117 lines
2.7 KiB
Go
117 lines
2.7 KiB
Go
// Copyright (C) 2022 Storj Labs, Inc.
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// See LICENSE for copying information.
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package storjscan
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import (
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"context"
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"encoding/json"
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"math/big"
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"net/http"
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"strconv"
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"time"
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"github.com/zeebo/errs"
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"storj.io/storj/private/blockchain"
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)
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var (
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// ClientErr is general purpose storjscan client error class.
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ClientErr = errs.Class("storjscan client")
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// ClientErrUnauthorized is unauthorized err storjscan client error class.
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ClientErrUnauthorized = errs.Class("storjscan client unauthorized")
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)
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// Header holds ethereum blockchain block header data.
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type Header struct {
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Hash blockchain.Hash
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Number int64
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Timestamp time.Time
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}
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// Payment holds storjscan payment data.
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type Payment struct {
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From blockchain.Address
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To blockchain.Address
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TokenValue *big.Int
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BlockHash blockchain.Hash
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BlockNumber int64
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Transaction blockchain.Hash
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LogIndex int
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Timestamp time.Time
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}
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// LatestPayments contains latest payments and latest chain block header.
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type LatestPayments struct {
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LatestBlock Header
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Payments []Payment
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}
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// Client is storjscan HTTP API client.
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type Client struct {
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endpoint string
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identifier string
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secret string
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http http.Client
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}
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// NewClient creates new storjscan API client.
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func NewClient(endpoint, identifier, secret string) *Client {
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return &Client{
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endpoint: endpoint,
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identifier: identifier,
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secret: secret,
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http: http.Client{},
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}
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}
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// Payments retrieves all payments after specified block for wallets associated with particular API key.
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func (client *Client) Payments(ctx context.Context, from int64) (_ LatestPayments, err error) {
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defer mon.Task()(&ctx)(&err)
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p := client.endpoint + "/api/v0/tokens/payments"
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req, err := http.NewRequestWithContext(ctx, http.MethodGet, p, nil)
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if err != nil {
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return LatestPayments{}, ClientErr.Wrap(err)
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}
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req.SetBasicAuth(client.identifier, client.secret)
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query := req.URL.Query()
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query.Set("from", strconv.FormatInt(from, 10))
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req.URL.RawQuery = query.Encode()
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resp, err := client.http.Do(req)
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if err != nil {
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return LatestPayments{}, ClientErr.Wrap(err)
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}
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defer func() {
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err = errs.Combine(err, ClientErr.Wrap(resp.Body.Close()))
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}()
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if resp.StatusCode != http.StatusOK {
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var data struct {
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Error string `json:"error"`
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}
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if err := json.NewDecoder(resp.Body).Decode(&data); err != nil {
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return LatestPayments{}, ClientErr.Wrap(err)
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}
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switch resp.StatusCode {
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case http.StatusUnauthorized:
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return LatestPayments{}, ClientErrUnauthorized.New("%s", data.Error)
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default:
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return LatestPayments{}, ClientErr.New("%s", data.Error)
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}
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}
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var payments LatestPayments
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if err := json.NewDecoder(resp.Body).Decode(&payments); err != nil {
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return LatestPayments{}, ClientErr.Wrap(err)
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}
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return payments, nil
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}
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