28 lines
902 B
Go
28 lines
902 B
Go
package httpclientprovider
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import (
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"net/http"
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"github.com/grafana/grafana-plugin-sdk-go/backend/httpclient"
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)
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// SetUserAgentMiddlewareName is the middleware name used by SetUserAgentMiddleware.
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const SetUserAgentMiddlewareName = "user-agent"
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// SetUserAgentMiddleware is middleware that sets the HTTP header User-Agent on the outgoing request.
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// If User-Agent already set, it will not be overridden by this middleware.
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func SetUserAgentMiddleware(userAgent string) httpclient.Middleware {
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return httpclient.NamedMiddlewareFunc(SetUserAgentMiddlewareName, func(opts httpclient.Options, next http.RoundTripper) http.RoundTripper {
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if userAgent == "" {
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return next
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}
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return httpclient.RoundTripperFunc(func(req *http.Request) (*http.Response, error) {
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if req.Header.Get("User-Agent") == "" {
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req.Header.Set("User-Agent", userAgent)
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}
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return next.RoundTrip(req)
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})
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})
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}
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