# Authorization

## Get or refresh tokens

> Use \`grant\_type: password\` to obtain tokens for the first time, or\
> \`grant\_type: refresh\_token\` to rotate them without re-entering credentials.\
> Each refresh resets the access token expiry and issues a new refresh token.<br>

```json
{"openapi":"3.0.3","info":{"title":"Daxium Air API","version":"v1.3"},"tags":[{"name":"auth"}],"servers":[{"url":"https://api.daxium-air.com","description":"Production"}],"security":[{"BearerAuth":[]}],"components":{"securitySchemes":{"BearerAuth":{"type":"http","scheme":"bearer"}},"schemas":{"PasswordGrantRequest":{"type":"object","required":["client_id","client_secret","grant_type","username","password"],"properties":{"client_id":{"type":"string"},"client_secret":{"type":"string"},"grant_type":{"type":"string","enum":["password"]},"username":{"type":"string","format":"email"},"password":{"type":"string","format":"password"}}},"RefreshTokenGrantRequest":{"type":"object","required":["client_id","client_secret","grant_type","refresh_token"],"properties":{"client_id":{"type":"string"},"client_secret":{"type":"string"},"grant_type":{"type":"string","enum":["refresh_token"]},"refresh_token":{"type":"string"}}},"TokenResponse":{"type":"object","properties":{"access_token":{"type":"string"},"refresh_token":{"type":"string"},"expires_in":{"type":"integer","description":"Validity in seconds (3600)"},"token_type":{"type":"string"},"scope":{"type":"string"}}},"ErrorResponse":{"type":"object","properties":{"code":{"type":"string","description":"Unique error code prefixed with `DAERR-`"},"message":{"type":"string"},"url":{"type":"string","format":"uri","description":"Link to the detailed error documentation"},"api_version":{"type":"string"},"infos":{"type":"array","items":{},"description":"Additional context (may be empty)"},"server_time":{"type":"string","description":"Unix timestamp as string"}}}},"responses":{"Unauthorized":{"description":"Invalid or expired token","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}}}},"paths":{"/oauth/v2/token":{"post":{"summary":"Get or refresh tokens","description":"Use `grant_type: password` to obtain tokens for the first time, or\n`grant_type: refresh_token` to rotate them without re-entering credentials.\nEach refresh resets the access token expiry and issues a new refresh token.\n","tags":["auth"],"operationId":"getOrRefreshToken","requestBody":{"required":true,"content":{"application/x-www-form-urlencoded":{"schema":{"oneOf":[{"$ref":"#/components/schemas/PasswordGrantRequest"},{"$ref":"#/components/schemas/RefreshTokenGrantRequest"}]}}}},"responses":{"200":{"description":"Token pair issued successfully","content":{"application/json":{"schema":{"$ref":"#/components/schemas/TokenResponse"}}}},"401":{"$ref":"#/components/responses/Unauthorized"}}}}}}
```


---

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