DeepSeekFileStore

Namespace: Vercel.AI.DeepSeek

public sealed class DeepSeekFileStore : IFileStore, IFileStore

Uploads images to POST /files with purpose user_data.

Inheritance: object

Implements: IFileStore, IFileStore

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Constructors

DeepSeekFileStore(DeepSeekProvider)

public DeepSeekFileStore(DeepSeekProvider provider)

Creates a file store.

Parameters

Name	Type	Description
provider	DeepSeekProvider

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Fields

MaxBytes

public const long MaxBytes = 67108864

Maximum upload size, 64 MiB.

Value: long

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MaxExpirySeconds

public const int MaxExpirySeconds = 2592000

Longest accepted expiry, in seconds.

Value: int

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MaxFileNameLength

public const int MaxFileNameLength = 512

Maximum filename length.

Value: int

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MinExpirySeconds

public const int MinExpirySeconds = 3600

Shortest accepted expiry, in seconds.

Value: int

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Properties

ExpiresAfterSeconds

public int? ExpiresAfterSeconds { get; set; }

When set, sent as expires_after[seconds] with anchor created_at.

Value: int?

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Provider

public string Provider { get; }

Provider id.

Value: string

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SpecificationVersion

public string SpecificationVersion { get; }

Files specification version.

Value: string

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Methods

UploadFileAsync(string, byte[], string, CancellationToken)

public Task<UploadedFile> UploadFileAsync(string fileName, byte[] data, string mediaType, CancellationToken cancellationToken)

Uploads a file.

Parameters

Name	Type	Description
fileName	string
data	byte[]
mediaType	string
cancellationToken	CancellationToken

Returns: Task<UploadedFile>

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UploadFileAsync(UploadFileCall, CancellationToken)

public Task<UploadFileModelResult> UploadFileAsync(UploadFileCall call, CancellationToken cancellationToken)

Uploads inline data. Streams are rejected. deepseek.expiresAfter overrides ExpiresAfterSeconds.

Parameters

Name	Type	Description
call	UploadFileCall
cancellationToken	CancellationToken

Returns: Task<UploadFileModelResult>

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Validate(long, string?, string, byte[]?)

public static void Validate(long length, string? fileName, string mediaType, byte[]? data)

Checks size, filename, media type, and magic bytes before any request is sent.

Parameters

Name	Type	Description
length	long
fileName	string
mediaType	string
data	byte[]

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