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d49c44426f
The usage metrics for the injected web3 instance were being sent upon each use, which exceeded the limits of our Matomo plan. These metrics are now only being sent upon the first usage, for each origin and property.
42 lines
1.1 KiB
JavaScript
42 lines
1.1 KiB
JavaScript
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const recordedWeb3Usage = {}
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/**
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* Returns a middleware that implements the following RPC methods:
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* - metamask_logInjectedWeb3Usage
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*
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* @param {Object} opts - The middleware options
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* @param {string} opts.origin - The origin for the middleware stack
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* @param {Function} opts.sendMetrics - A function for sending a metrics event
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* @returns {(req: any, res: any, next: Function, end: Function) => void}
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*/
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export default function createMethodMiddleware ({ origin, sendMetrics }) {
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return function methodMiddleware (req, res, next, end) {
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switch (req.method) {
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case 'metamask_logInjectedWeb3Usage':
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const { action, name } = req.params[0]
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if (!recordedWeb3Usage[origin]) {
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recordedWeb3Usage[origin] = {}
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}
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if (!recordedWeb3Usage[origin][name]) {
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recordedWeb3Usage[origin][name] = true
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sendMetrics({
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action,
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name,
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customVariables: { origin },
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})
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}
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res.result = true
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break
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default:
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return next()
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}
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return end()
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}
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}
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