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docs/libs/omniread/site/core/scraper/index.html
Vishesh 'ironeagle' Bangotra 91baa41bee
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BaseScraper
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fetch
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scraper
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</a>
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<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#omniread.core.scraper.BaseScraper" class="md-nav__link">
<span class="md-ellipsis">
BaseScraper
</span>
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fetch
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<h1 id="scraper">Scraper</h1>
<div class="doc doc-object doc-module">
<h2 id="omniread.core.scraper" class="doc doc-heading">
<span class="doc doc-object-name doc-module-name">omniread.core.scraper</span>
</h2>
<div class="doc doc-contents first">
<p>Abstract scraping contracts for OmniRead.</p>
<p>This module defines the <strong>format-agnostic scraper interface</strong> responsible for
acquiring raw content from external sources.</p>
<p>Scrapers are responsible for:
- Locating and retrieving raw content bytes
- Attaching minimal contextual metadata
- Returning normalized <code>Content</code> objects</p>
<p>Scrapers are explicitly NOT responsible for:
- Parsing or interpreting content
- Inferring structure or semantics
- Performing content-type specific processing</p>
<p>All interpretation must be delegated to parsers.</p>
<div class="doc doc-children">
<div class="doc doc-object doc-class">
<h3 id="omniread.core.scraper.BaseScraper" class="doc doc-heading">
<span class="doc doc-object-name doc-class-name">BaseScraper</span>
</h3>
<div class="doc doc-contents ">
<p class="doc doc-class-bases">
Bases: <code><span title="abc.ABC">ABC</span></code></p>
<p>Base interface for all scrapers.</p>
<p>A scraper is responsible ONLY for fetching raw content
(bytes) from a source. It must not interpret or parse it.</p>
<p>A scraper is a <strong>stateless acquisition component</strong> that retrieves raw
content from a source and returns it as a <code>Content</code> object.</p>
<p>Scrapers define <em>how content is obtained</em>, not <em>what the content means</em>.</p>
<p>Implementations may vary in:
- Transport mechanism (HTTP, filesystem, cloud storage)
- Authentication strategy
- Retry and backoff behavior</p>
<p>Implementations must not:
- Parse content
- Modify content semantics
- Couple scraping logic to a specific parser</p>
<div class="doc doc-children">
<div class="doc doc-object doc-function">
<h4 id="omniread.core.scraper.BaseScraper.fetch" class="doc doc-heading">
<span class="doc doc-object-name doc-function-name">fetch</span>
<span class="doc doc-labels">
<small class="doc doc-label doc-label-abstractmethod"><code>abstractmethod</code></small>
</span>
</h4>
<div class="doc-signature highlight"><pre><span></span><code><span class="nf">fetch</span><span class="p">(</span><span class="n">source</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="o">*</span><span class="p">,</span> <span class="n">metadata</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">Mapping</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Content</span>
</code></pre></div>
<div class="doc doc-contents ">
<p>Fetch raw content from the given source.</p>
<p>Implementations must retrieve the content referenced by <code>source</code>
and return it as raw bytes wrapped in a <code>Content</code> object.</p>
<p><span class="doc-section-title">Parameters:</span></p>
<table>
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Description</th>
<th>Default</th>
</tr>
</thead>
<tbody>
<tr class="doc-section-item">
<td><code>source</code></td>
<td>
<code>str</code>
</td>
<td>
<div class="doc-md-description">
<p>Location identifier (URL, file path, S3 URI, etc.)</p>
</div>
</td>
<td>
<em>required</em>
</td>
</tr>
<tr class="doc-section-item">
<td><code>metadata</code></td>
<td>
<code><span title="typing.Optional">Optional</span>[<span title="typing.Mapping">Mapping</span>[str, <span title="typing.Any">Any</span>]]</code>
</td>
<td>
<div class="doc-md-description">
<p>Optional hints for the scraper (headers, auth, etc.)</p>
</div>
</td>
<td>
<code>None</code>
</td>
</tr>
</tbody>
</table>
<p><span class="doc-section-title">Returns:</span></p>
<table>
<thead>
<tr>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr class="doc-section-item">
<td>
<code><a class="autorefs autorefs-internal" title="omniread.core.content.Content" href="../content/#omniread.core.content.Content">Content</a></code>
</td>
<td>
<div class="doc-md-description">
<p>Content object containing raw bytes and metadata.</p>
</div>
</td>
</tr>
<tr class="doc-section-item">
<td>
<code><a class="autorefs autorefs-internal" title="omniread.core.content.Content" href="../content/#omniread.core.content.Content">Content</a></code>
</td>
<td>
<div class="doc-md-description">
<ul>
<li>Raw content bytes</li>
</ul>
</div>
</td>
</tr>
<tr class="doc-section-item">
<td>
<code><a class="autorefs autorefs-internal" title="omniread.core.content.Content" href="../content/#omniread.core.content.Content">Content</a></code>
</td>
<td>
<div class="doc-md-description">
<ul>
<li>Source identifier</li>
</ul>
</div>
</td>
</tr>
<tr class="doc-section-item">
<td>
<code><a class="autorefs autorefs-internal" title="omniread.core.content.Content" href="../content/#omniread.core.content.Content">Content</a></code>
</td>
<td>
<div class="doc-md-description">
<ul>
<li>Optional metadata</li>
</ul>
</div>
</td>
</tr>
</tbody>
</table>
<p><span class="doc-section-title">Raises:</span></p>
<table>
<thead>
<tr>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr class="doc-section-item">
<td>
<code>Exception</code>
</td>
<td>
<div class="doc-md-description">
<p>Retrieval-specific errors as defined by the implementation.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
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