Infrastructure/safetwitch-backend
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Working bulk stream info function, needs cleaning

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This commit is contained in:
dragongoose 2023-11-26 15:00:26 -05:00
parent ffda13f006
commit 8d5ca942a6
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GPG key ID: 01397EEC371CDAA5
4 changed files with 88 additions and 22 deletions
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58
extractor/twitch/Streamer.go
View file

@ -2,6 +2,7 @@ package twitch
import (
"errors"
"safetwitch-backend/extractor"
"safetwitch-backend/extractor/structs"
"github.com/tidwall/gjson"
@ -112,7 +113,7 @@ func GetStreamerInfo(streamerName string) (structs.Streamer, error) {
return structs.Streamer{}, err
}
parsedStream, err := ParseStream(string(body))
parsedStream, err := ParseStream(string(body), 0)
var isLive bool
if err != nil {
if err.Error() == "streamer is not live" {
@ -168,7 +169,7 @@ func GetStreamerId(channelName string) (string, error) {
}
}
func GetBulkStreamerInfo(streamers []string) string {
func GetBulkStreamerInfo(streamers []string) ([]structs.Streamer, error) {
var payload []TwitchPayload
for _, streamer := range streamers {
tmp := []TwitchPayload{
@ -261,7 +262,56 @@ func GetBulkStreamerInfo(streamers []string) string {
payload = append(payload, tmp...)
}
_, body, _ := parseResponse(payload)
_, body, err := parseResponse(payload)
if err != nil {
return []structs.Streamer{}, err
}
return string(body)
len := len(streamers) * 6
var foundStreamers []structs.Streamer
for i := 0; i < (len / 6); i++ {
offset := i * 6
// begin parsing response
streamerFound := gjson.Get(string(body), extractor.GenGjsonQuery(offset, ".data.user"))
if streamerFound.String() == "" {
// return structs.Streamer{}, errors.New("streamer not found")
continue
}
streamerData := gjson.Get(string(body), extractor.GenGjsonQuery(offset, ".data"))
parsedSocials, err := ParseSocials(streamerData.String())
if err != nil {
// return structs.Streamer{}, err
continue
}
parsedStream, err := ParseStream(string(body), offset)
var isLive bool
if err != nil {
if err.Error() == "streamer is not live" {
parsedStream = nil
} else {
continue
}
}
if parsedStream != nil {
isLive = true
} else {
isLive = false
}
streamerBanner := gjson.Get(string(body), extractor.GenGjsonQuery(offset+5, ".data.userOrError.bannerImageURL")).String()
parsedStreamer, err := ParseStreamer(streamerData, isLive, parsedSocials, parsedStream, streamers[i], streamerBanner)
if err != nil {
return []structs.Streamer{}, err
}
foundStreamers = append(foundStreamers, parsedStreamer)
}
return foundStreamers, nil
}

20
extractor/twitch/parser.go
View file

@ -66,15 +66,20 @@ func ParseSocials(data string) ([]structs.Social, error) {
return parsedSocials, nil
}
func ParseStream(data string) (*structs.Stream, error) {
// Takes in all of the data returned from twitch (see payload from Streamer.go)
// and parses it into a stream. Offset is used for bulk processing
// when the offsets are different. Use offset 0 for normal uses
func ParseStream(data string, offset int) (*structs.Stream, error) {
// check if live
stream := gjson.Get(data, "1.data.user.stream")
// default "1.data.user.stream"
stream := gjson.Get(data, extractor.GenGjsonQuery(offset+1, ".data.user.stream"))
if !stream.IsObject() {
return nil, errors.New("streamer is not live")
}
var tags []string
tagArea := gjson.Get(data, "2.data.user.stream.freeformTags").Array()
// default "2.data.user.stream.freeformTags"
tagArea := gjson.Get(data, extractor.GenGjsonQuery(offset+2, ".data.user.stream.freeformTags")).Array()
for _, tag := range tagArea {
tags = append(tags, tag.Get("name").String())
}
@ -85,12 +90,15 @@ func ParseStream(data string) (*structs.Stream, error) {
}
parsedStream := structs.Stream{
Title: gjson.Get(data, "1.data.user.lastBroadcast.title").String(),
// default "1.data.user.lastBroadcast.title"
Title: gjson.Get(data, extractor.GenGjsonQuery(offset+1, ".data.user.lastBroadcast.title")).String(),
Topic: stream.Get("game.name").String(),
StartedAt: time,
Tags: tags,
Viewers: int(gjson.Get(data, "4.data.user.stream.viewersCount").Int()),
Preview: extractor.ProxyUrl(gjson.Get(data, "3.data.user.stream.previewImageURL").String()),
// default "4.data.user.stream.viewersCount"
Viewers: int(gjson.Get(data, extractor.GenGjsonQuery(offset+4, ".data.user.stream.viewersCount")).Int()),
// default "3.data.user.stream.previewImageURL"
Preview: extractor.ProxyUrl(gjson.Get(data, extractor.GenGjsonQuery(offset+3, ".data.user.stream.previewImageURL")).String()),
}
return &parsedStream, nil

5
extractor/utils.go
View file

@ -2,9 +2,14 @@ package extractor
import (
b64 "encoding/base64"
"fmt"
"os"
)
func GenGjsonQuery(i int, query string) string {
return fmt.Sprintf("%d%s", i, query)
}
func ProxyUrl(url string) string {
encodedUrl := b64.URLEncoding.EncodeToString([]byte(url))
backendUrl := os.Getenv("URL")

27
routes/api/users/users.go
View file

@ -28,18 +28,21 @@ func Routes(route *gin.Engine) {
context.JSON(200, extractor.FormatMessage(data, true))
})
// type postData struct {
// Streamers []string `json:"streamers"`
// }
type postData struct {
Streamers []string `json:"streamers"`
}
// auth.POST("/bulk", func(context *gin.Context) {
// var f postData
// err := context.ShouldBindJSON(&f)
// if err != nil {
// context.Error(err)
// }
auth.POST("/bulk", func(context *gin.Context) {
var f postData
err := context.ShouldBindJSON(&f)
if err != nil {
context.Error(err)
}
// data := twitch.GetBulkStreamerInfo(f.Streamers)
// context.JSON(200, extractor.FormatMessage(data, true))
// })
data, err := twitch.GetBulkStreamerInfo(f.Streamers)
if err != nil {
context.Error(err)
}
context.JSON(200, extractor.FormatMessage(data, true))
})
}