added send message function.

channel.go

@@ -1,21 +1,54 @@
 package revoltgo
 
+import (
+	"encoding/json"
+)
+
 // Channel struct.
 type Channel struct {
 	Client *Client
 
-	Id                 string            `json:"_id"`
-	ChannelType        string            `json:"channel_type"`
-	UserId             string            `json:"user"`
-	Nonce              string            `json:"nonce"`
-	Active             bool              `json:"active"`
-	Recipients         []string          `json:"recipients"`
-	LastMessage        map[string]string `json:"last_message"`
-	Name               string            `json:"name"`
-	OwnerId            string            `json:"owner"`
-	Description        string            `json:"description"`
-	Icon               *Attachment       `json:"icon"`
-	DefaultPermissions int               `json:"default_permissions"`
-	RolePermissions    int               `json:"role_permissions"`
-	Permissions        int               `json:"permissions"`
+	Id                 string      `json:"_id"`
+	ChannelType        string      `json:"channel_type"`
+	UserId             string      `json:"user"`
+	Nonce              string      `json:"nonce"`
+	Active             bool        `json:"active"`
+	Recipients         []string    `json:"recipients"`
+	LastMessage        string      `json:"last_message"`
+	Name               string      `json:"name"`
+	OwnerId            string      `json:"owner"`
+	Description        string      `json:"description"`
+	Icon               *Attachment `json:"icon"`
+	DefaultPermissions int         `json:"default_permissions"`
+	RolePermissions    int         `json:"role_permissions"`
+	Permissions        int         `json:"permissions"`
+}
+
+// Send a message to the channel.
+func (c Channel) SendMessage(message *Message) (*Message, error) {
+	if message.Nonce == "" {
+		message.Nonce = genULID()
+	}
+
+	respMessage := &Message{}
+	msgData, err := json.Marshal(message)
+
+	if err != nil {
+		return respMessage, err
+	}
+
+	resp, err := c.Client.Request("POST", "/channels/"+c.Id+"/messages", msgData)
+
+	if err != nil {
+		return respMessage, err
+	}
+
+	err = json.Unmarshal(resp, respMessage)
+
+	if err != nil {
+		return respMessage, err
+	}
+
+	message.Client = c.Client
+	return message, nil
 }