# Code 300, unsupported content type **URL:** \ **Category:** API and Webhooks\ **Tags:** api\ **Created:** [April 20, 2023, 2:06pm UTC](https://devforum.zoom.us/t/code-300-unsupported-content-type/87102 "2023-04-20T14:06:17Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![pascal.ney](https://avatars.discourse-cdn.com/v4/letter/p/aca169/32.png) [@pascal.ney](https://devforum.zoom.us/u/pascal.ney)\ **Post date:** [April 20, 2023, 2:06pm UTC](https://devforum.zoom.us/t/code-300-unsupported-content-type/87102/1 "2023-04-20T14:06:17Z")
Hello, I am trying to build a chat application on a website with the zoom api. When I try to post a message I get the following answer: ```auto {"code":300,"message":"Unsupported Content Type"} ``` get requests work just fine. Also there are no issues with posting in postman. This is my post request: ```auto this.api .post('chat/users/me/messages/', body) .then((response) => console.log(response)) ``` with the body being: ```auto let body = JSON.stringify({ message: event.detail[0].content, channel_id: this.curRoom.zoom_id }) ``` And here I set my headers with Authentication: ```auto this.api = axios.create({ baseURL: baseURL, headers: { Authorization: `Bearer ${this.accessToken}` } }) ``` As I said, get requests work, but if I try said post request I always get code 300 in the answer and Error 415: “Unsupported Media Type” in the browser. I would appreciate any help on that topic, since I am very new to working with APIs. ---
**Author:** ![MultiplayerSession](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/multiplayersession/32/66446_2.png) [@MultiplayerSession](https://devforum.zoom.us/u/MultiplayerSession)\ **Post date:** [April 20, 2023, 2:22pm UTC](https://devforum.zoom.us/t/code-300-unsupported-content-type/87102/2 "2023-04-20T14:22:36Z")
If you include a body (which is something that the HTTP `POST` method expects you to do), you should add the `Content-Type` header to indicate how to interpret the body. For Zoom APIs, you’ll typically use `application/x-www-form-urlencoded; charset=utf-8` or `application/json; charset=utf-8` depending on whether you format the body as a query string or as JSON. I don’t see an explicit content type specified, so maybe there is a default value being sent that doesn’t match the JSON you’re sending. ---
**Author:** ![pascal.ney](https://avatars.discourse-cdn.com/v4/letter/p/aca169/32.png) [@pascal.ney](https://devforum.zoom.us/u/pascal.ney)\ **Post date:** [April 21, 2023, 6:54am UTC](https://devforum.zoom.us/t/code-300-unsupported-content-type/87102/3 "2023-04-21T06:54:02Z")
Hi, I already tried it with application/json as follows: ```auto await this.api .post('chat/users/me/messages/', body, { headers: { 'content-type': 'application/json' } }) ``` In my browser it even says. that `content-type:application/json` is set. I need it to work with json, but I don’t know what the issue is. ---
**Author:** ![MultiplayerSession](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/multiplayersession/32/66446_2.png) [@MultiplayerSession](https://devforum.zoom.us/u/MultiplayerSession)\ **Post date:** [April 21, 2023, 1:18pm UTC](https://devforum.zoom.us/t/code-300-unsupported-content-type/87102/4 "2023-04-21T13:18:07Z")
Have you checked the [API Call Logs](https://marketplace.zoom.us/user/logs) to compare what Zoom receives for your successful and failing calls? That might help quickly narrow down the differences without having to connect a web traffic proxy debugger like Fiddler to audit what’s being sent from your web server. ---
**Author:** ![pascal.ney](https://avatars.discourse-cdn.com/v4/letter/p/aca169/32.png) [@pascal.ney](https://devforum.zoom.us/u/pascal.ney)\ **Post date:** [April 25, 2023, 10:26am UTC](https://devforum.zoom.us/t/code-300-unsupported-content-type/87102/5 "2023-04-25T10:26:06Z")
I have checked it right now. Apparently the zoom api does not support content-type: x-www-form-urlencoded . I have tried it in Postman and got Error 415. Also for some reason I cannot change the content-type in my code. If I try `let body = JSON.stringify({ message: event.detail[0].content, to\_channel: this.curRoom.zoom\_id }) ``` await this.api .post('chat/users/me/messages', body, { headers: { 'content-type': 'application/json' } }) .then((response) => console.log(response))` ``` , the zoom API just returns: ```auto { "endpoint": "https://api.zoom.us/v2/chat/users/me/messages", "response_headers": [ "Set-Cookie: zm_aid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly" ], "date_time": "2023-04-25 12:22:35", "method": "POST", "request_body": "N/A", "response": { "code": 300, "message": "Unsupported Content Type" }, "request_headers": [ "accept-encoding: gzip", "accept: application/json, text/plain, */*", "authorization: ******", "connection: close", "content-type: application/x-www-form-urlencoded", "user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36 Edg/112.0.1722.58" ], "request_params": [ ], "http_status": "415" }. As you can see, apparently the content-type is not being set correctly, and I do not know how to fix this. ``` ---
**Author:** ![pascal.ney](https://avatars.discourse-cdn.com/v4/letter/p/aca169/32.png) [@pascal.ney](https://devforum.zoom.us/u/pascal.ney)\ **Post date:** [April 25, 2023, 10:27am UTC](https://devforum.zoom.us/t/code-300-unsupported-content-type/87102/6 "2023-04-25T10:27:12Z")
> [@pascal.ney](#): > > ```auto > . > As you can see, apparently the content-type is not being set correctly, and I do not know how to fix this. > > ``` Accidentally slipped into the code section ^^ ---
**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:** [April 28, 2024, 2:03am UTC](https://devforum.zoom.us/t/code-300-unsupported-content-type/87102/7 "2024-04-28T02:03:28Z")
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