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fix!: reconnect, missing and duped events, remove max reconnect (#660)
Signed-off-by: Todd Baert <[email protected]>
1 parent ab754f5 commit 8489c2f

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+207
-259
lines changed

‎.github/workflows/ci.yml‎

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@@ -38,13 +38,21 @@ jobs:
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services:
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flagd:
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image: ghcr.io/open-feature/flagd-testbed:v0.4.4
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image: ghcr.io/open-feature/flagd-testbed:v0.4.6
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ports:
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- 8013:8013
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flagd-unstable:
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image: ghcr.io/open-feature/flagd-testbed-unstable:v0.4.6
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ports:
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- 8014:8013
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sync:
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image: ghcr.io/open-feature/sync-testbed:v0.4.4
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image: ghcr.io/open-feature/sync-testbed:v0.4.6
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ports:
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- 9090:9090
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sync-unstable:
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image: ghcr.io/open-feature/sync-testbed-unstable:v0.4.6
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ports:
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- 9091:9090
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steps:
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- uses: actions/checkout@v4

‎libs/providers/flagd/README.md‎

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@@ -28,17 +28,16 @@ Options can be defined in the constructor or as environment variables. Construct
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### Available Configuration Options
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| Option name | Environment variable name | Type | Default | Supported values |
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|-----------------------|--------------------------------|---------|-----------|------------------|
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| host | FLAGD_HOST | string | localhost | |
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| port | FLAGD_PORT | number | 8013 | |
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| tls | FLAGD_TLS | boolean | false | |
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| socketPath | FLAGD_SOCKET_PATH | string | - | |
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| resolverType | FLAGD_SOURCE_RESOLVER | string | rpc | rpc, in-process |
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| selector | FLAGD_SOURCE_SELECTOR | string | - | |
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| cache | FLAGD_CACHE | string | lru | lru,disabled |
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| maxCacheSize | FLAGD_MAX_CACHE_SIZE | int | 1000 | |
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| maxEventStreamRetries | FLAGD_MAX_EVENT_STREAM_RETRIES | int | 5 | |
31+
| Option name | Environment variable name | Type | Default | Supported values |
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| -------------------------------------- | ------------------------------ | ------- | --------- | ---------------- |
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| host | FLAGD_HOST | string | localhost | |
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| port | FLAGD_PORT | number | 8013 | |
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| tls | FLAGD_TLS | boolean | false | |
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| socketPath | FLAGD_SOCKET_PATH | string | - | |
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| resolverType | FLAGD_SOURCE_RESOLVER | string | rpc | rpc, in-process |
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| selector | FLAGD_SOURCE_SELECTOR | string | - | |
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| cache | FLAGD_CACHE | string | lru | lru,disabled |
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| maxCacheSize | FLAGD_MAX_CACHE_SIZE | int | 1000 | |
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Below are examples of usage patterns.
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@@ -80,7 +79,7 @@ In the above example, the provider expects a flag sync service implementation to
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The flagd provider emits `PROVIDER_READY`, `PROVIDER_ERROR` and `PROVIDER_CONFIGURATION_CHANGED` events.
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| SDK event | Originating action in flagd |
83-
|----------------------------------|---------------------------------------------------------------------------------|
82+
| -------------------------------- | ------------------------------------------------------------------------------- |
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| `PROVIDER_READY` | The streaming connection with flagd has been established. |
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| `PROVIDER_ERROR` | The streaming connection with flagd has been broken. |
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| `PROVIDER_CONFIGURATION_CHANGED` | A flag configuration (default value, targeting rule, etc) in flagd has changed. |
@@ -90,7 +89,7 @@ For general information on events, see the [official documentation](https://open
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### Flag Metadata
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| Field | Type | Value |
93-
|---------|--------|---------------------------------------------------|
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| ------- | ------ | ------------------------------------------------- |
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| `scope` | string | "selector" set for the associated source in flagd |
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## Building

‎libs/providers/flagd/flagd-testbed‎

‎libs/providers/flagd/package.json‎

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Original file line numberDiff line numberDiff line change
@@ -9,7 +9,7 @@
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"@openfeature/flagd-core": ">=0.1.1"
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},
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"peerDependencies": {
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"@grpc/grpc-js": "^1.6.0",
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"@grpc/grpc-js": "~1.8.0",
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"@openfeature/server-sdk": ">=1.6.0"
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}
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}

‎libs/providers/flagd/src/e2e/jest.config.ts‎

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Original file line numberDiff line numberDiff line change
@@ -7,4 +7,5 @@ export default {
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moduleNameMapper: {
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'@openfeature/flagd-core': ['<rootDir>/../../../../shared/flagd-core/src'],
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},
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globalTeardown: './tear-down.ts',
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};

‎libs/providers/flagd/src/e2e/setup-in-process-provider.ts‎

Lines changed: 7 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -7,10 +7,13 @@ const FLAGD_NAME = 'flagd Provider';
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// register the flagd provider before the tests.
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console.log('Setting flagd provider...');
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OpenFeature.setProvider(
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'e2e',
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new FlagdProvider({ cache: 'disabled', resolverType: 'in-process', host: 'localhost', port: 9090 }),
1112
);
12-
assert(
13-
OpenFeature.providerMetadata.name === FLAGD_NAME,
14-
new Error(`Expected ${FLAGD_NAME} provider to be configured, instead got: ${OpenFeature.providerMetadata.name}`),
15-
);
13+
OpenFeature.setProvider('unstable', new FlagdProvider({ resolverType: 'in-process', host: 'localhost', port: 9091 }));
14+
// TODO: update with correct assertions once we have ability to get providerMetadata for any provider
15+
// assert(
16+
// OpenFeature.providerMetadata.name === FLAGD_NAME,
17+
// new Error(`Expected ${FLAGD_NAME} provider to be configured, instead got: ${OpenFeature.providerMetadata.name}`),
18+
// );
1619
console.log('flagd provider configured!');

‎libs/providers/flagd/src/e2e/setup-rpc-provider.ts‎

Lines changed: 7 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -6,9 +6,11 @@ const FLAGD_NAME = 'flagd Provider';
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77
// register the flagd provider before the tests.
88
console.log('Setting flagd provider...');
9-
OpenFeature.setProvider(new FlagdProvider({ cache: 'disabled' }));
10-
assert(
11-
OpenFeature.providerMetadata.name === FLAGD_NAME,
12-
new Error(`Expected ${FLAGD_NAME} provider to be configured, instead got: ${OpenFeature.providerMetadata.name}`),
13-
);
9+
OpenFeature.setProvider('e2e', new FlagdProvider({ cache: 'disabled' }));
10+
OpenFeature.setProvider('unstable', new FlagdProvider({ cache: 'disabled', port: 8014 }));
11+
// TODO: update with correct assertions once we have ability to get providerMetadata for any provider
12+
// assert(
13+
// OpenFeature.providerMetadata.name === FLAGD_NAME,
14+
// new Error(`Expected ${FLAGD_NAME} provider to be configured, instead got: ${OpenFeature.providerMetadata.name}`),
15+
// );
1416
console.log('flagd provider configured!');

‎libs/providers/flagd/src/e2e/step-definitions/evaluation.spec.ts‎

Lines changed: 1 addition & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -14,7 +14,7 @@ import { defineFeature, loadFeature } from 'jest-cucumber';
1414
const feature = loadFeature('features/evaluation.feature');
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1616
// get a client (flagd provider registered in setup)
17-
const client = OpenFeature.getClient();
17+
const client = OpenFeature.getClient('e2e');
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1919
const givenAnOpenfeatureClientIsRegistered = (
2020
given: (stepMatcher: string, stepDefinitionCallback: () => void) => void,
@@ -29,10 +29,6 @@ defineFeature(feature, (test) => {
2929
});
3030
});
3131

32-
afterAll(async () => {
33-
await OpenFeature.close();
34-
});
35-
3632
test('Resolves boolean value', ({ given, when, then }) => {
3733
let value: boolean;
3834
let flagKey: string;

‎libs/providers/flagd/src/e2e/step-definitions/flagd-json-evaluator.spec.ts‎

Lines changed: 1 addition & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@ import { StepsDefinitionCallbackFunction } from 'jest-cucumber/dist/src/feature-
66
const feature = loadFeature('features/flagd-json-evaluator.feature');
77

88
// get a client (flagd provider registered in setup)
9-
const client = OpenFeature.getClient();
9+
const client = OpenFeature.getClient('e2e');
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1111
const aFlagProviderIsSet = (given: (stepMatcher: string, stepDefinitionCallback: () => void) => void) => {
1212
given('a flagd provider is set', () => undefined);
@@ -39,10 +39,6 @@ defineFeature(feature, (test) => {
3939
});
4040
});
4141

42-
afterAll(async () => {
43-
await OpenFeature.close();
44-
});
45-
4642
test('Evaluator reuse', evaluateStringFlagWithContext);
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4844
test('Fractional operator', ({ given, when, and, then }) => {

‎libs/providers/flagd/src/e2e/step-definitions/flagd-reconnect.unstable.spec.ts‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,45 @@
1+
import { OpenFeature, ProviderEvents } from '@openfeature/server-sdk';
2+
import { defineFeature, loadFeature } from 'jest-cucumber';
3+
4+
jest.setTimeout(30000);
5+
6+
// load the feature file.
7+
const feature = loadFeature('features/flagd-reconnect.feature');
8+
9+
// get a client (flagd provider registered in setup)
10+
const client = OpenFeature.getClient('unstable');
11+
12+
defineFeature(feature, (test) => {
13+
let readyRunCount = 0;
14+
let errorRunCount = 0;
15+
16+
beforeAll((done) => {
17+
client.addHandler(ProviderEvents.Ready, async () => {
18+
readyRunCount++;
19+
done();
20+
});
21+
});
22+
23+
test('Provider reconnection', ({ given, when, then, and }) => {
24+
given('a flagd provider is set', () => {
25+
// handled in beforeAll
26+
});
27+
when('a PROVIDER_READY handler and a PROVIDER_ERROR handler are added', () => {
28+
client.addHandler(ProviderEvents.Error, () => {
29+
errorRunCount++;
30+
});
31+
});
32+
then('the PROVIDER_READY handler must run when the provider connects', async () => {
33+
// should already be at 1 from `beforeAll`
34+
expect(readyRunCount).toEqual(1);
35+
});
36+
and("the PROVIDER_ERROR handler must run when the provider's connection is lost", async () => {
37+
await new Promise((resolve) => setTimeout(resolve, 10000));
38+
expect(errorRunCount).toBeGreaterThan(0);
39+
});
40+
and('when the connection is reestablished the PROVIDER_READY handler must run again', async () => {
41+
await new Promise((resolve) => setTimeout(resolve, 10000));
42+
expect(readyRunCount).toBeGreaterThan(1);
43+
});
44+
});
45+
});

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