-
Notifications
You must be signed in to change notification settings - Fork 307
/
event_schema_api.go
659 lines (546 loc) · 18.8 KB
/
event_schema_api.go
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
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
// Package event_schema
// Handling HTTP requests to expose the schemas
package event_schema
import (
"encoding/json"
"fmt"
"net/http"
"strconv"
"strings"
"github.com/go-chi/chi/v5"
"github.com/google/uuid"
"github.com/rudderlabs/rudder-server/gateway/response"
"github.com/rudderlabs/rudder-server/utils/misc"
)
func handleBasicAuth(r *http.Request) error {
username, password, ok := r.BasicAuth()
if !ok {
return fmt.Errorf("Basic auth credentials missing")
}
if username != adminUser || password != adminPassword {
return fmt.Errorf("Invalid admin credentials")
}
return nil
}
func (manager *EventSchemaManagerT) GetEventModels(w http.ResponseWriter, r *http.Request) {
err := handleBasicAuth(r)
if err != nil {
http.Error(w, response.MakeResponse(err.Error()), 400)
return
}
if r.Method != http.MethodGet {
http.Error(w, response.MakeResponse("Only HTTP GET method is supported"), 400)
return
}
writeKeys, ok := r.URL.Query()["WriteKey"]
writeKey := ""
if ok && writeKeys[0] != "" {
writeKey = writeKeys[0]
}
eventTypes := manager.fetchEventModelsByWriteKey(writeKey)
eventTypesJSON, err := json.Marshal(eventTypes)
if err != nil {
http.Error(w, response.MakeResponse("Internal Error: Failed to Marshal event types"), 500)
return
}
_, _ = w.Write(eventTypesJSON)
}
func (manager *EventSchemaManagerT) GetJsonSchemas(w http.ResponseWriter, r *http.Request) {
err := handleBasicAuth(r)
if err != nil {
http.Error(w, response.MakeResponse(err.Error()), 400)
return
}
if r.Method != http.MethodGet {
http.Error(w, response.MakeResponse("Only HTTP GET method is supported"), 400)
return
}
writeKeys, ok := r.URL.Query()["WriteKey"]
writeKey := ""
if ok && writeKeys[0] != "" {
writeKey = writeKeys[0]
}
eventModels := manager.fetchEventModelsByWriteKey(writeKey)
if len(eventModels) == 0 {
http.Error(w, response.MakeResponse("No event models exists to create a tracking plan."), 404)
return
}
// generating json schema from eventModels
jsonSchemas, err := generateJsonSchFromEM(eventModels)
if err != nil {
http.Error(w, response.MakeResponse("Internal Error: Failed to Marshal event types"), 500)
return
}
_, _ = w.Write(jsonSchemas)
}
type JSPropertyTypeT struct {
Type []string `json:"type"`
}
type JSPropertyT struct {
Property map[string]interface{} `json:"properties"`
}
type JsonSchemaT struct {
Schema map[string]interface{} `json:"schema"`
SchemaType string `json:"schemaType"`
SchemaTIdentifier string `json:"schemaIdentifier"`
}
// generateJsonSchFromEM Generates Json schemas from Event Models
func generateJsonSchFromEM(eventModels []*EventModelT) ([]byte, error) {
var jsonSchemas []JsonSchemaT
for _, eventModel := range eventModels {
flattenedSch := make(map[string]interface{})
err := json.Unmarshal(eventModel.Schema, &flattenedSch)
if err != nil {
pkgLogger.Errorf("Error unmarshalling eventModelSch: %v for ID: %v", err, eventModel.ID)
continue
}
unFlattenedSch, err := unflatten(flattenedSch)
if err != nil {
pkgLogger.Errorf("Error unflattening flattenedSch: %v for ID: %v", err, eventModel.ID)
continue
}
schemaProperties, err := getETSchProp(eventModel.EventType, unFlattenedSch)
if err != nil {
pkgLogger.Errorf("Error while getting schema properties: %v for ID: %v", err, eventModel.ID)
continue
}
jsonSchema := generateJsonSchFromSchProp(schemaProperties)
jsonSchema["additionalProperties"] = false
jsonSchema["$schema"] = "http://json-schema.org/draft-07/schema#"
// TODO: validate if the jsonSchema is correct.
jsonSchemas = append(jsonSchemas, JsonSchemaT{
Schema: jsonSchema,
SchemaType: eventModel.EventType,
SchemaTIdentifier: eventModel.EventIdentifier,
})
}
eventJsonSchs, err := json.Marshal(jsonSchemas)
if err != nil {
return nil, err
}
return eventJsonSchs, nil
}
// getETSchProp Get Event Type schema from Event Model Schema
// Empty map schema is allowed for event json schema
func getETSchProp(eventType string, eventModelSch map[string]interface{}) (map[string]interface{}, error) {
switch eventType {
case "track", "screen", "page":
filtered, _ := eventModelSch["properties"].(map[string]interface{})
return filtered, nil
case "identify", "group":
filtered, _ := eventModelSch["traits"].(map[string]interface{})
return filtered, nil
}
return nil, fmt.Errorf("invalid eventType")
}
// generateJsonSchFromSchProp Generated Json schema from unflattened schema properties.
func generateJsonSchFromSchProp(schemaProperties map[string]interface{}) map[string]interface{} {
jsProperties := JSPropertyT{
Property: make(map[string]interface{}),
}
finalSchema := make(map[string]interface{})
for k, v := range schemaProperties {
switch value := v.(type) {
case string:
jsProperties.Property[k] = getPropertyTypesFromSchValue(value)
case map[string]interface{}:
// check if map is an array or map
if checkIfArray(value) {
var vType interface{}
for _, v := range value {
vt, ok := v.(string)
if ok {
vType = getPropertyTypesFromSchValue(vt)
} else {
vType = generateJsonSchFromSchProp(v.(map[string]interface{}))
}
break
}
jsProperties.Property[k] = map[string]interface{}{
"type": "array",
"items": vType,
}
break
}
jsProperties.Property[k] = generateJsonSchFromSchProp(value)
default:
pkgLogger.Errorf("unknown type found")
}
}
finalSchema["properties"] = jsProperties.Property
finalSchema["type"] = "object"
return finalSchema
}
func getPropertyTypesFromSchValue(schVal string) *JSPropertyTypeT {
types := strings.Split(schVal, ",")
for i, v := range types {
types[i] = misc.GetJsonSchemaDTFromGoDT(v)
}
return &JSPropertyTypeT{
Type: types,
}
}
// prop.myarr.0
// will not be able to say if above is prop{myarr:[0]} or prop{myarr{"0":0}}
func checkIfArray(value map[string]interface{}) bool {
if len(value) == 0 {
return false
}
for k := range value {
_, err := strconv.Atoi(k)
if err != nil {
return false
}
// need not check the array continuity
}
return true
}
// https://play.golang.org/p/4juOff38ea
// or use https://pkg.go.dev/github.com/wolfeidau/unflatten
// or use https://github.com/nqd/flat
func unflatten(flat map[string]interface{}) (map[string]interface{}, error) {
unflat := map[string]interface{}{}
for key, value := range flat {
keyParts := strings.Split(key, ".")
// Walk the keys until we get to a leaf node.
m := unflat
for i, k := range keyParts[:len(keyParts)-1] {
v, exists := m[k]
if !exists {
newMap := map[string]interface{}{}
m[k] = newMap
m = newMap
continue
}
innerMap, ok := v.(map[string]interface{})
if !ok {
fmt.Printf("key=%v is not an object\n", strings.Join(keyParts[0:i+1], "."))
newMap := map[string]interface{}{}
m[k] = newMap
m = newMap
continue
}
m = innerMap
}
leafKey := keyParts[len(keyParts)-1]
if _, exists := m[leafKey]; exists {
fmt.Printf("key=%v already exists", key)
continue
}
m[keyParts[len(keyParts)-1]] = value
}
return unflat, nil
}
func (manager *EventSchemaManagerT) GetEventVersions(w http.ResponseWriter, r *http.Request) {
err := handleBasicAuth(r)
if err != nil {
http.Error(w, response.MakeResponse(err.Error()), 400)
return
}
if r.Method != http.MethodGet {
http.Error(w, response.MakeResponse("Only HTTP GET method is supported"), 400)
return
}
eventIDs, ok := r.URL.Query()["EventID"]
if !ok {
http.Error(w, response.MakeResponse("Mandatory field: EventID missing"), 400)
return
}
eventID := eventIDs[0]
schemaVersions := manager.fetchSchemaVersionsByEventID(eventID)
schemaVersionsJSON, err := json.Marshal(schemaVersions)
if err != nil {
http.Error(w, response.MakeResponse("Internal Error: Failed to Marshal event types"), 500)
return
}
_, _ = w.Write(schemaVersionsJSON)
}
// TODO: Complete this
func (manager *EventSchemaManagerT) GetKeyCounts(w http.ResponseWriter, r *http.Request) {
err := handleBasicAuth(r)
if err != nil {
http.Error(w, response.MakeResponse(err.Error()), 400)
return
}
if r.Method != http.MethodGet {
http.Error(w, response.MakeResponse("Only HTTP GET method is supported"), 400)
return
}
eventID := chi.URLParam(r, "EventID")
if eventID == "" {
http.Error(w, response.MakeResponse("Mandatory field: EventID missing"), 400)
return
}
keyCounts, err := manager.getKeyCounts(eventID)
if err != nil {
logID := uuid.New().String()
pkgLogger.Errorf("logID : %s, err: %s", logID, err.Error())
http.Error(w, response.MakeResponse(fmt.Sprintf("Internal Error: An error has been logged with logID : %s", logID)), 500)
return
}
keyCountsJSON, err := json.Marshal(keyCounts)
if err != nil {
logID := uuid.New().String()
pkgLogger.Errorf("logID : %s, err: %s", logID, err.Error())
http.Error(w, response.MakeResponse(fmt.Sprintf("Interna Error: An error has been logged with logID : %s", logID)), 500)
return
}
_, _ = w.Write(keyCountsJSON)
}
func (manager *EventSchemaManagerT) getKeyCounts(eventID string) (keyCounts map[string]int64, err error) {
schemaVersions := manager.fetchSchemaVersionsByEventID(eventID)
keyCounts = make(map[string]int64)
for _, sv := range schemaVersions {
var schema map[string]string
err = json.Unmarshal(sv.Schema, &schema)
if err != nil {
return
}
for k := range schema {
_, ok := keyCounts[k]
if !ok {
keyCounts[k] = 0
}
keyCounts[k] = keyCounts[k] + sv.TotalCount
}
}
return
}
func (manager *EventSchemaManagerT) GetEventModelMetadata(w http.ResponseWriter, r *http.Request) {
err := handleBasicAuth(r)
if err != nil {
http.Error(w, response.MakeResponse(err.Error()), 400)
return
}
if r.Method != http.MethodGet {
http.Error(w, response.MakeResponse("Only HTTP GET method is supported"), 400)
return
}
eventID := chi.URLParam(r, "EventID")
if eventID == "" {
http.Error(w, response.MakeResponse("Mandatory field: EventID missing"), 400)
return
}
metadata, err := manager.fetchMetadataByEventModelID(eventID)
if err != nil {
http.Error(w, response.MakeResponse(err.Error()), 400)
return
}
metadataJSON, err := json.Marshal(metadata)
if err != nil {
http.Error(w, response.MakeResponse("Internal Error: Failed to Marshal metadata"), 500)
return
}
_, _ = w.Write(metadataJSON)
}
func (manager *EventSchemaManagerT) GetSchemaVersionMetadata(w http.ResponseWriter, r *http.Request) {
err := handleBasicAuth(r)
if err != nil {
http.Error(w, response.MakeResponse(err.Error()), 400)
return
}
if r.Method != http.MethodGet {
http.Error(w, response.MakeResponse("Only HTTP GET method is supported"), 400)
return
}
versionID := chi.URLParam(r, "VersionID")
if versionID == "" {
http.Error(w, response.MakeResponse("Mandatory field: VersionID missing"), 400)
return
}
metadata, err := manager.fetchMetadataByEventVersionID(versionID)
if err != nil {
http.Error(w, response.MakeResponse(err.Error()), 400)
return
}
metadataJSON, err := json.Marshal(metadata)
if err != nil {
http.Error(w, response.MakeResponse("Internal Error: Failed to Marshal metadata"), 500)
return
}
_, _ = w.Write(metadataJSON)
}
func (manager *EventSchemaManagerT) GetSchemaVersionMissingKeys(w http.ResponseWriter, r *http.Request) {
err := handleBasicAuth(r)
if err != nil {
http.Error(w, response.MakeResponse(err.Error()), 400)
return
}
if r.Method != http.MethodGet {
http.Error(w, response.MakeResponse("Only HTTP GET method is supported"), 400)
return
}
versionID := chi.URLParam(r, "VersionID")
if versionID == "" {
http.Error(w, response.MakeResponse("Mandatory field: VersionID missing"), 400)
return
}
schema, err := manager.fetchSchemaVersionByID(versionID)
if err != nil {
http.Error(w, response.MakeResponse(err.Error()), 500)
return
}
eventModel, err := manager.fetchEventModelByID(schema.EventModelID)
if err != nil {
_, _ = w.Write([]byte("[]"))
return
}
schemaMap := make(map[string]string)
masterSchemaMap := make(map[string]string)
err = json.Unmarshal(schema.Schema, &schemaMap)
if err != nil {
logID := uuid.New().String()
pkgLogger.Errorf("logID : %s, err: %s", logID, err.Error())
http.Error(w, response.MakeResponse(fmt.Sprintf("Internal Error: An error has been logged with logID : %s", logID)), 500)
return
}
err = json.Unmarshal(eventModel.Schema, &masterSchemaMap)
if err != nil {
logID := uuid.New().String()
pkgLogger.Errorf("logID : %s, err: %s", logID, err.Error())
http.Error(w, response.MakeResponse(fmt.Sprintf("Interna Error: An error has been logged with logID : %s", logID)), 500)
return
}
missingKeys := make([]string, 0)
for k := range masterSchemaMap {
if _, ok := schemaMap[k]; !ok {
missingKeys = append(missingKeys, k)
}
}
missingKeyJSON, err := json.Marshal(missingKeys)
if err != nil {
http.Error(w, response.MakeResponse("Internal Error: Failed to Marshal metadata"), 500)
return
}
_, _ = w.Write(missingKeyJSON)
}
func (manager *EventSchemaManagerT) fetchEventModelsByWriteKey(writeKey string) []*EventModelT {
var eventModelsSelectSQL string
if writeKey == "" {
eventModelsSelectSQL = fmt.Sprintf(`SELECT id, uuid, write_key, event_type, event_model_identifier, created_at, schema, total_count, last_seen FROM %s`, EVENT_MODELS_TABLE)
} else {
eventModelsSelectSQL = fmt.Sprintf(`SELECT id, uuid, write_key, event_type, event_model_identifier, created_at, schema, total_count, last_seen FROM %s WHERE write_key = '%s'`, EVENT_MODELS_TABLE, writeKey)
}
rows, err := manager.dbHandle.Query(eventModelsSelectSQL)
assertError(err)
defer func() { _ = rows.Close() }()
eventModels := make([]*EventModelT, 0)
for rows.Next() {
var eventModel EventModelT
err := rows.Scan(&eventModel.ID, &eventModel.UUID, &eventModel.WriteKey, &eventModel.EventType,
&eventModel.EventIdentifier, &eventModel.CreatedAt, &eventModel.Schema, &eventModel.TotalCount, &eventModel.LastSeen)
assertError(err)
eventModels = append(eventModels, &eventModel)
}
return eventModels
}
func (manager *EventSchemaManagerT) fetchSchemaVersionsByEventID(eventID string) []*SchemaVersionT {
schemaVersionsSelectSQL := fmt.Sprintf(`SELECT id, uuid, event_model_id, schema, first_seen, last_seen, total_count FROM %s WHERE event_model_id = '%s'`, SCHEMA_VERSIONS_TABLE, eventID)
rows, err := manager.dbHandle.Query(schemaVersionsSelectSQL)
assertError(err)
defer func() { _ = rows.Close() }()
schemaVersions := make([]*SchemaVersionT, 0)
for rows.Next() {
var schemaVersion SchemaVersionT
err := rows.Scan(&schemaVersion.ID, &schemaVersion.UUID, &schemaVersion.EventModelID,
&schemaVersion.Schema, &schemaVersion.FirstSeen, &schemaVersion.LastSeen, &schemaVersion.TotalCount)
assertError(err)
schemaVersions = append(schemaVersions, &schemaVersion)
}
return schemaVersions
}
func (manager *EventSchemaManagerT) fetchEventModelByID(id string) (*EventModelT, error) {
eventModelsSelectSQL := fmt.Sprintf(`SELECT id, uuid, write_key, event_type, event_model_identifier, created_at, schema, total_count, last_seen FROM %s WHERE uuid = '%s'`, EVENT_MODELS_TABLE, id)
rows, err := manager.dbHandle.Query(eventModelsSelectSQL)
assertError(err)
defer func() { _ = rows.Close() }()
eventModels := make([]*EventModelT, 0)
for rows.Next() {
var eventModel EventModelT
err := rows.Scan(&eventModel.ID, &eventModel.UUID, &eventModel.WriteKey, &eventModel.EventType,
&eventModel.EventIdentifier, &eventModel.CreatedAt, &eventModel.Schema, &eventModel.TotalCount, &eventModel.LastSeen)
assertError(err)
eventModels = append(eventModels, &eventModel)
}
if len(eventModels) == 0 {
err = fmt.Errorf("No eventModels found for given eventModelID : %s", id)
return nil, err
}
if len(eventModels) > 1 {
panic(fmt.Sprintf("More than one entry found for eventModelId : %s. Make sure a unique key constraint is present on uuid column", id))
}
return eventModels[0], nil
}
func (manager *EventSchemaManagerT) fetchSchemaVersionByID(id string) (*SchemaVersionT, error) {
schemaVersionsSelectSQL := fmt.Sprintf(`SELECT id, uuid, event_model_id, schema, first_seen, last_seen, total_count FROM %s WHERE uuid = '%s'`, SCHEMA_VERSIONS_TABLE, id)
rows, err := manager.dbHandle.Query(schemaVersionsSelectSQL)
assertError(err)
defer func() { _ = rows.Close() }()
schemaVersions := make([]*SchemaVersionT, 0)
for rows.Next() {
var schemaVersion SchemaVersionT
err := rows.Scan(&schemaVersion.ID, &schemaVersion.UUID, &schemaVersion.EventModelID, &schemaVersion.Schema, &schemaVersion.FirstSeen, &schemaVersion.LastSeen, &schemaVersion.TotalCount)
assertError(err)
schemaVersions = append(schemaVersions, &schemaVersion)
}
if len(schemaVersions) == 0 {
err = fmt.Errorf("No SchemaVersion found for given VersionID : %s", id)
return nil, err
}
if len(schemaVersions) > 1 {
panic(fmt.Sprintf("More than one entry found for eventVersionID : %s. Make sure a unique key constraint is present on uuid column", id))
}
return schemaVersions[0], nil
}
func (manager *EventSchemaManagerT) fetchMetadataByEventVersionID(eventVersionID string) (metadata *MetaDataT, err error) {
metadataSelectSQL := fmt.Sprintf(`SELECT metadata FROM %s WHERE uuid = '%s'`, SCHEMA_VERSIONS_TABLE, eventVersionID)
rows, err := manager.dbHandle.Query(metadataSelectSQL)
assertError(err)
defer func() { _ = rows.Close() }()
metadatas := make([]*MetaDataT, 0)
for rows.Next() {
var metadataRaw []byte
err := rows.Scan(&metadataRaw)
assertError(err)
var metadata MetaDataT
err = json.Unmarshal(metadataRaw, &metadata)
assertError(err)
metadatas = append(metadatas, &metadata)
}
if len(metadatas) > 1 {
err = fmt.Errorf("More than one entry found for eventVersionID : %s. Make sure a unique key constraint is present on uuid column", eventVersionID)
assertError(err)
}
if len(metadatas) == 0 {
err = fmt.Errorf("No Metadata found for given VersionID : %s", eventVersionID)
return nil, err
}
metadata = metadatas[0]
return
}
func (manager *EventSchemaManagerT) fetchMetadataByEventModelID(eventModelID string) (metadata *MetaDataT, err error) {
metadataSelectSQL := fmt.Sprintf(`SELECT metadata FROM %s WHERE uuid = '%s'`, EVENT_MODELS_TABLE, eventModelID)
rows, err := manager.dbHandle.Query(metadataSelectSQL)
assertError(err)
defer func() { _ = rows.Close() }()
metadatas := make([]*MetaDataT, 0)
for rows.Next() {
var metadataRaw []byte
err := rows.Scan(&metadataRaw)
assertError(err)
var metadata MetaDataT
err = json.Unmarshal(metadataRaw, &metadata)
assertError(err)
metadatas = append(metadatas, &metadata)
}
if len(metadatas) > 1 {
err = fmt.Errorf("More than one entry found for eventVersionID : %s. Make sure a unique key constraint is present on uuid column", eventModelID)
assertError(err)
}
if len(metadatas) == 0 {
err = fmt.Errorf("No Metadata found for given VersionID : %s", eventModelID)
return nil, err
}
metadata = metadatas[0]
return
}