# Invalid redirect: ../zooms/callback (4,700) on valid callback url

**URL:** <https://devforum.zoom.us/t/invalid-redirect-zooms-callback-4-700-on-valid-callback-url/71065>\
**Category:** API and Webhooks\
**Created:** [June 24, 2022, 1:01pm UTC](https://devforum.zoom.us/t/invalid-redirect-zooms-callback-4-700-on-valid-callback-url/71065 "2022-06-24T13:01:20Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![jagguy999](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jagguy999/32/33867_2.png) [@jagguy999](https://devforum.zoom.us/u/jagguy999)\
**Post date:** [June 24, 2022, 1:01pm UTC](https://devforum.zoom.us/t/invalid-redirect-zooms-callback-4-700-on-valid-callback-url/71065/1 "2022-06-24T13:01:20Z")

</div>

I just created my unpublished app and i used the client/secret from production not development on app market place. I have the client/secret and redirect url . I test the program as i followed [https://artisansweb.net/how-to-create-a-meeting-on-zoom-using-zoom-api-and-php/](https://artisansweb.net/how-to-create-a-meeting-on-zoom-using-zoom-api-and-php/)

its a valid call back so why the issue?

**Error?**  
Invalid redirect: [https://2c0f-144-48-37-133.au.ngrok.io/crm\_system/zooms/callback](https://2c0f-144-48-37-133.au.ngrok.io/crm_system/zooms/callback) (4,700)

public function callback() {

```
try {
	$client = new Client(['base_uri' => 'https://zoom.us']);

	$response = $client->request('POST', '/oauth/token', [
    	"headers" => [
        "Authorization" => "Basic ". base64_encode($this->zoomapikey.':'.$this->zoomapisecret)
    	],
    	'form_params' => [
        	"grant_type" => "authorization_code",
        	"code" => $_GET['code'],
        	"redirect_uri" => $this->redirectzoom
    	]	,
	]);

	$token = json_decode($response->getBody()->getContents(), true);

	//debug($token);
	//exit;

	
	$result=$this->Zooms->update_access_token(json_encode($token));

} 
catch(Exception $e) {
	echo $e->getMessage();
}

```

}

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<div class="post-metadata">

**Author:** ![donte.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/donte.zoom/32/24412_2.png) [@donte.zoom](https://devforum.zoom.us/u/donte.zoom)\
**Post date:** [June 28, 2022, 1:36am UTC](https://devforum.zoom.us/t/invalid-redirect-zooms-callback-4-700-on-valid-callback-url/71065/2 "2022-06-28T01:36:13Z")

</div>

@jagguy999,

Have you tried testing the OAuth flow with another URL? If so, please share what results of your testing.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [July 28, 2022, 11:36am UTC](https://devforum.zoom.us/t/invalid-redirect-zooms-callback-4-700-on-valid-callback-url/71065/3 "2022-07-28T11:36:55Z")

</div>

Closed on July 28, 2022, 11:36am UTC

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