47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
package api
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import (
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"strconv"
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"github.com/gofiber/fiber/v2"
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)
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const (
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// DefaultPage is the default page to use if none is specified or an invalid value is provided
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DefaultPage = 1
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// DefaultPageSize is the default page size to use if none is specified or an invalid value is provided
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DefaultPageSize = 50
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)
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func extractPageAndPageSizeFromRequest(c *fiber.Ctx, maximumNumberOfResults int) (page, pageSize int) {
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var err error
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if pageParameter := c.Query("page"); len(pageParameter) == 0 {
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page = DefaultPage
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} else {
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page, err = strconv.Atoi(pageParameter)
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if err != nil {
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page = DefaultPage
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}
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if page < 1 {
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page = DefaultPage
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}
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}
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if pageSizeParameter := c.Query("pageSize"); len(pageSizeParameter) == 0 {
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pageSize = DefaultPageSize
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} else {
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pageSize, err = strconv.Atoi(pageSizeParameter)
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if err != nil {
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pageSize = DefaultPageSize
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}
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}
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if page == 1 && pageSize > maximumNumberOfResults {
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// If the page is 1 and the page size is greater than the maximum number of results, return
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// no more than the maximum number of results
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pageSize = maximumNumberOfResults
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} else if pageSize < 1 {
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pageSize = DefaultPageSize
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}
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return
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}
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