What does a Diffbot specialist do?
A diffbot specialist builds automated pipelines that turn unstructured web pages into clean, structured data using the Diffbot platform. This role focuses on configuring extraction rules and managing API requests to capture specific information from websites at scale. You select the correct extraction endpoints for different page types and write custom logic when standard templates fall short. The work requires precise attention to HTML structure and data validation to guarantee accurate results.
- Select the appropriate Diffbot Extract endpoint, such as Article or Product, or use the Analyze API to classify unknown page types before routing them to the correct extractor. This initial step determines how the system interprets the content and ensures the right parsing logic applies to each URL target.
- Create and maintain Custom API rulesets by defining urlPattern matches and writing field-specific rules using CSS selectors. You apply filters like attribute, replace, or exclude to shape the output fields and correct any missing or misaligned data points in the extracted objects.
- Configure extraction options for target URLs, including specific fields to return and request behavior settings, then execute these requests through the API. You handle asynchronous workflows by submitting jobs via the Job API and retrieving the resulting structured objects once processing completes.
- Validate the returned structured data against source pages to identify errors or gaps in the extraction logic. You adjust selectors and refine rule filters to improve accuracy, ensuring the final dataset meets quality standards for downstream analysis or integration.
How to hire a Diffbot specialist on Upwork
Step 1: Post a job
Define your data extraction targets and required structured fields to attract qualified candidates. Use the Job Post Generator powered by Umaโข, Upwork's Mindful AI to draft a precise description in seconds. Describe your needs in a few sentences and Uma drafts a job post for the role. You can write a new post, update a saved draft, or reuse an existing post.
- Specify whether you need standard Extract endpoints like Article or Product, or if you require Custom API rulesets for unique page structures.
- List the specific CSS selectors, attribute filters, or replace rules needed to shape the output fields for your database.
- Clarify if the project involves asynchronous processing via the Job API for large-scale or complex extraction tasks.
Step 2: Evaluate candidates
Look for portfolios that demonstrate working Custom API rulesets and clean structured JSON outputs from complex websites. Uma can run instant video interviews and build shortlists with side-by-side comparisons to help you identify top performers quickly.
- Check for examples where the freelancer used the Analyze endpoint to classify unknown URL types before selecting the correct extractor.
- Verify their ability to define urlPattern matches and construct rules arrays that accurately capture nested data elements.
- Review past work showing how they handled edge cases using exclude filters to remove noise from the final structured objects.
Step 3: Interview your top choices
Discuss their approach to maintaining rulesets when target website layouts change over time. Interviews can be scheduled and conducted within Upwork Messages with an immediate transcript and summary after each one.
- Ask how they test extraction logic to ensure consistent results across different pages within the same domain.
- Question their experience with configuring request behavior settings to manage rate limits and timeout errors effectively.
- Explore their method for validating extracted objects against expected schemas before delivering the final data set.
Step 4: Agree on scope and begin work
Set clear milestones for ruleset creation, testing, and final data delivery to keep the project on track. Use Upwork Messages and the contract workroom for communication and project management, plus identity verification, payment protection, hourly tracking, and project funds for security.
- Define the exact list of target URLs and the specific fields each Custom API ruleset must return.
- Establish a testing protocol where the freelancer submits sample JSON outputs for your review before full-scale execution.
- Agree on a maintenance plan for updating selectors if the source websites undergo structural changes during the contract.
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