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sportboard.twirp.go
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sportboard.twirp.go
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// Code generated by protoc-gen-twirp v8.1.3, DO NOT EDIT.
// source: sportboard/sportboard.proto
package sportboard
import context "context"
import fmt "fmt"
import http "net/http"
import io "io"
import json "encoding/json"
import strconv "strconv"
import strings "strings"
import protojson "google.golang.org/protobuf/encoding/protojson"
import proto "google.golang.org/protobuf/proto"
import twirp "github.com/twitchtv/twirp"
import ctxsetters "github.com/twitchtv/twirp/ctxsetters"
import google_protobuf "github.com/golang/protobuf/ptypes/empty"
import bytes "bytes"
import errors "errors"
import path "path"
import url "net/url"
// Version compatibility assertion.
// If the constant is not defined in the package, that likely means
// the package needs to be updated to work with this generated code.
// See https://twitchtv.github.io/twirp/docs/version_matrix.html
const _ = twirp.TwirpPackageMinVersion_8_1_0
// ===============
// Sport Interface
// ===============
type Sport interface {
SetStatus(context.Context, *SetStatusReq) (*google_protobuf.Empty, error)
GetStatus(context.Context, *google_protobuf.Empty) (*StatusResp, error)
}
// =====================
// Sport Protobuf Client
// =====================
type sportProtobufClient struct {
client HTTPClient
urls [2]string
interceptor twirp.Interceptor
opts twirp.ClientOptions
}
// NewSportProtobufClient creates a Protobuf client that implements the Sport interface.
// It communicates using Protobuf and can be configured with a custom HTTPClient.
func NewSportProtobufClient(baseURL string, client HTTPClient, opts ...twirp.ClientOption) Sport {
if c, ok := client.(*http.Client); ok {
client = withoutRedirects(c)
}
clientOpts := twirp.ClientOptions{}
for _, o := range opts {
o(&clientOpts)
}
// Using ReadOpt allows backwards and forwards compatibility with new options in the future
literalURLs := false
_ = clientOpts.ReadOpt("literalURLs", &literalURLs)
var pathPrefix string
if ok := clientOpts.ReadOpt("pathPrefix", &pathPrefix); !ok {
pathPrefix = "/twirp" // default prefix
}
// Build method URLs: <baseURL>[<prefix>]/<package>.<Service>/<Method>
serviceURL := sanitizeBaseURL(baseURL)
serviceURL += baseServicePath(pathPrefix, "sport.v1", "Sport")
urls := [2]string{
serviceURL + "SetStatus",
serviceURL + "GetStatus",
}
return &sportProtobufClient{
client: client,
urls: urls,
interceptor: twirp.ChainInterceptors(clientOpts.Interceptors...),
opts: clientOpts,
}
}
func (c *sportProtobufClient) SetStatus(ctx context.Context, in *SetStatusReq) (*google_protobuf.Empty, error) {
ctx = ctxsetters.WithPackageName(ctx, "sport.v1")
ctx = ctxsetters.WithServiceName(ctx, "Sport")
ctx = ctxsetters.WithMethodName(ctx, "SetStatus")
caller := c.callSetStatus
if c.interceptor != nil {
caller = func(ctx context.Context, req *SetStatusReq) (*google_protobuf.Empty, error) {
resp, err := c.interceptor(
func(ctx context.Context, req interface{}) (interface{}, error) {
typedReq, ok := req.(*SetStatusReq)
if !ok {
return nil, twirp.InternalError("failed type assertion req.(*SetStatusReq) when calling interceptor")
}
return c.callSetStatus(ctx, typedReq)
},
)(ctx, req)
if resp != nil {
typedResp, ok := resp.(*google_protobuf.Empty)
if !ok {
return nil, twirp.InternalError("failed type assertion resp.(*google_protobuf.Empty) when calling interceptor")
}
return typedResp, err
}
return nil, err
}
}
return caller(ctx, in)
}
func (c *sportProtobufClient) callSetStatus(ctx context.Context, in *SetStatusReq) (*google_protobuf.Empty, error) {
out := new(google_protobuf.Empty)
ctx, err := doProtobufRequest(ctx, c.client, c.opts.Hooks, c.urls[0], in, out)
if err != nil {
twerr, ok := err.(twirp.Error)
if !ok {
twerr = twirp.InternalErrorWith(err)
}
callClientError(ctx, c.opts.Hooks, twerr)
return nil, err
}
callClientResponseReceived(ctx, c.opts.Hooks)
return out, nil
}
func (c *sportProtobufClient) GetStatus(ctx context.Context, in *google_protobuf.Empty) (*StatusResp, error) {
ctx = ctxsetters.WithPackageName(ctx, "sport.v1")
ctx = ctxsetters.WithServiceName(ctx, "Sport")
ctx = ctxsetters.WithMethodName(ctx, "GetStatus")
caller := c.callGetStatus
if c.interceptor != nil {
caller = func(ctx context.Context, req *google_protobuf.Empty) (*StatusResp, error) {
resp, err := c.interceptor(
func(ctx context.Context, req interface{}) (interface{}, error) {
typedReq, ok := req.(*google_protobuf.Empty)
if !ok {
return nil, twirp.InternalError("failed type assertion req.(*google_protobuf.Empty) when calling interceptor")
}
return c.callGetStatus(ctx, typedReq)
},
)(ctx, req)
if resp != nil {
typedResp, ok := resp.(*StatusResp)
if !ok {
return nil, twirp.InternalError("failed type assertion resp.(*StatusResp) when calling interceptor")
}
return typedResp, err
}
return nil, err
}
}
return caller(ctx, in)
}
func (c *sportProtobufClient) callGetStatus(ctx context.Context, in *google_protobuf.Empty) (*StatusResp, error) {
out := new(StatusResp)
ctx, err := doProtobufRequest(ctx, c.client, c.opts.Hooks, c.urls[1], in, out)
if err != nil {
twerr, ok := err.(twirp.Error)
if !ok {
twerr = twirp.InternalErrorWith(err)
}
callClientError(ctx, c.opts.Hooks, twerr)
return nil, err
}
callClientResponseReceived(ctx, c.opts.Hooks)
return out, nil
}
// =================
// Sport JSON Client
// =================
type sportJSONClient struct {
client HTTPClient
urls [2]string
interceptor twirp.Interceptor
opts twirp.ClientOptions
}
// NewSportJSONClient creates a JSON client that implements the Sport interface.
// It communicates using JSON and can be configured with a custom HTTPClient.
func NewSportJSONClient(baseURL string, client HTTPClient, opts ...twirp.ClientOption) Sport {
if c, ok := client.(*http.Client); ok {
client = withoutRedirects(c)
}
clientOpts := twirp.ClientOptions{}
for _, o := range opts {
o(&clientOpts)
}
// Using ReadOpt allows backwards and forwards compatibility with new options in the future
literalURLs := false
_ = clientOpts.ReadOpt("literalURLs", &literalURLs)
var pathPrefix string
if ok := clientOpts.ReadOpt("pathPrefix", &pathPrefix); !ok {
pathPrefix = "/twirp" // default prefix
}
// Build method URLs: <baseURL>[<prefix>]/<package>.<Service>/<Method>
serviceURL := sanitizeBaseURL(baseURL)
serviceURL += baseServicePath(pathPrefix, "sport.v1", "Sport")
urls := [2]string{
serviceURL + "SetStatus",
serviceURL + "GetStatus",
}
return &sportJSONClient{
client: client,
urls: urls,
interceptor: twirp.ChainInterceptors(clientOpts.Interceptors...),
opts: clientOpts,
}
}
func (c *sportJSONClient) SetStatus(ctx context.Context, in *SetStatusReq) (*google_protobuf.Empty, error) {
ctx = ctxsetters.WithPackageName(ctx, "sport.v1")
ctx = ctxsetters.WithServiceName(ctx, "Sport")
ctx = ctxsetters.WithMethodName(ctx, "SetStatus")
caller := c.callSetStatus
if c.interceptor != nil {
caller = func(ctx context.Context, req *SetStatusReq) (*google_protobuf.Empty, error) {
resp, err := c.interceptor(
func(ctx context.Context, req interface{}) (interface{}, error) {
typedReq, ok := req.(*SetStatusReq)
if !ok {
return nil, twirp.InternalError("failed type assertion req.(*SetStatusReq) when calling interceptor")
}
return c.callSetStatus(ctx, typedReq)
},
)(ctx, req)
if resp != nil {
typedResp, ok := resp.(*google_protobuf.Empty)
if !ok {
return nil, twirp.InternalError("failed type assertion resp.(*google_protobuf.Empty) when calling interceptor")
}
return typedResp, err
}
return nil, err
}
}
return caller(ctx, in)
}
func (c *sportJSONClient) callSetStatus(ctx context.Context, in *SetStatusReq) (*google_protobuf.Empty, error) {
out := new(google_protobuf.Empty)
ctx, err := doJSONRequest(ctx, c.client, c.opts.Hooks, c.urls[0], in, out)
if err != nil {
twerr, ok := err.(twirp.Error)
if !ok {
twerr = twirp.InternalErrorWith(err)
}
callClientError(ctx, c.opts.Hooks, twerr)
return nil, err
}
callClientResponseReceived(ctx, c.opts.Hooks)
return out, nil
}
func (c *sportJSONClient) GetStatus(ctx context.Context, in *google_protobuf.Empty) (*StatusResp, error) {
ctx = ctxsetters.WithPackageName(ctx, "sport.v1")
ctx = ctxsetters.WithServiceName(ctx, "Sport")
ctx = ctxsetters.WithMethodName(ctx, "GetStatus")
caller := c.callGetStatus
if c.interceptor != nil {
caller = func(ctx context.Context, req *google_protobuf.Empty) (*StatusResp, error) {
resp, err := c.interceptor(
func(ctx context.Context, req interface{}) (interface{}, error) {
typedReq, ok := req.(*google_protobuf.Empty)
if !ok {
return nil, twirp.InternalError("failed type assertion req.(*google_protobuf.Empty) when calling interceptor")
}
return c.callGetStatus(ctx, typedReq)
},
)(ctx, req)
if resp != nil {
typedResp, ok := resp.(*StatusResp)
if !ok {
return nil, twirp.InternalError("failed type assertion resp.(*StatusResp) when calling interceptor")
}
return typedResp, err
}
return nil, err
}
}
return caller(ctx, in)
}
func (c *sportJSONClient) callGetStatus(ctx context.Context, in *google_protobuf.Empty) (*StatusResp, error) {
out := new(StatusResp)
ctx, err := doJSONRequest(ctx, c.client, c.opts.Hooks, c.urls[1], in, out)
if err != nil {
twerr, ok := err.(twirp.Error)
if !ok {
twerr = twirp.InternalErrorWith(err)
}
callClientError(ctx, c.opts.Hooks, twerr)
return nil, err
}
callClientResponseReceived(ctx, c.opts.Hooks)
return out, nil
}
// ====================
// Sport Server Handler
// ====================
type sportServer struct {
Sport
interceptor twirp.Interceptor
hooks *twirp.ServerHooks
pathPrefix string // prefix for routing
jsonSkipDefaults bool // do not include unpopulated fields (default values) in the response
jsonCamelCase bool // JSON fields are serialized as lowerCamelCase rather than keeping the original proto names
}
// NewSportServer builds a TwirpServer that can be used as an http.Handler to handle
// HTTP requests that are routed to the right method in the provided svc implementation.
// The opts are twirp.ServerOption modifiers, for example twirp.WithServerHooks(hooks).
func NewSportServer(svc Sport, opts ...interface{}) TwirpServer {
serverOpts := newServerOpts(opts)
// Using ReadOpt allows backwards and forwards compatibility with new options in the future
jsonSkipDefaults := false
_ = serverOpts.ReadOpt("jsonSkipDefaults", &jsonSkipDefaults)
jsonCamelCase := false
_ = serverOpts.ReadOpt("jsonCamelCase", &jsonCamelCase)
var pathPrefix string
if ok := serverOpts.ReadOpt("pathPrefix", &pathPrefix); !ok {
pathPrefix = "/twirp" // default prefix
}
return &sportServer{
Sport: svc,
hooks: serverOpts.Hooks,
interceptor: twirp.ChainInterceptors(serverOpts.Interceptors...),
pathPrefix: pathPrefix,
jsonSkipDefaults: jsonSkipDefaults,
jsonCamelCase: jsonCamelCase,
}
}
// writeError writes an HTTP response with a valid Twirp error format, and triggers hooks.
// If err is not a twirp.Error, it will get wrapped with twirp.InternalErrorWith(err)
func (s *sportServer) writeError(ctx context.Context, resp http.ResponseWriter, err error) {
writeError(ctx, resp, err, s.hooks)
}
// handleRequestBodyError is used to handle error when the twirp server cannot read request
func (s *sportServer) handleRequestBodyError(ctx context.Context, resp http.ResponseWriter, msg string, err error) {
if context.Canceled == ctx.Err() {
s.writeError(ctx, resp, twirp.NewError(twirp.Canceled, "failed to read request: context canceled"))
return
}
if context.DeadlineExceeded == ctx.Err() {
s.writeError(ctx, resp, twirp.NewError(twirp.DeadlineExceeded, "failed to read request: deadline exceeded"))
return
}
s.writeError(ctx, resp, twirp.WrapError(malformedRequestError(msg), err))
}
// SportPathPrefix is a convenience constant that may identify URL paths.
// Should be used with caution, it only matches routes generated by Twirp Go clients,
// with the default "/twirp" prefix and default CamelCase service and method names.
// More info: https://twitchtv.github.io/twirp/docs/routing.html
const SportPathPrefix = "/twirp/sport.v1.Sport/"
func (s *sportServer) ServeHTTP(resp http.ResponseWriter, req *http.Request) {
ctx := req.Context()
ctx = ctxsetters.WithPackageName(ctx, "sport.v1")
ctx = ctxsetters.WithServiceName(ctx, "Sport")
ctx = ctxsetters.WithResponseWriter(ctx, resp)
var err error
ctx, err = callRequestReceived(ctx, s.hooks)
if err != nil {
s.writeError(ctx, resp, err)
return
}
if req.Method != "POST" {
msg := fmt.Sprintf("unsupported method %q (only POST is allowed)", req.Method)
s.writeError(ctx, resp, badRouteError(msg, req.Method, req.URL.Path))
return
}
// Verify path format: [<prefix>]/<package>.<Service>/<Method>
prefix, pkgService, method := parseTwirpPath(req.URL.Path)
if pkgService != "sport.v1.Sport" {
msg := fmt.Sprintf("no handler for path %q", req.URL.Path)
s.writeError(ctx, resp, badRouteError(msg, req.Method, req.URL.Path))
return
}
if prefix != s.pathPrefix {
msg := fmt.Sprintf("invalid path prefix %q, expected %q, on path %q", prefix, s.pathPrefix, req.URL.Path)
s.writeError(ctx, resp, badRouteError(msg, req.Method, req.URL.Path))
return
}
switch method {
case "SetStatus":
s.serveSetStatus(ctx, resp, req)
return
case "GetStatus":
s.serveGetStatus(ctx, resp, req)
return
default:
msg := fmt.Sprintf("no handler for path %q", req.URL.Path)
s.writeError(ctx, resp, badRouteError(msg, req.Method, req.URL.Path))
return
}
}
func (s *sportServer) serveSetStatus(ctx context.Context, resp http.ResponseWriter, req *http.Request) {
header := req.Header.Get("Content-Type")
i := strings.Index(header, ";")
if i == -1 {
i = len(header)
}
switch strings.TrimSpace(strings.ToLower(header[:i])) {
case "application/json":
s.serveSetStatusJSON(ctx, resp, req)
case "application/protobuf":
s.serveSetStatusProtobuf(ctx, resp, req)
default:
msg := fmt.Sprintf("unexpected Content-Type: %q", req.Header.Get("Content-Type"))
twerr := badRouteError(msg, req.Method, req.URL.Path)
s.writeError(ctx, resp, twerr)
}
}
func (s *sportServer) serveSetStatusJSON(ctx context.Context, resp http.ResponseWriter, req *http.Request) {
var err error
ctx = ctxsetters.WithMethodName(ctx, "SetStatus")
ctx, err = callRequestRouted(ctx, s.hooks)
if err != nil {
s.writeError(ctx, resp, err)
return
}
d := json.NewDecoder(req.Body)
rawReqBody := json.RawMessage{}
if err := d.Decode(&rawReqBody); err != nil {
s.handleRequestBodyError(ctx, resp, "the json request could not be decoded", err)
return
}
reqContent := new(SetStatusReq)
unmarshaler := protojson.UnmarshalOptions{DiscardUnknown: true}
if err = unmarshaler.Unmarshal(rawReqBody, reqContent); err != nil {
s.handleRequestBodyError(ctx, resp, "the json request could not be decoded", err)
return
}
handler := s.Sport.SetStatus
if s.interceptor != nil {
handler = func(ctx context.Context, req *SetStatusReq) (*google_protobuf.Empty, error) {
resp, err := s.interceptor(
func(ctx context.Context, req interface{}) (interface{}, error) {
typedReq, ok := req.(*SetStatusReq)
if !ok {
return nil, twirp.InternalError("failed type assertion req.(*SetStatusReq) when calling interceptor")
}
return s.Sport.SetStatus(ctx, typedReq)
},
)(ctx, req)
if resp != nil {
typedResp, ok := resp.(*google_protobuf.Empty)
if !ok {
return nil, twirp.InternalError("failed type assertion resp.(*google_protobuf.Empty) when calling interceptor")
}
return typedResp, err
}
return nil, err
}
}
// Call service method
var respContent *google_protobuf.Empty
func() {
defer ensurePanicResponses(ctx, resp, s.hooks)
respContent, err = handler(ctx, reqContent)
}()
if err != nil {
s.writeError(ctx, resp, err)
return
}
if respContent == nil {
s.writeError(ctx, resp, twirp.InternalError("received a nil *google_protobuf.Empty and nil error while calling SetStatus. nil responses are not supported"))
return
}
ctx = callResponsePrepared(ctx, s.hooks)
marshaler := &protojson.MarshalOptions{UseProtoNames: !s.jsonCamelCase, EmitUnpopulated: !s.jsonSkipDefaults}
respBytes, err := marshaler.Marshal(respContent)
if err != nil {
s.writeError(ctx, resp, wrapInternal(err, "failed to marshal json response"))
return
}
ctx = ctxsetters.WithStatusCode(ctx, http.StatusOK)
resp.Header().Set("Content-Type", "application/json")
resp.Header().Set("Content-Length", strconv.Itoa(len(respBytes)))
resp.WriteHeader(http.StatusOK)
if n, err := resp.Write(respBytes); err != nil {
msg := fmt.Sprintf("failed to write response, %d of %d bytes written: %s", n, len(respBytes), err.Error())
twerr := twirp.NewError(twirp.Unknown, msg)
ctx = callError(ctx, s.hooks, twerr)
}
callResponseSent(ctx, s.hooks)
}
func (s *sportServer) serveSetStatusProtobuf(ctx context.Context, resp http.ResponseWriter, req *http.Request) {
var err error
ctx = ctxsetters.WithMethodName(ctx, "SetStatus")
ctx, err = callRequestRouted(ctx, s.hooks)
if err != nil {
s.writeError(ctx, resp, err)
return
}
buf, err := io.ReadAll(req.Body)
if err != nil {
s.handleRequestBodyError(ctx, resp, "failed to read request body", err)
return
}
reqContent := new(SetStatusReq)
if err = proto.Unmarshal(buf, reqContent); err != nil {
s.writeError(ctx, resp, malformedRequestError("the protobuf request could not be decoded"))
return
}
handler := s.Sport.SetStatus
if s.interceptor != nil {
handler = func(ctx context.Context, req *SetStatusReq) (*google_protobuf.Empty, error) {
resp, err := s.interceptor(
func(ctx context.Context, req interface{}) (interface{}, error) {
typedReq, ok := req.(*SetStatusReq)
if !ok {
return nil, twirp.InternalError("failed type assertion req.(*SetStatusReq) when calling interceptor")
}
return s.Sport.SetStatus(ctx, typedReq)
},
)(ctx, req)
if resp != nil {
typedResp, ok := resp.(*google_protobuf.Empty)
if !ok {
return nil, twirp.InternalError("failed type assertion resp.(*google_protobuf.Empty) when calling interceptor")
}
return typedResp, err
}
return nil, err
}
}
// Call service method
var respContent *google_protobuf.Empty
func() {
defer ensurePanicResponses(ctx, resp, s.hooks)
respContent, err = handler(ctx, reqContent)
}()
if err != nil {
s.writeError(ctx, resp, err)
return
}
if respContent == nil {
s.writeError(ctx, resp, twirp.InternalError("received a nil *google_protobuf.Empty and nil error while calling SetStatus. nil responses are not supported"))
return
}
ctx = callResponsePrepared(ctx, s.hooks)
respBytes, err := proto.Marshal(respContent)
if err != nil {
s.writeError(ctx, resp, wrapInternal(err, "failed to marshal proto response"))
return
}
ctx = ctxsetters.WithStatusCode(ctx, http.StatusOK)
resp.Header().Set("Content-Type", "application/protobuf")
resp.Header().Set("Content-Length", strconv.Itoa(len(respBytes)))
resp.WriteHeader(http.StatusOK)
if n, err := resp.Write(respBytes); err != nil {
msg := fmt.Sprintf("failed to write response, %d of %d bytes written: %s", n, len(respBytes), err.Error())
twerr := twirp.NewError(twirp.Unknown, msg)
ctx = callError(ctx, s.hooks, twerr)
}
callResponseSent(ctx, s.hooks)
}
func (s *sportServer) serveGetStatus(ctx context.Context, resp http.ResponseWriter, req *http.Request) {
header := req.Header.Get("Content-Type")
i := strings.Index(header, ";")
if i == -1 {
i = len(header)
}
switch strings.TrimSpace(strings.ToLower(header[:i])) {
case "application/json":
s.serveGetStatusJSON(ctx, resp, req)
case "application/protobuf":
s.serveGetStatusProtobuf(ctx, resp, req)
default:
msg := fmt.Sprintf("unexpected Content-Type: %q", req.Header.Get("Content-Type"))
twerr := badRouteError(msg, req.Method, req.URL.Path)
s.writeError(ctx, resp, twerr)
}
}
func (s *sportServer) serveGetStatusJSON(ctx context.Context, resp http.ResponseWriter, req *http.Request) {
var err error
ctx = ctxsetters.WithMethodName(ctx, "GetStatus")
ctx, err = callRequestRouted(ctx, s.hooks)
if err != nil {
s.writeError(ctx, resp, err)
return
}
d := json.NewDecoder(req.Body)
rawReqBody := json.RawMessage{}
if err := d.Decode(&rawReqBody); err != nil {
s.handleRequestBodyError(ctx, resp, "the json request could not be decoded", err)
return
}
reqContent := new(google_protobuf.Empty)
unmarshaler := protojson.UnmarshalOptions{DiscardUnknown: true}
if err = unmarshaler.Unmarshal(rawReqBody, reqContent); err != nil {
s.handleRequestBodyError(ctx, resp, "the json request could not be decoded", err)
return
}
handler := s.Sport.GetStatus
if s.interceptor != nil {
handler = func(ctx context.Context, req *google_protobuf.Empty) (*StatusResp, error) {
resp, err := s.interceptor(
func(ctx context.Context, req interface{}) (interface{}, error) {
typedReq, ok := req.(*google_protobuf.Empty)
if !ok {
return nil, twirp.InternalError("failed type assertion req.(*google_protobuf.Empty) when calling interceptor")
}
return s.Sport.GetStatus(ctx, typedReq)
},
)(ctx, req)
if resp != nil {
typedResp, ok := resp.(*StatusResp)
if !ok {
return nil, twirp.InternalError("failed type assertion resp.(*StatusResp) when calling interceptor")
}
return typedResp, err
}
return nil, err
}
}
// Call service method
var respContent *StatusResp
func() {
defer ensurePanicResponses(ctx, resp, s.hooks)
respContent, err = handler(ctx, reqContent)
}()
if err != nil {
s.writeError(ctx, resp, err)
return
}
if respContent == nil {
s.writeError(ctx, resp, twirp.InternalError("received a nil *StatusResp and nil error while calling GetStatus. nil responses are not supported"))
return
}
ctx = callResponsePrepared(ctx, s.hooks)
marshaler := &protojson.MarshalOptions{UseProtoNames: !s.jsonCamelCase, EmitUnpopulated: !s.jsonSkipDefaults}
respBytes, err := marshaler.Marshal(respContent)
if err != nil {
s.writeError(ctx, resp, wrapInternal(err, "failed to marshal json response"))
return
}
ctx = ctxsetters.WithStatusCode(ctx, http.StatusOK)
resp.Header().Set("Content-Type", "application/json")
resp.Header().Set("Content-Length", strconv.Itoa(len(respBytes)))
resp.WriteHeader(http.StatusOK)
if n, err := resp.Write(respBytes); err != nil {
msg := fmt.Sprintf("failed to write response, %d of %d bytes written: %s", n, len(respBytes), err.Error())
twerr := twirp.NewError(twirp.Unknown, msg)
ctx = callError(ctx, s.hooks, twerr)
}
callResponseSent(ctx, s.hooks)
}
func (s *sportServer) serveGetStatusProtobuf(ctx context.Context, resp http.ResponseWriter, req *http.Request) {
var err error
ctx = ctxsetters.WithMethodName(ctx, "GetStatus")
ctx, err = callRequestRouted(ctx, s.hooks)
if err != nil {
s.writeError(ctx, resp, err)
return
}
buf, err := io.ReadAll(req.Body)
if err != nil {
s.handleRequestBodyError(ctx, resp, "failed to read request body", err)
return
}
reqContent := new(google_protobuf.Empty)
if err = proto.Unmarshal(buf, reqContent); err != nil {
s.writeError(ctx, resp, malformedRequestError("the protobuf request could not be decoded"))
return
}
handler := s.Sport.GetStatus
if s.interceptor != nil {
handler = func(ctx context.Context, req *google_protobuf.Empty) (*StatusResp, error) {
resp, err := s.interceptor(
func(ctx context.Context, req interface{}) (interface{}, error) {
typedReq, ok := req.(*google_protobuf.Empty)
if !ok {
return nil, twirp.InternalError("failed type assertion req.(*google_protobuf.Empty) when calling interceptor")
}
return s.Sport.GetStatus(ctx, typedReq)
},
)(ctx, req)
if resp != nil {
typedResp, ok := resp.(*StatusResp)
if !ok {
return nil, twirp.InternalError("failed type assertion resp.(*StatusResp) when calling interceptor")
}
return typedResp, err
}
return nil, err
}
}
// Call service method
var respContent *StatusResp
func() {
defer ensurePanicResponses(ctx, resp, s.hooks)
respContent, err = handler(ctx, reqContent)
}()
if err != nil {
s.writeError(ctx, resp, err)
return
}
if respContent == nil {
s.writeError(ctx, resp, twirp.InternalError("received a nil *StatusResp and nil error while calling GetStatus. nil responses are not supported"))
return
}
ctx = callResponsePrepared(ctx, s.hooks)
respBytes, err := proto.Marshal(respContent)
if err != nil {
s.writeError(ctx, resp, wrapInternal(err, "failed to marshal proto response"))
return
}
ctx = ctxsetters.WithStatusCode(ctx, http.StatusOK)
resp.Header().Set("Content-Type", "application/protobuf")
resp.Header().Set("Content-Length", strconv.Itoa(len(respBytes)))
resp.WriteHeader(http.StatusOK)
if n, err := resp.Write(respBytes); err != nil {
msg := fmt.Sprintf("failed to write response, %d of %d bytes written: %s", n, len(respBytes), err.Error())
twerr := twirp.NewError(twirp.Unknown, msg)
ctx = callError(ctx, s.hooks, twerr)
}
callResponseSent(ctx, s.hooks)
}
func (s *sportServer) ServiceDescriptor() ([]byte, int) {
return twirpFileDescriptor0, 0
}
func (s *sportServer) ProtocGenTwirpVersion() string {
return "v8.1.3"
}
// PathPrefix returns the base service path, in the form: "/<prefix>/<package>.<Service>/"
// that is everything in a Twirp route except for the <Method>. This can be used for routing,
// for example to identify the requests that are targeted to this service in a mux.
func (s *sportServer) PathPrefix() string {
return baseServicePath(s.pathPrefix, "sport.v1", "Sport")
}
// =====
// Utils
// =====
// HTTPClient is the interface used by generated clients to send HTTP requests.
// It is fulfilled by *(net/http).Client, which is sufficient for most users.
// Users can provide their own implementation for special retry policies.
//
// HTTPClient implementations should not follow redirects. Redirects are
// automatically disabled if *(net/http).Client is passed to client
// constructors. See the withoutRedirects function in this file for more
// details.
type HTTPClient interface {
Do(req *http.Request) (*http.Response, error)
}
// TwirpServer is the interface generated server structs will support: they're
// HTTP handlers with additional methods for accessing metadata about the
// service. Those accessors are a low-level API for building reflection tools.
// Most people can think of TwirpServers as just http.Handlers.
type TwirpServer interface {
http.Handler
// ServiceDescriptor returns gzipped bytes describing the .proto file that
// this service was generated from. Once unzipped, the bytes can be
// unmarshalled as a
// google.golang.org/protobuf/types/descriptorpb.FileDescriptorProto.
//
// The returned integer is the index of this particular service within that
// FileDescriptorProto's 'Service' slice of ServiceDescriptorProtos. This is a
// low-level field, expected to be used for reflection.
ServiceDescriptor() ([]byte, int)
// ProtocGenTwirpVersion is the semantic version string of the version of
// twirp used to generate this file.
ProtocGenTwirpVersion() string
// PathPrefix returns the HTTP URL path prefix for all methods handled by this
// service. This can be used with an HTTP mux to route Twirp requests.
// The path prefix is in the form: "/<prefix>/<package>.<Service>/"
// that is, everything in a Twirp route except for the <Method> at the end.
PathPrefix() string
}
func newServerOpts(opts []interface{}) *twirp.ServerOptions {
serverOpts := &twirp.ServerOptions{}
for _, opt := range opts {
switch o := opt.(type) {
case twirp.ServerOption:
o(serverOpts)
case *twirp.ServerHooks: // backwards compatibility, allow to specify hooks as an argument
twirp.WithServerHooks(o)(serverOpts)
case nil: // backwards compatibility, allow nil value for the argument
continue
default:
panic(fmt.Sprintf("Invalid option type %T, please use a twirp.ServerOption", o))
}
}
return serverOpts
}
// WriteError writes an HTTP response with a valid Twirp error format (code, msg, meta).
// Useful outside of the Twirp server (e.g. http middleware), but does not trigger hooks.
// If err is not a twirp.Error, it will get wrapped with twirp.InternalErrorWith(err)
func WriteError(resp http.ResponseWriter, err error) {
writeError(context.Background(), resp, err, nil)
}
// writeError writes Twirp errors in the response and triggers hooks.
func writeError(ctx context.Context, resp http.ResponseWriter, err error, hooks *twirp.ServerHooks) {
// Convert to a twirp.Error. Non-twirp errors are converted to internal errors.
var twerr twirp.Error
if !errors.As(err, &twerr) {
twerr = twirp.InternalErrorWith(err)
}
statusCode := twirp.ServerHTTPStatusFromErrorCode(twerr.Code())
ctx = ctxsetters.WithStatusCode(ctx, statusCode)
ctx = callError(ctx, hooks, twerr)
respBody := marshalErrorToJSON(twerr)
resp.Header().Set("Content-Type", "application/json") // Error responses are always JSON
resp.Header().Set("Content-Length", strconv.Itoa(len(respBody)))
resp.WriteHeader(statusCode) // set HTTP status code and send response
_, writeErr := resp.Write(respBody)
if writeErr != nil {
// We have three options here. We could log the error, call the Error
// hook, or just silently ignore the error.
//
// Logging is unacceptable because we don't have a user-controlled
// logger; writing out to stderr without permission is too rude.
//
// Calling the Error hook would confuse users: it would mean the Error
// hook got called twice for one request, which is likely to lead to
// duplicated log messages and metrics, no matter how well we document
// the behavior.
//
// Silently ignoring the error is our least-bad option. It's highly
// likely that the connection is broken and the original 'err' says
// so anyway.
_ = writeErr
}
callResponseSent(ctx, hooks)
}
// sanitizeBaseURL parses the the baseURL, and adds the "http" scheme if needed.
// If the URL is unparsable, the baseURL is returned unchanged.
func sanitizeBaseURL(baseURL string) string {
u, err := url.Parse(baseURL)
if err != nil {
return baseURL // invalid URL will fail later when making requests
}
if u.Scheme == "" {
u.Scheme = "http"
}
return u.String()
}
// baseServicePath composes the path prefix for the service (without <Method>).
// e.g.: baseServicePath("/twirp", "my.pkg", "MyService")
//
// returns => "/twirp/my.pkg.MyService/"
//
// e.g.: baseServicePath("", "", "MyService")
//
// returns => "/MyService/"
func baseServicePath(prefix, pkg, service string) string {
fullServiceName := service
if pkg != "" {
fullServiceName = pkg + "." + service
}
return path.Join("/", prefix, fullServiceName) + "/"
}
// parseTwirpPath extracts path components form a valid Twirp route.
// Expected format: "[<prefix>]/<package>.<Service>/<Method>"
// e.g.: prefix, pkgService, method := parseTwirpPath("/twirp/pkg.Svc/MakeHat")
func parseTwirpPath(path string) (string, string, string) {
parts := strings.Split(path, "/")
if len(parts) < 2 {
return "", "", ""
}
method := parts[len(parts)-1]
pkgService := parts[len(parts)-2]
prefix := strings.Join(parts[0:len(parts)-2], "/")
return prefix, pkgService, method
}
// getCustomHTTPReqHeaders retrieves a copy of any headers that are set in
// a context through the twirp.WithHTTPRequestHeaders function.
// If there are no headers set, or if they have the wrong type, nil is returned.
func getCustomHTTPReqHeaders(ctx context.Context) http.Header {
header, ok := twirp.HTTPRequestHeaders(ctx)
if !ok || header == nil {
return nil
}
copied := make(http.Header)
for k, vv := range header {
if vv == nil {
copied[k] = nil
continue
}
copied[k] = make([]string, len(vv))
copy(copied[k], vv)
}
return copied
}
// newRequest makes an http.Request from a client, adding common headers.
func newRequest(ctx context.Context, url string, reqBody io.Reader, contentType string) (*http.Request, error) {
req, err := http.NewRequest("POST", url, reqBody)
if err != nil {
return nil, err
}
req = req.WithContext(ctx)
if customHeader := getCustomHTTPReqHeaders(ctx); customHeader != nil {
req.Header = customHeader
}
req.Header.Set("Accept", contentType)
req.Header.Set("Content-Type", contentType)
req.Header.Set("Twirp-Version", "v8.1.3")
return req, nil
}
// JSON serialization for errors
type twerrJSON struct {
Code string `json:"code"`
Msg string `json:"msg"`
Meta map[string]string `json:"meta,omitempty"`
}
// marshalErrorToJSON returns JSON from a twirp.Error, that can be used as HTTP error response body.
// If serialization fails, it will use a descriptive Internal error instead.