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<li><a href="protocol-examples-createattribute.html">Create a single Attribute</a></li>
<li><a href="protocol-examples-deleteattribute.html">Delete a single Attribute</a></li>
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<li><a href="protocol-examples-retrieveattribute.html">Retrieve a single Attribute</a></li>
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<li><a href="protocol-examples-retrievefeature.html">Retrieve a single Feature</a></li>
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<li><a href="protocol-examples-deletedefinition.html">Delete Feature Definition</a></li>
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<li><a href="protocol-examples-retrievedefinition.html">Retrieve Feature Definition</a></li>
<li><a href="protocol-examples-createproperties.html">Create Feature Properties</a></li>
<li><a href="protocol-examples-deleteproperties.html">Delete Feature Properties</a></li>
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<li><a href="protocol-examples-createproperty.html">Create a single Property</a></li>
<li><a href="protocol-examples-deleteproperty.html">Delete a single Property</a></li>
<li><a href="protocol-examples-modifyproperty.html">Modify a single Property</a></li>
<li><a href="protocol-examples-retrieveproperty.html">Retrieve a single Property</a></li>
<li><a href="protocol-examples-createdesiredproperties.html">Create desired Feature Properties</a></li>
<li><a href="protocol-examples-deletedesiredproperties.html">Delete desired Feature Properties</a></li>
<li><a href="protocol-examples-modifydesiredproperties.html">Modify desired Feature Properties</a></li>
<li><a href="protocol-examples-retrievedesiredproperties.html">Retrieve desired Feature Properties</a></li>
<li><a href="protocol-examples-createdesiredproperty.html">Create a single desired Property</a></li>
<li><a href="protocol-examples-deletedesiredproperty.html">Delete a single desired Property</a></li>
<li><a href="protocol-examples-modifydesiredproperty.html">Modify a single desired Property</a></li>
<li><a href="protocol-examples-retrievedesiredproperty.html">Retrieve a single desired Property</a></li>
<li><a href="protocol-examples-errorresponses.html">Error responses</a></li>
</ul>
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<a href="#"><span></span>→ Things merge examples</a>
<ul>
<li><a href="protocol-examples-mergething.html">Merge a Thing</a></li>
<li><a href="protocol-examples-mergepolicyid.html">Merge the Policy ID of a Thing</a></li>
<li><a href="protocol-examples-mergeattributes.html">Merge Attributes</a></li>
<li><a href="protocol-examples-mergeattribute.html">Merge a single Attribute</a></li>
<li><a href="protocol-examples-mergethingdefinition.html">Merge a Definition</a></li>
<li><a href="protocol-examples-mergefeatures.html">Merge Features</a></li>
<li><a href="protocol-examples-mergefeature.html">Merge a single Feature</a></li>
<li><a href="protocol-examples-mergefeaturedefinition.html">Merge Feature Definition</a></li>
<li><a href="protocol-examples-mergeproperties.html">Merge Feature Properties</a></li>
<li><a href="protocol-examples-mergeproperty.html">Merge a single Property</a></li>
<li><a href="protocol-examples-mergedesiredproperties.html">Merge desired Feature Properties</a></li>
<li><a href="protocol-examples-mergedesiredproperty.html">Merge a single desired Property</a></li>
<li><a href="protocol-examples-errorresponses.html">Error responses</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#"><span></span>→ Policies examples</a>
<ul>
<li><a href="protocol-examples-policies-createpolicy.html">Create a Policy</a></li>
<li><a href="protocol-examples-policies-deletepolicy.html">Delete a Policy</a></li>
<li><a href="protocol-examples-policies-modifypolicy.html">Modify a Policy</a></li>
<li><a href="protocol-examples-policies-retrievepolicy.html">Retrieve a Policy</a></li>
<li><a href="protocol-examples-policies-modifypolicyentries.html">Modify entries</a></li>
<li><a href="protocol-examples-policies-retrievepolicyentries.html">Retrieve entries</a></li>
<li><a href="protocol-examples-policies-createpolicyentry.html">Create a single entry</a></li>
<li><a href="protocol-examples-policies-deletepolicyentry.html">Delete a single entry</a></li>
<li><a href="protocol-examples-policies-modifypolicyentry.html">Modify a single entry</a></li>
<li><a href="protocol-examples-policies-retrievepolicyentry.html">Retrieve a single entry</a></li>
<li><a href="protocol-examples-policies-modifysubjects.html">Modify subjects</a></li>
<li><a href="protocol-examples-policies-retrievesubjects.html">Retrieve subjects</a></li>
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<h1 class="post-title-main">Architecture topics</h1>
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<p>The following pages and posts are tagged with <button type="button" style="cursor: default" class="btn btn-default navbar-btn">architecture</button></p>
<table><thead><tr><th>Title</th><th>Type</th><th>Excerpt</th></tr></thead>
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<tr><td><a href="architecture-overview.html">Architecture overview</a></td>
<td><span class="label label-default">Page</span></td>
<td> The architecture chapter describes the overall architecture of Eclipse Ditto and in detail which sub-components fulfill which responsibilities. Top level component view This overview shows the Ditto services (components), the externally provided and consumed API endpoints, the external dependencies (MongoDB and nginx) and the relations of the services to... </td>
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<tr><td><a href="architecture-services-concierge.html">Concierge service</a></td>
<td><span class="label label-default">Page</span></td>
<td> The “concierge” service is responsible for orchestrating the backing persistence services and for performing authorization of commands and command responses. It acts as a gatekeeper and entry point for other services providing APIs: gateway connectivity Those services do not need to be aware of... </td>
</tr>
<tr><td><a href="architecture-services-connectivity.html">Connectivity service</a></td>
<td><span class="label label-default">Page</span></td>
<td> The “connectivity” service enables Ditto to establish and manage client-side connections to external service endpoints. You can communicate with your connected things/twins over those connections via Ditto Protocol messages. The connectivity service supports various transport protocols, which are bound to the Ditto Protocol via specific Protocol Bindings.... </td>
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<tr><td><a href="architecture-services-gateway.html">Gateway service</a></td>
<td><span class="label label-default">Page</span></td>
<td> The “gateway” service is responsible for providing Ditto’s HTTP + WebSocket API. Model The gateway service has no model by its own, but uses the model of all the services it provides the HTTP + WebSocket API for. Signals The gateway service has no signals by... </td>
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<tr><td><a href="architecture-services-policies.html">Policies service</a></td>
<td><span class="label label-default">Page</span></td>
<td> The “policies” service takes care of persisting Policies. Model The model of the policies service is defined around the entity Policy: model Signals Other services can communicate with the policies service via: commands: containing commands and command responses which are processed... </td>
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<tr><td><a href="architecture-services-things-search.html">Things-Search service</a></td>
<td><span class="label label-default">Page</span></td>
<td> The “things-search” service takes care of: updating an optimized search index of Things based on the events emitted by the things and policies services when entites are changed there executing search queries against the search index in order to find out which Things match... </td>
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<tr><td><a href="architecture-services-things.html">Things service</a></td>
<td><span class="label label-default">Page</span></td>
<td> The “things” service takes care of persisting Things and Features. Model The model of the things service is defined around the entities Thing and Feature: model Signals Other services can communicate with the things service via: commands: containing commands... </td>
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