mirror of
https://github.com/kremalicious/metamask-extension.git
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101 lines
4.0 KiB
Markdown
101 lines
4.0 KiB
Markdown
# Development
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Several files which are needed for developing on MetaMask.
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Usually each file or directory contains information about its scope / usage.
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## Segment
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### Debugging with the Mock Segment API
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To start the [Mock Segment API](./mock-segment.js):
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- Add/replace the `SEGMENT_HOST` and `SEGMENT_WRITE_KEY` variables in `.metamaskrc`
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```
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SEGMENT_HOST='http://localhost:9090'
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SEGMENT_WRITE_KEY='FAKE'
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```
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- Build the project to the `./dist/` folder with `yarn dist`
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- Run the Mock Segment API from the command line
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```
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node development/mock-segment.js
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```
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Events triggered whilst using the extension will be logged to the console of the Mock Segment API.
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More information on the API and its usage can be found [here](./mock-segment.js#L28).
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### Debugging in Segment
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To debug in a production Segment environment:
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- Create a free account on [Segment](https://segment.com/)
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- Create a New Workspace
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- Add a Source (Node.js)
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- Copy the `Write Key` from the API Keys section under Settings
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- Add/replace the `SEGMENT_HOST` and `SEGMENT_WRITE_KEY` variables in `.metamaskrc`
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```
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SEGMENT_HOST='https://api.segment.io'
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SEGMENT_WRITE_KEY='COPIED_WRITE_KEY'
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```
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- Build the project to the `./dist/` folder with `yarn dist`
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Events triggered whilst using the extension will be displayed in Segment's Debugger.
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### Debugging Segment requests in MetaMask
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To opt in to MetaMetrics;
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- Unlock the extension
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- Open the Account menu
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- Click the `Settings` menu item
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- Click the `Security & Privacy` menu item
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- Toggle the `Participate in MetaMetrics` menu option to the `ON` position
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You can inspect the requests in the `Network` tab of your browser's Developer Tools (background.html)
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by filtering for `POST` requests to `/v1/batch`. The full url will be `http://localhost:9090/v1/batch`
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or `https://api.segment.io/v1/batch` respectively.
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## Sentry
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### Debugging in Sentry
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To debug in a production Sentry environment:
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- If you have not already got a Sentry account, you can create a free account on [Sentry](https://sentry.io/)
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- Create a New Sentry Organization
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- If you already have an existing Sentry account and workspace, open the sidebar drop down menu, then click `Switch organization` followed by `Create a new organization`
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- Create a New Project
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- Copy the `Public Key` and `Project ID` from the Client Keys section under your projects Settings
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- Select `Settings` in the sidebar menu, then select `Projects` in the secondary menu. Click your project then select `Client Keys (DSN)` from the secondary menu. Click the `Configure` button on the `Client Keys` page and copy your `Project Id` and `Public Key`
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- Add/replace the `SENTRY_DSN` and `SENTRY_DSN_DEV` variables in `.metamaskrc`
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```
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SENTRY_DSN_DEV=https://{SENTRY_PUBLIC_KEY}@sentry.io/{SENTRY_PROJECT_ID}
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SENTRY_DSN=https://{SENTRY_PUBLIC_KEY}@sentry.io/{SENTRY_PROJECT_ID}
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```
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- Build the project to the `./dist/` folder with `yarn dist`
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Errors reported whilst using the extension will be displayed in Sentry's `Issues` page.
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## Source Maps
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### Debugging production builds using Source Maps
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To unbundle the extensions compiled and minified JavaScript using Source Maps:
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- Open Chrome DevTools to inspect the `background.html` or `home.html` view
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- Click on the `Sources` tab in Chrome DevTools
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- In the Sources tab, click on the `Page` panel
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- Expand the file directory in the Page panel until you see the source files you're after
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- Select a source file in the Page panel
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```
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chrome-extension://{EXTENSION_ID}/common-0.js
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```
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- Double click the source file to open it in the Workspace
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- Right click in the body of the source file and select `Add source map...`
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- Enter the path to the corresponding source map file, and Click `Add`
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```
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file:///{LOCAL_FILE_SYSTEM}/metamask-extension/dist/sourcemaps/common-0.js.map
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```
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- Repeat the steps above as necessary adding all the relevant source map files
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- Your source maps should now be added to the DevTools Console, and you should be able to see your original source files when you debug your code
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