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feat: upload btc execution metadata to ipfs (#339)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| package uploader | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "encoding/json" | ||
| "errors" | ||
| "io" | ||
| "mime/multipart" | ||
| "net/http" | ||
| "time" | ||
|
|
||
| "github.com/rs/zerolog/log" | ||
|
|
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| "github.com/ChainSafe/sygma-relayer/config/relayer" | ||
| "github.com/cenkalti/backoff/v4" | ||
| ) | ||
|
|
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| type Uploader interface { | ||
| Upload(proposals []map[string]interface{}) (string, error) | ||
| } | ||
|
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| type IPFSUploader struct { | ||
| config relayer.UploaderConfig | ||
| } | ||
|
|
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| func NewIPFSUploader(config relayer.UploaderConfig) *IPFSUploader { | ||
| return &IPFSUploader{config: config} | ||
| } | ||
|
|
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| type IPFSResponse struct { | ||
| IpfsHash string `json:"IpfsHash"` | ||
| } | ||
|
|
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| func (i *IPFSUploader) Upload(dataToUpload []map[string]interface{}) (string, error) { | ||
| jsonData, err := json.Marshal(dataToUpload) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| body := new(bytes.Buffer) | ||
| writer := multipart.NewWriter(body) | ||
| part, err := writer.CreateFormFile("file", "metadata.json") | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| _, err = part.Write(jsonData) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| writer.Close() | ||
|
|
||
| req, err := http.NewRequest("POST", i.config.URL, body) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
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| req.Header.Add("Authorization", "Bearer "+i.config.AuthToken) | ||
| req.Header.Add("Content-Type", writer.FormDataContentType()) | ||
|
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| var ipfsResponse IPFSResponse | ||
|
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| // Define the operation to be retried | ||
| operation := func() error { | ||
| return i.performRequest(req, &ipfsResponse) | ||
| } | ||
| expBackoff := backoff.NewExponentialBackOff() | ||
| expBackoff.MaxElapsedTime = i.config.MaxElapsedTime | ||
|
|
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| notify := func(err error, duration time.Duration) { | ||
| log.Warn().Err(err).Msg("Unable to upload metadata to ipfs") | ||
| } | ||
|
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| err = backoff.RetryNotify(operation, backoff.WithMaxRetries(expBackoff, i.config.MaxRetries), notify) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
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| return ipfsResponse.IpfsHash, nil | ||
| } | ||
|
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| func (i *IPFSUploader) performRequest(req *http.Request, ipfsResponse *IPFSResponse) error { | ||
| client := &http.Client{} | ||
| resp, err := client.Do(req) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer resp.Body.Close() | ||
|
|
||
| if resp.StatusCode != 200 { | ||
| return errors.New("received non-200 status code") | ||
| } | ||
|
|
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| respBody, err := io.ReadAll(resp.Body) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| if err := json.Unmarshal(respBody, &ipfsResponse); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } |
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