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72 lines
2.2 KiB
Markdown
72 lines
2.2 KiB
Markdown
## Creating Metrics Events
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The `metricsEvent` method is made available to all components via context. This is done in `metamask-extension/ui/app/helpers/higher-order-components/metametrics/metametrics.provider.js`. As such, it can be called in all components by first adding it to the context proptypes:
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```
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static contextTypes = {
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t: PropTypes.func,
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metricsEvent: PropTypes.func,
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}
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```
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and then accessing it on `this.context`.
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Below is an example of a metrics event call:
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```
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this.context.metricsEvent({
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eventOpts: {
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category: 'Navigation',
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action: 'Main Menu',
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name: 'Switched Account',
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},
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})
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```
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### Base Schema
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Every `metricsEvent` call is passed an object that must have an `eventOpts` property. This property is an object that itself must have three properties:
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- category: categorizes events according to the schema we have set up in our matomo.org instance
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- action: usually describes the page on which the event takes place, or sometimes a significant subsections of a page
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- name: a very specific descriptor of the event
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### Implicit properties
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All metrics events send the following data when called:
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- network
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- environmentType
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- activeCurrency
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- accountType
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- numberOfTokens
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- numberOfAccounts
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These are added to the metrics event via the metametrics provider.
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### Custom Variables
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Metrics events can include custom variables. These are included within the `customVariables` property that is a first-level property within first param passed to `metricsEvent`.
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For example:
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```
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this.context.metricsEvent({
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eventOpts: {
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category: 'Settings',
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action: 'Custom RPC',
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name: 'Error',
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},
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customVariables: {
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networkId: newRpc,
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chainId,
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},
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})
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```
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Custom variables can have custom property names and values can be strings or numbers.
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**To include a custom variable, there are a set of necessary steps you must take.**
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1. First you must declare a constant equal to the desired name of the custom variable property in `metamask-extension/ui/app/helpers/utils/metametrics.util.js` under `//Custom Variable Declarations`
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1. Then you must add that name to the `customVariableNameIdMap` declaration
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1. The id must be between 1 and 5
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1. There can be no more than 5 custom variables assigned ids on a given url
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