79 lines
1.5 KiB
Go
79 lines
1.5 KiB
Go
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package sn
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import (
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"bytes"
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"encoding/json"
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"errors"
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"fmt"
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"net/http"
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)
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type ClientOptions struct {
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BaseUrl string
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ApiKey string
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}
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type Client struct {
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BaseUrl string
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ApiUrl string
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ApiKey string
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}
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func NewClient(options *ClientOptions) *Client {
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if options.BaseUrl == "" {
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options.BaseUrl = "https://stacker.news"
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}
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return &Client{
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BaseUrl: options.BaseUrl,
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ApiUrl: fmt.Sprintf("%s/api/graphql", options.BaseUrl),
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ApiKey: options.ApiKey,
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}
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}
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type GqlBody struct {
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Query string `json:"query"`
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Variables map[string]interface{} `json:"variables,omitempty"`
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}
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type GqlError struct {
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Message string `json:"message"`
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}
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func (c *Client) callApi(body GqlBody) (*http.Response, error) {
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bodyJSON, err := json.Marshal(body)
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if err != nil {
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err = fmt.Errorf("error encoding SN payload: %w", err)
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return nil, err
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}
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req, err := http.NewRequest("POST", c.ApiUrl, bytes.NewBuffer(bodyJSON))
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if err != nil {
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err = fmt.Errorf("error preparing SN request: %w", err)
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return nil, err
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}
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req.Header.Set("Content-Type", "application/json")
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if c.ApiKey != "" {
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req.Header.Set("X-Api-Key", c.ApiKey)
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}
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client := http.DefaultClient
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resp, err := client.Do(req)
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if err != nil {
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return nil, err
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}
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return resp, nil
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}
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func (c *Client) checkForErrors(err []GqlError) error {
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if len(err) > 0 {
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errMsg, marshalErr := json.Marshal(err)
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if marshalErr != nil {
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return marshalErr
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}
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return errors.New(string(errMsg))
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}
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return nil
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}
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