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api_gateway.tf
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api_gateway.tf
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resource "aws_api_gateway_rest_api" "main" {
name = "${var.lambda_name}-gateway"
description = "Goldstack lambda deployment ${var.lambda_name}"
}
resource "aws_api_gateway_resource" "proxy" {
rest_api_id = aws_api_gateway_rest_api.main.id
parent_id = aws_api_gateway_rest_api.main.root_resource_id
path_part = "{proxy+}"
}
resource "aws_api_gateway_method" "proxy" {
rest_api_id = aws_api_gateway_rest_api.main.id
resource_id = aws_api_gateway_resource.proxy.id
http_method = "ANY"
authorization = "NONE"
}
resource "aws_api_gateway_integration" "lambda" {
rest_api_id = aws_api_gateway_rest_api.main.id
resource_id = aws_api_gateway_method.proxy.resource_id
http_method = aws_api_gateway_method.proxy.http_method
# Lambdas can only be invoked via Post - but the gateway will also forward GET requests etc.
integration_http_method = "POST"
type = "AWS_PROXY"
uri = aws_lambda_function.main.invoke_arn
}
resource "aws_lambda_permission" "lambda_permission" {
statement_id = "AllowLambdaInvoke-${var.lambda_name}"
action = "lambda:InvokeFunction"
function_name = aws_lambda_function.main.function_name
principal = "apigateway.amazonaws.com"
# The /*/*/* part allows invocation from any stage, method and resource path
# within API Gateway REST API.
source_arn = "${aws_api_gateway_rest_api.main.execution_arn}/*/*/*"
}
resource "aws_api_gateway_method" "proxy_root" {
rest_api_id = aws_api_gateway_rest_api.main.id
resource_id = aws_api_gateway_rest_api.main.root_resource_id
http_method = "ANY"
authorization = "NONE"
}
resource "aws_api_gateway_integration" "lambda_root" {
rest_api_id = aws_api_gateway_rest_api.main.id
resource_id = aws_api_gateway_method.proxy_root.resource_id
http_method = aws_api_gateway_method.proxy_root.http_method
# Lambdas can only be invoked via Post - but the gateway will also forward GET requests etc.
integration_http_method = "POST"
type = "AWS_PROXY"
uri = aws_lambda_function.main.invoke_arn
}
resource "aws_api_gateway_deployment" "main" {
depends_on = [
aws_api_gateway_integration.lambda,
aws_api_gateway_integration.lambda_root,
]
rest_api_id = aws_api_gateway_rest_api.main.id
stage_name = "prod"
}