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32 lines
852 B
32 lines
852 B
/**
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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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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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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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