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Vishesh 'ironeagle' Bangotra 24ecde4222
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2026-01-22 17:20:17 +05:30

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<h1 id="adapters">Adapters</h1>
<div class="doc doc-object doc-module">
<h2 id="mail_intake.adapters" class="doc doc-heading">
<span class="doc doc-object-name doc-module-name">mail_intake.adapters</span>
</h2>
<div class="doc doc-contents first">
<p>Mail provider adapter implementations for Mail Intake.</p>
<p>This package contains <strong>adapter-layer implementations</strong> responsible for
interfacing with external mail providers and exposing a normalized,
provider-agnostic contract to the rest of the system.</p>
<p>Adapters in this package:
- Implement the <code>MailIntakeAdapter</code> interface
- Encapsulate all provider-specific APIs and semantics
- Perform read-only access to mail data
- Return provider-native payloads without interpretation</p>
<p>Provider-specific logic <strong>must not leak</strong> outside of adapter implementations.
All parsings, normalizations, and transformations must be handled by downstream
components.</p>
<p>Public adapters exported from this package are considered the supported
integration surface for mail providers.</p>
<div class="doc doc-children">
<div class="doc doc-object doc-class">
<h3 id="mail_intake.adapters.MailIntakeAdapter" class="doc doc-heading">
<span class="doc doc-object-name doc-class-name">MailIntakeAdapter</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 adapter interface for mail providers.</p>
<p>This interface defines the minimal contract required to:
- Discover messages matching a query
- Retrieve full message payloads
- Retrieve full thread payloads</p>
<p>Adapters are intentionally read-only and must not mutate provider state.</p>
<div class="doc doc-children">
<div class="doc doc-object doc-function">
<h4 id="mail_intake.adapters.MailIntakeAdapter.fetch_message" class="doc doc-heading">
<span class="doc doc-object-name doc-function-name">fetch_message</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_message</span><span class="p">(</span><span class="n">message_id</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]</span>
</code></pre></div>
<div class="doc doc-contents ">
<p>Fetch a full raw message by message identifier.</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>message_id</code></td>
<td>
<code>str</code>
</td>
<td>
<div class="doc-md-description">
<p>Provider-specific message identifier.</p>
</div>
</td>
<td>
<em>required</em>
</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><span title="typing.Dict">Dict</span>[str, <span title="typing.Any">Any</span>]</code>
</td>
<td>
<div class="doc-md-description">
<p>Provider-native message payload</p>
</div>
</td>
</tr>
<tr class="doc-section-item">
<td>
<code><span title="typing.Dict">Dict</span>[str, <span title="typing.Any">Any</span>]</code>
</td>
<td>
<div class="doc-md-description">
<p>(e.g., Gmail message JSON structure).</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="doc doc-object doc-function">
<h4 id="mail_intake.adapters.MailIntakeAdapter.fetch_thread" class="doc doc-heading">
<span class="doc doc-object-name doc-function-name">fetch_thread</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_thread</span><span class="p">(</span><span class="n">thread_id</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]</span>
</code></pre></div>
<div class="doc doc-contents ">
<p>Fetch a full raw thread by thread identifier.</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>thread_id</code></td>
<td>
<code>str</code>
</td>
<td>
<div class="doc-md-description">
<p>Provider-specific thread identifier.</p>
</div>
</td>
<td>
<em>required</em>
</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><span title="typing.Dict">Dict</span>[str, <span title="typing.Any">Any</span>]</code>
</td>
<td>
<div class="doc-md-description">
<p>Provider-native thread payload.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="doc doc-object doc-function">
<h4 id="mail_intake.adapters.MailIntakeAdapter.iter_message_refs" class="doc doc-heading">
<span class="doc doc-object-name doc-function-name">iter_message_refs</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">iter_message_refs</span><span class="p">(</span><span class="n">query</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Iterator</span><span class="p">[</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">str</span><span class="p">]]</span>
</code></pre></div>
<div class="doc doc-contents ">
<p>Iterate over lightweight message references matching a query.</p>
<p>Implementations must yield dictionaries containing at least:
- <code>message_id</code>: Provider-specific message identifier
- <code>thread_id</code>: Provider-specific thread identifier</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>query</code></td>
<td>
<code>str</code>
</td>
<td>
<div class="doc-md-description">
<p>Provider-specific query string used to filter messages.</p>
</div>
</td>
<td>
<em>required</em>
</td>
</tr>
</tbody>
</table>
<p><span class="doc-section-title">Yields:</span></p>
<table>
<thead>
<tr>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr class="doc-section-item">
<td>
<code><span title="typing.Dict">Dict</span>[str, str]</code>
</td>
<td>
<div class="doc-md-description">
<p>Dictionaries containing message and thread identifiers.</p>
</div>
</td>
</tr>
</tbody>
</table>
<details class="example-yield" open>
<summary>Example yield</summary>
<p>{
"message_id": "...",
"thread_id": "..."
}</p>
</details>
</div>
</div>
</div>
</div>
</div>
<div class="doc doc-object doc-class">
<h3 id="mail_intake.adapters.MailIntakeGmailAdapter" class="doc doc-heading">
<span class="doc doc-object-name doc-class-name">MailIntakeGmailAdapter</span>
</h3>
<div class="doc-signature highlight"><pre><span></span><code><span class="nf">MailIntakeGmailAdapter</span><span class="p">(</span><span class="n">auth_provider</span><span class="p">:</span> <span class="n">MailIntakeAuthProvider</span><span class="p">,</span> <span class="n">user_id</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s1">&#39;me&#39;</span><span class="p">)</span>
</code></pre></div>
<div class="doc doc-contents ">
<p class="doc doc-class-bases">
Bases: <code><a class="autorefs autorefs-internal" title="mail_intake.adapters.base.MailIntakeAdapter" href="base/#mail_intake.adapters.base.MailIntakeAdapter">MailIntakeAdapter</a></code></p>
<p>Gmail read-only adapter.</p>
<p>This adapter implements the <code>MailIntakeAdapter</code> interface using the
Gmail REST API. It translates the generic mail intake contract into
Gmail-specific API calls.</p>
<p>This class is the ONLY place where:
- googleapiclient is imported
- Gmail REST semantics are known
- .execute() is called</p>
<p>Design constraints:
- Must remain thin and imperative
- Must not perform parsing or interpretation
- Must not expose Gmail-specific types beyond this class</p>
<p>Initialize the Gmail adapter.</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>auth_provider</code></td>
<td>
<code><a class="autorefs autorefs-internal" title="mail_intake.auth.base.MailIntakeAuthProvider" href="../auth/base/#mail_intake.auth.base.MailIntakeAuthProvider">MailIntakeAuthProvider</a></code>
</td>
<td>
<div class="doc-md-description">
<p>Authentication provider capable of supplying
valid Gmail API credentials.</p>
</div>
</td>
<td>
<em>required</em>
</td>
</tr>
<tr class="doc-section-item">
<td><code>user_id</code></td>
<td>
<code>str</code>
</td>
<td>
<div class="doc-md-description">
<p>Gmail user identifier. Defaults to <code>"me"</code>.</p>
</div>
</td>
<td>
<code>&#39;me&#39;</code>
</td>
</tr>
</tbody>
</table>
<div class="doc doc-children">
<div class="doc doc-object doc-attribute">
<h4 id="mail_intake.adapters.MailIntakeGmailAdapter.service" class="doc doc-heading">
<span class="doc doc-object-name doc-attribute-name">service</span>
<span class="doc doc-labels">
<small class="doc doc-label doc-label-property"><code>property</code></small>
</span>
</h4>
<div class="doc-signature highlight"><pre><span></span><code><span class="n">service</span><span class="p">:</span> <span class="n">Any</span>
</code></pre></div>
<div class="doc doc-contents ">
<p>Lazily initialize and return the Gmail API service client.</p>
<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><span title="typing.Any">Any</span></code>
</td>
<td>
<div class="doc-md-description">
<p>Initialized Gmail API service instance.</p>
</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><a class="autorefs autorefs-internal" title="mail_intake.exceptions.MailIntakeAdapterError" href="../exceptions/#mail_intake.exceptions.MailIntakeAdapterError">MailIntakeAdapterError</a></code>
</td>
<td>
<div class="doc-md-description">
<p>If the Gmail service cannot be initialized.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="doc doc-object doc-function">
<h4 id="mail_intake.adapters.MailIntakeGmailAdapter.fetch_message" class="doc doc-heading">
<span class="doc doc-object-name doc-function-name">fetch_message</span>
</h4>
<div class="doc-signature highlight"><pre><span></span><code><span class="nf">fetch_message</span><span class="p">(</span><span class="n">message_id</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]</span>
</code></pre></div>
<div class="doc doc-contents ">
<p>Fetch a full Gmail message by message ID.</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>message_id</code></td>
<td>
<code>str</code>
</td>
<td>
<div class="doc-md-description">
<p>Gmail message identifier.</p>
</div>
</td>
<td>
<em>required</em>
</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><span title="typing.Dict">Dict</span>[str, <span title="typing.Any">Any</span>]</code>
</td>
<td>
<div class="doc-md-description">
<p>Provider-native Gmail message payload.</p>
</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><a class="autorefs autorefs-internal" title="mail_intake.exceptions.MailIntakeAdapterError" href="../exceptions/#mail_intake.exceptions.MailIntakeAdapterError">MailIntakeAdapterError</a></code>
</td>
<td>
<div class="doc-md-description">
<p>If the Gmail API returns an error.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="doc doc-object doc-function">
<h4 id="mail_intake.adapters.MailIntakeGmailAdapter.fetch_thread" class="doc doc-heading">
<span class="doc doc-object-name doc-function-name">fetch_thread</span>
</h4>
<div class="doc-signature highlight"><pre><span></span><code><span class="nf">fetch_thread</span><span class="p">(</span><span class="n">thread_id</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]</span>
</code></pre></div>
<div class="doc doc-contents ">
<p>Fetch a full Gmail thread by thread ID.</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>thread_id</code></td>
<td>
<code>str</code>
</td>
<td>
<div class="doc-md-description">
<p>Gmail thread identifier.</p>
</div>
</td>
<td>
<em>required</em>
</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><span title="typing.Dict">Dict</span>[str, <span title="typing.Any">Any</span>]</code>
</td>
<td>
<div class="doc-md-description">
<p>Provider-native Gmail thread payload.</p>
</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><a class="autorefs autorefs-internal" title="mail_intake.exceptions.MailIntakeAdapterError" href="../exceptions/#mail_intake.exceptions.MailIntakeAdapterError">MailIntakeAdapterError</a></code>
</td>
<td>
<div class="doc-md-description">
<p>If the Gmail API returns an error.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="doc doc-object doc-function">
<h4 id="mail_intake.adapters.MailIntakeGmailAdapter.iter_message_refs" class="doc doc-heading">
<span class="doc doc-object-name doc-function-name">iter_message_refs</span>
</h4>
<div class="doc-signature highlight"><pre><span></span><code><span class="nf">iter_message_refs</span><span class="p">(</span><span class="n">query</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">Iterator</span><span class="p">[</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">str</span><span class="p">]]</span>
</code></pre></div>
<div class="doc doc-contents ">
<p>Iterate over message references matching the query.</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>query</code></td>
<td>
<code>str</code>
</td>
<td>
<div class="doc-md-description">
<p>Gmail search query string.</p>
</div>
</td>
<td>
<em>required</em>
</td>
</tr>
</tbody>
</table>
<p><span class="doc-section-title">Yields:</span></p>
<table>
<thead>
<tr>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr class="doc-section-item">
<td>
<code><span title="typing.Dict">Dict</span>[str, str]</code>
</td>
<td>
<div class="doc-md-description">
<p>Dictionaries containing:</p>
</div>
</td>
</tr>
<tr class="doc-section-item">
<td>
<code><span title="typing.Dict">Dict</span>[str, str]</code>
</td>
<td>
<div class="doc-md-description">
<ul>
<li><code>message_id</code>: Gmail message ID</li>
</ul>
</div>
</td>
</tr>
<tr class="doc-section-item">
<td>
<code><span title="typing.Dict">Dict</span>[str, str]</code>
</td>
<td>
<div class="doc-md-description">
<ul>
<li><code>thread_id</code>: Gmail thread ID</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><a class="autorefs autorefs-internal" title="mail_intake.exceptions.MailIntakeAdapterError" href="../exceptions/#mail_intake.exceptions.MailIntakeAdapterError">MailIntakeAdapterError</a></code>
</td>
<td>
<div class="doc-md-description">
<p>If the Gmail API returns an error.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</article>
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