禁止使用Amazon API Gateway 403

Question

Recently, I used the Amazon API Gateway .I created an api ,but the API failed all the time. At the beginning,I didn't add request headers.The result that API responsed is as follows:

HTTP/1.1 403 Forbidden    
{"message":null, "type": "ACCESS_DENIED", "status":"", "other":"" }

Then ,I added a header which named host,the result changed.

HTTP/1.1 403 Forbidden
{"message":"Forbidden"}

I didn't use other AWS. I set the authorization is none and the API key required is false. enter image description here Could you help me? Thanks！

Answer 1

A cause of {"message":"Forbidden"} which I had which had me stumped was that I had not deployed my API.

For anyone having this issue, check if your gateway has been deployed. First you will need a Stage , with which you can click Deploy API from the Actions dropdown, selecting your stage.

Deploying will give you an invoke_url , (which ends in /{stage-name} .

For those using Terraform....

You can define an aws_api_gateway_stage which depends on aws_api_gateway_deployment . There is a known issue, at the time of writing , where the deployment doesn't re-trigger, which was the original cause of my forbidden error.

To fix this and get the deployment to run everytime a change has been made, add to aws_api_gateway_deployment :

resource "aws_api_gateway_deployment" "gateway-deployment" {
  ...

  stage_description = "Terraform hash ${md5(join(",", local.all_resources))}"

  lifecycle {
    create_before_destroy = true
  }
}

locals {
  all_resources = [
    "${aws_api_gateway_resource.simulator-gateway-resource.path}:${aws_api_gateway_method.simulator-gateway-method.http_method}:${aws_api_gateway_integration.simulator-gateway-integration.uri}",
  ]
}```