# ListFunctions
<a name="API_ListFunctions"></a>

List multiple functions.

## Request Syntax
<a name="API_ListFunctions_RequestSyntax"></a>

```
GET /v1/apis/apiId/functions?maxResults=maxResults&nextToken=nextToken HTTP/1.1
```

## URI Request Parameters
<a name="API_ListFunctions_RequestParameters"></a>

The request uses the following URI parameters.

 ** [apiId](#API_ListFunctions_RequestSyntax) **   <a name="appsync-ListFunctions-request-uri-apiId"></a>
The GraphQL API ID.  
Required: Yes

 ** [maxResults](#API_ListFunctions_RequestSyntax) **   <a name="appsync-ListFunctions-request-uri-maxResults"></a>
The maximum number of results that you want the request to return.  
Valid Range: Minimum value of 0. Maximum value of 25.

 ** [nextToken](#API_ListFunctions_RequestSyntax) **   <a name="appsync-ListFunctions-request-uri-nextToken"></a>
An identifier that was returned from the previous call to this operation, which you can use to return the next set of items in the list.  
Length Constraints: Minimum length of 1. Maximum length of 65536.  
Pattern: `[\S]+` 

## Request Body
<a name="API_ListFunctions_RequestBody"></a>

The request does not have a request body.

## Response Syntax
<a name="API_ListFunctions_ResponseSyntax"></a>

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

{
   "functions": [ 
      { 
         "code": "string",
         "dataSourceName": "string",
         "description": "string",
         "functionArn": "string",
         "functionId": "string",
         "functionVersion": "string",
         "maxBatchSize": number,
         "name": "string",
         "requestMappingTemplate": "string",
         "responseMappingTemplate": "string",
         "runtime": { 
            "name": "string",
            "runtimeVersion": "string"
         },
         "syncConfig": { 
            "conflictDetection": "string",
            "conflictHandler": "string",
            "lambdaConflictHandlerConfig": { 
               "lambdaConflictHandlerArn": "string"
            }
         }
      }
   ],
   "nextToken": "string"
}
```

## Response Elements
<a name="API_ListFunctions_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.

 ** [functions](#API_ListFunctions_ResponseSyntax) **   <a name="appsync-ListFunctions-response-functions"></a>
A list of `Function` objects.  
Type: Array of [FunctionConfiguration](API_FunctionConfiguration.md) objects

 ** [nextToken](#API_ListFunctions_ResponseSyntax) **   <a name="appsync-ListFunctions-response-nextToken"></a>
An identifier that was returned from the previous call to this operation, which you can use to return the next set of items in the list.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 65536.  
Pattern: `[\S]+` 

## Errors
<a name="API_ListFunctions_Errors"></a>

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

 ** BadRequestException **   
The request is not well formed. For example, a value is invalid or a required field is missing. Check the field values, and then try again.    
 ** detail **   
Provides further details for the reason behind the bad request. For reason type `CODE_ERROR`, the detail will contain a list of code errors.  
 ** reason **   
Provides context for the cause of the bad request. The only supported value is `CODE_ERROR`.
HTTP Status Code: 400

 ** InternalFailureException **   
An internal AWS AppSync error occurred. Try your request again.  
HTTP Status Code: 500

 ** NotFoundException **   
The resource specified in the request was not found. Check the resource, and then try again.  
HTTP Status Code: 404

 ** UnauthorizedException **   
You aren't authorized to perform this operation.  
HTTP Status Code: 401

## See Also
<a name="API_ListFunctions_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/appsync-2017-07-25/ListFunctions) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/appsync-2017-07-25/ListFunctions) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/appsync-2017-07-25/ListFunctions) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/appsync-2017-07-25/ListFunctions) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/appsync-2017-07-25/ListFunctions) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/appsync-2017-07-25/ListFunctions) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/appsync-2017-07-25/ListFunctions) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/appsync-2017-07-25/ListFunctions) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/appsync-2017-07-25/ListFunctions) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/appsync-2017-07-25/ListFunctions)