> For the complete documentation index, see [llms.txt](https://boinc-ai.gitbook.io/inference-endpoints/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://boinc-ai.gitbook.io/inference-endpoints/others/serialization-and-deserialization-for-requests.md).

# Serialization & Deserialization for Requests

## Serialization & Deserialization for Requests

BOINC AI Inference Endpount comes with a default serving container which is used for all [supported Transformers and Sentence-Transformers tasks](https://huggingface.co/docs/inference-endpoints/supported_tasks) and for [custom inference handler](https://huggingface.co/docs/inference-endpoints/guides/custom_handler). The serving container takes care of serialization and deserialization of the request and response payloads based on the `content-type` and `accept` headers of the request. That means that when you send a request with a JSON body and a `content-type: application/json` header, the serving container will deserialize the JSON payload into a Python dictionary and pass it to the inference handler and if you send a request with a `accept: image/png` header, the serving container will seralize the response from the task/custom handler into a image.

Below is a list of supported `content-types` and the deserialized payload that is passed to the inference handler.

| Content-Type           | Payload                   |
| ---------------------- | ------------------------- |
| application/json       | `dict`                    |
| text/csv               | `raw`                     |
| text/plain             | `raw`                     |
| image/png              | `binary`                  |
| image/jpeg             | `binary`                  |
| image/jpg              | `binary`                  |
| image/tiff             | `binary`                  |
| image/bmp              | `binary`                  |
| image/gif              | `binary`                  |
| image/webp             | `binary`                  |
| image/x-image          | `binary`                  |
| audio/x-flac           | `{"inputs": bytes(body)}` |
| audio/flac             | `{"inputs": bytes(body)}` |
| audio/mpeg             | `{"inputs": bytes(body)}` |
| audio/x-mpeg-3         | `{"inputs": bytes(body)}` |
| audio/wave             | `{"inputs": bytes(body)}` |
| audio/wav              | `{"inputs": bytes(body)}` |
| audio/x-wav            | `{"inputs": bytes(body)}` |
| audio/ogg              | `{"inputs": bytes(body)}` |
| audio/x-audio          | `{"inputs": bytes(body)}` |
| audio/webm             | `{"inputs": bytes(body)}` |
| audio/webm;codecs=opus | `{"inputs": bytes(body)}` |
| audio/AMR              | `{"inputs": bytes(body)}` |
| audio/amr              | `{"inputs": bytes(body)}` |
| audio/AMR-WB           | `{"inputs": bytes(body)}` |
| audio/AMR-WB+          | `{"inputs": bytes(body)}` |
| audio/m4a              | `{"inputs": bytes(body)}` |
| audio/x-m4a            | `{"inputs": bytes(body)}` |

Below is a list of supported `accept` headers and the serialized payload is returned.

| Accept           | Payload  |
| ---------------- | -------- |
| application/json | `JSON`   |
| text/csv         | `raw`    |
| text/plain       | `raw`    |
| image/png        | `binary` |
| image/jpeg       | `binary` |
| image/jpg        | `binary` |
| image/tiff       | `binary` |
| image/bmp        | `binary` |
| image/gif        | `binary` |
| image/webp       | `binary` |
| image/x-image    | `binary` |