110 lines
2.0 KiB
Go
110 lines
2.0 KiB
Go
package sn
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"net/http"
|
|
"os"
|
|
)
|
|
|
|
type Client struct {
|
|
BaseUrl string
|
|
ApiUrl string
|
|
ApiKey string
|
|
MediaUrl string
|
|
}
|
|
|
|
func NewClient(options ...func(*Client)) *Client {
|
|
c := &Client{}
|
|
for _, o := range options {
|
|
o(c)
|
|
}
|
|
|
|
// set defaults
|
|
var ok bool
|
|
if c.BaseUrl == "" {
|
|
c.BaseUrl, ok = os.LookupEnv("SN_BASE_URL")
|
|
if !ok {
|
|
c.BaseUrl = "https://stacker.news"
|
|
}
|
|
}
|
|
if c.ApiKey == "" {
|
|
c.ApiKey = os.Getenv("SN_API_KEY")
|
|
}
|
|
if c.MediaUrl == "" {
|
|
c.MediaUrl, ok = os.LookupEnv("SN_MEDIA_URL")
|
|
if !ok {
|
|
c.MediaUrl = "https://m.stacker.news"
|
|
}
|
|
}
|
|
c.ApiUrl = fmt.Sprintf("%s/api/graphql", c.BaseUrl)
|
|
|
|
return c
|
|
}
|
|
|
|
func WithApiKey(apiKey string) func(*Client) {
|
|
return func(c *Client) {
|
|
c.ApiKey = apiKey
|
|
}
|
|
}
|
|
|
|
func WithBaseUrl(baseUrl string) func(*Client) {
|
|
return func(c *Client) {
|
|
c.BaseUrl = baseUrl
|
|
}
|
|
}
|
|
|
|
func WithMediaUrl(mediaUrl string) func(*Client) {
|
|
return func(c *Client) {
|
|
c.MediaUrl = mediaUrl
|
|
}
|
|
}
|
|
|
|
type GqlBody struct {
|
|
Query string `json:"query"`
|
|
Variables map[string]interface{} `json:"variables,omitempty"`
|
|
}
|
|
|
|
type GqlError struct {
|
|
Message string `json:"message"`
|
|
}
|
|
|
|
func (c *Client) callApi(body GqlBody) (*http.Response, error) {
|
|
bodyJSON, err := json.Marshal(body)
|
|
if err != nil {
|
|
err = fmt.Errorf("error encoding SN payload: %w", err)
|
|
return nil, err
|
|
}
|
|
|
|
req, err := http.NewRequest("POST", c.ApiUrl, bytes.NewBuffer(bodyJSON))
|
|
if err != nil {
|
|
err = fmt.Errorf("error preparing SN request: %w", err)
|
|
return nil, err
|
|
}
|
|
req.Header.Set("Content-Type", "application/json")
|
|
if c.ApiKey != "" {
|
|
req.Header.Set("X-Api-Key", c.ApiKey)
|
|
}
|
|
|
|
client := http.DefaultClient
|
|
resp, err := client.Do(req)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return resp, nil
|
|
}
|
|
|
|
func (c *Client) checkForErrors(err []GqlError) error {
|
|
if len(err) > 0 {
|
|
errMsg, marshalErr := json.Marshal(err)
|
|
if marshalErr != nil {
|
|
return marshalErr
|
|
}
|
|
return errors.New(string(errMsg))
|
|
}
|
|
return nil
|
|
}
|