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thedersen · Apr 12, 2020 · b08a596 · b08a596
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diff --git a/.arc b/.arc
@@ -0,0 +1,17 @@
+@app
+test-cors
+
+@cors
+allowOrigins https://example.com
+allowMethods GET,POST,OPTIONS
+allowHeaders Authorization,X-Custom-Header
+exposeHeaders Content-Length,X-Custom-Header
+maxAge 7200
+allowCredentials true
+
+@http
+get /foo
+
+@macros
+architect/macro-http-api
+arc-macro-cors
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,2 @@
+node_modules/
+sam.yaml
diff --git a/.npmignore b/.npmignore
@@ -0,0 +1,4 @@
+src/http
+.arc
+sam.json
+sam.yaml
diff --git a/.npmrc b/.npmrc
@@ -0,0 +1 @@
+package-lock=false
diff --git a/README.md b/README.md
@@ -0,0 +1,51 @@
+# arc-macro-cors
+
+Enable CORS for [Architect](https://arc.codes) HTTP APIs.
+
+## Ok..How?!
+
+Install:
+
+`npm i arc-macro-cors`
+
+And add to your .arc-file for default CORS settings:
+
+```arc
+@app
+myapp
+
+@cors
+@http
+get /
+get /foo
+post /foo
+
+@macros
+architect/macro-http-api #Required until HTTP APIs are default in arc
+arc-macro-cors
+```
+Or configure specific CORS settings:
+
+```arc
+@app
+myapp
+
+@cors
+allowOrigins https://example.com
+allowMethods GET,POST,OPTIONS
+allowHeaders Authorization,X-Custom-Header
+exposeHeaders Content-Length,X-Custom-Header
+maxAge 7200
+allowCredentials true
+
+@http
+get /
+get /foo
+post /foo
+
+@macros
+architect/macro-http-api #Required until HTTP APIs are default in arc
+arc-macro-cors
+```
+
+See [AWS::Serverless::HttpApi/HttpApiCorsConfiguration](https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/sam-property-httpapi-httpapicorsconfiguration.html) for more information.
diff --git a/package.json b/package.json
@@ -0,0 +1,29 @@
+{
+  "name": "arc-macro-cors",
+  "version": "1.0.0",
+  "description": "Enable CORS for Architect HTTP APIs",
+  "main": "src/macros/arc-macro-cors.js",
+  "dependencies": {
+    "@architect/utils": "^1.5.2"
+  },
+  "scripts": {
+    "lint": "xo --fix"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/thedersen/arc-macro-cors.git"
+  },
+  "xo": {
+    "prettier": true,
+    "space": 2
+  },
+  "prettier": {
+    "trailingComma": "es5"
+  },
+  "author": "Thomas Pedersen <[email protected]>",
+  "license": "MIT",
+  "devDependencies": {
+    "@architect/macro-http-api": "^1.0.0",
+    "xo": "^0.28.1"
+  }
+}
diff --git a/sam.json b/sam.json
@@ -0,0 +1,246 @@
+{
+  "AWSTemplateFormatVersion": "2010-09-09",
+  "Transform": "AWS::Serverless-2016-10-31",
+  "Description": "Exported by architect/[email protected] on 2020-04-12T19:56:04.132Z",
+  "Resources": {
+    "GetFoo": {
+      "Type": "AWS::Serverless::Function",
+      "Properties": {
+        "Handler": "index.handler",
+        "CodeUri": "./src/http/get-foo",
+        "Runtime": "nodejs12.x",
+        "MemorySize": 1152,
+        "Timeout": 5,
+        "Environment": {
+          "Variables": {
+            "ARC_ROLE": {
+              "Ref": "Role"
+            },
+            "ARC_CLOUDFORMATION": {
+              "Ref": "AWS::StackName"
+            },
+            "ARC_APP_NAME": "test-cors",
+            "ARC_HTTP": "aws_proxy",
+            "NODE_ENV": "staging",
+            "SESSION_TABLE_NAME": "jwe"
+          }
+        },
+        "Role": {
+          "Fn::Sub": [
+            "arn:aws:iam::${AWS::AccountId}:role/${roleName}",
+            {
+              "roleName": {
+                "Ref": "Role"
+              }
+            }
+          ]
+        },
+        "Events": {
+          "GetFooEvent": {
+            "Type": "HttpApi",
+            "Properties": {
+              "Path": "/foo",
+              "Method": "GET",
+              "ApiId": {
+                "Ref": "TestCorsApi"
+              }
+            }
+          }
+        }
+      }
+    },
+    "GetIndex": {
+      "Type": "AWS::Serverless::Function",
+      "Properties": {
+        "Handler": "index.handler",
+        "CodeUri": "/Users/thomas/n/lib/node_modules/@architect/architect/node_modules/@architect/http-proxy/dist",
+        "Runtime": "nodejs12.x",
+        "MemorySize": 1152,
+        "Timeout": 5,
+        "Environment": {
+          "Variables": {
+            "ARC_ROLE": {
+              "Ref": "Role"
+            },
+            "ARC_CLOUDFORMATION": {
+              "Ref": "AWS::StackName"
+            },
+            "ARC_APP_NAME": "test-cors",
+            "ARC_HTTP": "aws_proxy",
+            "NODE_ENV": "staging",
+            "SESSION_TABLE_NAME": "jwe"
+          }
+        },
+        "Role": {
+          "Fn::Sub": [
+            "arn:aws:iam::${AWS::AccountId}:role/${roleName}",
+            {
+              "roleName": {
+                "Ref": "Role"
+              }
+            }
+          ]
+        },
+        "Events": {
+          "GetIndexEvent": {
+            "Type": "HttpApi",
+            "Properties": {
+              "Path": "/",
+              "Method": "GET",
+              "ApiId": {
+                "Ref": "TestCorsApi"
+              }
+            }
+          }
+        }
+      }
+    },
+    "StaticBucket": {
+      "Type": "AWS::S3::Bucket",
+      "Properties": {
+        "AccessControl": "PublicRead",
+        "WebsiteConfiguration": {
+          "IndexDocument": "index.html",
+          "ErrorDocument": "404.html"
+        }
+      }
+    },
+    "Role": {
+      "Type": "AWS::IAM::Role",
+      "Properties": {
+        "AssumeRolePolicyDocument": {
+          "Version": "2012-10-17",
+          "Statement": [
+            {
+              "Effect": "Allow",
+              "Principal": {
+                "Service": "lambda.amazonaws.com"
+              },
+              "Action": "sts:AssumeRole"
+            }
+          ]
+        },
+        "Policies": [
+          {
+            "PolicyName": "ArcGlobalPolicy",
+            "PolicyDocument": {
+              "Statement": [
+                {
+                  "Effect": "Allow",
+                  "Action": [
+                    "logs:CreateLogGroup",
+                    "logs:CreateLogStream",
+                    "logs:PutLogEvents",
+                    "logs:DescribeLogStreams"
+                  ],
+                  "Resource": "arn:aws:logs:*:*:*"
+                }
+              ]
+            }
+          }
+        ]
+      }
+    },
+    "GetStatic": {
+      "Type": "AWS::Serverless::Function",
+      "Properties": {
+        "Handler": "index.handler",
+        "CodeUri": "/Users/thomas/dev/oss/arc/arc-macro-cors/node_modules/@architect/http-proxy/dist",
+        "Runtime": "nodejs12.x",
+        "MemorySize": 1152,
+        "Timeout": 5,
+        "Environment": {
+          "Variables": {
+            "ARC_ROLE": {
+              "Ref": "Role"
+            },
+            "ARC_CLOUDFORMATION": {
+              "Ref": "AWS::StackName"
+            },
+            "ARC_APP_NAME": "test-cors",
+            "ARC_HTTP": "aws_proxy",
+            "NODE_ENV": "staging",
+            "SESSION_TABLE_NAME": "jwe",
+            "ARC_STATIC_SPA": "false"
+          }
+        },
+        "Role": {
+          "Fn::Sub": [
+            "arn:aws:iam::${AWS::AccountId}:role/${roleName}",
+            {
+              "roleName": {
+                "Ref": "Role"
+              }
+            }
+          ]
+        },
+        "Events": {
+          "GetStaticEvent": {
+            "Type": "HttpApi",
+            "Properties": {
+              "Path": "/_static/{proxy+}",
+              "Method": "GET",
+              "ApiId": {
+                "Ref": "TestCorsApi"
+              }
+            }
+          }
+        }
+      }
+    },
+    "TestCorsApi": {
+      "Type": "AWS::Serverless::HttpApi",
+      "Properties": {
+        "FailOnWarnings": true,
+        "CorsConfiguration": {
+          "AllowOrigins": [
+            "https://example.com"
+          ],
+          "AllowHeaders": [
+            "Authorization",
+            "X-Custom-Header"
+          ],
+          "ExposeHeaders": [
+            "Content-Length",
+            "X-Custom-Header"
+          ],
+          "AllowMethods": [
+            "GET",
+            "POST",
+            "OPTIONS"
+          ],
+          "MaxAge": 7200,
+          "AllowCredentials": true
+        }
+      }
+    }
+  },
+  "Outputs": {
+    "BucketURL": {
+      "Description": "Bucket URL",
+      "Value": {
+        "Fn::Sub": [
+          "http://${bukkit}.s3-website-${AWS::Region}.amazonaws.com",
+          {
+            "bukkit": {
+              "Ref": "StaticBucket"
+            }
+          }
+        ]
+      }
+    },
+    "HTTP": {
+      "Description": "API Gateway",
+      "Value": {
+        "Fn::Sub": [
+          "https://${idx}.execute-api.${AWS::Region}.amazonaws.com",
+          {
+            "idx": {
+              "Ref": "TestCorsApi"
+            }
+          }
+        ]
+      }
+    }
+  }
+}
diff --git a/src/http/get-foo/.arc-config b/src/http/get-foo/.arc-config
@@ -0,0 +1,5 @@
+@aws
+runtime nodejs12.x
+# memory 1152
+# timeout 30
+# concurrency 1