DeepSeekGateway
class DeepSeekGateway implements StepTextGateway
Traits
Methods
Add structured output requirements to the instructions.
Build the request body for the current text generation step.
Build the request body for the Chat Completions API.
Build the response format options for structured output.
Create an HTTP client with the provider's request options.
Select a boot-registered connection without retaining dynamic provider names.
Process a Chat Completions streaming response and yield Hypervel stream events.
Map raw streaming tool call data to ToolCall DTOs.
Generate a lowercase UUID v7 for use as a stream event ID.
Map the given Hypervel attachments to Chat Completions content parts.
Map the given Hypervel messages to Chat Completions messages format.
Map a user message to Chat Completions format.
Map an assistant message to Chat Completions format.
Map a tool result message to Chat Completions format.
Serialize a tool call DTO to Chat Completions array format.
Decode a structured output payload, tolerating markdown code fences.
Validate the DeepSeek response data.
Parse the DeepSeek response data into a single step response.
Extract and map the finish reason from the response.
Execute a callback with failoverable error handling.
Get the short Retry-After delay of a rate limited or overloaded response, if it has one.
Determine if the response is a 402, or a 429 insufficient credits or quota error rather than a rate limit.
Get the status codes that indicate a provider is transiently unavailable and the request should fail over.
Get the patterns used to detect insufficient credits or quota errors.
Get the error codes or types that indicate insufficient credits or quota on a 429 response.
Map a provider tool to a Chat Completions tool definition.
Parse an SSE stream body into decoded JSON data objects.
Read one line without waiting for a larger body buffer to fill.
Generate text for a single Chat Completions step.
Stream text for a single Chat Completions step.
Get the stream options sent with a streaming Chat Completions request.
Details
in
ComposesSchemaInstructions at line 14
protected string|null
composeInstructions(string|null $instructions, array|null $schema)
Add structured output requirements to the instructions.
in
BuildsTextRequests at line 21
protected array
buildStepBody(Provider $provider, string $model, string|null $instructions, array $messages, array $tools, array|null $schema, TextGenerationOptions|null $options, StepContext $stepContext)
Build the request body for the current text generation step.
in
BuildsTextRequests at line 37
protected array
buildTextRequestBody(Provider $provider, string $model, string|null $instructions, array $messages, array $tools, array|null $schema, TextGenerationOptions|null $options)
Build the request body for the Chat Completions API.
in
BuildsTextRequests at line 90
protected array
buildResponseFormat()
Build the response format options for structured output.
in
CreatesClient at line 21
protected PendingRequest
createClient(string $baseUrl, array $headers = [], array $configuredHeaders = [], int|null $timeout = 60, bool $throw = true)
Create an HTTP client with the provider's request options.
in
CreatesClient at line 43
protected string
httpConnection(Provider $provider)
Select a boot-registered connection without retaining dynamic provider names.
in
CreatesDeepSeekClient at line 18
protected PendingRequest
client(Provider $provider, int|null $timeout = null)
Get an HTTP client for the DeepSeek API.
in
CreatesDeepSeekClient at line 31
protected string
baseUrl(Provider $provider)
Get the base URL for the DeepSeek API.
in
HandlesTextStreaming at line 33
protected Generator
processTextStream(string $invocationId, Provider $provider, string $model, StreamInterface $streamBody)
Process a Chat Completions streaming response and yield Hypervel stream events.
in
HandlesTextStreaming at line 232
protected array
mapStreamToolCalls(array $toolCalls)
Map raw streaming tool call data to ToolCall DTOs.
in
HandlesTextStreaming at line 245
protected string
generateEventId()
Generate a lowercase UUID v7 for use as a stream event ID.
in
MapsAttachments at line 22
protected array
mapAttachments(Collection $attachments)
Map the given Hypervel attachments to Chat Completions content parts.
in
MapsAttachments at line 62
protected bool
isImage(UploadedFile $attachment)
Determine if the given uploaded file is an image.
in
MapsMessages at line 19
protected array
mapMessagesToChat(array $messages, string|null $instructions = null)
Map the given Hypervel messages to Chat Completions messages format.
in
MapsMessages at line 46
protected void
mapUserMessage(UserMessage|Message $message, array $chatMessages)
Map a user message to Chat Completions format.
in
MapsMessages at line 69
protected void
mapAssistantMessage(AssistantMessage|Message $message, array $chatMessages)
Map an assistant message to Chat Completions format.
in
MapsMessages at line 97
protected void
mapToolResultMessage(ToolResultMessage|Message $message, array $chatMessages)
Map a tool result message to Chat Completions format.
in
MapsMessages at line 115
protected array
serializeToolCallToChat(ToolCall $toolCall)
Serialize a tool call DTO to Chat Completions array format.
in
DecodesStructuredOutput at line 12
protected array
decodeStructuredOutput(string|null $text)
Decode a structured output payload, tolerating markdown code fences.
in
ParsesTextResponses at line 25
protected void
validateTextResponse(array $data)
Validate the DeepSeek response data.
in
ParsesTextResponses at line 43
protected StepResponse
parseTextResponse(array $data, Provider $provider, bool $structured)
Parse the DeepSeek response data into a single step response.
DeepSeek thinking-mode responses can include reasoning_content on each
choice's message. We capture it into replayBlocks; the message
mapper only replays it for assistant messages that include tool calls.
in
ParsesTextResponses at line 81
protected TextUsage
extractUsage(array $data)
Extract usage data from the response.
in
ParsesTextResponses at line 96
protected FinishReason
extractFinishReason(array $choice)
Extract and map the finish reason from the response.
in
HandlesFailoverErrors at line 26
protected mixed
withErrorHandling(string $providerName, Closure $callback)
Execute a callback with failoverable error handling.
in
HandlesFailoverErrors at line 91
protected int|null
retryAfterSeconds(Throwable $exception)
Get the short Retry-After delay of a rate limited or overloaded response, if it has one.
in
HandlesFailoverErrors at line 115
protected bool
isInsufficientCredits(RequestException $exception)
Determine if the response is a 402, or a 429 insufficient credits or quota error rather than a rate limit.
in
HandlesFailoverErrors at line 138
protected array
overloadedStatusCodes()
Get the status codes that indicate a provider is transiently unavailable and the request should fail over.
in
HandlesFailoverErrors at line 148
protected array
insufficientCreditPatterns()
Get the patterns used to detect insufficient credits or quota errors.
in
HandlesFailoverErrors at line 158
protected array
insufficientCreditCodes()
Get the error codes or types that indicate insufficient credits or quota on a 429 response.
in
MapsChatCompletionTools at line 22
protected array
mapTools(array $tools, Provider $provider)
Map the given tools to Chat Completions function definitions.
in
MapsChatCompletionTools at line 40
protected array
mapProviderTool(ProviderTool $tool, Provider $provider)
Map a provider tool to a Chat Completions tool definition.
in
MapsChatCompletionTools at line 48
protected array
mapTool(Tool $tool)
Map a regular tool to a Chat Completions function definition.
in
MapsChatCompletionTools at line 76
protected string|array
mapToolChoice(ToolChoice $choice)
Map a tool choice to the Chat Completions tool_choice shape.
in
ParsesServerSentEvents at line 24
protected Generator
parseServerSentEvents(StreamInterface $streamBody)
Parse an SSE stream body into decoded JSON data objects.
in
ParsesServerSentEvents at line 52
protected string
readLine(StreamInterface $streamBody)
Read one line without waiting for a larger body buffer to fill.
in
PerformsChatCompletionSteps at line 19
StepResponse
generateTextStep(TextProvider $provider, string $model, string|null $instructions, array $messages, array $tools, array|null $schema, TextGenerationOptions|null $options, int|null $timeout, StepContext $stepContext)
Generate text for a single Chat Completions step.
in
PerformsChatCompletionSteps at line 48
Generator
generateStreamStep(string $invocationId, TextProvider $provider, string $model, string|null $instructions, array $messages, array $tools, array|null $schema, TextGenerationOptions|null $options, int|null $timeout, StepContext $stepContext)
Stream text for a single Chat Completions step.
in
PerformsChatCompletionSteps at line 82
protected array|null
streamOptions(Provider $provider)
Get the stream options sent with a streaming Chat Completions request.
at line 30
__construct(Dispatcher $events)
Create a DeepSeek gateway.