feat: go doc added

README.md

@@ -1,12 +1,18 @@
-# Go Client - Deepseek API
+# Go-Deepseek -- Go Client for [Deepseek API](https://api-docs.deepseek.com/)
 
-### Why yet another Go client?
+## Demo
 
-We needed to call the DeepSeek API from one of our Go services but couldn't find a complete and reliable Go client, so we built our own.
+Left side -- https://chat.deepseek.com/
 
-### Why this Go client is best?
+Right side -- [deepseek-demo](https://github.com/go-deepseek/deepseek-demo)
 
-Because this Go client is not only complete and reliable but also simple and performant.
+https://github.com/user-attachments/assets/baa05145-a13c-460d-91ce-90129c5b32d7
+
+## Why yet another Go client?
+
+We needed to call the DeepSeek API from one of our Go services but couldn't find a complete and reliable Go client, so we built our own.
+
+## Why this Go client is better?
 
 - **Complete** – It offers full support for all APIs, including their complete request and response payloads. (Note: Beta feature support coming soon.)
 
@@ -21,14 +27,6 @@ Because this Go client is not only complete and reliable but also simple and per
 go get github.com/go-deepseek/deepseek
 ```
 
-## Demo
-
-Left side -- https://chat.deepseek.com/
-
-Right side -- [deepseek-demo](https://github.com/go-deepseek/deepseek-demo)
-
-https://github.com/user-attachments/assets/baa05145-a13c-460d-91ce-90129c5b32d7
-
 ## Usage
 
 Here’s an example of sending a "Hello Deepseek!" message using `model=deepseek-chat` and `stream=false`
@@ -67,6 +65,23 @@ func main() {
 }
 ```
 
+Try above example:
+```
+First copy above code in `main.go`
+
+$ go mod init
+$ go get github.com/go-deepseek/deepseek
+
+$ go run main.go
+output => Hello! How can I assist you today? 😊
+```
+
 ## Examples
 
 Please check the [examples](examples/) directory, which showcases each feature of this client.
+
+![examples](docs/examples_directory.png)
+
+## Buy me a GitHub Star ⭐
+
+If you like our work then please give github star to this repo. 😊

config/config.go

@@ -1,5 +1,10 @@
 package config
 
+// Config for deepseek client.
+//
+//	ApiKey - deepseek API key.
+//	TimeoutSeconds - http client timeout used by deepseek client.
+//	DisableRequestValidation - disable request validation by deepseek client.
 type Config struct {
 	ApiKey                   string
 	TimeoutSeconds           int

deepseek.go

@@ -17,15 +17,27 @@ const (
 )
 
 type Client interface {
+	// CallChatCompletionsChat calls chat api with model=deepseek-chat and stream=false.
+	// It returns response from DeepSeek-V3 model.
 	CallChatCompletionsChat(ctx context.Context, chatReq *request.ChatCompletionsRequest) (*response.ChatCompletionsResponse, error)
+
+	// CallChatCompletionsReasoner calls chat api with model=deepseek-reasoner and stream=false.
+	// It returns response from DeepSeek-R1 model.
 	CallChatCompletionsReasoner(ctx context.Context, chatReq *request.ChatCompletionsRequest) (*response.ChatCompletionsResponse, error)
 
+	// StreamChatCompletionsChat calls chat api with model=deepseek-chat and stream=true.
+	// It returns response from DeepSeek-V3 model.
 	StreamChatCompletionsChat(ctx context.Context, chatReq *request.ChatCompletionsRequest) (response.StreamReader, error)
+
+	// StreamChatCompletionsChat calls chat api with model=deepseek-reasoner and stream=true.
+	// It returns response from DeepSeek-R1 model.
 	StreamChatCompletionsReasoner(ctx context.Context, chatReq *request.ChatCompletionsRequest) (response.StreamReader, error)
 
+	// PingChatCompletions is a ping to check go deepseek client is working fine.
 	PingChatCompletions(ctx context.Context, inputMessage string) (outputMessge string, err error)
 }
 
+// NewClient creates deeseek client with given api key.
 func NewClient(apiKey string) (Client, error) {
 	config := config.Config{
 		ApiKey:         apiKey,
@@ -34,6 +46,7 @@ func NewClient(apiKey string) (Client, error) {
 	return NewClientWithConfig(config)
 }
 
+// NewClient creates deeseek client with given client config.
 func NewClientWithConfig(config config.Config) (Client, error) {
 	return client.NewClient(config)
 }

request/request.go

@@ -12,6 +12,7 @@ const (
 	ResponseFormatJsonObject = "json_object"
 )
 
+// ChatCompletionsRequest is request payload for `POST /chat/completions` API.
 type ChatCompletionsRequest struct {
 	Messages         []*Message      `json:"messages"`
 	Model            string          `json:"model"`

response/response.go

@@ -1,5 +1,6 @@
 package response
 
+// ChatCompletionsResponse is response payload for `POST /chat/completions` API.
 type ChatCompletionsResponse struct {
 	Id                string    `json:"id"`
 	Choices           []*Choice `json:"choices"`