wire up get_mi lambda in spec and tf

Author: RossFaulds171

infrastructure/terraform/components/api/locals.tf

@@ -15,6 +15,7 @@ locals {
     PATCH_LETTER_LAMBDA_ARN    = module.patch_letter.function_arn
     POST_LETTERS_LAMBDA_ARN    = module.post_letters.function_arn
     POST_MI_LAMBDA_ARN         = module.post_mi.function_arn
+    GET_MI_LAMBDA_ARN          = module.get_mi.function_arn
   })
 
   destination_arn = "arn:aws:logs:${var.region}:${var.shared_infra_account_id}:destination:nhs-main-obs-firehose-logs"

infrastructure/terraform/components/api/resources/spec.tmpl.json

@@ -306,6 +306,56 @@
           "uri": "arn:aws:apigateway:${AWS_REGION}:lambda:path/2015-03-31/functions/${POST_MI_LAMBDA_ARN}/invocations"
         }
       }
+    },
+    "/mi/{id}": {
+      "get": {
+        "description": "Returns 200 OK with management information.",
+        "responses": {
+          "200": {
+            "description": "OK"
+          },
+          "400": {
+            "description": "Bad request, invalid input data"
+          },
+          "404": {
+            "description": "Resource not found"
+          },
+          "500": {
+            "description": "Server error"
+          }
+        },
+        "security": [
+          {
+            "LambdaAuthorizer": []
+          }
+        ],
+        "summary": "Get MI",
+        "x-amazon-apigateway-integration": {
+          "contentHandling": "CONVERT_TO_TEXT",
+          "credentials": "${APIG_EXECUTION_ROLE_ARN}",
+          "httpMethod": "POST",
+          "passthroughBehavior": "WHEN_NO_TEMPLATES",
+          "responses": {
+            ".*": {
+              "statusCode": "200"
+            }
+          },
+          "timeoutInMillis": 29000,
+          "type": "AWS_PROXY",
+          "uri": "arn:aws:apigateway:${AWS_REGION}:lambda:path/2015-03-31/functions/${GET_MI_LAMBDA_ARN}/invocations"
+        }
+      },
+      "parameters": [
+        {
+          "description": "Unique identifier of this resource",
+          "in": "path",
+          "name": "id",
+          "required": true,
+          "schema": {
+            "type": "string"
+          }
+        }
+      ]
     }
   }
 }