apollo-federation 2.13.1

Apollo Federation
Documentation
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
---
source: apollo-federation/src/connectors/expand/tests/mod.rs
expression: connectors.by_service_name
input_file: apollo-federation/src/connectors/expand/tests/schemas/expand/simple.graphql
---
{
    "connectors_Query_users_0": Connector {
        id: ConnectId {
            subgraph_name: "connectors",
            source_name: Some(
                "example",
            ),
            named: None,
            directive: Field(
                ObjectOrInterfaceFieldDirectivePosition {
                    field: Object(Query.users),
                    directive_name: "connect",
                    directive_index: 0,
                },
            ),
        },
        transport: HttpJsonTransport {
            source_template: Some(
                StringTemplate {
                    parts: [
                        Constant(
                            Constant {
                                value: "http://example",
                                location: 0..14,
                            },
                        ),
                    ],
                },
            ),
            connect_template: StringTemplate {
                parts: [
                    Constant(
                        Constant {
                            value: "/",
                            location: 0..1,
                        },
                    ),
                ],
            },
            method: Get,
            headers: [],
            body: None,
            source_path: None,
            source_query_params: None,
            connect_path: None,
            connect_query_params: None,
        },
        selection: JSONSelection {
            inner: Named(
                SubSelection {
                    selections: [
                        NamedSelection {
                            prefix: None,
                            path: PathSelection {
                                path: WithRange {
                                    node: Key(
                                        WithRange {
                                            node: Field(
                                                "id",
                                            ),
                                            range: Some(
                                                0..2,
                                            ),
                                        },
                                        WithRange {
                                            node: Empty,
                                            range: Some(
                                                2..2,
                                            ),
                                        },
                                    ),
                                    range: Some(
                                        0..2,
                                    ),
                                },
                            },
                        },
                        NamedSelection {
                            prefix: None,
                            path: PathSelection {
                                path: WithRange {
                                    node: Key(
                                        WithRange {
                                            node: Field(
                                                "a",
                                            ),
                                            range: Some(
                                                3..4,
                                            ),
                                        },
                                        WithRange {
                                            node: Empty,
                                            range: Some(
                                                4..4,
                                            ),
                                        },
                                    ),
                                    range: Some(
                                        3..4,
                                    ),
                                },
                            },
                        },
                    ],
                    range: Some(
                        0..4,
                    ),
                },
            ),
            spec: V0_1,
        },
        config: None,
        max_requests: None,
        entity_resolver: None,
        spec: V0_1,
        schema_subtypes_map: {
            "_Entity": {
                "User",
            },
        },
        request_headers: {},
        response_headers: {},
        request_variable_keys: {},
        response_variable_keys: {},
        batch_settings: None,
        error_settings: ConnectorErrorsSettings {
            message: None,
            source_extensions: None,
            connect_extensions: None,
            connect_is_success: None,
        },
        label: Label(
            "connectors.example http: GET /",
        ),
    },
    "connectors_Query_user_0": Connector {
        id: ConnectId {
            subgraph_name: "connectors",
            source_name: Some(
                "example",
            ),
            named: None,
            directive: Field(
                ObjectOrInterfaceFieldDirectivePosition {
                    field: Object(Query.user),
                    directive_name: "connect",
                    directive_index: 0,
                },
            ),
        },
        transport: HttpJsonTransport {
            source_template: Some(
                StringTemplate {
                    parts: [
                        Constant(
                            Constant {
                                value: "http://example",
                                location: 0..14,
                            },
                        ),
                    ],
                },
            ),
            connect_template: StringTemplate {
                parts: [
                    Constant(
                        Constant {
                            value: "/",
                            location: 0..1,
                        },
                    ),
                    Expression(
                        Expression {
                            expression: JSONSelection {
                                inner: Path(
                                    PathSelection {
                                        path: WithRange {
                                            node: Var(
                                                WithRange {
                                                    node: $args,
                                                    range: Some(
                                                        0..5,
                                                    ),
                                                },
                                                WithRange {
                                                    node: Key(
                                                        WithRange {
                                                            node: Field(
                                                                "id",
                                                            ),
                                                            range: Some(
                                                                6..8,
                                                            ),
                                                        },
                                                        WithRange {
                                                            node: Empty,
                                                            range: Some(
                                                                8..8,
                                                            ),
                                                        },
                                                    ),
                                                    range: Some(
                                                        5..8,
                                                    ),
                                                },
                                            ),
                                            range: Some(
                                                0..8,
                                            ),
                                        },
                                    },
                                ),
                                spec: V0_1,
                            },
                            location: 2..10,
                        },
                    ),
                ],
            },
            method: Get,
            headers: [],
            body: None,
            source_path: None,
            source_query_params: None,
            connect_path: None,
            connect_query_params: None,
        },
        selection: JSONSelection {
            inner: Named(
                SubSelection {
                    selections: [
                        NamedSelection {
                            prefix: None,
                            path: PathSelection {
                                path: WithRange {
                                    node: Key(
                                        WithRange {
                                            node: Field(
                                                "id",
                                            ),
                                            range: Some(
                                                0..2,
                                            ),
                                        },
                                        WithRange {
                                            node: Empty,
                                            range: Some(
                                                2..2,
                                            ),
                                        },
                                    ),
                                    range: Some(
                                        0..2,
                                    ),
                                },
                            },
                        },
                        NamedSelection {
                            prefix: None,
                            path: PathSelection {
                                path: WithRange {
                                    node: Key(
                                        WithRange {
                                            node: Field(
                                                "a",
                                            ),
                                            range: Some(
                                                3..4,
                                            ),
                                        },
                                        WithRange {
                                            node: Empty,
                                            range: Some(
                                                4..4,
                                            ),
                                        },
                                    ),
                                    range: Some(
                                        3..4,
                                    ),
                                },
                            },
                        },
                        NamedSelection {
                            prefix: None,
                            path: PathSelection {
                                path: WithRange {
                                    node: Key(
                                        WithRange {
                                            node: Field(
                                                "b",
                                            ),
                                            range: Some(
                                                5..6,
                                            ),
                                        },
                                        WithRange {
                                            node: Empty,
                                            range: Some(
                                                6..6,
                                            ),
                                        },
                                    ),
                                    range: Some(
                                        5..6,
                                    ),
                                },
                            },
                        },
                    ],
                    range: Some(
                        0..6,
                    ),
                },
            ),
            spec: V0_1,
        },
        config: None,
        max_requests: None,
        entity_resolver: Some(
            Explicit,
        ),
        spec: V0_1,
        schema_subtypes_map: {
            "_Entity": {
                "User",
            },
        },
        request_headers: {},
        response_headers: {},
        request_variable_keys: {
            $args: {
                "id",
            },
        },
        response_variable_keys: {},
        batch_settings: None,
        error_settings: ConnectorErrorsSettings {
            message: None,
            source_extensions: None,
            connect_extensions: None,
            connect_is_success: None,
        },
        label: Label(
            "connectors.example http: GET /{$args.id}",
        ),
    },
    "connectors_User_d_0": Connector {
        id: ConnectId {
            subgraph_name: "connectors",
            source_name: Some(
                "example",
            ),
            named: None,
            directive: Field(
                ObjectOrInterfaceFieldDirectivePosition {
                    field: Object(User.d),
                    directive_name: "connect",
                    directive_index: 0,
                },
            ),
        },
        transport: HttpJsonTransport {
            source_template: Some(
                StringTemplate {
                    parts: [
                        Constant(
                            Constant {
                                value: "http://example",
                                location: 0..14,
                            },
                        ),
                    ],
                },
            ),
            connect_template: StringTemplate {
                parts: [
                    Constant(
                        Constant {
                            value: "/",
                            location: 0..1,
                        },
                    ),
                    Expression(
                        Expression {
                            expression: JSONSelection {
                                inner: Path(
                                    PathSelection {
                                        path: WithRange {
                                            node: Var(
                                                WithRange {
                                                    node: $this,
                                                    range: Some(
                                                        0..5,
                                                    ),
                                                },
                                                WithRange {
                                                    node: Key(
                                                        WithRange {
                                                            node: Field(
                                                                "c",
                                                            ),
                                                            range: Some(
                                                                6..7,
                                                            ),
                                                        },
                                                        WithRange {
                                                            node: Empty,
                                                            range: Some(
                                                                7..7,
                                                            ),
                                                        },
                                                    ),
                                                    range: Some(
                                                        5..7,
                                                    ),
                                                },
                                            ),
                                            range: Some(
                                                0..7,
                                            ),
                                        },
                                    },
                                ),
                                spec: V0_1,
                            },
                            location: 2..9,
                        },
                    ),
                    Constant(
                        Constant {
                            value: "/d",
                            location: 10..12,
                        },
                    ),
                ],
            },
            method: Get,
            headers: [],
            body: Some(
                JSONSelection {
                    inner: Named(
                        SubSelection {
                            selections: [
                                NamedSelection {
                                    prefix: Alias(
                                        Alias {
                                            name: WithRange {
                                                node: Field(
                                                    "with_b",
                                                ),
                                                range: Some(
                                                    0..6,
                                                ),
                                            },
                                            range: Some(
                                                0..7,
                                            ),
                                        },
                                    ),
                                    path: PathSelection {
                                        path: WithRange {
                                            node: Var(
                                                WithRange {
                                                    node: $this,
                                                    range: Some(
                                                        8..13,
                                                    ),
                                                },
                                                WithRange {
                                                    node: Key(
                                                        WithRange {
                                                            node: Field(
                                                                "b",
                                                            ),
                                                            range: Some(
                                                                14..15,
                                                            ),
                                                        },
                                                        WithRange {
                                                            node: Empty,
                                                            range: Some(
                                                                15..15,
                                                            ),
                                                        },
                                                    ),
                                                    range: Some(
                                                        13..15,
                                                    ),
                                                },
                                            ),
                                            range: Some(
                                                8..15,
                                            ),
                                        },
                                    },
                                },
                            ],
                            range: Some(
                                0..15,
                            ),
                        },
                    ),
                    spec: V0_1,
                },
            ),
            source_path: None,
            source_query_params: None,
            connect_path: None,
            connect_query_params: None,
        },
        selection: JSONSelection {
            inner: Path(
                PathSelection {
                    path: WithRange {
                        node: Var(
                            WithRange {
                                node: $,
                                range: Some(
                                    0..1,
                                ),
                            },
                            WithRange {
                                node: Empty,
                                range: Some(
                                    1..1,
                                ),
                            },
                        ),
                        range: Some(
                            0..1,
                        ),
                    },
                },
            ),
            spec: V0_1,
        },
        config: None,
        max_requests: None,
        entity_resolver: Some(
            Implicit,
        ),
        spec: V0_1,
        schema_subtypes_map: {
            "_Entity": {
                "User",
            },
        },
        request_headers: {},
        response_headers: {},
        request_variable_keys: {
            $this: {
                "c",
                "b",
            },
        },
        response_variable_keys: {},
        batch_settings: None,
        error_settings: ConnectorErrorsSettings {
            message: None,
            source_extensions: None,
            connect_extensions: None,
            connect_is_success: None,
        },
        label: Label(
            "connectors.example http: GET /{$this.c}/d",
        ),
    },
}