…view (#6293)

### **User description**
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## Description

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[TT-12153](https://tyktech.atlassian.net/browse/TT-12153)

## Related Issue

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issue first. -->
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## Motivation and Context

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## How This Has Been Tested

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## Screenshots (if appropriate)

## Types of changes

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- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Refactoring or add test (improvements in base code or adds test
coverage to functionality)

## Checklist

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- [ ] I ensured that the documentation is up to date
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why it's required
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explained why


[TT-12153]:
https://tyktech.atlassian.net/browse/TT-12153?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ


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### **PR Type**
Enhancement


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### **Description**
- Integrated `complexityCheckerV2` and `granularAccessCheckerV2` into
`EngineV3`.
- Implemented complexity and granular access processing in the reverse
proxy.
- Added new checker classes with methods for depth limit and field
allowance validation.


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### **Changes walkthrough** 📝
<table><thead><tr><th></th><th align="left">Relevant
files</th></tr></thead><tbody><tr><td><strong>Enhancement
</strong></td><td><table>
<tr>
  <td>
    <details>
<summary><strong>engine_v3.go</strong><dd><code>Integrate new complexity
and granular access checkers in EngineV3</code></dd></summary>
<hr>

internal/graphengine/engine_v3.go
<li>Added <code>complexityCheckerV2</code> and
<code>granularAccessCheckerV2</code> initialization.<br> <li> Integrated
new checkers into the <code>EngineV3</code> structure.<br> <li> Removed
commented-out code for previous checker versions.<br>


</details>
    

  </td>
<td><a
href="https://github.com/TykTechnologies/tyk/pull/6293/files#diff-4ba23e43847b67a031cd5f4db82b27640f10ae9b291dc389bb8137bf1b4c7831">+14/-12</a>&nbsp;
</td>
</tr>                    

<tr>
  <td>
    <details>
<summary><strong>engine_v3_reverse_proxy.go</strong><dd><code>Implement
complexity and granular access processing in reverse
proxy</code></dd></summary>
<hr>

internal/graphengine/engine_v3_reverse_proxy.go
<li>Implemented <code>ProcessGraphQLComplexity</code> using
<code>complexityCheckerV2</code>.<br> <li> Implemented
<code>ProcessGraphQLGranularAccess</code> using
<br><code>granularAccessCheckerV2</code>.<br> <li> Removed error logging
for unsupported features.<br>


</details>
    

  </td>
<td><a
href="https://github.com/TykTechnologies/tyk/pull/6293/files#diff-911310643ffcc0a9349642a40b3237a59c044dc9ea2ab98248e5e4c3a641b703">+3/-4</a>&nbsp;
&nbsp; &nbsp; </td>
</tr>                    

<tr>
  <td>
    <details>
<summary><strong>graphql_go_tools_v2.go</strong><dd><code>Add complexity
and granular access checkers with validation
methods</code></dd></summary>
<hr>

internal/graphengine/graphql_go_tools_v2.go
<li>Added <code>complexityCheckerV2</code> with depth limit
checking.<br> <li> Added <code>granularAccessCheckerV2</code> with field
allowance checking.<br> <li> Implemented methods for complexity and
granular access validation.<br>


</details>
    

  </td>
<td><a
href="https://github.com/TykTechnologies/tyk/pull/6293/files#diff-2e41b60f046c2947fbedb8fb841b5c3c962798e3ba8211c7144f326436ffabe3">+193/-0</a>&nbsp;
</td>
</tr>                    
</table></td></tr></tr></tbody></table>

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