amazon-web-services - Terraform:如果目标是 aws_sfn_state_machine，则 aws_api_gateway_integration 的 uri 参数是什么

Question

我要create a step function API using API gateway使用 Terraforms api_gateway_integration和 sfn_state_machine .

我现在必须填写 uri-parameter在 api_gateway_integration。

我的 step 函数已创建，我可以引用 step 函数的 id(类似于 arn:aws:states:*region*:*account*:stateMachine:*step-function-name*:stateMachine:*step-function-entry-point* )。

如果 AWS 阶跃函数是目标，谁能告诉我该方案或 uri 参数必须如何显示的示例？

resource "aws_api_gateway_integration" "endpoint_integration" {
  ...
  integration_http_method = "POST"
  type = "AWS"
  uri = <<<<< What to place here???
}

Answer 1

与 Terraform-integrate an AWS lambda with an API gateway 相比，您不能“直接”从 API 网关指向特定的 AWS 状态机(使用“uri”-参数)。相反，aws_api_gateway_integration-resource 通常指向 AWS 状态机，即特定的 AWS状态机将被AWS ARN引用作为请求的一部分。您可以使用API gateway request template从API网关映射到特定状态机，这样您在请求您的API时就可以省略die stateMachineArn。有关详细说明，请查看AWS documentation "Creating a Step Functions API Using API Gateway" .
工作示例

# var.aws_region = eu-central-1
# var.sfn_orchestrater_arn = arn:aws:states:eu-central-1:*account*:stateMachine:*step-function-entry-point*
resource "aws_api_gateway_integration" "endpoint_integration" {
  http_method             = "POST"
  integration_http_method = "POST"
  type                    = "AWS"
  passthrough_behavior    = "NEVER"
  uri                     = "arn:aws:apigateway:${var.aws_region}:states:action/StartExecution"

  request_templates = {
    "application/json" = <<EOF
{
    "input": "$util.escapeJavaScript($input.json('$'))",
    "stateMachineArn": "${var.sfn_orchestrater_arn}"
}
EOF
  }
}