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3.8 KiB
3.8 KiB
title, id, slug, sidebar_position
| title | id | slug | sidebar_position |
|---|---|---|---|
| Parse Response Packet | how-to-parse-response | /socket/protocol/response | 5 |
One peer need send back a response packet after receiving and handlding request packet.
:::info
Packet type is 2
:::
Structure
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| type=2|v|g|re.| cmd_code | request_id |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| | status_code | body_len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| body_len | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
| body(by body_len) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ nonce(optional) +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ +
| |
+ signature(optional) +
| |
+ +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Fields Descriptions:
| Field | Length in bit | Length in byte | description |
|---|---|---|---|
| cmd_code | 8 | 1 | Command |
| request_id | 32(uint32) | 4 | Request id, need to be same as request packet for pairing |
| status | 8(uint8) | 1 | status code: 0 - success; others show in status code table |
| body_len | 24(uint32) | 3 | Then length of body in bytes. Max: 16 MB If gzip is enabled, the value is after compress |
| body | Variable length, decide by body_len |
variable length | body,max size: 16 MB |
| nonce | 64 | 8 | exists when verify is 1 |
| signature | 128 | 16 | exists when verify is 1 |
Status Code Table
| value | flag | description |
|---|---|---|
| 0 | SUCCESS | Success like HTTP status 200 |
| 1 | SERVER_TIMEOUT | Timeout like HTTP status 408 |
| 3 | BAD_REQUEST | Bad Request like HTTP 400 |
| 5 | UNAUTHENTICATED | Unauthorized like HTTP 401 |
| 7 | SERVER_INTERNAL_ERROR | Internal server like HTTP 500 |