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posthog-node - npm Package Compare versions

Comparing version 2.4.0 to 2.5.0

6

CHANGELOG.md

@@ -0,1 +1,5 @@

# 2.5.0 - 2023-02-15
1. Removes shared client from `posthog-node`, getting rid of some race condition bugs when capturing events.
2. Sets minimum version of node.js to 15
# 2.4.0 - 2023-02-02

@@ -5,3 +9,3 @@

# 2.3.0 - 2022-1-26
# 2.3.0 - 2023-1-26

@@ -8,0 +12,0 @@ 1. uses v3 decide endpoint

@@ -21,2 +21,16 @@ /// <reference types="node" />

};
declare enum PostHogPersistedProperty {
AnonymousId = "anonymous_id",
DistinctId = "distinct_id",
Props = "props",
FeatureFlags = "feature_flags",
FeatureFlagPayloads = "feature_flag_payloads",
OverrideFeatureFlags = "override_feature_flags",
Queue = "queue",
OptedOut = "opted_out",
SessionId = "session_id",
SessionLastTimestamp = "session_timestamp",
PersonProperties = "person_properties",
GroupProperties = "group_properties"
}
declare type PostHogFetchOptions = {

@@ -32,2 +46,5 @@ method: 'GET' | 'POST' | 'PUT' | 'PATCH';

};
declare type PosthogCaptureOptions = {
timestamp?: Date;
};
declare type PostHogFetchResponse = {

@@ -38,2 +55,5 @@ status: number;

};
declare type PostHogEventProperties = {
[key: string]: any;
};
declare type PostHogDecideResponse = {

@@ -66,2 +86,81 @@ config: {

interface RetriableOptions {
retryCount?: number;
retryDelay?: number;
retryCheck?: (err: any) => true;
}
declare class SimpleEventEmitter {
events: {
[key: string]: ((...args: any[]) => void)[];
};
constructor();
on(event: string, listener: (...args: any[]) => void): () => void;
emit(event: string, payload: any): void;
}
declare abstract class PostHogCoreStateless {
private apiKey;
host: string;
private flushAt;
private flushInterval;
private requestTimeout;
private captureMode;
private removeDebugCallback?;
private _optoutOverride;
protected _events: SimpleEventEmitter;
protected _flushTimer?: any;
protected _retryOptions: RetriableOptions;
abstract fetch(url: string, options: PostHogFetchOptions): Promise<PostHogFetchResponse>;
abstract getLibraryId(): string;
abstract getLibraryVersion(): string;
abstract getCustomUserAgent(): string | void;
abstract getPersistedProperty<T>(key: PostHogPersistedProperty): T | undefined;
abstract setPersistedProperty<T>(key: PostHogPersistedProperty, value: T | null): void;
constructor(apiKey: string, options?: PosthogCoreOptions);
protected getCommonEventProperties(): any;
get optedOut(): boolean;
optIn(): void;
optOut(): void;
on(event: string, cb: (...args: any[]) => void): () => void;
debug(enabled?: boolean): void;
private buildPayload;
/***
*** TRACKING
***/
protected identifyStateless(distinctId: string, properties?: PostHogEventProperties, options?: PosthogCaptureOptions): this;
protected captureStateless(distinctId: string, event: string, properties?: {
[key: string]: any;
}, options?: PosthogCaptureOptions): this;
protected aliasStateless(alias: string, distinctId: string, properties?: {
[key: string]: any;
}): this;
/***
*** GROUPS
***/
protected groupIdentifyStateless(groupType: string, groupKey: string | number, groupProperties?: PostHogEventProperties, options?: PosthogCaptureOptions, distinctId?: string, eventProperties?: PostHogEventProperties): this;
/***
*** FEATURE FLAGS
***/
protected getDecide(distinctId: string, groups?: Record<string, string | number>, personProperties?: Record<string, string>, groupProperties?: Record<string, Record<string, string>>, extraPayload?: Record<string, any>): Promise<PostHogDecideResponse | undefined>;
protected getFeatureFlagStateless(key: string, distinctId: string, groups?: Record<string, string>, personProperties?: Record<string, string>, groupProperties?: Record<string, Record<string, string>>): Promise<boolean | string | undefined>;
protected getFeatureFlagPayloadStateless(key: string, distinctId: string, groups?: Record<string, string>, personProperties?: Record<string, string>, groupProperties?: Record<string, Record<string, string>>): Promise<JsonType | undefined>;
protected getFeatureFlagPayloadsStateless(distinctId: string, groups?: Record<string, string>, personProperties?: Record<string, string>, groupProperties?: Record<string, Record<string, string>>): Promise<PostHogDecideResponse['featureFlagPayloads'] | undefined>;
protected _parsePayload(response: any): any;
protected getFeatureFlagsStateless(distinctId: string, groups?: Record<string, string | number>, personProperties?: Record<string, string>, groupProperties?: Record<string, Record<string, string>>): Promise<PostHogDecideResponse['featureFlags'] | undefined>;
protected getFeatureFlagsAndPayloadsStateless(distinctId: string, groups?: Record<string, string | number>, personProperties?: Record<string, string>, groupProperties?: Record<string, Record<string, string>>): Promise<{
flags: PostHogDecideResponse['featureFlags'] | undefined;
payloads: PostHogDecideResponse['featureFlagPayloads'] | undefined;
}>;
/***
*** QUEUEING AND FLUSHING
***/
protected enqueue(type: string, _message: any, options?: PosthogCaptureOptions): void;
flushAsync(): Promise<any>;
flush(callback?: (err?: any, data?: any) => void): void;
private fetchWithRetry;
shutdownAsync(): Promise<void>;
shutdown(): void;
}
interface IdentifyMessageV1 {

@@ -210,9 +309,15 @@ distinctId: string;

};
declare class PostHog implements PostHogNodeV1 {
private _sharedClient;
declare class PostHog extends PostHogCoreStateless implements PostHogNodeV1 {
private _memoryStorage;
private featureFlagsPoller?;
private maxCacheSize;
private options;
distinctIdHasSentFlagCalls: Record<string, string[]>;
constructor(apiKey: string, options?: PostHogOptions);
private reInit;
getPersistedProperty(key: PostHogPersistedProperty): any | undefined;
setPersistedProperty(key: PostHogPersistedProperty, value: any | null): void;
fetch(url: string, options: PostHogFetchOptions): Promise<PostHogFetchResponse>;
getLibraryId(): string;
getLibraryVersion(): string;
getCustomUserAgent(): string;
enable(): void;

@@ -261,8 +366,6 @@ disable(): void;

reloadFeatureFlags(): Promise<void>;
flush(): void;
shutdown(): void;
shutdownAsync(): Promise<void>;
debug(enabled?: boolean): void;
}
export { PostHog, PostHogOptions };

77

lib/posthog-core/src/index.d.ts

@@ -6,3 +6,3 @@ import { PostHogFetchOptions, PostHogFetchResponse, PostHogAutocaptureElement, PostHogDecideResponse, PosthogCoreOptions, PostHogEventProperties, PostHogPersistedProperty, PosthogCaptureOptions, JsonType } from './types';

import { SimpleEventEmitter } from './eventemitter';
export declare abstract class PostHogCore {
export declare abstract class PostHogCoreStateless {
private apiKey;

@@ -14,10 +14,7 @@ host: string;

private captureMode;
private sendFeatureFlagEvent;
private flagCallReported;
private removeDebugCallback?;
private _optoutOverride;
protected _events: SimpleEventEmitter;
protected _flushTimer?: any;
protected _decideResponsePromise?: Promise<PostHogDecideResponse>;
protected _retryOptions: RetriableOptions;
protected _sessionExpirationTimeSeconds: number;
abstract fetch(url: string, options: PostHogFetchOptions): Promise<PostHogFetchResponse>;

@@ -29,5 +26,53 @@ abstract getLibraryId(): string;

abstract setPersistedProperty<T>(key: PostHogPersistedProperty, value: T | null): void;
private _optoutOverride;
constructor(apiKey: string, options?: PosthogCoreOptions);
protected getCommonEventProperties(): any;
get optedOut(): boolean;
optIn(): void;
optOut(): void;
on(event: string, cb: (...args: any[]) => void): () => void;
debug(enabled?: boolean): void;
private buildPayload;
/***
*** TRACKING
***/
protected identifyStateless(distinctId: string, properties?: PostHogEventProperties, options?: PosthogCaptureOptions): this;
protected captureStateless(distinctId: string, event: string, properties?: {
[key: string]: any;
}, options?: PosthogCaptureOptions): this;
protected aliasStateless(alias: string, distinctId: string, properties?: {
[key: string]: any;
}): this;
/***
*** GROUPS
***/
protected groupIdentifyStateless(groupType: string, groupKey: string | number, groupProperties?: PostHogEventProperties, options?: PosthogCaptureOptions, distinctId?: string, eventProperties?: PostHogEventProperties): this;
/***
*** FEATURE FLAGS
***/
protected getDecide(distinctId: string, groups?: Record<string, string | number>, personProperties?: Record<string, string>, groupProperties?: Record<string, Record<string, string>>, extraPayload?: Record<string, any>): Promise<PostHogDecideResponse | undefined>;
protected getFeatureFlagStateless(key: string, distinctId: string, groups?: Record<string, string>, personProperties?: Record<string, string>, groupProperties?: Record<string, Record<string, string>>): Promise<boolean | string | undefined>;
protected getFeatureFlagPayloadStateless(key: string, distinctId: string, groups?: Record<string, string>, personProperties?: Record<string, string>, groupProperties?: Record<string, Record<string, string>>): Promise<JsonType | undefined>;
protected getFeatureFlagPayloadsStateless(distinctId: string, groups?: Record<string, string>, personProperties?: Record<string, string>, groupProperties?: Record<string, Record<string, string>>): Promise<PostHogDecideResponse['featureFlagPayloads'] | undefined>;
protected _parsePayload(response: any): any;
protected getFeatureFlagsStateless(distinctId: string, groups?: Record<string, string | number>, personProperties?: Record<string, string>, groupProperties?: Record<string, Record<string, string>>): Promise<PostHogDecideResponse['featureFlags'] | undefined>;
protected getFeatureFlagsAndPayloadsStateless(distinctId: string, groups?: Record<string, string | number>, personProperties?: Record<string, string>, groupProperties?: Record<string, Record<string, string>>): Promise<{
flags: PostHogDecideResponse['featureFlags'] | undefined;
payloads: PostHogDecideResponse['featureFlagPayloads'] | undefined;
}>;
/***
*** QUEUEING AND FLUSHING
***/
protected enqueue(type: string, _message: any, options?: PosthogCaptureOptions): void;
flushAsync(): Promise<any>;
flush(callback?: (err?: any, data?: any) => void): void;
private fetchWithRetry;
shutdownAsync(): Promise<void>;
shutdown(): void;
}
export declare abstract class PostHogCore extends PostHogCoreStateless {
private sendFeatureFlagEvent;
private flagCallReported;
protected _decideResponsePromise?: Promise<PostHogDecideResponse | undefined>;
protected _sessionExpirationTimeSeconds: number;
constructor(apiKey: string, options?: PosthogCoreOptions);
protected setupBootstrap(options?: Partial<PosthogCoreOptions>): void;

@@ -38,9 +83,6 @@ private get props();

private _props;
get optedOut(): boolean;
optIn(): void;
optOut(): void;
on(event: string, cb: (...args: any[]) => void): () => void;
reset(propertiesToKeep?: PostHogPersistedProperty[]): void;
debug(enabled?: boolean): void;
private buildPayload;
protected getCommonEventProperties(): any;
private enrichProperties;
getSessionId(): string | undefined;

@@ -90,3 +132,2 @@ resetSessionId(): void;

getFeatureFlagPayloads(): PostHogDecideResponse['featureFlagPayloads'] | undefined;
_parsePayload(response: any): any;
getFeatureFlags(): PostHogDecideResponse['featureFlags'] | undefined;

@@ -98,17 +139,9 @@ getFeatureFlagsAndPayloads(): {

isFeatureEnabled(key: string): boolean | undefined;
reloadFeatureFlagsAsync(sendAnonDistinctId?: boolean): Promise<PostHogDecideResponse['featureFlags']>;
reloadFeatureFlags(cb?: (err?: Error, flags?: PostHogDecideResponse['featureFlags']) => void): void;
reloadFeatureFlagsAsync(sendAnonDistinctId?: boolean): Promise<PostHogDecideResponse['featureFlags'] | undefined>;
onFeatureFlags(cb: (flags: PostHogDecideResponse['featureFlags']) => void): () => void;
onFeatureFlag(key: string, cb: (value: string | boolean) => void): () => void;
overrideFeatureFlag(flags: PostHogDecideResponse['featureFlags'] | null): void;
/***
*** QUEUEING AND FLUSHING
***/
private enqueue;
flushAsync(): Promise<any>;
flush(callback?: (err?: any, data?: any) => void): void;
private fetchWithRetry;
shutdownAsync(): Promise<void>;
shutdown(): void;
}
export * from './types';
export { LZString };

@@ -1,2 +0,2 @@

import { JsonType, PosthogCoreOptions, PostHogFetchOptions, PostHogFetchResponse, PosthogFlagsAndPayloadsResponse } from '../../posthog-core/src';
import { JsonType, PosthogCoreOptions, PostHogCoreStateless, PostHogFetchOptions, PostHogFetchResponse, PosthogFlagsAndPayloadsResponse, PostHogPersistedProperty } from '../../posthog-core/src';
import { EventMessageV1, GroupIdentifyMessage, IdentifyMessageV1, PostHogNodeV1 } from './types';

@@ -11,9 +11,15 @@ export declare type PostHogOptions = PosthogCoreOptions & {

};
export declare class PostHog implements PostHogNodeV1 {
private _sharedClient;
export declare class PostHog extends PostHogCoreStateless implements PostHogNodeV1 {
private _memoryStorage;
private featureFlagsPoller?;
private maxCacheSize;
private options;
distinctIdHasSentFlagCalls: Record<string, string[]>;
constructor(apiKey: string, options?: PostHogOptions);
private reInit;
getPersistedProperty(key: PostHogPersistedProperty): any | undefined;
setPersistedProperty(key: PostHogPersistedProperty, value: any | null): void;
fetch(url: string, options: PostHogFetchOptions): Promise<PostHogFetchResponse>;
getLibraryId(): string;
getLibraryVersion(): string;
getCustomUserAgent(): string;
enable(): void;

@@ -62,6 +68,4 @@ disable(): void;

reloadFeatureFlags(): Promise<void>;
flush(): void;
shutdown(): void;
shutdownAsync(): Promise<void>;
debug(enabled?: boolean): void;
}
{
"name": "posthog-node",
"version": "2.4.0",
"version": "2.5.0",
"description": "PostHog Node.js integration",

@@ -10,3 +10,3 @@ "repository": "PostHog/posthog-node",

"engines": {
"node": ">=14.17.0"
"node": ">=15.0.0"
},

@@ -13,0 +13,0 @@ "license": "MIT",

@@ -5,4 +5,4 @@ import { version } from '../package.json'

JsonType,
PostHogCore,
PosthogCoreOptions,
PostHogCoreStateless,
PostHogFetchOptions,

@@ -33,11 +33,33 @@ PostHogFetchResponse,

class PostHogClient extends PostHogCore {
// The actual exported Nodejs API.
export class PostHog extends PostHogCoreStateless implements PostHogNodeV1 {
private _memoryStorage = new PostHogMemoryStorage()
constructor(apiKey: string, private options: PostHogOptions = {}) {
private featureFlagsPoller?: FeatureFlagsPoller
private maxCacheSize: number
private options: PostHogOptions
distinctIdHasSentFlagCalls: Record<string, string[]>
constructor(apiKey: string, options: PostHogOptions = {}) {
options.captureMode = options?.captureMode || 'json'
options.preloadFeatureFlags = false // Don't preload as this makes no sense without a distinctId
options.sendFeatureFlagEvent = false // Let `posthog-node` handle this on its own, since we're dealing with multiple distinctIDs
super(apiKey, options)
super(apiKey, options)
this.options = options
if (options.personalApiKey) {
this.featureFlagsPoller = new FeatureFlagsPoller({
pollingInterval:
typeof options.featureFlagsPollingInterval === 'number'
? options.featureFlagsPollingInterval
: THIRTY_SECONDS,
personalApiKey: options.personalApiKey,
projectApiKey: apiKey,
timeout: options.requestTimeout ?? 10000, // 10 seconds
host: this.host,
fetch: options.fetch,
})
}
this.distinctIdHasSentFlagCalls = {}
this.maxCacheSize = options.maxCacheSize || MAX_CACHE_SIZE
}

@@ -53,7 +75,2 @@

getSessionId(): string | undefined {
// Sessions don't make sense for Node
return undefined
}
fetch(url: string, options: PostHogFetchOptions): Promise<PostHogFetchResponse> {

@@ -72,61 +89,32 @@ return this.options.fetch ? this.options.fetch(url, options) : fetch(url, options)

}
}
// The actual exported Nodejs API.
export class PostHog implements PostHogNodeV1 {
private _sharedClient: PostHogClient
private featureFlagsPoller?: FeatureFlagsPoller
private maxCacheSize: number
distinctIdHasSentFlagCalls: Record<string, string[]>
constructor(apiKey: string, options: PostHogOptions = {}) {
this._sharedClient = new PostHogClient(apiKey, options)
if (options.personalApiKey) {
this.featureFlagsPoller = new FeatureFlagsPoller({
pollingInterval:
typeof options.featureFlagsPollingInterval === 'number'
? options.featureFlagsPollingInterval
: THIRTY_SECONDS,
personalApiKey: options.personalApiKey,
projectApiKey: apiKey,
timeout: options.requestTimeout ?? 10000, // 10 seconds
host: this._sharedClient.host,
fetch: options.fetch,
})
}
this.distinctIdHasSentFlagCalls = {}
this.maxCacheSize = options.maxCacheSize || MAX_CACHE_SIZE
}
private reInit(distinctId: string): void {
// Certain properties we want to persist. Queue is persisted always by default.
this._sharedClient.reset([PostHogPersistedProperty.OptedOut])
this._sharedClient.setPersistedProperty(PostHogPersistedProperty.DistinctId, distinctId)
}
enable(): void {
return this._sharedClient.optIn()
return super.optIn()
}
disable(): void {
return this._sharedClient.optOut()
return super.optOut()
}
capture({ distinctId, event, properties, groups, sendFeatureFlags, timestamp }: EventMessageV1): void {
this.reInit(distinctId)
if (groups) {
this._sharedClient.groups(groups)
const _capture = (props: EventMessageV1['properties']): void => {
super.captureStateless(distinctId, event, props, { timestamp })
}
const _capture = (): void => {
this._sharedClient.capture(event, properties, { timestamp })
}
if (sendFeatureFlags) {
this._sharedClient.reloadFeatureFlagsAsync(false).finally(() => {
_capture()
super.getFeatureFlagsStateless(distinctId, groups).then((flags) => {
const featureVariantProperties: Record<string, string | boolean> = {}
if (flags) {
for (const [feature, variant] of Object.entries(flags)) {
featureVariantProperties[`$feature/${feature}`] = variant
}
}
const flagProperties = {
$active_feature_flags: flags ? Object.keys(flags) : undefined,
...featureVariantProperties,
}
_capture({ ...properties, $groups: groups, ...flagProperties })
})
} else {
_capture()
_capture({ ...properties, $groups: groups })
}

@@ -136,9 +124,7 @@ }

identify({ distinctId, properties }: IdentifyMessageV1): void {
this.reInit(distinctId)
this._sharedClient.identify(distinctId, properties)
super.identifyStateless(distinctId, properties)
}
alias(data: { distinctId: string; alias: string }): void {
this.reInit(data.distinctId)
this._sharedClient.alias(data.alias)
super.aliasStateless(data.alias, data.distinctId)
}

@@ -179,16 +165,3 @@

if (!flagWasLocallyEvaluated && !onlyEvaluateLocally) {
this.reInit(distinctId)
if (groups != undefined) {
this._sharedClient.groups(groups)
}
if (personProperties) {
this._sharedClient.personProperties(personProperties)
}
if (groupProperties) {
this._sharedClient.groupProperties(groupProperties)
}
await this._sharedClient.reloadFeatureFlagsAsync(false)
response = this._sharedClient.getFeatureFlag(key)
response = await super.getFeatureFlagStateless(key, distinctId, groups, personProperties, groupProperties)
}

@@ -269,16 +242,3 @@

if (!payloadWasLocallyEvaluated && !onlyEvaluateLocally) {
this.reInit(distinctId)
if (groups != undefined) {
this._sharedClient.groups(groups)
}
if (personProperties) {
this._sharedClient.personProperties(personProperties)
}
if (groupProperties) {
this._sharedClient.groupProperties(groupProperties)
}
await this._sharedClient.reloadFeatureFlagsAsync(false)
response = this._sharedClient.getFeatureFlagPayload(key)
response = await super.getFeatureFlagPayloadStateless(key, distinctId, groups, personProperties, groupProperties)
}

@@ -358,16 +318,8 @@

if (fallbackToDecide && !onlyEvaluateLocally) {
this.reInit(distinctId)
if (groups) {
this._sharedClient.groups(groups)
}
if (personProperties) {
this._sharedClient.personProperties(personProperties)
}
if (groupProperties) {
this._sharedClient.groupProperties(groupProperties)
}
await this._sharedClient.reloadFeatureFlagsAsync(false)
const remoteEvaluationResult = this._sharedClient.getFeatureFlagsAndPayloads()
const remoteEvaluationResult = await super.getFeatureFlagsAndPayloadsStateless(
distinctId,
groups,
personProperties,
groupProperties
)
featureFlags = {

@@ -387,4 +339,3 @@ ...featureFlags,

groupIdentify({ groupType, groupKey, properties }: GroupIdentifyMessage): void {
this.reInit(`$${groupType}_${groupKey}`)
this._sharedClient.groupIdentify(groupType, groupKey, properties)
super.groupIdentifyStateless(groupType, groupKey, properties)
}

@@ -396,6 +347,2 @@

flush(): void {
this._sharedClient.flush()
}
shutdown(): void {

@@ -407,8 +354,4 @@ void this.shutdownAsync()

this.featureFlagsPoller?.stopPoller()
return this._sharedClient.shutdownAsync()
return super.shutdownAsync()
}
debug(enabled?: boolean): void {
return this._sharedClient.debug(enabled)
}
}

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