mirror of https://github.com/gofiber/fiber.git
51 lines
1.4 KiB
Go
51 lines
1.4 KiB
Go
package timeout
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import (
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"context"
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"errors"
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"time"
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"github.com/gofiber/fiber/v3"
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)
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// New enforces a timeout for each incoming request. If the timeout expires or
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// any of the specified errors occur, fiber.ErrRequestTimeout is returned.
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func New(h fiber.Handler, timeout time.Duration, tErrs ...error) fiber.Handler {
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return func(ctx fiber.Ctx) error {
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// Create a context with the specified timeout; any operation exceeding
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// this deadline will be canceled automatically.
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timeoutContext, cancel := context.WithTimeout(ctx.Context(), timeout)
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defer cancel()
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// Attach the timeout-bound context to the current Fiber context.
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ctx.SetContext(timeoutContext)
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// Execute the wrapped handler synchronously.
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err := h(ctx)
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// If the context has timed out, return a request timeout error.
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if timeoutContext.Err() != nil && errors.Is(timeoutContext.Err(), context.DeadlineExceeded) {
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return fiber.ErrRequestTimeout
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}
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// If the handler returned an error, check whether it's a deadline exceeded
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// error or any other listed timeout-triggering error.
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if err != nil {
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if errors.Is(err, context.DeadlineExceeded) || isCustomError(err, tErrs) {
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return fiber.ErrRequestTimeout
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}
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}
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return err
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}
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}
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// isCustomError checks whether err matches any error in errList using errors.Is.
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func isCustomError(err error, errList []error) bool {
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for _, e := range errList {
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if errors.Is(err, e) {
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return true
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}
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}
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return false
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}
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