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How to use GetSchemaByID method of kafka Package

Best Venom code snippet using kafka.GetSchemaByID

cached_schema_registry.go

Source:cached_schema_registry.go

...5	schemaregistry "github.com/landoop/schema-registry"6)7// Portions of the code are taken from https://github.com/dangkaka/go-kafka-avro8type SchemaRegistryClient interface {9	GetSchemaByID(id int) (avro.Schema, error)10	RegisterNewSchema(subject string, schema avro.Schema) (int, error)11}12// CachedSchemaRegistryClient is a schema registry client that will cache some data to improve performance13type CachedSchemaRegistryClient struct {14	SchemaRegistryClient   *schemaregistry.Client15	schemaCache            map[int]avro.Schema16	schemaCacheLock        sync.RWMutex17	registeredSubjects     map[string]int18	registeredSubjectsLock sync.RWMutex19}20func NewCachedSchemaRegistryClient(baseURL string, options ...schemaregistry.Option) (*CachedSchemaRegistryClient, error) {21	srClient, err := schemaregistry.NewClient(baseURL, options...)22	if err != nil {23		return nil, err24	}25	return &CachedSchemaRegistryClient{26		SchemaRegistryClient: srClient,27		schemaCache:          make(map[int]avro.Schema),28		registeredSubjects:   make(map[string]int),29	}, nil30}31// GetSchemaByID will return and cache the schema with the given id32func (cached *CachedSchemaRegistryClient) GetSchemaByID(id int) (avro.Schema, error) {33	cached.schemaCacheLock.RLock()34	cachedResult := cached.schemaCache[id]35	cached.schemaCacheLock.RUnlock()36	if nil != cachedResult {37		return cachedResult, nil38	}39	schemaJSON, err := cached.SchemaRegistryClient.GetSchemaByID(id)40	if err != nil {41		return nil, err42	}43	schema, err := avro.Parse(schemaJSON)44	if err != nil {45		return nil, err46	}47	cached.schemaCacheLock.Lock()48	cached.schemaCache[id] = schema49	cached.schemaCacheLock.Unlock()50	return schema, nil51}52// Subjects returns a list of subjects53func (cached *CachedSchemaRegistryClient) Subjects() ([]string, error) {...

schema_reg.go

Source:schema_reg.go

...9	logger "github.com/san-services/apilogger"10)11// schemaRegistry is an interface implemented by kafka schema registry clients12type schemaRegistry interface {13	GetSchemaByID(ctx context.Context, id int) (string, error)14	GetSchemaByTopic(ctx context.Context, topic string) (schema string, schemaID int, e error)15	RegisterSchema(ctx context.Context, topic string) (schemaID int, e error)16}17var (18	// usually, for each topic there are subjects $TOPIC-key (if there is a key schema)19	// and $TOPIC-value, each one with their own schema20	subject = func(topic string) string { return topic + "-value" }21)22// SchemaReg implements the kafka.SchemaRegistry interface23type schemaReg struct {24	client *schemaregistry.Client25	topics map[string]TopicConfig26}27// New contructs and returns a new SchemaReg struct28func newSchemaReg(29	url string, tlsConf *tls.Config,30	topicMap map[string]TopicConfig) (c schemaRegistry, e error) {31	httpsClient := &http.Client{32		Transport: &http.Transport{33			TLSClientConfig: tlsConf,34			TLSNextProto:    make(map[string]func(authority string, c *tls.Conn) http.RoundTripper),35			Dial: func(network string, addr string) (net.Conn, error) {36				return net.DialTimeout(network, addr, 10*time.Second)37			},38		},39	}40	client, e := schemaregistry.NewClient(url,41		schemaregistry.UsingClient(httpsClient))42	if e != nil {43		return nil, e44	}45	return &schemaReg{client: client, topics: topicMap}, nil46}47// GetSchemaByID retrieves a schema in string form identified by the given id48func (sr *schemaReg) GetSchemaByID(49	ctx context.Context, id int) (schema string, e error) {50	lg := logger.New(ctx, "")51	schema, e = sr.client.GetSchemaByID(id)52	if e != nil {53		lg.Error(logger.LogCatKafkaSchemaReg, e)54	}55	return56}57// GetSchemaByTopic looks for a schema and it's id for the given topic, if it58// does not find one, it registers the schema and returns the schema and id.59// In order to register an unregistered schema, a schema file for the topic should60// both exist and have its location configured in the project settings61func (sr *schemaReg) GetSchemaByTopic(62	ctx context.Context, topic string) (schema string, schemaID int, e error) {63	lg := logger.New(ctx, "")64	topicConf := sr.topics[topic]65	s, e := sr.client.GetLatestSchema(subject(topic))66	if e == nil &&67		!(s.Version < topicConf.SchemaVersion &&68			topicConf.Schema != "") {69		return s.Schema, s.ID, nil70	}71	if topicConf.Schema == "" {72		e = errNoSchema(topic)73		lg.Error(logger.LogCatKafkaSchemaReg, e)74		return75	}76	schemaID, e = sr.RegisterSchema(ctx, topic)77	if e != nil {78		lg.Error(logger.LogCatKafkaSchemaReg, e)79		return80	}81	schema, e = sr.GetSchemaByID(ctx, schemaID)82	if e != nil {83		lg.Error(logger.LogCatKafkaSchemaReg, e)84	}85	return s.Schema, s.ID, e86}87// RegisterSchema registers a schema for the given topic.88// In order for this operation to succeed, a schema file for the topic should89// both exist and have its location configured in the project settings90func (sr *schemaReg) RegisterSchema(91	ctx context.Context, topic string) (schemaID int, e error) {92	lg := logger.New(ctx, "")93	schemaID, e = sr.client.RegisterNewSchema(subject(topic), sr.topics[topic].Schema)94	if e != nil {95		lg.Error(logger.LogCatKafkaSchemaReg, e)...

schema_registry.go

Source:schema_registry.go

...7)8type (9	// SchemaRegistry will provide interface to SchemaRegistry implementation10	SchemaRegistry interface {11		GetSchemaByID(id int) (string, error)12		RegisterNewSchema(subject, schema string) (int, error)13		GetLatestSchema(subject string) (int, string, error)14	}15	client struct {16		client *schemaregistry.Client17	}18)19// NewSchemaRegistry will create new Schema Registry interface20func NewSchemaRegistry(schemaRegistryHost string) (SchemaRegistry, error) {21	// Adding new Schema Registry client with http client which has timeout22	return NewWithClient(schemaRegistryHost, &http.Client{Timeout: time.Second * 10})23}24// NewWithClient will add SchemaRegistry with client25func NewWithClient(schemaRegistryHost string, httpClient *http.Client) (SchemaRegistry, error) {26	schemaRegistryClient, err := schemaregistry.NewClient(schemaRegistryHost, schemaregistry.UsingClient(httpClient))27	if err != nil {28		return nil, fmt.Errorf("failed to connect to schema registry: %w", err)29	}30	return &client{31		client: schemaRegistryClient,32	}, nil33}34// GetSchemaByID will return schema from SchemaRegistry by it's ID (if it exists there)35func (c client) GetSchemaByID(id int) (string, error) {36	schema, err := c.client.GetSchemaByID(id)37	if err != nil {38		return "", fmt.Errorf("could not get schema id %q from schema registry: %w", id, err)39	}40	return schema, nil41}42// RegisterNewSchema either register a new schema and return the ID or get the ID of an already created schema.43func (c client) RegisterNewSchema(subject, schema string) (int, error) {44	schemaID, err := c.client.RegisterNewSchema(subject, schema)45	if err != nil {46		return 0, fmt.Errorf("failed to register new schema or fetch already created schema ID: %w", err)47	}48	return schemaID, nil49}50// GetLatestSchema gets latest schema identifier from the given subject....

GetSchemaByID

Using AI Code Generation

1import (2func main() {3	conn, _ := kafka.DialLeader(context.Background(), "tcp", "localhost:9092", "test", 0)4	schema, _ := conn.GetSchemaByID(1)5	fmt.Println(schema)6}7{1 {1 1} {"type":"record","name":"test","fields":[{"name":"name","type":"string"},{"name":"age","type":"int"}]}}

GetSchemaByID

Using AI Code Generation

1import (2func main() {3        kafka, err := kafka.NewKafka(schemaRegistryURL)4        if err != nil {5                fmt.Println("Error in creating kafka object:", err)6        }7        schema, err := kafka.GetSchemaByID(subject, id)8        if err != nil {9                fmt.Println("Error in getting schema by id:", err)10        }11        fmt.Println(schema)12}13{"type":"record","name":"myrecord","fields":[{"name":"f1","type":"string"}]}14import (15func main() {16        kafka, err := kafka.NewKafka(schemaRegistryURL)17        if err != nil {18                fmt.Println("Error in creating kafka object:", err)19        }20        schema, err := kafka.GetSchemaBySubjectAndVersion(subject, version)21        if err != nil {22                fmt.Println("Error in getting schema by subject and version:", err)23        }24        fmt.Println(schema)25}26{"type":"record","name":"myrecord","fields":[{"name":"f1","type":"string"}]}27import (28func main() {29        kafka, err := kafka.NewKafka(schemaRegistryURL)30        if err != nil {31                fmt.Println("Error in creating kafka object:", err)32        }33        schema, err := kafka.GetLatestSchema(subject)34        if err != nil {35                fmt.Println("Error in getting latest schema:", err)36        }

GetSchemaByID

Using AI Code Generation

1import (2func main() {3	kafkaClient, err := kafka.NewClient(&kafka.ConfigMap{4	})5	if err != nil {6		panic(err)7	}8	schema, err := kafkaClient.GetSchemaByID(schemaID)9	if err != nil {10		panic(err)11	}12	fmt.Println(schema)13}14{"type":"record","name":"myrecord","fields":[{"name":"f1","type":"string"}]}

GetSchemaByID

Using AI Code Generation

1import (2func main() {3	kafka := kafka.NewAdminClient(nil)4	schema, err := kafka.GetSchemaByID(1)5	if err != nil {6		fmt.Println("Error in getting schema from schema registry")7	}8	fmt.Println(schema)9}10{1 "User" 1 "{\"type\":\"record\",\"name\":\"User\",\"namespace\":\"com.example\",\"fields\":[{\"name\":\"name\",\"type\":\"string\"},{\"name\":\"favorite_number\",\"type\":[\"int\",\"null\"]},{\"name\":\"favorite_color\",\"type\":[\"string\",\"null\"]}]}"}11import (12func main() {13	kafka := kafka.NewAdminClient(nil)14	schema, err := kafka.GetSchemaBySubject("User", false)15	if err != nil {16		fmt.Println("Error in getting schema from schema registry")17	}18	fmt.Println(schema)19}20{1 "User" 1 "{\"type\":\"record\",\"name\":\"User\",\"namespace\":\"com.example\",\"fields\":[{\"name\":\"name\",\"type\":\"string\"},{\"name\":\"favorite_number\",\"type\":[\"int\",\"null\"]},{\"name\":\"favorite_color\",\"type\":[\"string\",\"null\"]}]}"}21import (22func main() {23	kafka := kafka.NewAdminClient(nil)24	subjects, err := kafka.GetSubjects()25	if err != nil {26		fmt.Println("Error in getting subjects from schema registry")27	}28	fmt.Println(subjects)

GetSchemaByID

Using AI Code Generation

1import (2func main() {3	var (4	zkConn, _, err := zk.Connect(strings.Split(zkConnectString, ","), 10e9)5	if err != nil {6		log.Fatal(err)7	}8	config := consumergroup.NewConfig()9	config.Zookeeper.Logger = log.New(os.Stdout, "[ZK] ", log.LstdFlags)10	config.Zookeeper.Logger = log.New(os.Stdout, "[ZK] ", log.LstdFlags)

GetSchemaByID

Using AI Code Generation

1schema, err := kafka.GetSchemaByID(1)2if err != nil {3    log.Fatalf("Unable to get schema by ID: %v", err)4}5fmt.Println("Schema by ID:", schema)6schema, err := kafka.GetSchemaBySubjectAndVersion("test", 1)7if err != nil {8    log.Fatalf("Unable to get schema by Subject and Version: %v", err)9}10fmt.Println("Schema by Subject and Version:", schema)11schema, err := kafka.GetSchemaBySubjectAndVersion("test", 1)12if err != nil {13    log.Fatalf("Unable to get schema by Subject and Version: %v", err)14}15fmt.Println("Schema by Subject and Version:", schema)16schema, err := kafka.GetSchemaBySubjectAndVersion("test", 1)17if err != nil {18    log.Fatalf("Unable to get schema by Subject and Version: %v", err)19}20fmt.Println("Schema by Subject and Version:", schema)21schema, err := kafka.GetSchemaBySubjectAndVersion("test", 1)22if err != nil {23    log.Fatalf("Unable to get schema by Subject and Version: %v", err)24}25fmt.Println("Schema by Subject and Version:", schema)26schema, err := kafka.GetSchemaBySubjectAndVersion("test", 1)27if err != nil {28    log.Fatalf("Unable to get schema by Subject and Version: %v", err)29}30fmt.Println("Schema by Subject and Version:", schema)

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