1{
2    "version": "1.0",
3    "parameters": {
4        "Region": {
5            "builtIn": "AWS::Region",
6            "required": false,
7            "documentation": "The AWS region used to dispatch the request.",
8            "type": "String"
9        },
10        "UseDualStack": {
11            "builtIn": "AWS::UseDualStack",
12            "required": true,
13            "default": false,
14            "documentation": "When true, use the dual-stack endpoint. If the configured endpoint does not support dual-stack, dispatching the request MAY return an error.",
15            "type": "Boolean"
16        },
17        "UseFIPS": {
18            "builtIn": "AWS::UseFIPS",
19            "required": true,
20            "default": false,
21            "documentation": "When true, send this request to the FIPS-compliant regional endpoint. If the configured endpoint does not have a FIPS compliant endpoint, dispatching the request will return an error.",
22            "type": "Boolean"
23        },
24        "Endpoint": {
25            "builtIn": "SDK::Endpoint",
26            "required": false,
27            "documentation": "Override the endpoint used to send this request",
28            "type": "String"
29        }
30    },
31    "rules": [
32        {
33            "conditions": [
34                {
35                    "fn": "isSet",
36                    "argv": [
37                        {
38                            "ref": "Endpoint"
39                        }
40                    ]
41                }
42            ],
43            "rules": [
44                {
45                    "conditions": [
46                        {
47                            "fn": "booleanEquals",
48                            "argv": [
49                                {
50                                    "ref": "UseFIPS"
51                                },
52                                true
53                            ]
54                        }
55                    ],
56                    "error": "Invalid Configuration: FIPS and custom endpoint are not supported",
57                    "type": "error"
58                },
59                {
60                    "conditions": [
61                        {
62                            "fn": "booleanEquals",
63                            "argv": [
64                                {
65                                    "ref": "UseDualStack"
66                                },
67                                true
68                            ]
69                        }
70                    ],
71                    "error": "Invalid Configuration: Dualstack and custom endpoint are not supported",
72                    "type": "error"
73                },
74                {
75                    "conditions": [],
76                    "endpoint": {
77                        "url": {
78                            "ref": "Endpoint"
79                        },
80                        "properties": {},
81                        "headers": {}
82                    },
83                    "type": "endpoint"
84                }
85            ],
86            "type": "tree"
87        },
88        {
89            "conditions": [
90                {
91                    "fn": "isSet",
92                    "argv": [
93                        {
94                            "ref": "Region"
95                        }
96                    ]
97                }
98            ],
99            "rules": [
100                {
101                    "conditions": [
102                        {
103                            "fn": "aws.partition",
104                            "argv": [
105                                {
106                                    "ref": "Region"
107                                }
108                            ],
109                            "assign": "PartitionResult"
110                        }
111                    ],
112                    "rules": [
113                        {
114                            "conditions": [
115                                {
116                                    "fn": "booleanEquals",
117                                    "argv": [
118                                        {
119                                            "ref": "UseFIPS"
120                                        },
121                                        true
122                                    ]
123                                },
124                                {
125                                    "fn": "booleanEquals",
126                                    "argv": [
127                                        {
128                                            "ref": "UseDualStack"
129                                        },
130                                        true
131                                    ]
132                                }
133                            ],
134                            "rules": [
135                                {
136                                    "conditions": [
137                                        {
138                                            "fn": "booleanEquals",
139                                            "argv": [
140                                                true,
141                                                {
142                                                    "fn": "getAttr",
143                                                    "argv": [
144                                                        {
145                                                            "ref": "PartitionResult"
146                                                        },
147                                                        "supportsFIPS"
148                                                    ]
149                                                }
150                                            ]
151                                        },
152                                        {
153                                            "fn": "booleanEquals",
154                                            "argv": [
155                                                true,
156                                                {
157                                                    "fn": "getAttr",
158                                                    "argv": [
159                                                        {
160                                                            "ref": "PartitionResult"
161                                                        },
162                                                        "supportsDualStack"
163                                                    ]
164                                                }
165                                            ]
166                                        }
167                                    ],
168                                    "rules": [
169                                        {
170                                            "conditions": [],
171                                            "endpoint": {
172                                                "url": "https://states-fips.{Region}.{PartitionResult#dualStackDnsSuffix}",
173                                                "properties": {},
174                                                "headers": {}
175                                            },
176                                            "type": "endpoint"
177                                        }
178                                    ],
179                                    "type": "tree"
180                                },
181                                {
182                                    "conditions": [],
183                                    "error": "FIPS and DualStack are enabled, but this partition does not support one or both",
184                                    "type": "error"
185                                }
186                            ],
187                            "type": "tree"
188                        },
189                        {
190                            "conditions": [
191                                {
192                                    "fn": "booleanEquals",
193                                    "argv": [
194                                        {
195                                            "ref": "UseFIPS"
196                                        },
197                                        true
198                                    ]
199                                }
200                            ],
201                            "rules": [
202                                {
203                                    "conditions": [
204                                        {
205                                            "fn": "booleanEquals",
206                                            "argv": [
207                                                {
208                                                    "fn": "getAttr",
209                                                    "argv": [
210                                                        {
211                                                            "ref": "PartitionResult"
212                                                        },
213                                                        "supportsFIPS"
214                                                    ]
215                                                },
216                                                true
217                                            ]
218                                        }
219                                    ],
220                                    "rules": [
221                                        {
222                                            "conditions": [
223                                                {
224                                                    "fn": "stringEquals",
225                                                    "argv": [
226                                                        {
227                                                            "ref": "Region"
228                                                        },
229                                                        "us-gov-west-1"
230                                                    ]
231                                                }
232                                            ],
233                                            "endpoint": {
234                                                "url": "https://states.us-gov-west-1.amazonaws.com",
235                                                "properties": {},
236                                                "headers": {}
237                                            },
238                                            "type": "endpoint"
239                                        },
240                                        {
241                                            "conditions": [],
242                                            "endpoint": {
243                                                "url": "https://states-fips.{Region}.{PartitionResult#dnsSuffix}",
244                                                "properties": {},
245                                                "headers": {}
246                                            },
247                                            "type": "endpoint"
248                                        }
249                                    ],
250                                    "type": "tree"
251                                },
252                                {
253                                    "conditions": [],
254                                    "error": "FIPS is enabled but this partition does not support FIPS",
255                                    "type": "error"
256                                }
257                            ],
258                            "type": "tree"
259                        },
260                        {
261                            "conditions": [
262                                {
263                                    "fn": "booleanEquals",
264                                    "argv": [
265                                        {
266                                            "ref": "UseDualStack"
267                                        },
268                                        true
269                                    ]
270                                }
271                            ],
272                            "rules": [
273                                {
274                                    "conditions": [
275                                        {
276                                            "fn": "booleanEquals",
277                                            "argv": [
278                                                true,
279                                                {
280                                                    "fn": "getAttr",
281                                                    "argv": [
282                                                        {
283                                                            "ref": "PartitionResult"
284                                                        },
285                                                        "supportsDualStack"
286                                                    ]
287                                                }
288                                            ]
289                                        }
290                                    ],
291                                    "rules": [
292                                        {
293                                            "conditions": [],
294                                            "endpoint": {
295                                                "url": "https://states.{Region}.{PartitionResult#dualStackDnsSuffix}",
296                                                "properties": {},
297                                                "headers": {}
298                                            },
299                                            "type": "endpoint"
300                                        }
301                                    ],
302                                    "type": "tree"
303                                },
304                                {
305                                    "conditions": [],
306                                    "error": "DualStack is enabled but this partition does not support DualStack",
307                                    "type": "error"
308                                }
309                            ],
310                            "type": "tree"
311                        },
312                        {
313                            "conditions": [],
314                            "endpoint": {
315                                "url": "https://states.{Region}.{PartitionResult#dnsSuffix}",
316                                "properties": {},
317                                "headers": {}
318                            },
319                            "type": "endpoint"
320                        }
321                    ],
322                    "type": "tree"
323                }
324            ],
325            "type": "tree"
326        },
327        {
328            "conditions": [],
329            "error": "Invalid Configuration: Missing Region",
330            "type": "error"
331        }
332    ]
333}