evaluateExpression method

Future<EvaluateExpressionOutput> evaluateExpression({ required String expression, required String objectId, required String pipelineId, })

Task runners call EvaluateExpression to evaluate a string in the context of the specified object. For example, a task runner can evaluate SQL queries stored in Amazon S3.

May throw InternalServiceError. May throw TaskNotFoundException. May throw InvalidRequestException. May throw PipelineNotFoundException. May throw PipelineDeletedException.

Parameter expression : The expression to evaluate.

Parameter objectId : The ID of the object.

Parameter pipelineId : The ID of the pipeline.

Implementation

Future<EvaluateExpressionOutput> evaluateExpression({
  required String expression,
  required String objectId,
  required String pipelineId,
}) async {
  ArgumentError.checkNotNull(expression, 'expression');
  _s.validateStringLength(
    'expression',
    expression,
    0,
    20971520,
    isRequired: true,
  );
  ArgumentError.checkNotNull(objectId, 'objectId');
  _s.validateStringLength(
    'objectId',
    objectId,
    1,
    1024,
    isRequired: true,
  );
  ArgumentError.checkNotNull(pipelineId, 'pipelineId');
  _s.validateStringLength(
    'pipelineId',
    pipelineId,
    1,
    1024,
    isRequired: true,
  );
  final headers = <String, String>{
    'Content-Type': 'application/x-amz-json-1.1',
    'X-Amz-Target': 'DataPipeline.EvaluateExpression'
  };
  final jsonResponse = await _protocol.send(
    method: 'POST',
    requestUri: '/',
    exceptionFnMap: _exceptionFns,
    // TODO queryParams
    headers: headers,
    payload: {
      'expression': expression,
      'objectId': objectId,
      'pipelineId': pipelineId,
    },
  );

  return EvaluateExpressionOutput.fromJson(jsonResponse.body);
}