# ListKnowledgeBases
<a name="API_amazon-q-connect_ListKnowledgeBases"></a>

Lists the knowledge bases.

## Request Syntax
<a name="API_amazon-q-connect_ListKnowledgeBases_RequestSyntax"></a>

```
GET /knowledgeBases?maxResults=maxResults&nextToken=nextToken HTTP/1.1
```

## URI Request Parameters
<a name="API_amazon-q-connect_ListKnowledgeBases_RequestParameters"></a>

The request uses the following URI parameters.

 ** [maxResults](#API_amazon-q-connect_ListKnowledgeBases_RequestSyntax) **   <a name="connect-amazon-q-connect_ListKnowledgeBases-request-uri-maxResults"></a>
The maximum number of results to return per page.  
Valid Range: Minimum value of 1. Maximum value of 100.

 ** [nextToken](#API_amazon-q-connect_ListKnowledgeBases_RequestSyntax) **   <a name="connect-amazon-q-connect_ListKnowledgeBases-request-uri-nextToken"></a>
The token for the next set of results. Use the value returned in the previous response in the next request to retrieve the next set of results.  
Length Constraints: Minimum length of 1. Maximum length of 4096.

## Request Body
<a name="API_amazon-q-connect_ListKnowledgeBases_RequestBody"></a>

The request does not have a request body.

## Response Syntax
<a name="API_amazon-q-connect_ListKnowledgeBases_ResponseSyntax"></a>

```
HTTP/1.1 200
Content-type: application/json

{
   "knowledgeBaseSummaries": [ 
      { 
         "description": "string",
         "knowledgeBaseArn": "string",
         "knowledgeBaseId": "string",
         "knowledgeBaseType": "string",
         "name": "string",
         "renderingConfiguration": { 
            "templateUri": "string"
         },
         "serverSideEncryptionConfiguration": { 
            "kmsKeyId": "string"
         },
         "sourceConfiguration": { ... },
         "status": "string",
         "tags": { 
            "string" : "string" 
         },
         "vectorIngestionConfiguration": { 
            "chunkingConfiguration": { 
               "chunkingStrategy": "string",
               "fixedSizeChunkingConfiguration": { 
                  "maxTokens": number,
                  "overlapPercentage": number
               },
               "hierarchicalChunkingConfiguration": { 
                  "levelConfigurations": [ 
                     { 
                        "maxTokens": number
                     }
                  ],
                  "overlapTokens": number
               },
               "semanticChunkingConfiguration": { 
                  "breakpointPercentileThreshold": number,
                  "bufferSize": number,
                  "maxTokens": number
               }
            },
            "parsingConfiguration": { 
               "bedrockFoundationModelConfiguration": { 
                  "modelArn": "string",
                  "parsingPrompt": { 
                     "parsingPromptText": "string"
                  }
               },
               "parsingStrategy": "string"
            }
         }
      }
   ],
   "nextToken": "string"
}
```

## Response Elements
<a name="API_amazon-q-connect_ListKnowledgeBases_ResponseElements"></a>

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

 ** [knowledgeBaseSummaries](#API_amazon-q-connect_ListKnowledgeBases_ResponseSyntax) **   <a name="connect-amazon-q-connect_ListKnowledgeBases-response-knowledgeBaseSummaries"></a>
Information about the knowledge bases.  
Type: Array of [KnowledgeBaseSummary](API_amazon-q-connect_KnowledgeBaseSummary.md) objects

 ** [nextToken](#API_amazon-q-connect_ListKnowledgeBases_ResponseSyntax) **   <a name="connect-amazon-q-connect_ListKnowledgeBases-response-nextToken"></a>
If there are additional results, this is the token for the next set of results.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 4096.

## Errors
<a name="API_amazon-q-connect_ListKnowledgeBases_Errors"></a>

For information about the errors that are common to all actions, see [Common Errors](CommonErrors.md).

 ** AccessDeniedException **   
You do not have sufficient access to perform this action.  
HTTP Status Code: 403

 ** ValidationException **   
The input fails to satisfy the constraints specified by a service.  
HTTP Status Code: 400

## See Also
<a name="API_amazon-q-connect_ListKnowledgeBases_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/qconnect-2020-10-19/ListKnowledgeBases) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/qconnect-2020-10-19/ListKnowledgeBases) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/qconnect-2020-10-19/ListKnowledgeBases) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/qconnect-2020-10-19/ListKnowledgeBases) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/qconnect-2020-10-19/ListKnowledgeBases) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/qconnect-2020-10-19/ListKnowledgeBases) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/qconnect-2020-10-19/ListKnowledgeBases) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/qconnect-2020-10-19/ListKnowledgeBases) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/qconnect-2020-10-19/ListKnowledgeBases) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/qconnect-2020-10-19/ListKnowledgeBases)