready to start your Datadog Guardrails Middleware immediately. ✍️ I've carefully gone through your requirement for Datadog Guardrails Middleware. Having delivered 50+ websites across WordPress, custom PHP, and modern JS frameworks, I understand exactly what's needed to make your website fast, responsive, and conversion-friendly — and I'm looking forward to a long-term working relationship. For a project like Datadog Guardrails Middleware, the core challenges are typically around page speed, responsive design across all devices, and making sure the backend and CMS are maintainable long-term. I address this by building with clean, semantic code, optimized assets, proper caching, and a structured admin setup — so you get a fast, SEO-friendly website that's easy to manage yourself. Relevant Projects: • Built 50+ responsive web using Modern Js, Laravel, Wordpress & custom HTML/CSS/JS across e-commerce, healthcare & services • Created SEO-optimized corporate websites & landing pages with clean code and fast load times My approach for this project: • Quick requirement deep-dive to finalize scope, edge cases & priorities • Structured milestone delivery with working demos for full visibility • Post-launch support & bug fixes to ensure smooth production performance About me: - 11+ years in Web & Mobile App Development with AI integration - Delivered 130+ apps (including a 1M+ downloads travel app) - Experience across Healthcare, Education, Pharma & E-commerce in 20+ countries - Built social, dating, chat, video calling & AI-powered apps from scratch - 5+ years Full-Stack + 6+ years leading high-performing dev teams I’m excited about this project and open to a long-term collaboration—let’s connect for a quick chat here. Thanks Neel B.
$750 USD in 27 days
1.2
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20 years of experience writing software, wrote the datadog stack in the previous 3 companies I worked for.
$750 USD in 7 days
1.2
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Hi there! Quick question - do you want these Datadog metrics and guardrails checks to persist across Lambda cold starts, or is in-memory state acceptable for your use case? Regardless, given my past experiences, this is definitely something that I feel confident delivering on. Kind Regards, Corné
$450 USD in 7 days
0.9
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I can develop a concise middleware layer tailored specifically for Datadog and Guardrails integration. My experience includes building lightweight, focused middleware solutions that streamline monitoring and security reporting without adding overhead. I prioritize clean, modular code that can be easily integrated or expanded as your system evolves. This ensures real-time observability and policy enforcement are seamlessly maintained. Do you have existing middleware architecture you’d like this to complement, or is this for a new implementation?
$500 USD in 7 days
0.0
0.0

Hey — saw your post about building a middleware layer for Datadog and Guardrails. The key challenge here is keeping it lightweight while ensuring seamless integration without slowing down requests. Quick question: Do you have specific metrics or events you want the middleware to capture, or should it be a full passthrough with default monitoring? I’ve developed middleware for observability tools before, making sure they’re efficient and non-intrusive. Send over any specs or examples you have, and I’ll take a look to map out a smooth approach.
$500 USD in 7 days
0.0
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As an experienced professional with nearly 20 years in the industry, I have amassed a broad and diverse set of skills that purposefully align with your project requirements. My proficiency in Node.js and Backend Development will facilitate a seamless integration of the small, self-contained middleware layer you are seeking for your Bedrock-powered gateway. Furthermore, my grasp on cutting-edge technologies such as TypeScript and OpenTelemetry SDK will undeniably expedite project delivery while ensuring clean and well-documented code. I understand the importance of observability for your framework hence; I am well-versed in Datadog and can guarantee timely capture and tagging of latency metrics for each Bedrock call. Additionally, my skill in AWS Lambda extension will contribute to reliable breach detection and trigger of an HTTP 429 response when necessary - instigating an immediate halt to any unauthorized use. Apart from my technical toolkit, I'm highly adaptable, having previously worked on a range of projects from full-stack SaaS applications to API development and integrations. This adaptability extends to my capacity to create comprehensive unit tests that adequately cover all possible scenarios. As requested, these will demonstrate the happy path as well as the blocked path to ensure foolproof security enforcement.
$250 USD in 7 days
0.0
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As an experienced full-stack developer, my passion lies in creating scalable solutions that not only meet but exceed my clients' business goals. I bring over 5 years of expertise to the table - including a keen understanding of Amazon Web Services, Cloud Computing, and extensive experience with Node.js, all of which are directly applicable to your project's tech stack and requirements. On the specific topic of utilizing Datadog's observability features and implementing guardrails as you've mentioned in your project description, I'm happy to highlight that I have recent and ample hands-on experience with Datadog instrumentation. Consequently, I can confidently assure you that I'll be able to build the self-contained middleware layer you're looking for, precisely capturing and pushing latency metrics tagged with app-specific metadata within seconds – optimizing your API setup. Beyond my technical capability, my approach to projects is marked by quick turnaround times and an intimate dedication to client satisfaction. Combining this with my adeptness in communicating across time zones (EST, PST, MST, GMT) – a trait accentuated through my 42+ country experience – means your project will be prioritized and delivered well before deadlines while being constantly communicated about.
$600 USD in 15 days
0.0
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This aligns perfectly with my skill set. I understand the need for a clean, professional, and seamless middleware layer integrating Datadog & Guardrails into your existing Bedrock-powered gateway. While I am new to freelancer, I have tons of experience and have done other projects off site. I possess the expertise in Node.js, TypeScript, and observability tools like Datadog. I am confident in delivering the required metrics, tags, and guardrails for your project. I would love to chat more about your project! Regards, Warrick Van Eeden
$350 USD in 7 days
0.0
0.0

The hard part here is not the Datadog push, it is making the guardrail enforce a cost ceiling reliably while requests are in flight: reading running totals, deciding allow/block, and emitting the metric without double-counting concurrent Bedrock calls or letting a race slip a request past the threshold. Tag cardinality matters too, app ID and environment are fine, but unbounded tags quietly blow up Datadog custom-metric cost, so the tagging needs a bounded, deliberate schema. I have shipped exactly this: an LLM gateway running 200M+ tokens/month across GPT-4, Claude, and Llama-70B with per-call token accounting, cost ceilings, and provenance, on AWS Lambda and Node. With 15 years of experience I operate as a true TeamOfOne, the single accountable owner across product, engineering, and QA, from your gateway internals to the live dashboards your team filters. The leverage in what I ship comes from combining deterministic automation (the middleware, the cost-threshold enforcement, the metric push, idempotent and auditable) with non-deterministic AI (the Bedrock calls it wraps). Your enforcement and observability must behave identically every call; only the model output is variable. I keep the determinism in the middleware where it belongs. Before we lock scope I would send a compact sample, the metric-emit and one guardrail path with the concurrency edge case called out, so you confirm direction before funding. Ready to get started. Best, Kaustubh
$650 USD in 10 days
0.0
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We’ve worked on a project with a very similar scope, giving me strong insight into delivering quality results efficiently. I understand the importance of a clean user-friendly UI for high-end customers. I am well-equipped to develop a Datadog Guardrails Middleware for your Bedrock-powered gateway, ensuring real-time observability and cost enforcement with a seamless integration into your existing stack. Let’s chat about your project and walk away with a free consultation. Regards, Nabeel Ismail
$350 USD in 7 days
0.0
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Hi, I can build the Express-style middleware layer for Bedrock observability and budget guardrails. My approach would be: - Review your existing Bedrock gateway middleware chain and cost-total interface - Add request/response latency instrumentation with Datadog tags for app ID, environment and request metadata - Implement budget checks that return HTTP 429 when daily/monthly limits are exceeded - Emit matching Datadog blocked events for traceability - Add unit tests for happy path and blocked path - Document environment variables, deployment steps and provide a sample dashboard JSON I have experience across AWS, backend services, monitoring-focused delivery and production system troubleshooting. I would keep this self-contained so it can be integrated with a single import and minimal changes to the existing gateway. Questions before starting: 1. Is the current Bedrock gateway running as Lambda, ECS/container, or a long-running Node.js service? 2. Are the upstream daily/monthly cost totals available synchronously in the request context? 3. Do you already have Datadog API/app keys and dashboard conventions, or should I provide a generic dashboard JSON?
$420 USD in 5 days
0.0
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I recently assisted a client with a similar setup, ensuring their application ran seamlessly on the new environment without disrupting existing workflows. I can help you achieve your goal by creating a robust Datadog Guardrails Middleware that captures and pushes latency metrics to Datadog, implements guardrails for cost enforcement, and ensures seamless integration with your existing Node.js stack behind AWS API Gateway. This is exactly the kind of project where a structured, detail-focused approach makes all the difference, and that’s what I bring. Your emphasis on tight observability and enforcement align perfectly with my expertise in developing clean, reliable, and scalable middleware solutions. With recent Datadog instrumentation experience, I am well-equipped to deliver the outcomes you seek, including timely metric reporting, budget enforcement, and comprehensive testing and documentation. Regards, Sebastian
$400 USD in 7 days
0.0
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