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Here are some key observations to aid the review process:
🏅 Score: 72
🧪 No relevant tests
🔒 No security concerns identified
⚡ Recommended focus areas for review
Possible Bug The mergeConfig method might cause a stack overflow if there are circular references in the configuration objects. This method uses recursion without handling circular references, which can lead to infinite recursion.
Performance Issue The trackInternal method is called within a loop in the RetryQueue class, which could lead to performance issues if the queue is large. This method sends network requests and should be optimized for batch processing.
Code Smell The id method in UsermavenClient class has a boolean parameter doNotSendEvent which leads to multiple responsibilities within the method. Consider splitting this method into two separate methods to handle identification and event sending distinctly.
Code feedback:
relevant file
packages/javascript-sdk/src/core/client.ts
suggestion
Consider adding error handling for JSON parsing in the mergeConfig method to catch and handle potential exceptions that can arise from malformed input. [important]
To improve the performance of the trackInternal method, consider implementing a batching mechanism that aggregates events and sends them in bulk rather than one at a time. This can reduce the number of network requests and improve the efficiency of data transmission. [important]
Refactor the id method by creating a separate method for sending the identification event. This separation of concerns can make the code cleaner and easier to maintain. [important]
Ensure all used functions are properly imported or defined to avoid runtime errors
Ensure that the isElementNode function is imported or defined in the current or a globally accessible scope, as it is used to check if el is an element node.
+import { isElementNode } from 'path/to/module';+...
if (!el || !isElementNode(el)) {
return false;
}
Suggestion importance[1-10]: 9
Why: The suggestion addresses a potential bug by ensuring that the isElementNode function is imported or defined, which is crucial for preventing runtime errors when the function is called.
9
Enhance robustness by ensuring that objects and properties exist before accessing them
Consider checking for the existence of window and document before accessing window.document.createElement to prevent potential reference errors in non-browser environments.
Why: The suggestion improves the robustness of the code by ensuring that window and document are defined before accessing their properties, which is important for preventing reference errors in non-browser environments.
8
Add checks for required HTML attributes to prevent runtime errors
Consider checking for the presence of required attributes like data-key and data-tracking-host in the HTMLScriptElement before using them to prevent runtime errors.
-key: script.getAttribute('data-key') || undefined,-trackingHost: script.getAttribute('data-tracking-host') || 'https://events.usermaven.com',+key: script.getAttribute('data-key') || throw new Error('data-key attribute is required'),+trackingHost: script.getAttribute('data-tracking-host') || throw new Error('data-tracking-host attribute is required'),
Suggestion importance[1-10]: 3
Why: The suggestion to check for required HTML attributes before using them is reasonable, but the proposed syntax is incorrect. The use of throw in a logical expression is not valid, reducing the effectiveness of the suggestion.
3
Validate the API key in the configuration to ensure it is not null or empty
Ensure that the key attribute in the config object is validated for non-null and non-empty values to prevent runtime errors when the API key is required for operations.
const cleanConfig = JSON.parse(JSON.stringify(config));
+if (!cleanConfig.key) {+ throw new Error('API key cannot be null or empty.');+}
const camelCaseConfig = convertKeysToCamelCase(cleanConfig);
const mergedConfig: Config = { ...defaultConfig, ...camelCaseConfig } as Config;
Suggestion importance[1-10]: 2
Why: The suggestion to validate the API key for null or empty values is redundant because the existing code already throws an error if the key is not present. The improvement is minimal and doesn't significantly enhance the existing validation logic.
2
Enhancement
Implement error handling for JSON parsing to manage exceptions from malformed configurations
Add error handling for JSON parsing to catch and manage potential exceptions from malformed input configurations.
Why: Adding error handling for JSON parsing is a valuable enhancement that can prevent runtime errors due to malformed configurations. This improves the robustness of the code by providing clear error messages when parsing fails.
7
Use native JavaScript methods for better performance and standard practices
Use Array.isArray(obj) directly instead of a custom function to check if obj is an array, as it is more standard and performant.
function (obj: any): obj is any[] {
- return toString.call(obj) === '[object Array]'+ return Array.isArray(obj);
}
Suggestion importance[1-10]: 7
Why: The suggestion to use Array.isArray(obj) instead of a custom function aligns with standard practices and improves performance, making it a beneficial enhancement.
7
Replace JSON stringify/parse with a deep cloning function to handle complex object types more reliably
Use a more robust method for deep cloning the config object to avoid potential issues with JSON stringify/parse, such as losing methods or handling of special types like Date or undefined.
Why: Using a more robust deep cloning method can prevent issues related to JSON stringify/parse limitations, such as handling special types like Date or undefined. This suggestion improves the reliability of the code when dealing with complex objects.
6
Improve the alt attribute for the Vite logo to enhance accessibility
Consider using a more descriptive alt attribute for the Vite logo to enhance accessibility.
Why: The suggestion to use a more descriptive alt attribute for the Vite logo is valid and enhances accessibility. It provides a clearer description of the image, which can be beneficial for users relying on screen readers.
5
Possible issue
Verify and test font file paths to ensure proper loading and rendering
Ensure that the font files are correctly loaded by verifying the paths and testing across different browsers to avoid issues with font rendering.
Why: The suggestion to verify and test font file paths is valid but not actionable as it only advises on testing without providing specific code changes. It is a general recommendation rather than a direct code improvement.
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User description
This PR represents a significant refactoring and enhancement of the Usermaven JavaScript SDK. Key changes include:
Improved Architecture:
Enhanced Features:
Performance Optimizations:
Privacy and Security:
Developer Experience:
Testing and Quality:
Build System:
PR Type
Enhancement, Tests
Description
UsermavenClientclass with enhanced features including event tracking, user identification, and group identification.AutoCaptureclass for automatic event capturing andFormTrackingclass for tracking form submissions.RetryQueueclass for event retry logic andRageClickclass for detecting rage clicks.XhrTransport,HttpsTransport,FetchTransport,BeaconTransport) for different transport mechanisms.Changes walkthrough 📝
20 files
client.ts
Implement core client functionality with enhanced featurespackages/javascript-sdk/src/core/client.ts
UsermavenClientclass with enhanced features.identification.
autocapture.ts
Add AutoCapture class for automatic event trackingpackages/javascript-sdk/src/tracking/autocapture.ts
AutoCaptureclass for automatic event capturing.form-tracking.ts
Implement FormTracking class for form submission trackingpackages/javascript-sdk/src/tracking/form-tracking.ts
FormTrackingclass for tracking form submissions.FormTrackinginstance.index.ts
Export UsermavenClient and setup initialization functionspackages/javascript-sdk/src/index.ts
UsermavenClientand related types.scroll-depth.ts
Refactor ScrollDepth class for improved scroll trackingpackages/javascript-sdk/src/extensions/scroll-depth.ts
ScrollDepthclass for tracking scroll depth.common.ts
Add utility functions for common operationspackages/javascript-sdk/src/utils/common.ts
useUsermaven.ts
Update useUsermaven hook for React integrationpackages/react/src/useUsermaven.ts
useUsermavenhook for React integration.cookie.ts
Implement CookieManager class for cookie operationspackages/javascript-sdk/src/utils/cookie.ts
CookieManagerclass for cookie operations.queue.ts
Implement RetryQueue class for event retry logicpackages/javascript-sdk/src/utils/queue.ts
RetryQueueclass for event retry logic.autocapture-utils.ts
Add utility functions for autocapture operationspackages/javascript-sdk/src/utils/autocapture-utils.ts
usePageView.ts
Implement usePageView hook for page view trackingpackages/react/src/usePageView.ts
usePageViewhook for page view tracking.useUsermavenhook.usePageView.ts
Implement usePageView hook for Next.js page view trackingpackages/nextjs/src/usePageView.ts
usePageViewhook for Next.js page view tracking.useUsermavenhook.useUsermaven.ts
Update useUsermaven hook for Next.js integrationpackages/nextjs/src/useUsermaven.ts
useUsermavenhook for Next.js integration.rage-click.ts
Implement RageClick class for detecting rage clickspackages/javascript-sdk/src/extensions/rage-click.ts
RageClickclass for detecting rage clicks.UsermavenClient.helpers.ts
Add helper functions for common taskspackages/javascript-sdk/src/utils/helpers.ts
xhr.ts
Implement XhrTransport class for XHR-based transportpackages/javascript-sdk/src/transport/xhr.ts
XhrTransportclass for XHR-based transport.UsermavenClient.https.ts
Implement HttpsTransport class for HTTPS transportpackages/javascript-sdk/src/transport/https.ts
HttpsTransportclass for HTTPS transport.UsermavenClient.config.ts
Define configuration interface for UsermavenClientpackages/javascript-sdk/src/core/config.ts
UsermavenClient.fetch.ts
Implement FetchTransport class for Fetch API transportpackages/javascript-sdk/src/transport/fetch.ts
FetchTransportclass for Fetch API transport.UsermavenClient.beacon.ts
Implement BeaconTransport class for Beacon API transportpackages/javascript-sdk/src/transport/beacon.ts
BeaconTransportclass for Beacon API transport.UsermavenClient.3 files
event-tracking.test.ts
Add unit tests for event tracking in UsermavenClientpackages/javascript-sdk/test/unit/core/event-tracking.test.ts
UsermavenClientevent tracking.autocapture.
client.test.ts
Add unit tests for UsermavenClient methodspackages/javascript-sdk/test/unit/core/client.test.ts
UsermavenClientmethods.server-side-client.test.ts
Add unit tests for server-side UsermavenClientpackages/javascript-sdk/test/unit/core/server-side-client.test.ts
UsermavenClient.2 files
page.tsx
Add example Next.js page componentexamples/next-app/src/app/page.tsx
test.ts
Add example script for testing Usermaven SDKpackages/javascript-sdk/examples/test.ts
53 files
pageviews.ts
...packages/javascript-sdk/src/tracking/pageviews.ts
...
vite.config.ts
...packages/javascript-sdk/vite.config.ts
...
local-storage.ts
...packages/javascript-sdk/src/persistence/local-storage.ts
...
App.tsx
...examples/react-app/src/App.tsx
...
types.ts
...packages/javascript-sdk/src/core/types.ts
...
UsermavenProvider.tsx
...packages/react/src/UsermavenProvider.tsx
...
logger.ts
...packages/javascript-sdk/src/utils/logger.ts
...
layout.tsx
...examples/next-app/src/app/layout.tsx
...
main.tsx
...examples/react-app/src/main.tsx
...
LayoutWrapper.tsx
...examples/next-app/src/component/client/LayoutWrapper.tsx
...
setup.ts
...packages/javascript-sdk/test/setup.ts
...
UsermavenProvider.tsx
...packages/nextjs/src/UsermavenProvider.tsx
...
vitest.config.ts
...packages/javascript-sdk/vitest.config.ts
...
middlewareEnv.ts
...packages/nextjs/src/middlewareEnv.ts
...
memory.ts
...packages/javascript-sdk/src/persistence/memory.ts
...
vitest.d.ts
...packages/javascript-sdk/test/vitest.d.ts
...
vite.config.ts
...examples/react-app/vite.config.ts
...
global.d.ts
...packages/javascript-sdk/src/global.d.ts
...
transport.ts
...packages/javascript-sdk/src/transport/transport.ts
...
vite-env.d.ts
...examples/react-app/src/vite-env.d.ts
...
form-tracking.html
...packages/javascript-sdk/examples/form-tracking.html
...
index.html
...packages/javascript-sdk/examples/index.html
...
index.html
...examples/react-app/index.html
...
mergeFiles.js
...mergeFiles.js
...
mockServer.js
...packages/javascript-sdk/server/mockServer.js
...
copyContents.js
...scripts/copyContents.js
...
eslint.config.js
...examples/react-app/eslint.config.js
...
page.module.css
...examples/next-app/src/app/page.module.css
...
index.css
...examples/react-app/src/index.css
...
App.css
...examples/react-app/src/App.css
...
globals.css
...examples/next-app/src/app/globals.css
...
pnpm-lock.yaml
...pnpm-lock.yaml
...
README.md
...packages/javascript-sdk/README.md
...
README.md
...examples/react-app/README.md
...
package.json
...packages/javascript-sdk/package.json
...
README.md
...README.md
...
package.json
...examples/react-app/package.json
...
tsconfig.json
...packages/javascript-sdk/tsconfig.json
...
README.md
...examples/next-app/README.md
...
package.json
...package.json
...
README.md
...packages/nextjs/README.md
...
tsconfig.json
...examples/next-app/tsconfig.json
...
tsconfig.app.json
...examples/react-app/tsconfig.app.json
...
package.json
...examples/next-app/package.json
...
tsconfig.node.json
...examples/react-app/tsconfig.node.json
...
README.md
...packages/react/README.md
...
.eslintrc.json
...packages/javascript-sdk/.eslintrc.json
...
package.json
...packages/react/package.json
...
package.json
...packages/nextjs/package.json
...
.prettierrc
...packages/javascript-sdk/.prettierrc
...
tsconfig.json
...examples/react-app/tsconfig.json
...
next.config.mjs
...examples/next-app/next.config.mjs
...
pnpm-workspace.yaml
...pnpm-workspace.yaml
...