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Add Link headers by offset/limit capability to BaseApi

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This commit is contained in:
Hank Grabowski 2023-02-17 13:24:00 -05:00
parent df4af8da9b
commit 2754cdc5d6
1 changed files with 40 additions and 0 deletions
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40
src/Module/BaseApi.php
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@ -168,6 +168,34 @@ class BaseApi extends BaseModule
return 'Link: <' . $next . '>; rel="next", <' . $prev . '>; rel="prev"'; return 'Link: <' . $next . '>; rel="next", <' . $prev . '>; rel="prev"';
} }
/**
* Get the "link" header with "next" and "prev" links for an offset/limit type call
* @return string
*/
protected static function getOffsetAndLimitLinkHeader(int $offset, int $limit): string
{
$request = self::$request;
unset($request['offset']);
$request['limit'] = $limit;
$prev_request = $next_request = $request;
$prev_request['offset'] = $offset - $limit;
$next_request['offset'] = $offset + $limit;
$command = DI::baseUrl() . '/' . DI::args()->getCommand();
$prev = $command . '?' . http_build_query($prev_request);
$next = $command . '?' . http_build_query($next_request);
if ($prev_request['offset'] >= 0) {
return 'Link: <' . $next . '>; rel="next", <' . $prev . '>; rel="prev"';
} else {
return 'Link: <' . $next . '>; rel="next"';
}
}
/** /**
* Set the "link" header with "next" and "prev" links * Set the "link" header with "next" and "prev" links
* @return void * @return void
@ -180,6 +208,18 @@ class BaseApi extends BaseModule
} }
} }
/**
* Set the "link" header with "next" and "prev" links
* @return void
*/
protected static function setLinkHeaderByOffsetLimit(int $offset, int $limit)
{
$header = self::getOffsetAndLimitLinkHeader($offset, $limit);
if (!empty($header)) {
header($header);
}
}
/** /**
* Check if the app is known to support quoted posts * Check if the app is known to support quoted posts
* *