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24 lines
808 B
24 lines
808 B
1 month ago
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const k2c = require('koa2-connect')
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const httpProxy = require('http-proxy-middleware')
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const contextMatcher = require('http-proxy-middleware/dist/context-matcher.js')
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module.exports = (options = {}) => ({ _root, app }) => {
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const proxies = Object.entries(options).reduce(
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(proxies, [context, contextOptions]) =>
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proxies.set(context, httpProxy.createProxyMiddleware(context, contextOptions)),
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new Map()
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)
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return app.use(async (ctx, next) => {
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for (const context of proxies.keys()) {
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// emulate `shouldProxy` from http-proxy-middleware
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// because otherwise we might call next() more than once and break koa
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if (contextMatcher.match(context, ctx.path, ctx.req)) {
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await k2c(proxies.get(context))(ctx, next)
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break
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}
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}
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await next()
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})
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}
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