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Created Nvidia API (markdown)

Jakob 2021-05-02 12:53:07 +02:00
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The [Nvidia driver download page](https://www.nvidia.com/Download/index.aspx) uses an API in the background to supply the correct drivers for the data entered.
The base API url used for EnvyUpdate is `https://www.nvidia.com/Download/processDriver.aspx`. It works using regular HTTP GET requests.
Accepted arguments which were found so far are:
| API name | required? | default value | explanation | example |
|----------|-----------|---------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------|
| `psid` | yes | | Product Series ID | `psid=101` for GeForce 10 Series |
| `pfid` | yes | | Product ID | `psid=101&pfid=845` for GeForce GTX 1080 Ti |
| `osid` | yes | | Operating System ID | `osid=57` for Windows 10 64bit |
| `lid` | no | 1 | Language ID, defaults to English (US) | `lid=1` for English (US). |
| `dtcid` | no | 0 | Switch to use [DCH drivers](https://nvidia.custhelp.com/app/answers/detail/a_id/4777/~/nvidia-dch%2Fstandard-display-drivers-for-windows-10-faq) or not. Defaults to non-DCH. | `dtcid=1` for DCH drivers |
The API uses multiple different IDs to work, which are mostly arbitrary. These can be found using a different API URL.
* List all GPUs with their `psid` (the value in `ParentID`) and theit `pfid` (the value in `Value`): https://www.nvidia.com/Download/API/lookupValueSearch.aspx?TypeID=3
* List all operating systems and their ID (`Value`): https://www.nvidia.com/Download/API/lookupValueSearch.aspx?TypeID=4
* List all languages and their ID (`Value`): https://www.nvidia.com/Download/API/lookupValueSearch.aspx?TypeID=5
A complete request URL with all parameters would be in this form:
`https://www.nvidia.com/Download/processDriver.aspx?psid=<ProductSeries>&pfid=<ProductType>&osid=<OperatingSystem>&lid=<Language>&dtcid=<0 or 1>`
An example URL for the most recent driver for the GeForce 1080 Ti for Windows 10 x64 using UK English and DCH would be:
`https://www.nvidia.com/Download/processDriver.aspx?psid=101&pfid=845&osid=57&lid=2&dtcid=1`
**Keep in mind that this API returns a URL to the download page of the most recent driver, NOT a direct download link!**