105 lines
2.7 KiB
Go
105 lines
2.7 KiB
Go
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package parser
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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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"time"
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"go.uber.org/zap"
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)
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const DefaultTimeout = 10
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var (
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ErrCallEndpoint = errors.New("ERROR CALL ENPOINT")
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ErrNotFound = errors.New("NOT FOUND")
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ErrInternalError = errors.New("INTERNAL ERROR")
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ErrUnproceesableEntity = errors.New("UNPROCESSABLE")
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ErrBadRequest = errors.New("BAD REQUEST")
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)
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// ParseVaaResponse represent a parse vaa response.
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type ParseVaaResponse struct {
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ChainID uint16 `json:"chainId"`
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EmitterAddress string `json:"address"`
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Sequence string `json:"sequence"`
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AppID string `json:"appId"`
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Result interface{} `json:"result"`
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}
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// ParserVAAAPIClient parse vaa api client.
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type ParserVAAAPIClient struct {
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Client http.Client
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BaseURL string
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Logger *zap.Logger
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}
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// NewParserVAAAPIClient create new instances of ParserVAAAPIClient.
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func NewParserVAAAPIClient(timeout int64, baseURL string, logger *zap.Logger) (ParserVAAAPIClient, error) {
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if timeout == 0 {
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timeout = DefaultTimeout
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}
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if baseURL == "" {
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return ParserVAAAPIClient{}, errors.New("baseURL can not be empty")
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}
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return ParserVAAAPIClient{
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Client: http.Client{
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Timeout: time.Duration(timeout) * time.Second,
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},
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BaseURL: baseURL,
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Logger: logger,
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}, nil
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}
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type ParseData struct {
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PayloadID int `bson:"payloadid"`
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Fields interface{}
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}
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// ParseVaa invoke the endpoint to parse a VAA from the VAAParserAPI.
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func (c ParserVAAAPIClient) Parse(chainID uint16, address, sequence string, vaa []byte) (*ParseVaaResponse, error) {
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endpointUrl := fmt.Sprintf("%s/vaa/parser/%v/%s/%v", c.BaseURL, chainID,
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address, sequence)
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// create request body.
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payload := struct {
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Payload []byte `json:"payload"`
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}{
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Payload: vaa,
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}
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body, err := json.Marshal(payload)
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if err != nil {
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c.Logger.Error("error marshalling payload", zap.Error(err), zap.Uint16("chainID", chainID),
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zap.String("address", address), zap.String("sequence", sequence))
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return nil, err
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}
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response, err := c.Client.Post(endpointUrl, "application/json", bytes.NewBuffer(body))
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if err != nil {
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c.Logger.Error("error call parse vaa endpoint", zap.Error(err), zap.Uint16("chainID", chainID),
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zap.String("address", address), zap.String("sequence", sequence))
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return nil, ErrCallEndpoint
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}
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defer response.Body.Close()
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switch response.StatusCode {
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case http.StatusCreated:
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var parsedVAA ParseVaaResponse
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json.NewDecoder(response.Body).Decode(&parsedVAA)
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return &parsedVAA, nil
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case http.StatusNotFound:
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return nil, ErrNotFound
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case http.StatusBadRequest:
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return nil, ErrBadRequest
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case http.StatusUnprocessableEntity:
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return nil, ErrUnproceesableEntity
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default:
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return nil, ErrInternalError
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}
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}
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