How to use JSONUnmarshal method of venom Package

Best Venom code snippet using venom.JSONUnmarshal

kafka.go

Source:kafka.go

...160			if err != nil {161				return err162			}163			messages := []Message{}164			err = venom.JSONUnmarshal(content, &messages)165			if err != nil {166				return err167			}168			e.Messages = messages169		} else {170			return err171		}172	}173	for i := range e.Messages {174		message := e.Messages[i]175		value, err := e.getMessageValue(&message, workdir)176		if err != nil {177			return err178		}179		messages = append(messages, &sarama.ProducerMessage{180			Topic: message.Topic,181			Key:   sarama.ByteEncoder([]byte(message.Key)),182			Value: sarama.ByteEncoder(value),183		})184	}185	return sp.SendMessages(messages)186}187func (e Executor) getMessageValue(m *Message, workdir string) ([]byte, error) {188	value, err := e.getRAWMessageValue(m, workdir)189	if err != nil {190		return nil, fmt.Errorf("can't get value: %w", err)191	}192	if !e.WithAVRO {193		// This is test without AVRO - value is all we need to have194		return value, nil195	}196	// This is test with Avro197	var (198		schemaID int199		schema   string200	)201	// 1. Get schema with its ID202	// 1.1 Try with the file, if provided203	subject := fmt.Sprintf("%s-value", m.Topic) // Using topic name strategy204	schemaFile := strings.Trim(m.AvroSchemaFile, " ")205	if len(schemaFile) != 0 {206		schemaPath := path.Join(workdir, schemaFile)207		schemaBlob, err := os.ReadFile(schemaPath)208		if err != nil {209			return nil, fmt.Errorf("can't read from %s: %w", schemaPath, err)210		}211		schema = string(schemaBlob)212		// 1.2 Push schema to Schema Registry213		schemaID, err = e.schemaReg.RegisterNewSchema(subject, schema)214		if err != nil {215			return nil, fmt.Errorf("can't register new schame in SchemaRegistry: %s", err)216		}217	} else {218		// 1.3 Get schema from Schema Registry219		schemaID, schema, err = e.schemaReg.GetLatestSchema(subject)220		if err != nil {221			return nil, fmt.Errorf("can't get latest schema for subject %s-value: %w", m.Topic, err)222		}223	}224	// 2. Encode Value with schema225	avroMsg, err := Convert2Avro(value, string(schema))226	if err != nil {227		return nil, fmt.Errorf("can't convert value 2 avro with schema: %w", err)228	}229	// 3. Create Kafka message with magic byte and schema ID230	encodedAvroMsg, err := CreateMessage(avroMsg, schemaID)231	if err != nil {232		return nil, fmt.Errorf("can't encode avro message with schemaID: %s", err)233	}234	return encodedAvroMsg, nil235}236func (e Executor) getRAWMessageValue(m *Message, workdir string) ([]byte, error) {237	// We have 2 fields Value and ValueFile from where we can get value, we prefer Value238	if len(m.Value) != 0 {239		// Most easiest scenario - Value is present240		return []byte(m.Value), nil241	}242	// Read from file243	s := path.Join(workdir, m.ValueFile)244	value, err := os.ReadFile(s)245	if err != nil {246		return nil, fmt.Errorf("can't read from %s: %w", s, err)247	}248	return value, nil249}250func (e Executor) consumeMessages(ctx context.Context) ([]Message, []interface{}, error) {251	if len(e.Topics) == 0 {252		return nil, nil, fmt.Errorf("You must provide topics")253	}254	config, err := e.getKafkaConfig()255	if err != nil {256		return nil, nil, err257	}258	if strings.TrimSpace(e.InitialOffset) == "oldest" {259		config.Consumer.Offsets.Initial = sarama.OffsetOldest260	}261	consumerGroup, err := sarama.NewConsumerGroup(e.Addrs, e.GroupID, config)262	if err != nil {263		return nil, nil, fmt.Errorf("error instanciate consumer err: %w", err)264	}265	defer func() { _ = consumerGroup.Close() }()266	timeout := time.Duration(e.Timeout) * time.Second267	if e.WaitFor > 0 {268		timeout = time.Duration(e.WaitFor) * time.Second269	}270	ctx, cancel := context.WithTimeout(ctx, timeout)271	defer cancel()272	// Track errors273	go func() {274		for err := range consumerGroup.Errors() {275			if e.WaitFor > 0 && errors.Is(err, context.DeadlineExceeded) {276				continue277			}278			venom.Error(ctx, "error on consume:%s", err)279		}280	}()281	h := &handler{282		withAVRO:     e.WithAVRO,283		messages:     []Message{},284		messagesJSON: []interface{}{},285		markOffset:   e.MarkOffset,286		messageLimit: e.MessageLimit,287		schemaReg:    e.schemaReg,288		keyFilter:    e.KeyFilter,289		done:         make(chan struct{}),290	}291	cherr := make(chan error)292	go func() {293		cherr <- consumerGroup.Consume(ctx, e.Topics, h)294	}()295	select {296	case err := <-cherr:297		if err != nil {298			if e.WaitFor > 0 && errors.Is(err, context.DeadlineExceeded) {299				venom.Info(ctx, "wait ended")300			} else {301				return nil, nil, fmt.Errorf("error on consume: %w", err)302			}303		}304	case <-ctx.Done():305		if ctx.Err() != nil {306			if e.WaitFor > 0 && errors.Is(ctx.Err(), context.DeadlineExceeded) {307				venom.Info(ctx, "wait ended")308			} else {309				return nil, nil, fmt.Errorf("kafka consumed failed: %w", ctx.Err())310			}311		}312	}313	return h.messages, h.messagesJSON, nil314}315func (e Executor) getKafkaConfig() (*sarama.Config, error) {316	config := sarama.NewConfig()317	config.Net.TLS.Enable = e.WithTLS318	config.Net.SASL.Enable = e.WithSASL319	config.Net.SASL.User = e.User320	config.Net.SASL.Password = e.Password321	config.Consumer.Return.Errors = true322	config.Net.DialTimeout = defaultDialTimeout323	config.Version = sarama.V2_6_0_0324	if e.KafkaVersion != "" {325		kafkaVersion, err := sarama.ParseKafkaVersion(e.KafkaVersion)326		if err != nil {327			return config, fmt.Errorf("error parsing Kafka version %v err: %w", kafkaVersion, err)328		}329		config.Version = kafkaVersion330	}331	return config, nil332}333// handler represents a Sarama consumer group consumer334type handler struct {335	withAVRO     bool336	messages     []Message337	messagesJSON []interface{}338	markOffset   bool339	messageLimit int340	schemaReg    SchemaRegistry341	keyFilter    string342	mutex        sync.Mutex343	done         chan struct{}344	once         sync.Once345}346// Setup is run at the beginning of a new session, before ConsumeClaim347func (h *handler) Setup(s sarama.ConsumerGroupSession) error {348	return nil349}350// Cleanup is run at the end of a session, once all ConsumeClaim goroutines have exited351func (h *handler) Cleanup(sarama.ConsumerGroupSession) error {352	return nil353}354// ConsumeClaim must start a consumer loop of ConsumerGroupClaim's Messages().355func (h *handler) ConsumeClaim(session sarama.ConsumerGroupSession, claim sarama.ConsumerGroupClaim) error {356	ctx := session.Context()357	for message := range claim.Messages() {358		// Stop consuming if one of the other handler goroutines already hit the message limit359		select {360		case <-h.done:361			return nil362		default:363		}364		consumeFunction := h.consumeJSON365		if h.withAVRO {366			consumeFunction = h.consumeAVRO367		}368		msg, msgJSON, err := consumeFunction(message)369		if err != nil {370			return err371		}372		// Pass filter373		if h.keyFilter != "" && msg.Key != h.keyFilter {374			venom.Info(ctx, "ignore message with key: %s", msg.Key)375			continue376		}377		h.mutex.Lock()378		// Check if message limit is hit *before* adding new message379		messagesLen := len(h.messages)380		if h.messageLimit > 0 && messagesLen >= h.messageLimit {381			h.mutex.Unlock()382			h.messageLimitReached(ctx)383			return nil384		}385		h.messages = append(h.messages, msg)386		h.messagesJSON = append(h.messagesJSON, msgJSON)387		h.mutex.Unlock()388		messagesLen++389		if h.markOffset {390			session.MarkMessage(message, "")391		}392		session.MarkMessage(message, "delivered")393		// Check if the message limit is hit394		if h.messageLimit > 0 && messagesLen >= h.messageLimit {395			h.messageLimitReached(ctx)396			return nil397		}398	}399	return nil400}401func (h *handler) messageLimitReached(ctx context.Context) {402	venom.Info(ctx, "message limit reached")403	// Signal to other handler goroutines that they should stop consuming messages.404	// Only checking the message length isn't enough in case of filtering by key and never reaching the check.405	// Using sync.Once to prevent panics from multiple channel closings.406	h.once.Do(func() { close(h.done) })407}408func (h *handler) consumeJSON(message *sarama.ConsumerMessage) (Message, interface{}, error) {409	msg := Message{410		Topic: message.Topic,411		Key:   string(message.Key),412		Value: string(message.Value),413	}414	msgJSON := MessageJSON{415		Topic: message.Topic,416	}417	convertFromMessage2JSON(&msg, &msgJSON)418	return msg, msgJSON, nil419}420func (h *handler) consumeAVRO(message *sarama.ConsumerMessage) (Message, interface{}, error) {421	msg := Message{422		Topic: message.Topic,423		Key:   string(message.Key),424	}425	msgJSON := MessageJSON{426		Topic: message.Topic,427	}428	// 1. Get Schema ID429	avroMsg, schemaID := GetMessageAvroID(message.Value)430	schema, err := h.schemaReg.GetSchemaByID(schemaID)431	if err != nil {432		return msg, nil, fmt.Errorf("can't get Schema with ID %d: %w", schemaID, err)433	}434	// 2. Decode Avro Msg435	value, err := ConvertFromAvro(avroMsg, schema)436	if err != nil {437		return msg, nil, fmt.Errorf("can't get value from Avro message: %w", err)438	}439	msg.Value = value440	convertFromMessage2JSON(&msg, &msgJSON)441	return msg, msgJSON, nil442}443func convertFromMessage2JSON(message *Message, msgJSON *MessageJSON) {444	// unmarshall the message.Value445	listMessageJSON := []MessageJSON{}446	// try to unmarshall into an array447	if err := venom.JSONUnmarshal([]byte(message.Value), &listMessageJSON); err != nil {448		// try to unmarshall into a map449		mapMessageJSON := map[string]interface{}{}450		if err2 := venom.JSONUnmarshal([]byte(message.Value), &mapMessageJSON); err2 != nil {451			// try to unmarshall into a string452			msgJSON.Value = message.Value453		} else {454			msgJSON.Value = mapMessageJSON455		}456	} else {457		msgJSON.Value = listMessageJSON458	}459	// unmarshall the message.Key460	listMessageJSON = []MessageJSON{}461	// try to unmarshall into an array462	if err := venom.JSONUnmarshal([]byte(message.Key), &listMessageJSON); err != nil {463		// try to unmarshall into a map464		mapMessageJSON := map[string]interface{}{}465		if err2 := venom.JSONUnmarshal([]byte(message.Key), &mapMessageJSON); err2 != nil {466			// try to unmarshall into a string467			msgJSON.Key = message.Key468		} else {469			msgJSON.Key = mapMessageJSON470		}471	} else {472		msgJSON.Key = listMessageJSON473	}474}...

grpc.go

Source:grpc.go

...240		result.Err = handle.err.Error()241	}242	// parse stdout as JSON243	var outJSONArray []interface{}244	if err := venom.JSONUnmarshal([]byte(result.Systemout), &outJSONArray); err != nil {245		outJSONMap := map[string]interface{}{}246		if err2 := venom.JSONUnmarshal([]byte(result.Systemout), &outJSONMap); err2 == nil {247			result.SystemoutJSON = outJSONMap248		}249	} else {250		result.SystemoutJSON = outJSONArray251	}252	// parse stderr output as JSON253	var errJSONArray []interface{}254	if err := venom.JSONUnmarshal([]byte(result.Systemout), &errJSONArray); err != nil {255		errJSONMap := map[string]interface{}{}256		if err2 := venom.JSONUnmarshal([]byte(result.Systemout), &errJSONMap); err2 == nil {257			result.SystemoutJSON = errJSONMap258		}259	} else {260		result.SystemoutJSON = errJSONArray261	}262	return result, nil263}...

exec.go

Source:exec.go

...171	result.TimeSeconds = elapsed.Seconds()172	result.Systemout = venom.RemoveNotPrintableChar(strings.TrimRight(result.Systemout, "\n"))173	result.Systemerr = venom.RemoveNotPrintableChar(strings.TrimRight(result.Systemerr, "\n"))174	var outJSON interface{}175	if err := venom.JSONUnmarshal([]byte(result.Systemout), &outJSON); err == nil {176		result.SystemoutJSON = outJSON177	}178	var errJSON interface{}179	if err := venom.JSONUnmarshal([]byte(result.Systemerr), &errJSON); err == nil {180		result.SystemerrJSON = errJSON181	}182	return result, nil183}...

JSONUnmarshal

Using AI Code Generation

1import (2func main() {3    var result map[string]interface{}4    json.Unmarshal([]byte(`{"Name":"Venom","Age":2}`), &result)5    fmt.Println(result["Name"])6}7import (8func main() {9    var result map[string]interface{}10    json.Unmarshal([]byte(`{"Name":"Venom","Age":2}`), &result)11    fmt.Println(result["Age"])12}13import (14func main() {15    var result map[string]interface{}16    json.Unmarshal([]byte(`{"Name":"Venom","Age":2}`), &result)17    fmt.Println(result)18}19import (20func main() {21    var result map[string]interface{}22    json.Unmarshal([]byte(`{"Name":"Venom","Age":2}`), &result)23    fmt.Println(result["Name"])24    fmt.Println(result["Age"])25    fmt.Println(result)26}27import (28func main() {29    var result map[string]interface{}30    json.Unmarshal([]byte(`{"Name":"Venom","Age":2}`), &result)31    fmt.Println(result["Name"])32    fmt.Println(result["Age"])33    fmt.Println(result)34    fmt.Println(result["Weight"])35}36import (37func main() {38    var result map[string]interface{}39    json.Unmarshal([]byte(`{"Name":"Venom","Age":2

JSONUnmarshal

Using AI Code Generation

1import (2type Venom struct {3}4func main() {5	v := Venom{6	}7	fmt.Println(v)8	bs, _ := json.Marshal(v)9	fmt.Println(string(bs))10}11import (12type Venom struct {13}14func main() {15	bs := []byte(`{"Name":"Venom","Origin":"Earth"}`)16	json.Unmarshal(bs, &v)17	fmt.Println(v)18}19import (20type Venom struct {21}22func main() {23	v := Venom{24	}25	fmt.Println(v)26	bs, err := toJSON(v)27	if err != nil {28		log.Println(err)29	}30	fmt.Println(string(bs))31}32func toJSON(a interface{}) ([]byte, error) {33	bs, err := json.Marshal(a)34	if err != nil {35		return []byte{}, fmt.Errorf("There was an error in toJSON %v", err)36	}37}38import (39type Venom struct {40}41func main() {42	v := Venom{43	}44	fmt.Println(v)45	bs, err := toJSON(v)46	if err != nil {47		log.Println(err)48	}49	fmt.Println(string(bs))50}51func toJSON(a interface{}) ([]byte, error) {52	bs, err := json.Marshal(a)53	if err != nil {54		return []byte{}, fmt.Errorf("There was an error in toJSON %v", err)55	}56}57import (58type Venom struct {59}60func main() {61	v := Venom{62	}63	fmt.Println(v)

JSONUnmarshal

Using AI Code Generation

1import (2type venom struct {3}4func main() {5	var s = `{"First":"Eddie","Last":"Brock","Age":32}`6	err := json.Unmarshal([]byte(s), &p)7	if err != nil {8		fmt.Println(err)9	}10	fmt.Println(p.First)11	fmt.Println(p.Last)12	fmt.Println(p.Age)13}14func (v venom) JSONMarshal() ([]byte, error)15import (16type venom struct {17}18func main() {19	var p1 = venom{20	}21	bs, err := json.Marshal(p1)22	if err != nil {23		fmt.Println(err)24	}25	fmt.Println(string(bs))26}27{"First":"Eddie","Last":"Brock","Age":32}28func (v venom) JSONMarshalIndent() ([]byte, error)29import (30type venom struct {31}

JSONUnmarshal

Using AI Code Generation

1import (2type venom struct {3}4func main() {5	jsonFile, err := os.Open("venom.json")6	if err != nil {7		fmt.Println(err)8	}9	defer jsonFile.Close()10	byteValue, _ := ioutil.ReadAll(jsonFile)11	json.Unmarshal(byteValue, &v)12	fmt.Println(v.Name)13	fmt.Println(v.Age)14}15import (16type venom struct {17}18func main() {19	v := venom{20	}21	vBytes, err := json.Marshal(v)22	if err != nil {23		fmt.Println(err)24	}25	vString := string(vBytes)26	fmt.Println(vString)27}28{"name":"Venom","age":35}29import (30type venom struct {31}32func main() {33	v := venom{34	}35	vBytes, err := json.MarshalIndent(v, "", " ")36	if err != nil {37		fmt.Println(err)38	}39	vString := string(vBytes)40	fmt.Println(vString)41}42{

JSONUnmarshal

Using AI Code Generation

1import (2type venom struct {3}4func main() {5	s := `{"Name":"Venom","Age":30,"Height":6.2}`6	err := json.Unmarshal([]byte(s), &v)7	if err != nil {8		fmt.Println(err)9	}10	fmt.Println(v)11}12{Venom 30 6.2}

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