8f1a15b279
License: MIT Signed-off-by: Hector Sanjuan <code@hector.link>
900 lines
19 KiB
Go
900 lines
19 KiB
Go
// Package rest implements an IPFS Cluster API component. It provides
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// a REST-ish API to interact with Cluster.
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//
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// rest exposes the HTTP API in two ways. The first is through a regular
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// HTTP(s) listener. The second is by tunneling HTTP through a libp2p
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// stream (thus getting an encrypted channel without the need to setup
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// TLS). Both ways can be used at the same time, or disabled.
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package rest
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import (
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"context"
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"crypto/tls"
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"encoding/json"
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"errors"
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"fmt"
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"math/rand"
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"net"
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"net/http"
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"strconv"
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"strings"
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"sync"
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"time"
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"github.com/ipfs/ipfs-cluster/adder"
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"github.com/ipfs/ipfs-cluster/adder/local"
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"github.com/ipfs/ipfs-cluster/adder/sharding"
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types "github.com/ipfs/ipfs-cluster/api"
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mux "github.com/gorilla/mux"
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rpc "github.com/hsanjuan/go-libp2p-gorpc"
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gostream "github.com/hsanjuan/go-libp2p-gostream"
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p2phttp "github.com/hsanjuan/go-libp2p-http"
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cid "github.com/ipfs/go-cid"
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logging "github.com/ipfs/go-log"
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libp2p "github.com/libp2p/go-libp2p"
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host "github.com/libp2p/go-libp2p-host"
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peer "github.com/libp2p/go-libp2p-peer"
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ma "github.com/multiformats/go-multiaddr"
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manet "github.com/multiformats/go-multiaddr-net"
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)
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func init() {
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rand.Seed(time.Now().UnixNano())
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}
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var logger = logging.Logger("restapi")
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// Common errors
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var (
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// ErrNoEndpointEnabled is returned when the API is created but
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// no HTTPListenAddr, nor libp2p configuration fields, nor a libp2p
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// Host are provided.
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ErrNoEndpointsEnabled = errors.New("neither the libp2p nor the HTTP endpoints are enabled")
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// ErrHTTPEndpointNotEnabled is returned when trying to perform
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// operations that rely on the HTTPEndpoint but it is disabled.
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ErrHTTPEndpointNotEnabled = errors.New("the HTTP endpoint is not enabled")
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)
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// For making a random sharding ID
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var letterRunes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
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// API implements an API and aims to provides
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// a RESTful HTTP API for Cluster.
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type API struct {
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ctx context.Context
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cancel func()
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config *Config
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rpcClient *rpc.Client
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rpcReady chan struct{}
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router *mux.Router
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server *http.Server
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host host.Host
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httpListener net.Listener
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libp2pListener net.Listener
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shutdownLock sync.Mutex
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shutdown bool
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wg sync.WaitGroup
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}
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type route struct {
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Name string
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Method string
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Pattern string
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HandlerFunc http.HandlerFunc
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}
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type peerAddBody struct {
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PeerMultiaddr string `json:"peer_multiaddress"`
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}
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// NewAPI creates a new REST API component with the given configuration.
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func NewAPI(cfg *Config) (*API, error) {
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return NewAPIWithHost(cfg, nil)
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}
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// NewAPIWithHost creates a new REST API component and enables
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// the libp2p-http endpoint using the given Host, if not nil.
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func NewAPIWithHost(cfg *Config, h host.Host) (*API, error) {
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err := cfg.Validate()
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if err != nil {
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return nil, err
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}
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router := mux.NewRouter().StrictSlash(true)
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s := &http.Server{
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ReadTimeout: cfg.ReadTimeout,
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ReadHeaderTimeout: cfg.ReadHeaderTimeout,
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WriteTimeout: cfg.WriteTimeout,
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IdleTimeout: cfg.IdleTimeout,
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Handler: router,
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}
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s.SetKeepAlivesEnabled(true) // A reminder that this can be changed
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ctx, cancel := context.WithCancel(context.Background())
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api := &API{
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ctx: ctx,
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cancel: cancel,
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config: cfg,
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server: s,
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host: h,
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rpcReady: make(chan struct{}, 2),
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}
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api.addRoutes(router)
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// Set up api.httpListener if enabled
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err = api.setupHTTP()
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if err != nil {
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return nil, err
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}
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// Set up api.libp2pListener if enabled
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err = api.setupLibp2p(ctx)
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if err != nil {
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return nil, err
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}
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if api.httpListener == nil && api.libp2pListener == nil {
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return nil, ErrNoEndpointsEnabled
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}
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api.run()
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return api, nil
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}
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func (api *API) setupHTTP() error {
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if api.config.HTTPListenAddr == nil {
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return nil
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}
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n, addr, err := manet.DialArgs(api.config.HTTPListenAddr)
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if err != nil {
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return err
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}
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var l net.Listener
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if api.config.TLS != nil {
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l, err = tls.Listen(n, addr, api.config.TLS)
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} else {
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l, err = net.Listen(n, addr)
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}
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if err != nil {
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return err
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}
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api.httpListener = l
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return nil
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}
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func (api *API) setupLibp2p(ctx context.Context) error {
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// Make new host. Override any provided existing one
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// if we have config for a custom one.
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if api.config.Libp2pListenAddr != nil {
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h, err := libp2p.New(
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ctx,
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libp2p.Identity(api.config.PrivateKey),
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libp2p.ListenAddrs([]ma.Multiaddr{api.config.Libp2pListenAddr}...),
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)
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if err != nil {
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return err
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}
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api.host = h
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}
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if api.host == nil {
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return nil
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}
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l, err := gostream.Listen(api.host, p2phttp.P2PProtocol)
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if err != nil {
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return err
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}
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api.libp2pListener = l
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return nil
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}
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// HTTPAddress returns the HTTP(s) listening address
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// in host:port format. Useful when configured to start
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// on a random port (0). Returns error when the HTTP endpoint
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// is not enabled.
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func (api *API) HTTPAddress() (string, error) {
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if api.httpListener == nil {
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return "", ErrHTTPEndpointNotEnabled
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}
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return api.httpListener.Addr().String(), nil
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}
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// Host returns the libp2p Host used by the API, if any.
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// The result is either the host provided during initialization,
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// a default Host created with options from the configuration object,
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// or nil.
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func (api *API) Host() host.Host {
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return api.host
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}
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func (api *API) addRoutes(router *mux.Router) {
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for _, route := range api.routes() {
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if api.config.BasicAuthCreds != nil {
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route.HandlerFunc = basicAuth(route.HandlerFunc, api.config.BasicAuthCreds)
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}
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router.
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Methods(route.Method).
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Path(route.Pattern).
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Name(route.Name).
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Handler(route.HandlerFunc)
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}
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api.router = router
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}
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func basicAuth(h http.HandlerFunc, credentials map[string]string) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("WWW-Authenticate", `Basic realm="Restricted"`)
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username, password, ok := r.BasicAuth()
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if !ok {
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resp, err := unauthorizedResp()
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if err != nil {
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logger.Error(err)
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return
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}
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http.Error(w, resp, 401)
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return
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}
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authorized := false
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for u, p := range credentials {
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if u == username && p == password {
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authorized = true
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}
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}
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if !authorized {
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resp, err := unauthorizedResp()
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if err != nil {
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logger.Error(err)
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return
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}
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http.Error(w, resp, 401)
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return
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}
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h.ServeHTTP(w, r)
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}
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}
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func unauthorizedResp() (string, error) {
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apiError := types.Error{
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Code: 401,
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Message: "Unauthorized",
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}
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resp, err := json.Marshal(apiError)
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return string(resp), err
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}
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func (api *API) routes() []route {
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return []route{
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{
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"ID",
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"GET",
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"/id",
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api.idHandler,
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},
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{
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"Version",
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"GET",
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"/version",
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api.versionHandler,
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},
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{
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"Peers",
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"GET",
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"/peers",
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api.peerListHandler,
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},
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{
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"PeerAdd",
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"POST",
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"/peers",
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api.peerAddHandler,
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},
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{
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"PeerRemove",
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"DELETE",
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"/peers/{peer}",
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api.peerRemoveHandler,
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},
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{
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"Allocations",
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"GET",
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"/allocations",
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api.allocationsHandler,
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},
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{
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"Allocation",
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"GET",
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"/allocations/{hash}",
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api.allocationHandler,
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},
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{
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"Allocate",
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"POST",
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"/allocations",
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api.addHandler,
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},
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{
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"StatusAll",
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"GET",
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"/pins",
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api.statusAllHandler,
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},
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{
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"SyncAll",
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"POST",
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"/pins/sync",
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api.syncAllHandler,
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},
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{
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"RecoverAll",
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"POST",
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"/pins/recover",
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api.recoverAllHandler,
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},
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{
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"Status",
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"GET",
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"/pins/{hash}",
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api.statusHandler,
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},
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{
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"Pin",
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"POST",
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"/pins/{hash}",
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api.pinHandler,
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},
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{
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"Unpin",
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"DELETE",
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"/pins/{hash}",
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api.unpinHandler,
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},
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{
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"Sync",
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"POST",
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"/pins/{hash}/sync",
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api.syncHandler,
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},
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{
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"Recover",
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"POST",
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"/pins/{hash}/recover",
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api.recoverHandler,
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},
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{
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"ConnectionGraph",
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"GET",
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"/health/graph",
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api.graphHandler,
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},
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}
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}
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func (api *API) run() {
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if api.httpListener != nil {
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api.wg.Add(1)
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go api.runHTTPServer()
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}
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if api.libp2pListener != nil {
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api.wg.Add(1)
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go api.runLibp2pServer()
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}
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}
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// runs in goroutine from run()
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func (api *API) runHTTPServer() {
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defer api.wg.Done()
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<-api.rpcReady
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logger.Infof("REST API (HTTP): %s", api.config.HTTPListenAddr)
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err := api.server.Serve(api.httpListener)
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if err != nil && !strings.Contains(err.Error(), "closed network connection") {
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logger.Error(err)
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}
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}
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// runs in goroutine from run()
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func (api *API) runLibp2pServer() {
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defer api.wg.Done()
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<-api.rpcReady
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listenMsg := ""
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for _, a := range api.host.Addrs() {
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listenMsg += fmt.Sprintf(" %s/ipfs/%s\n", a, api.host.ID().Pretty())
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}
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logger.Infof("REST API (libp2p-http): ENABLED. Listening on:\n%s\n", listenMsg)
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err := api.server.Serve(api.libp2pListener)
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if err != nil && !strings.Contains(err.Error(), "context canceled") {
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logger.Error(err)
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}
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}
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// Shutdown stops any API listeners.
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func (api *API) Shutdown() error {
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api.shutdownLock.Lock()
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defer api.shutdownLock.Unlock()
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if api.shutdown {
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logger.Debug("already shutdown")
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return nil
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}
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logger.Info("stopping Cluster API")
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api.cancel()
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close(api.rpcReady)
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// Cancel any outstanding ops
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api.server.SetKeepAlivesEnabled(false)
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if api.httpListener != nil {
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api.httpListener.Close()
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}
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if api.libp2pListener != nil {
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api.libp2pListener.Close()
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}
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// This means we created the host
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if api.config.Libp2pListenAddr != nil {
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api.host.Close()
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}
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api.wg.Wait()
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api.shutdown = true
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return nil
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}
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// SetClient makes the component ready to perform RPC
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// requests.
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func (api *API) SetClient(c *rpc.Client) {
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api.rpcClient = c
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// One notification for http server and one for libp2p server.
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api.rpcReady <- struct{}{}
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api.rpcReady <- struct{}{}
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}
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func (api *API) idHandler(w http.ResponseWriter, r *http.Request) {
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idSerial := types.IDSerial{}
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err := api.rpcClient.Call("",
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"Cluster",
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"ID",
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struct{}{},
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&idSerial)
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sendResponse(w, err, idSerial)
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}
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func (api *API) versionHandler(w http.ResponseWriter, r *http.Request) {
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var v types.Version
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err := api.rpcClient.Call("",
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"Cluster",
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"Version",
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struct{}{},
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&v)
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sendResponse(w, err, v)
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}
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func (api *API) graphHandler(w http.ResponseWriter, r *http.Request) {
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var graph types.ConnectGraphSerial
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err := api.rpcClient.Call("",
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"Cluster",
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"ConnectGraph",
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struct{}{},
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&graph)
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sendResponse(w, err, graph)
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}
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func (api *API) addHandler(w http.ResponseWriter, r *http.Request) {
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reader, err := r.MultipartReader()
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if err != nil {
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sendErrorResponse(w, 400, err.Error())
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return
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}
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params, err := types.AddParamsFromQuery(r.URL.Query())
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if err != nil {
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sendErrorResponse(w, 400, err.Error())
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return
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}
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var add adder.Adder
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if params.Shard {
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add = sharding.New(api.rpcClient)
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} else {
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add = local.New(api.rpcClient)
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}
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c, err := add.FromMultipart(api.ctx, reader, params)
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_ = c
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// TODO: progress?
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// TODO: Return root?
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sendEmptyResponse(w, err)
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}
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func (api *API) peerListHandler(w http.ResponseWriter, r *http.Request) {
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var peersSerial []types.IDSerial
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err := api.rpcClient.Call("",
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"Cluster",
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"Peers",
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struct{}{},
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&peersSerial)
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sendResponse(w, err, peersSerial)
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}
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func (api *API) peerAddHandler(w http.ResponseWriter, r *http.Request) {
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dec := json.NewDecoder(r.Body)
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defer r.Body.Close()
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var addInfo peerAddBody
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err := dec.Decode(&addInfo)
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if err != nil {
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sendErrorResponse(w, 400, "error decoding request body")
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return
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}
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mAddr, err := ma.NewMultiaddr(addInfo.PeerMultiaddr)
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if err != nil {
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sendErrorResponse(w, 400, "error decoding peer_multiaddress")
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return
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}
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var ids types.IDSerial
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err = api.rpcClient.Call("",
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"Cluster",
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"PeerAdd",
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types.MultiaddrToSerial(mAddr),
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&ids)
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sendResponse(w, err, ids)
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}
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func (api *API) peerRemoveHandler(w http.ResponseWriter, r *http.Request) {
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if p := parsePidOrError(w, r); p != "" {
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err := api.rpcClient.Call("",
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"Cluster",
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"PeerRemove",
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p,
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&struct{}{})
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sendEmptyResponse(w, err)
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}
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}
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func (api *API) pinHandler(w http.ResponseWriter, r *http.Request) {
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if ps := parseCidOrError(w, r); ps.Cid != "" {
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logger.Debugf("rest api pinHandler: %s", ps.Cid)
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err := api.rpcClient.Call("",
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"Cluster",
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"Pin",
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ps,
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&struct{}{})
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sendAcceptedResponse(w, err)
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logger.Debug("rest api pinHandler done")
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}
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}
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func (api *API) unpinHandler(w http.ResponseWriter, r *http.Request) {
|
|
if ps := parseCidOrError(w, r); ps.Cid != "" {
|
|
logger.Debugf("rest api unpinHandler: %s", ps.Cid)
|
|
err := api.rpcClient.Call("",
|
|
"Cluster",
|
|
"Unpin",
|
|
ps,
|
|
&struct{}{})
|
|
sendAcceptedResponse(w, err)
|
|
logger.Debug("rest api unpinHandler done")
|
|
}
|
|
}
|
|
|
|
// filterOutPin returns true if the given pin should be filtered out according
|
|
// to the input filter type
|
|
func (api *API) filterOutPin(filter types.PinType, pin types.Pin) bool {
|
|
if filter == types.AllType {
|
|
return false
|
|
}
|
|
return pin.Type != filter
|
|
}
|
|
|
|
func (api *API) allocationsHandler(w http.ResponseWriter, r *http.Request) {
|
|
queryValues := r.URL.Query()
|
|
pintype := queryValues.Get("pintype")
|
|
filter := types.PinTypeFromString(pintype)
|
|
var pins []types.PinSerial
|
|
err := api.rpcClient.Call(
|
|
"",
|
|
"Cluster",
|
|
"Pins",
|
|
struct{}{},
|
|
&pins,
|
|
)
|
|
outPins := make([]types.PinSerial, 0)
|
|
for _, pinS := range pins {
|
|
if !api.filterOutPin(filter, pinS.ToPin()) {
|
|
// add this pin to output
|
|
outPins = append(outPins, pinS)
|
|
}
|
|
}
|
|
sendResponse(w, err, outPins)
|
|
}
|
|
|
|
func (api *API) allocationHandler(w http.ResponseWriter, r *http.Request) {
|
|
if ps := parseCidOrError(w, r); ps.Cid != "" {
|
|
var pin types.PinSerial
|
|
err := api.rpcClient.Call("",
|
|
"Cluster",
|
|
"PinGet",
|
|
ps,
|
|
&pin)
|
|
if err != nil { // errors here are 404s
|
|
sendErrorResponse(w, 404, err.Error())
|
|
return
|
|
}
|
|
sendJSONResponse(w, 200, pin)
|
|
}
|
|
}
|
|
|
|
func (api *API) statusAllHandler(w http.ResponseWriter, r *http.Request) {
|
|
queryValues := r.URL.Query()
|
|
local := queryValues.Get("local")
|
|
|
|
if local == "true" {
|
|
var pinInfos []types.PinInfoSerial
|
|
err := api.rpcClient.Call("",
|
|
"Cluster",
|
|
"StatusAllLocal",
|
|
struct{}{},
|
|
&pinInfos)
|
|
sendResponse(w, err, pinInfosToGlobal(pinInfos))
|
|
} else {
|
|
var pinInfos []types.GlobalPinInfoSerial
|
|
err := api.rpcClient.Call("",
|
|
"Cluster",
|
|
"StatusAll",
|
|
struct{}{},
|
|
&pinInfos)
|
|
sendResponse(w, err, pinInfos)
|
|
}
|
|
}
|
|
|
|
func (api *API) statusHandler(w http.ResponseWriter, r *http.Request) {
|
|
queryValues := r.URL.Query()
|
|
local := queryValues.Get("local")
|
|
|
|
if ps := parseCidOrError(w, r); ps.Cid != "" {
|
|
if local == "true" {
|
|
var pinInfo types.PinInfoSerial
|
|
err := api.rpcClient.Call("",
|
|
"Cluster",
|
|
"StatusLocal",
|
|
ps,
|
|
&pinInfo)
|
|
sendResponse(w, err, pinInfoToGlobal(pinInfo))
|
|
} else {
|
|
var pinInfo types.GlobalPinInfoSerial
|
|
err := api.rpcClient.Call("",
|
|
"Cluster",
|
|
"Status",
|
|
ps,
|
|
&pinInfo)
|
|
sendResponse(w, err, pinInfo)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (api *API) syncAllHandler(w http.ResponseWriter, r *http.Request) {
|
|
queryValues := r.URL.Query()
|
|
local := queryValues.Get("local")
|
|
|
|
if local == "true" {
|
|
var pinInfos []types.PinInfoSerial
|
|
err := api.rpcClient.Call("",
|
|
"Cluster",
|
|
"SyncAllLocal",
|
|
struct{}{},
|
|
&pinInfos)
|
|
sendResponse(w, err, pinInfosToGlobal(pinInfos))
|
|
} else {
|
|
var pinInfos []types.GlobalPinInfoSerial
|
|
err := api.rpcClient.Call("",
|
|
"Cluster",
|
|
"SyncAll",
|
|
struct{}{},
|
|
&pinInfos)
|
|
sendResponse(w, err, pinInfos)
|
|
}
|
|
}
|
|
|
|
func (api *API) syncHandler(w http.ResponseWriter, r *http.Request) {
|
|
queryValues := r.URL.Query()
|
|
local := queryValues.Get("local")
|
|
|
|
if ps := parseCidOrError(w, r); ps.Cid != "" {
|
|
if local == "true" {
|
|
var pinInfo types.PinInfoSerial
|
|
err := api.rpcClient.Call("",
|
|
"Cluster",
|
|
"SyncLocal",
|
|
ps,
|
|
&pinInfo)
|
|
sendResponse(w, err, pinInfoToGlobal(pinInfo))
|
|
} else {
|
|
var pinInfo types.GlobalPinInfoSerial
|
|
err := api.rpcClient.Call("",
|
|
"Cluster",
|
|
"Sync",
|
|
ps,
|
|
&pinInfo)
|
|
sendResponse(w, err, pinInfo)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (api *API) recoverAllHandler(w http.ResponseWriter, r *http.Request) {
|
|
queryValues := r.URL.Query()
|
|
local := queryValues.Get("local")
|
|
if local == "true" {
|
|
var pinInfos []types.PinInfoSerial
|
|
err := api.rpcClient.Call("",
|
|
"Cluster",
|
|
"RecoverAllLocal",
|
|
struct{}{},
|
|
&pinInfos)
|
|
sendResponse(w, err, pinInfosToGlobal(pinInfos))
|
|
} else {
|
|
sendErrorResponse(w, 400, "only requests with parameter local=true are supported")
|
|
}
|
|
}
|
|
|
|
func (api *API) recoverHandler(w http.ResponseWriter, r *http.Request) {
|
|
queryValues := r.URL.Query()
|
|
local := queryValues.Get("local")
|
|
|
|
if ps := parseCidOrError(w, r); ps.Cid != "" {
|
|
if local == "true" {
|
|
var pinInfo types.PinInfoSerial
|
|
err := api.rpcClient.Call("",
|
|
"Cluster",
|
|
"RecoverLocal",
|
|
ps,
|
|
&pinInfo)
|
|
sendResponse(w, err, pinInfoToGlobal(pinInfo))
|
|
} else {
|
|
var pinInfo types.GlobalPinInfoSerial
|
|
err := api.rpcClient.Call("",
|
|
"Cluster",
|
|
"Recover",
|
|
ps,
|
|
&pinInfo)
|
|
sendResponse(w, err, pinInfo)
|
|
}
|
|
}
|
|
}
|
|
|
|
func parseCidOrError(w http.ResponseWriter, r *http.Request) types.PinSerial {
|
|
vars := mux.Vars(r)
|
|
hash := vars["hash"]
|
|
|
|
_, err := cid.Decode(hash)
|
|
if err != nil {
|
|
sendErrorResponse(w, 400, "error decoding Cid: "+err.Error())
|
|
return types.PinSerial{Cid: ""}
|
|
}
|
|
|
|
pin := types.PinSerial{
|
|
Cid: hash,
|
|
Type: int(types.DataType),
|
|
}
|
|
|
|
queryValues := r.URL.Query()
|
|
name := queryValues.Get("name")
|
|
pin.Name = name
|
|
pin.MaxDepth = -1 // For now, all pins are recursive
|
|
rplStr := queryValues.Get("replication_factor")
|
|
rplStrMin := queryValues.Get("replication_factor_min")
|
|
rplStrMax := queryValues.Get("replication_factor_max")
|
|
if rplStr != "" { // override
|
|
rplStrMin = rplStr
|
|
rplStrMax = rplStr
|
|
}
|
|
if rpl, err := strconv.Atoi(rplStrMin); err == nil {
|
|
pin.ReplicationFactorMin = rpl
|
|
}
|
|
if rpl, err := strconv.Atoi(rplStrMax); err == nil {
|
|
pin.ReplicationFactorMax = rpl
|
|
}
|
|
|
|
return pin
|
|
}
|
|
|
|
func parsePidOrError(w http.ResponseWriter, r *http.Request) peer.ID {
|
|
vars := mux.Vars(r)
|
|
idStr := vars["peer"]
|
|
pid, err := peer.IDB58Decode(idStr)
|
|
if err != nil {
|
|
sendErrorResponse(w, 400, "error decoding Peer ID: "+err.Error())
|
|
return ""
|
|
}
|
|
return pid
|
|
}
|
|
|
|
func pinInfoToGlobal(pInfo types.PinInfoSerial) types.GlobalPinInfoSerial {
|
|
return types.GlobalPinInfoSerial{
|
|
Cid: pInfo.Cid,
|
|
PeerMap: map[string]types.PinInfoSerial{
|
|
pInfo.Peer: pInfo,
|
|
},
|
|
}
|
|
}
|
|
|
|
func pinInfosToGlobal(pInfos []types.PinInfoSerial) []types.GlobalPinInfoSerial {
|
|
gPInfos := make([]types.GlobalPinInfoSerial, len(pInfos), len(pInfos))
|
|
for i, p := range pInfos {
|
|
gPInfos[i] = pinInfoToGlobal(p)
|
|
}
|
|
return gPInfos
|
|
}
|
|
|
|
func sendResponse(w http.ResponseWriter, rpcErr error, resp interface{}) {
|
|
if checkRPCErr(w, rpcErr) {
|
|
sendJSONResponse(w, 200, resp)
|
|
}
|
|
}
|
|
|
|
// checkRPCErr takes care of returning standard error responses if we
|
|
// pass an error to it. It returns true when everythings OK (no error
|
|
// was handled), or false otherwise.
|
|
func checkRPCErr(w http.ResponseWriter, err error) bool {
|
|
if err != nil {
|
|
sendErrorResponse(w, 500, err.Error())
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
|
|
func sendEmptyResponse(w http.ResponseWriter, rpcErr error) {
|
|
if checkRPCErr(w, rpcErr) {
|
|
w.WriteHeader(http.StatusNoContent)
|
|
}
|
|
}
|
|
|
|
func sendAcceptedResponse(w http.ResponseWriter, rpcErr error) {
|
|
if checkRPCErr(w, rpcErr) {
|
|
w.WriteHeader(http.StatusAccepted)
|
|
}
|
|
}
|
|
|
|
func sendJSONResponse(w http.ResponseWriter, code int, resp interface{}) {
|
|
w.Header().Add("Content-Type", "application/json")
|
|
w.WriteHeader(code)
|
|
if err := json.NewEncoder(w).Encode(resp); err != nil {
|
|
panic(err)
|
|
}
|
|
}
|
|
|
|
func sendErrorResponse(w http.ResponseWriter, code int, msg string) {
|
|
errorResp := types.Error{
|
|
Code: code,
|
|
Message: msg,
|
|
}
|
|
logger.Errorf("sending error response: %d: %s", code, msg)
|
|
sendJSONResponse(w, code, errorResp)
|
|
}
|