#200 Update schema subject object (#229)

* Return id, version, schema, and subject after creating a new schema

* Throw 422 error code if incoming new schema is unprocessable entity due to invalid fields

* Return 409/Conflict error code if schema is duplicate. Change endpoint of createNewSchema method

* Fix submitting new subject or new version if the subject already exists

* Include schema type to schema objects. By default it's AVRO

* [ISSUE-200] Update FE to support new version of api

* Add one more schema-registry with version 5.5.0 to docker-compose files and app properties

* Upgrade Confluent service versions in tests up to 5.5.0

* Set schemaType is required and ignore when submitting to Schema Registry if it's NULL

Co-authored-by: Oleg Shuralev <workshur@gmail.com>

docker/kafka-clusters-only.yaml

@@ -86,7 +86,25 @@ services:
       SCHEMA_REGISTRY_LOG4J_ROOT_LOGLEVEL: INFO
       SCHEMA_REGISTRY_KAFKASTORE_TOPIC: _schemas
     ports:
-    - 8081:8081
+    - 8085:8085
+
+  schemaregistry1:
+    image: confluentinc/cp-schema-registry:5.5.0
+    ports:
+      - 18085:8085
+    depends_on:
+      - zookeeper1
+      - kafka1
+    environment:
+      SCHEMA_REGISTRY_KAFKASTORE_BOOTSTRAP_SERVERS: PLAINTEXT://kafka1:29092
+      SCHEMA_REGISTRY_KAFKASTORE_CONNECTION_URL: zookeeper1:2181
+      SCHEMA_REGISTRY_KAFKASTORE_SECURITY_PROTOCOL: PLAINTEXT
+      SCHEMA_REGISTRY_HOST_NAME: schemaregistry1
+      SCHEMA_REGISTRY_LISTENERS: http://schemaregistry1:8085
+
+      SCHEMA_REGISTRY_SCHEMA_REGISTRY_INTER_INSTANCE_PROTOCOL: "http"
+      SCHEMA_REGISTRY_LOG4J_ROOT_LOGLEVEL: INFO
+      SCHEMA_REGISTRY_KAFKASTORE_TOPIC: _schemas
 
   kafka-connect0:
     image: confluentinc/cp-kafka-connect:5.2.4

docker/kafka-ui.yaml

@@ -96,6 +96,24 @@ services:
       SCHEMA_REGISTRY_LOG4J_ROOT_LOGLEVEL: INFO
       SCHEMA_REGISTRY_KAFKASTORE_TOPIC: _schemas
 
+  schemaregistry1:
+    image: confluentinc/cp-schema-registry:5.5.0
+    ports:
+      - 18085:8085
+    depends_on:
+      - zookeeper1
+      - kafka1
+    environment:
+      SCHEMA_REGISTRY_KAFKASTORE_BOOTSTRAP_SERVERS: PLAINTEXT://kafka1:29092
+      SCHEMA_REGISTRY_KAFKASTORE_CONNECTION_URL: zookeeper1:2181
+      SCHEMA_REGISTRY_KAFKASTORE_SECURITY_PROTOCOL: PLAINTEXT
+      SCHEMA_REGISTRY_HOST_NAME: schemaregistry1
+      SCHEMA_REGISTRY_LISTENERS: http://schemaregistry1:8085
+
+      SCHEMA_REGISTRY_SCHEMA_REGISTRY_INTER_INSTANCE_PROTOCOL: "http"
+      SCHEMA_REGISTRY_LOG4J_ROOT_LOGLEVEL: INFO
+      SCHEMA_REGISTRY_KAFKASTORE_TOPIC: _schemas
+
   kafka-connect0:
     image: confluentinc/cp-kafka-connect:5.2.4
     ports:

kafka-ui-api/src/main/java/com/provectus/kafka/ui/cluster/exception/DuplicateEntityException.java

@@ -0,0 +1,15 @@
+package com.provectus.kafka.ui.cluster.exception;
+
+import org.springframework.http.HttpStatus;
+
+public class DuplicateEntityException extends CustomBaseException{
+
+    public DuplicateEntityException(String message) {
+        super(message);
+    }
+
+    @Override
+    public HttpStatus getResponseStatusCode() {
+        return HttpStatus.CONFLICT;
+    }
+}

kafka-ui-api/src/main/java/com/provectus/kafka/ui/cluster/exception/UnprocessableEntityException.java

@@ -0,0 +1,15 @@
+package com.provectus.kafka.ui.cluster.exception;
+
+import org.springframework.http.HttpStatus;
+
+public class UnprocessableEntityException extends CustomBaseException{
+
+    public UnprocessableEntityException(String message) {
+        super(message);
+    }
+
+    @Override
+    public HttpStatus getResponseStatusCode() {
+        return HttpStatus.UNPROCESSABLE_ENTITY;
+    }
+}

kafka-ui-api/src/main/java/com/provectus/kafka/ui/cluster/mapper/ClusterMapper.java

@@ -2,7 +2,8 @@ package com.provectus.kafka.ui.cluster.mapper;
 
 import com.provectus.kafka.ui.cluster.config.ClustersProperties;
 import com.provectus.kafka.ui.cluster.model.*;
-import com.provectus.kafka.ui.cluster.model.InternalCompatibilityCheck;
+import com.provectus.kafka.ui.cluster.model.schemaregistry.InternalCompatibilityCheck;
+import com.provectus.kafka.ui.cluster.model.schemaregistry.InternalCompatibilityLevel;
 import com.provectus.kafka.ui.model.*;
 import java.util.Properties;
 import org.mapstruct.Mapper;

kafka-ui-api/src/main/java/com/provectus/kafka/ui/cluster/model/InternalCompatibilityCheck.java → kafka-ui-api/src/main/java/com/provectus/kafka/ui/cluster/model/schemaregistry/InternalCompatibilityCheck.java

@@ -1,4 +1,4 @@
-package com.provectus.kafka.ui.cluster.model;
+package com.provectus.kafka.ui.cluster.model.schemaregistry;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.Data;

kafka-ui-api/src/main/java/com/provectus/kafka/ui/cluster/model/InternalCompatibilityLevel.java → kafka-ui-api/src/main/java/com/provectus/kafka/ui/cluster/model/schemaregistry/InternalCompatibilityLevel.java

@@ -1,4 +1,4 @@
-package com.provectus.kafka.ui.cluster.model;
+package com.provectus.kafka.ui.cluster.model.schemaregistry;
 
 import lombok.Data;
 

kafka-ui-api/src/main/java/com/provectus/kafka/ui/cluster/model/schemaregistry/InternalNewSchema.java

@@ -0,0 +1,17 @@
+package com.provectus.kafka.ui.cluster.model.schemaregistry;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.provectus.kafka.ui.model.SchemaType;
+import lombok.Data;
+
+@Data
+public class InternalNewSchema {
+    private String schema;
+    @JsonInclude(JsonInclude.Include.NON_NULL)
+    private SchemaType schemaType;
+
+    public InternalNewSchema(String schema, SchemaType schemaType) {
+        this.schema = schema;
+        this.schemaType = schemaType;
+    }
+}

kafka-ui-api/src/main/java/com/provectus/kafka/ui/cluster/model/schemaregistry/SubjectIdResponse.java

@@ -0,0 +1,8 @@
+package com.provectus.kafka.ui.cluster.model.schemaregistry;
+
+import lombok.Data;
+
+@Data
+public class SubjectIdResponse {
+    private Integer id;
+}

kafka-ui-api/src/main/java/com/provectus/kafka/ui/cluster/service/SchemaRegistryService.java

@@ -1,36 +1,43 @@
 package com.provectus.kafka.ui.cluster.service;
 
+import com.provectus.kafka.ui.cluster.exception.DuplicateEntityException;
 import com.provectus.kafka.ui.cluster.exception.NotFoundException;
+import com.provectus.kafka.ui.cluster.exception.UnprocessableEntityException;
 import com.provectus.kafka.ui.cluster.mapper.ClusterMapper;
 import com.provectus.kafka.ui.cluster.model.ClustersStorage;
-import com.provectus.kafka.ui.cluster.model.InternalCompatibilityCheck;
-import com.provectus.kafka.ui.cluster.model.InternalCompatibilityLevel;
-import com.provectus.kafka.ui.model.CompatibilityCheckResponse;
-import com.provectus.kafka.ui.model.CompatibilityLevel;
-import com.provectus.kafka.ui.model.NewSchemaSubject;
-import com.provectus.kafka.ui.model.SchemaSubject;
-import java.util.Formatter;
+import com.provectus.kafka.ui.cluster.model.KafkaCluster;
+import com.provectus.kafka.ui.cluster.model.schemaregistry.InternalCompatibilityCheck;
+import com.provectus.kafka.ui.cluster.model.schemaregistry.InternalCompatibilityLevel;
+import com.provectus.kafka.ui.cluster.model.schemaregistry.InternalNewSchema;
+import com.provectus.kafka.ui.cluster.model.schemaregistry.SubjectIdResponse;
+import com.provectus.kafka.ui.model.*;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.log4j.Log4j2;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpEntity;
-import org.springframework.http.HttpStatus;
+import org.jetbrains.annotations.NotNull;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
 import org.springframework.web.reactive.function.BodyInserters;
+import org.springframework.web.reactive.function.client.ClientResponse;
 import org.springframework.web.reactive.function.client.WebClient;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 
-import java.util.Arrays;
-import java.util.List;
+import java.util.Formatter;
 import java.util.Objects;
+import java.util.function.Function;
+
+import static org.springframework.http.HttpStatus.NOT_FOUND;
+import static org.springframework.http.HttpStatus.UNPROCESSABLE_ENTITY;
 
 @Service
 @Log4j2
 @RequiredArgsConstructor
 public class SchemaRegistryService {
+    public static final String NO_SUCH_SCHEMA_VERSION = "No such schema %s with version %s";
+    public static final String NO_SUCH_SCHEMA = "No such schema %s";
+    public static final String NO_SUCH_CLUSTER = "No such cluster";
+
     private static final String URL_SUBJECTS = "/subjects";
     private static final String URL_SUBJECT = "/subjects/{schemaName}";
     private static final String URL_SUBJECT_VERSIONS = "/subjects/{schemaName}/versions";
@@ -45,7 +52,7 @@ public class SchemaRegistryService {
         var allSubjectNames = getAllSubjectNames(clusterName);
         return allSubjectNames
                 .flatMapMany(Flux::fromArray)
-                .flatMap(subject -> getLatestSchemaSubject(clusterName, subject));
+                .flatMap(subject -> getLatestSchemaVersionBySubject(clusterName, subject));
     }
 
     public Mono<String[]> getAllSubjectNames(String clusterName) {
@@ -56,7 +63,7 @@ public class SchemaRegistryService {
                         .bodyToMono(String[].class)
                         .doOnError(log::error)
                 )
-                .orElse(Mono.error(new NotFoundException("No such cluster")));
+                .orElse(Mono.error(new NotFoundException(NO_SUCH_CLUSTER)));
     }
 
     public Flux<SchemaSubject> getAllVersionsBySubject(String clusterName, String subject) {
@@ -69,19 +76,17 @@ public class SchemaRegistryService {
                 .map(cluster -> webClient.get()
                         .uri(cluster.getSchemaRegistry() + URL_SUBJECT_VERSIONS, schemaName)
                         .retrieve()
-                        .onStatus(HttpStatus.NOT_FOUND::equals,
-                            resp -> Mono.error(
-                                new NotFoundException(formatted("No such schema %s"))
-                            )
+                        .onStatus(NOT_FOUND::equals,
+                                throwIfNotFoundStatus(formatted(NO_SUCH_SCHEMA))
                         ).bodyToFlux(Integer.class)
-                ).orElse(Flux.error(new NotFoundException("No such cluster")));
+                ).orElse(Flux.error(new NotFoundException(NO_SUCH_CLUSTER)));
     }
 
     public Mono<SchemaSubject> getSchemaSubjectByVersion(String clusterName, String schemaName, Integer version) {
         return this.getSchemaSubject(clusterName, schemaName, String.valueOf(version));
     }
 
-    public Mono<SchemaSubject> getLatestSchemaSubject(String clusterName, String schemaName) {
+    public Mono<SchemaSubject> getLatestSchemaVersionBySubject(String clusterName, String schemaName) {
         return this.getSchemaSubject(clusterName, schemaName, LATEST);
     }
 
@@ -90,13 +95,10 @@ public class SchemaRegistryService {
                 .map(cluster -> webClient.get()
                         .uri(cluster.getSchemaRegistry() + URL_SUBJECT_BY_VERSION, schemaName, version)
                         .retrieve()
-                        .onStatus(HttpStatus.NOT_FOUND::equals,
-                                resp -> Mono.error(
-                                    new NotFoundException(
-                                        formatted("No such schema %s with version %s", schemaName, version)
-                                    )
-                                )
+                        .onStatus(NOT_FOUND::equals,
+                                throwIfNotFoundStatus(formatted(NO_SUCH_SCHEMA_VERSION, schemaName, version))
                         ).bodyToMono(SchemaSubject.class)
+                        .map(this::withSchemaType)
                         .zipWith(getSchemaCompatibilityInfoOrGlobal(clusterName, schemaName))
                         .map(tuple -> {
                             SchemaSubject schema = tuple.getT1();
@@ -105,7 +107,21 @@ public class SchemaRegistryService {
                             return schema;
                         })
                 )
-                .orElseThrow();
+                .orElse(Mono.error(new NotFoundException(NO_SUCH_CLUSTER)));
+    }
+
+    /**
+     * If {@link SchemaSubject#getSchemaType()} is null, then AVRO, otherwise, adds the schema type as is.
+     */
+    @NotNull
+    private SchemaSubject withSchemaType(SchemaSubject s) {
+        SchemaType schemaType = Objects.nonNull(s.getSchemaType()) ? s.getSchemaType() : SchemaType.AVRO;
+        return new SchemaSubject()
+                .schema(s.getSchema())
+                .subject(s.getSubject())
+                .version(s.getVersion())
+                .id(s.getId())
+                .schemaType(schemaType);
     }
 
     public Mono<ResponseEntity<Void>> deleteSchemaSubjectByVersion(String clusterName, String schemaName, Integer version) {
@@ -121,46 +137,71 @@ public class SchemaRegistryService {
                 .map(cluster -> webClient.delete()
                         .uri(cluster.getSchemaRegistry() + URL_SUBJECT_BY_VERSION, schemaName, version)
                         .retrieve()
-                        .onStatus(HttpStatus.NOT_FOUND::equals,
-                                resp -> Mono.error(
-                                    new NotFoundException(
-                                        formatted("No such schema %s with version %s", schemaName, version)
-                                    )
-                                )
+                        .onStatus(NOT_FOUND::equals,
+                                throwIfNotFoundStatus(formatted(NO_SUCH_SCHEMA_VERSION, schemaName, version))
                         ).toBodilessEntity()
-                ).orElse(Mono.error(new NotFoundException("No such cluster")));
+                ).orElse(Mono.error(new NotFoundException(NO_SUCH_CLUSTER)));
     }
 
-    public Mono<ResponseEntity<Void>> deleteSchemaSubject(String clusterName, String schemaName) {
+    public Mono<ResponseEntity<Void>> deleteSchemaSubjectEntirely(String clusterName, String schemaName) {
         return clustersStorage.getClusterByName(clusterName)
                 .map(cluster -> webClient.delete()
                         .uri(cluster.getSchemaRegistry() + URL_SUBJECT, schemaName)
                         .retrieve()
-                        .onStatus(HttpStatus.NOT_FOUND::equals,
-                            resp -> Mono.error(
-                                new NotFoundException(
-                                    formatted("No such schema %s", schemaName)
-                                )
-                            )
+                        .onStatus(NOT_FOUND::equals, throwIfNotFoundStatus(formatted(NO_SUCH_SCHEMA, schemaName))
                         )
                         .toBodilessEntity())
-                .orElse(Mono.error(new NotFoundException("No such cluster")));
+                .orElse(Mono.error(new NotFoundException(NO_SUCH_CLUSTER)));
     }
 
-    public Mono<ResponseEntity<SchemaSubject>> createNewSubject(String clusterName, String schemaName, Mono<NewSchemaSubject> newSchemaSubject) {
-        return clustersStorage.getClusterByName(clusterName)
-                .map(cluster -> webClient.post()
-                        .uri(cluster.getSchemaRegistry() + URL_SUBJECT_VERSIONS, schemaName)
-                        .contentType(MediaType.APPLICATION_JSON)
-                        .body(BodyInserters.fromPublisher(newSchemaSubject, NewSchemaSubject.class))
-                        .retrieve()
-                        .onStatus(HttpStatus.NOT_FOUND::equals,
-                                resp -> Mono.error(
-                                    new NotFoundException(formatted("No such schema %s", schemaName)))
-                        )
-                        .toEntity(SchemaSubject.class)
-                        .log())
-                .orElse(Mono.error(new NotFoundException("No such cluster")));
+    /**
+     * Checks whether the provided schema duplicates the previous or not, creates a new schema
+     * and then returns the whole content by requesting its latest version.
+     */
+    public Mono<SchemaSubject> registerNewSchema(String clusterName, Mono<NewSchemaSubject> newSchemaSubject) {
+        return newSchemaSubject
+                .flatMap(schema -> {
+                    SchemaType schemaType = SchemaType.AVRO == schema.getSchemaType() ? null : schema.getSchemaType();
+                    Mono<InternalNewSchema> newSchema = Mono.just(new InternalNewSchema(schema.getSchema(), schemaType));
+                    String subject = schema.getSubject();
+                    return clustersStorage.getClusterByName(clusterName)
+                            .map(KafkaCluster::getSchemaRegistry)
+                            .map(schemaRegistryUrl -> checkSchemaOnDuplicate(subject, newSchema, schemaRegistryUrl)
+                                    .flatMap(s -> submitNewSchema(subject, newSchema, schemaRegistryUrl))
+                                    .flatMap(resp -> getLatestSchemaVersionBySubject(clusterName, subject))
+                            )
+                            .orElse(Mono.error(new NotFoundException(NO_SUCH_CLUSTER)));
+                });
+    }
+
+    @NotNull
+    private Mono<SubjectIdResponse> submitNewSchema(String subject, Mono<InternalNewSchema> newSchemaSubject, String schemaRegistryUrl) {
+        return webClient.post()
+                .uri(schemaRegistryUrl + URL_SUBJECT_VERSIONS, subject)
+                .contentType(MediaType.APPLICATION_JSON)
+                .body(BodyInserters.fromPublisher(newSchemaSubject, InternalNewSchema.class))
+                .retrieve()
+                .onStatus(UNPROCESSABLE_ENTITY::equals, r -> Mono.error(new UnprocessableEntityException("Invalid params")))
+                .bodyToMono(SubjectIdResponse.class);
+    }
+
+    @NotNull
+    private Mono<SchemaSubject> checkSchemaOnDuplicate(String subject, Mono<InternalNewSchema> newSchemaSubject, String schemaRegistryUrl) {
+        return webClient.post()
+                .uri(schemaRegistryUrl + URL_SUBJECT, subject)
+                .contentType(MediaType.APPLICATION_JSON)
+                .body(BodyInserters.fromPublisher(newSchemaSubject, InternalNewSchema.class))
+                .retrieve()
+                .onStatus(NOT_FOUND::equals, res -> Mono.empty())
+                .onStatus(UNPROCESSABLE_ENTITY::equals, r -> Mono.error(new UnprocessableEntityException("Invalid params")))
+                .bodyToMono(SchemaSubject.class)
+                .filter(s -> Objects.isNull(s.getId()))
+                .switchIfEmpty(Mono.error(new DuplicateEntityException("Such schema already exists")));
+    }
+
+    @NotNull
+    private Function<ClientResponse, Mono<? extends Throwable>> throwIfNotFoundStatus(String formatted) {
+        return resp -> Mono.error(new NotFoundException(formatted));
     }
 
     /**
@@ -178,10 +219,10 @@ public class SchemaRegistryService {
                             .contentType(MediaType.APPLICATION_JSON)
                             .body(BodyInserters.fromPublisher(compatibilityLevel, CompatibilityLevel.class))
                             .retrieve()
-                            .onStatus(HttpStatus.NOT_FOUND::equals,
-                                    resp -> Mono.error(new NotFoundException(formatted("No such schema %s", schemaName))))
+                            .onStatus(NOT_FOUND::equals,
+                                    throwIfNotFoundStatus(formatted(NO_SUCH_SCHEMA, schemaName)))
                             .bodyToMono(Void.class);
-                }).orElse(Mono.error(new NotFoundException("No such cluster")));
+                }).orElse(Mono.error(new NotFoundException(NO_SUCH_CLUSTER)));
     }
 
     public Mono<Void> updateSchemaCompatibility(String clusterName, Mono<CompatibilityLevel> compatibilityLevel) {
@@ -217,12 +258,11 @@ public class SchemaRegistryService {
                         .contentType(MediaType.APPLICATION_JSON)
                         .body(BodyInserters.fromPublisher(newSchemaSubject, NewSchemaSubject.class))
                         .retrieve()
-                        .onStatus(HttpStatus.NOT_FOUND::equals,
-                                resp -> Mono.error(new NotFoundException(formatted("No such schema %s", schemaName))))
+                        .onStatus(NOT_FOUND::equals, throwIfNotFoundStatus(formatted(NO_SUCH_SCHEMA, schemaName)))
                         .bodyToMono(InternalCompatibilityCheck.class)
                         .map(mapper::toCompatibilityCheckResponse)
                         .log()
-                ).orElse(Mono.error(new NotFoundException("No such cluster")));
+                ).orElse(Mono.error(new NotFoundException(NO_SUCH_CLUSTER)));
     }
 
     public String formatted(String str, Object... args) {

kafka-ui-api/src/main/java/com/provectus/kafka/ui/rest/MetricsRestController.java

@@ -106,7 +106,7 @@ public class MetricsRestController implements ApiClustersApi {
 
     @Override
     public Mono<ResponseEntity<SchemaSubject>> getLatestSchema(String clusterName, String subject, ServerWebExchange exchange) {
-        return schemaRegistryService.getLatestSchemaSubject(clusterName, subject).map(ResponseEntity::ok);
+        return schemaRegistryService.getLatestSchemaVersionBySubject(clusterName, subject).map(ResponseEntity::ok);
     }
 
     @Override
@@ -138,14 +138,16 @@ public class MetricsRestController implements ApiClustersApi {
 
     @Override
     public Mono<ResponseEntity<Void>> deleteSchema(String clusterName, String subjectName, ServerWebExchange exchange) {
-        return schemaRegistryService.deleteSchemaSubject(clusterName, subjectName);
+        return schemaRegistryService.deleteSchemaSubjectEntirely(clusterName, subjectName);
     }
 
     @Override
-    public Mono<ResponseEntity<SchemaSubject>> createNewSchema(String clusterName, String subject,
+    public Mono<ResponseEntity<SchemaSubject>> createNewSchema(String clusterName,
                                                                @Valid Mono<NewSchemaSubject> newSchemaSubject,
                                                                ServerWebExchange exchange) {
-        return schemaRegistryService.createNewSubject(clusterName, subject, newSchemaSubject);
+        return schemaRegistryService
+                .registerNewSchema(clusterName, newSchemaSubject)
+                .map(ResponseEntity::ok);
     }
 
     @Override

kafka-ui-api/src/main/resources/application-local.yml

@@ -13,7 +13,7 @@ kafka:
       name: secondLocal
       bootstrapServers: localhost:9093
       zookeeper: localhost:2182
-      schemaRegistry: http://localhost:8081
+      schemaRegistry: http://localhost:18085
       kafkaConnect:
         - name: first
           address: http://localhost:8083

kafka-ui-api/src/main/resources/application-sdp.yml

@@ -9,7 +9,7 @@ kafka:
       name: secondLocal
       zookeeper: zookeeper1:2181
       bootstrapServers: kafka1:29092
-      schemaRegistry: http://schemaregistry0:8085
+      schemaRegistry: http://schemaregistry1:8085
   admin-client-timeout: 5000
 zookeeper:
   connection-timeout: 1000

kafka-ui-api/src/test/java/com/provectus/kafka/ui/AbstractBaseTest.java

@@ -18,7 +18,7 @@ public abstract class AbstractBaseTest {
     public static String LOCAL = "local";
     public static String SECOND_LOCAL = "secondLocal";
 
-    private static final String CONFLUENT_PLATFORM_VERSION = "5.2.1";
+    private static final String CONFLUENT_PLATFORM_VERSION = "5.5.0";
 
     public static final KafkaContainer kafka = new KafkaContainer(DockerImageName.parse("confluentinc/cp-kafka").withTag(CONFLUENT_PLATFORM_VERSION))
             .withNetwork(Network.SHARED);

kafka-ui-api/src/test/java/com/provectus/kafka/ui/KafkaConnectServiceTests.java

@@ -249,7 +249,7 @@ public class KafkaConnectServiceTests extends AbstractBaseTest {
                 .exchange()
                 .expectStatus().isOk()
                 .expectBodyList(ConnectorPlugin.class)
-                .value(plugins -> assertEquals(13, plugins.size()));
+                .value(plugins -> assertEquals(14, plugins.size()));
     }
 
     @Test

kafka-ui-api/src/test/java/com/provectus/kafka/ui/SchemaRegistryServiceTests.java

@@ -1,7 +1,9 @@
 package com.provectus.kafka.ui;
 
 import com.provectus.kafka.ui.model.CompatibilityLevel;
+import com.provectus.kafka.ui.model.NewSchemaSubject;
 import com.provectus.kafka.ui.model.SchemaSubject;
+import com.provectus.kafka.ui.model.SchemaType;
 import lombok.extern.log4j.Log4j2;
 import lombok.val;
 import org.junit.jupiter.api.Assertions;
@@ -9,11 +11,13 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.reactive.AutoConfigureWebTestClient;
+import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.web.reactive.server.EntityExchangeResult;
 import org.springframework.test.web.reactive.server.WebTestClient;
 import org.springframework.web.reactive.function.BodyInserters;
+import reactor.core.publisher.Mono;
 
 import java.util.List;
 import java.util.UUID;
@@ -50,6 +54,69 @@ class SchemaRegistryServiceTests extends AbstractBaseTest {
                 .expectStatus().isNotFound();
     }
 
+    /**
+     * It should create a new schema w/o submitting a schemaType field to Schema Registry
+     */
+    @Test
+    void shouldBeBadRequestIfNoSchemaType() {
+        String schema = "{\"subject\":\"%s\",\"schema\":\"{\\\"type\\\": \\\"string\\\"}\"}";
+
+        webTestClient
+                .post()
+                .uri("/api/clusters/{clusterName}/schemas", LOCAL)
+                .contentType(MediaType.APPLICATION_JSON)
+                .body(BodyInserters.fromValue(schema.formatted(subject)))
+                .exchange()
+                .expectStatus().isBadRequest();
+    }
+
+    @Test
+    void shouldReturn409WhenSchemaDuplicatesThePreviousVersion() {
+        String schema = "{\"subject\":\"%s\",\"schemaType\":\"AVRO\",\"schema\":\"{\\\"type\\\": \\\"string\\\"}\"}";
+
+        webTestClient
+                .post()
+                .uri("/api/clusters/{clusterName}/schemas", LOCAL)
+                .contentType(MediaType.APPLICATION_JSON)
+                .body(BodyInserters.fromValue(schema.formatted(subject)))
+                .exchange()
+                .expectStatus().isEqualTo(HttpStatus.OK);
+
+        webTestClient
+                .post()
+                .uri("/api/clusters/{clusterName}/schemas", LOCAL)
+                .contentType(MediaType.APPLICATION_JSON)
+                .body(BodyInserters.fromValue(schema.formatted(subject)))
+                .exchange()
+                .expectStatus().isEqualTo(HttpStatus.CONFLICT);
+    }
+
+    @Test
+    void shouldCreateNewProtobufSchema() {
+        String schema = "syntax = \"proto3\";\n\nmessage MyRecord {\n  int32 id = 1;\n  string name = 2;\n}\n";
+        NewSchemaSubject requestBody = new NewSchemaSubject()
+                .schemaType(SchemaType.PROTOBUF)
+                .subject(subject)
+                .schema(schema);
+        SchemaSubject actual = webTestClient
+                .post()
+                .uri("/api/clusters/{clusterName}/schemas", LOCAL)
+                .contentType(MediaType.APPLICATION_JSON)
+                .body(BodyInserters.fromPublisher(Mono.just(requestBody), NewSchemaSubject.class))
+                .exchange()
+                .expectStatus()
+                .isOk()
+                .expectBody(SchemaSubject.class)
+                .returnResult()
+                .getResponseBody();
+
+        Assertions.assertNotNull(actual);
+        Assertions.assertEquals(CompatibilityLevel.CompatibilityEnum.BACKWARD.name(), actual.getCompatibilityLevel());
+        Assertions.assertEquals("1", actual.getVersion());
+        Assertions.assertEquals(SchemaType.PROTOBUF, actual.getSchemaType());
+        Assertions.assertEquals(schema, actual.getSchema());
+    }
+
     @Test
     public void shouldReturnBackwardAsGlobalCompatibilityLevelByDefault() {
         webTestClient
@@ -132,9 +199,9 @@ class SchemaRegistryServiceTests extends AbstractBaseTest {
     private void createNewSubjectAndAssert(String subject) {
         webTestClient
                 .post()
-                .uri("/api/clusters/{clusterName}/schemas/{subject}", LOCAL, subject)
+                .uri("/api/clusters/{clusterName}/schemas", LOCAL)
                 .contentType(MediaType.APPLICATION_JSON)
-                .body(BodyInserters.fromValue("{\"schema\":\"{\\\"type\\\": \\\"string\\\"}\"}"))
+                .body(BodyInserters.fromValue("{\"subject\":\"%s\",\"schemaType\":\"AVRO\",\"schema\":\"{\\\"type\\\": \\\"string\\\"}\"}".formatted(subject)))
                 .exchange()
                 .expectStatus().isOk()
                 .expectBody(SchemaSubject.class)
@@ -151,16 +218,17 @@ class SchemaRegistryServiceTests extends AbstractBaseTest {
         Assertions.assertEquals("\"string\"", actualSchema.getSchema());
 
         Assertions.assertNotNull(actualSchema.getCompatibilityLevel());
+        Assertions.assertEquals(SchemaType.AVRO, actualSchema.getSchemaType());
         Assertions.assertEquals(expectedCompatibility.name(), actualSchema.getCompatibilityLevel());
     }
 
     private void assertResponseBodyWhenCreateNewSchema(EntityExchangeResult<SchemaSubject> exchangeResult) {
         SchemaSubject responseBody = exchangeResult.getResponseBody();
         Assertions.assertNotNull(responseBody);
-        Assertions.assertEquals(1, responseBody.getId(), "The schema ID should be non-null in the response");
-        String message = "It should be null";
-        Assertions.assertNull(responseBody.getSchema(), message);
-        Assertions.assertNull(responseBody.getSubject(), message);
-        Assertions.assertNull(responseBody.getVersion(), message);
+        Assertions.assertEquals("1", responseBody.getVersion());
+        Assertions.assertNotNull(responseBody.getSchema());
+        Assertions.assertNotNull(responseBody.getSubject());
+        Assertions.assertNotNull(responseBody.getCompatibilityLevel());
+        Assertions.assertEquals(SchemaType.AVRO, responseBody.getSchemaType());
     }
 }

kafka-ui-contract/src/main/resources/swagger/kafka-ui-api.yaml

@@ -358,58 +358,57 @@ paths:
                   $ref: '#/components/schemas/ConsumerGroup'
 
   /api/clusters/{clusterName}/schemas:
-    get:
+    post:
       tags:
         - /api/clusters
-      summary: get all schemas of latest version from Schema Registry service
-      operationId: getSchemas
+      summary: create a new subject schema
+      operationId: createNewSchema
       parameters:
         - name: clusterName
           in: path
           required: true
           schema:
             type: string
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/NewSchemaSubject'
       responses:
         200:
-          description: OK
+          description: Ok
           content:
             application/json:
               schema:
-                type: array
-                items:
-                  $ref: '#/components/schemas/SchemaSubject'
-
-  /api/clusters/{clusterName}/schemas/{subject}:
-    post:
+                $ref: '#/components/schemas/SchemaSubject'
+        400:
+          description: Bad request
+        409:
+          description: Duplicate schema
+        422:
+          description: Invalid parameters
+    get:
       tags:
         - /api/clusters
-      summary: create a new subject schema
-      operationId: createNewSchema
+      summary: get all schemas of latest version from Schema Registry service
+      operationId: getSchemas
       parameters:
         - name: clusterName
           in: path
           required: true
           schema:
             type: string
-        - name: subject
-          in: path
-          required: true
-          schema:
-            type: string
-      requestBody:
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/NewSchemaSubject'
       responses:
         200:
-          description: Updated
+          description: OK
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/SchemaSubject'
-        400:
-          description: Bad request
+                type: array
+                items:
+                  $ref: '#/components/schemas/SchemaSubject'
+
+  /api/clusters/{clusterName}/schemas/{subject}:
     delete:
       tags:
         - /api/clusters
@@ -1360,16 +1359,29 @@ components:
           type: string
         compatibilityLevel:
           type: string
+        schemaType:
+          $ref: '#/components/schemas/SchemaType'
       required:
         - id
+        - subject
+        - version
+        - schema
+        - compatibilityLevel
+        - schemaType
 
     NewSchemaSubject:
       type: object
       properties:
+        subject:
+          type: string
         schema:
           type: string
+        schemaType:
+          $ref: '#/components/schemas/SchemaType'
       required:
+        - subject
         - schema
+        - schemaType
 
     CompatibilityLevel:
       type: object
@@ -1387,13 +1399,12 @@ components:
       required:
         - compatibility
 
-#    CompatibilityLevelResponse:
-#      type: object
-#      properties:
-#        compatibilityLevel:
-#          type: string
-#      required:
-#        - compatibilityLevel
+    SchemaType:
+      type: string
+      enum:
+        - AVRO
+        - JSON
+        - PROTOBUF
 
     CompatibilityCheckResponse:
       type: object

kafka-ui-react-app/src/components/Schemas/Details/__test__/__snapshots__/Details.spec.tsx.snap

@@ -75,6 +75,7 @@ exports[`Details View Initial state matches snapshot 1`] = `
           "compatibilityLevel": "BACKWARD",
           "id": 1,
           "schema": "{\\"type\\":\\"record\\",\\"name\\":\\"MyRecord1\\",\\"namespace\\":\\"com.mycompany\\",\\"fields\\":[{\\"name\\":\\"id\\",\\"type\\":\\"long\\"}]}",
+          "schemaType": "JSON",
           "subject": "test",
           "version": "1",
         }
@@ -181,6 +182,7 @@ exports[`Details View when page with schema versions is loading matches snapshot
           "compatibilityLevel": "BACKWARD",
           "id": 1,
           "schema": "{\\"type\\":\\"record\\",\\"name\\":\\"MyRecord1\\",\\"namespace\\":\\"com.mycompany\\",\\"fields\\":[{\\"name\\":\\"id\\",\\"type\\":\\"long\\"}]}",
+          "schemaType": "JSON",
           "subject": "test",
           "version": "1",
         }
@@ -266,6 +268,7 @@ exports[`Details View when page with schema versions loaded when schema has vers
           "compatibilityLevel": "BACKWARD",
           "id": 1,
           "schema": "{\\"type\\":\\"record\\",\\"name\\":\\"MyRecord1\\",\\"namespace\\":\\"com.mycompany\\",\\"fields\\":[{\\"name\\":\\"id\\",\\"type\\":\\"long\\"}]}",
+          "schemaType": "JSON",
           "subject": "test",
           "version": "1",
         }
@@ -299,6 +302,7 @@ exports[`Details View when page with schema versions loaded when schema has vers
               "compatibilityLevel": "BACKWARD",
               "id": 1,
               "schema": "{\\"type\\":\\"record\\",\\"name\\":\\"MyRecord1\\",\\"namespace\\":\\"com.mycompany\\",\\"fields\\":[{\\"name\\":\\"id\\",\\"type\\":\\"long\\"}]}",
+              "schemaType": "JSON",
               "subject": "test",
               "version": "1",
             }
@@ -311,6 +315,7 @@ exports[`Details View when page with schema versions loaded when schema has vers
               "compatibilityLevel": "BACKWARD",
               "id": 2,
               "schema": "{\\"type\\":\\"record\\",\\"name\\":\\"MyRecord2\\",\\"namespace\\":\\"com.mycompany\\",\\"fields\\":[{\\"name\\":\\"id\\",\\"type\\":\\"long\\"}]}",
+              "schemaType": "JSON",
               "subject": "test",
               "version": "2",
             }
@@ -397,6 +402,7 @@ exports[`Details View when page with schema versions loaded when versions are em
           "compatibilityLevel": "BACKWARD",
           "id": 1,
           "schema": "{\\"type\\":\\"record\\",\\"name\\":\\"MyRecord1\\",\\"namespace\\":\\"com.mycompany\\",\\"fields\\":[{\\"name\\":\\"id\\",\\"type\\":\\"long\\"}]}",
+          "schemaType": "JSON",
           "subject": "test",
           "version": "1",
         }

kafka-ui-react-app/src/components/Schemas/Details/__test__/fixtures.ts

@@ -1,4 +1,4 @@
-import { SchemaSubject } from 'generated-sources';
+import { SchemaSubject, SchemaType } from 'generated-sources';
 
 export const schema: SchemaSubject = {
   subject: 'test',
@@ -7,6 +7,7 @@ export const schema: SchemaSubject = {
   schema:
     '{"type":"record","name":"MyRecord1","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
   compatibilityLevel: 'BACKWARD',
+  schemaType: SchemaType.JSON,
 };
 
 export const versions: SchemaSubject[] = [
@@ -17,6 +18,7 @@ export const versions: SchemaSubject[] = [
     schema:
       '{"type":"record","name":"MyRecord1","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
     compatibilityLevel: 'BACKWARD',
+    schemaType: SchemaType.JSON,
   },
   {
     subject: 'test',
@@ -25,5 +27,6 @@ export const versions: SchemaSubject[] = [
     schema:
       '{"type":"record","name":"MyRecord2","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
     compatibilityLevel: 'BACKWARD',
+    schemaType: SchemaType.JSON,
   },
 ];

kafka-ui-react-app/src/components/Schemas/List/__test__/__snapshots__/ListItem.spec.tsx.snap

@@ -32,6 +32,7 @@ exports[`ListItem matches snapshot 1`] = `
               "compatibilityLevel": "BACKWARD",
               "id": 1,
               "schema": "{\\"type\\":\\"record\\",\\"name\\":\\"MyRecord1\\",\\"namespace\\":\\"com.mycompany\\",\\"fields\\":[{\\"name\\":\\"id\\",\\"type\\":\\"long\\"}]}",
+              "schemaType": "JSON",
               "subject": "test",
               "version": "1",
             }

kafka-ui-react-app/src/components/Schemas/List/__test__/fixtures.ts

@@ -1,4 +1,4 @@
-import { SchemaSubject } from 'generated-sources';
+import { SchemaSubject, SchemaType } from 'generated-sources';
 
 export const schemas: SchemaSubject[] = [
   {
@@ -8,6 +8,7 @@ export const schemas: SchemaSubject[] = [
     schema:
       '{"type":"record","name":"MyRecord1","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
     compatibilityLevel: 'BACKWARD',
+    schemaType: SchemaType.JSON,
   },
   {
     subject: 'test2',
@@ -16,6 +17,7 @@ export const schemas: SchemaSubject[] = [
     schema:
       '{"type":"record","name":"MyRecord2","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
     compatibilityLevel: 'BACKWARD',
+    schemaType: SchemaType.JSON,
   },
   {
     subject: 'test3',
@@ -24,5 +26,6 @@ export const schemas: SchemaSubject[] = [
     schema:
       '{"type":"record","name":"MyRecord3","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
     compatibilityLevel: 'BACKWARD',
+    schemaType: SchemaType.JSON,
   },
 ];

kafka-ui-react-app/src/components/Schemas/New/New.tsx

@@ -1,17 +1,16 @@
 import React from 'react';
-import { ClusterName, SchemaName, NewSchemaSubjectRaw } from 'redux/interfaces';
+import { ClusterName, NewSchemaSubjectRaw } from 'redux/interfaces';
 import { useForm } from 'react-hook-form';
 import { ErrorMessage } from '@hookform/error-message';
 import Breadcrumb from 'components/common/Breadcrumb/Breadcrumb';
 import { clusterSchemaPath, clusterSchemasPath } from 'lib/paths';
-import { NewSchemaSubject } from 'generated-sources';
+import { NewSchemaSubject, SchemaType } from 'generated-sources';
 import { SCHEMA_NAME_VALIDATION_PATTERN } from 'lib/constants';
 import { useHistory, useParams } from 'react-router';
 
 export interface NewProps {
   createSchema: (
     clusterName: ClusterName,
-    subject: SchemaName,
     newSchemaSubject: NewSchemaSubject
   ) => void;
 }
@@ -29,7 +28,11 @@ const New: React.FC<NewProps> = ({ createSchema }) => {
   const onSubmit = React.useCallback(
     async ({ subject, schema }: NewSchemaSubjectRaw) => {
       try {
-        await createSchema(clusterName, subject, { schema });
+        await createSchema(clusterName, {
+          subject,
+          schema,
+          schemaType: SchemaType.AVRO,
+        });
         history.push(clusterSchemaPath(clusterName, subject));
       } catch (e) {
         // Show Error

kafka-ui-react-app/src/redux/actions/__test__/fixtures.ts

@@ -1,4 +1,4 @@
-import { ClusterStats, NewSchemaSubject } from 'generated-sources';
+import { ClusterStats, NewSchemaSubject, SchemaType } from 'generated-sources';
 
 export const clusterStats: ClusterStats = {
   brokerCount: 1,
@@ -13,6 +13,8 @@ export const clusterStats: ClusterStats = {
 };
 
 export const schemaPayload: NewSchemaSubject = {
+  subject: 'NewSchema',
   schema:
     '{"type":"record","name":"MyRecord1","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
+  schemaType: SchemaType.JSON,
 };

kafka-ui-react-app/src/redux/actions/__test__/thunks.spec.ts

@@ -108,11 +108,11 @@ describe('Thunks', () => {
 
   describe('createSchema', () => {
     it('creates POST_SCHEMA__SUCCESS when posting new schema', async () => {
-      fetchMock.postOnce(`/api/clusters/${clusterName}/schemas/${subject}`, {
+      fetchMock.postOnce(`/api/clusters/${clusterName}/schemas`, {
         body: schemaFixtures.schemaVersionsPayload[0],
       });
       await store.dispatch(
-        thunks.createSchema(clusterName, subject, fixtures.schemaPayload)
+        thunks.createSchema(clusterName, fixtures.schemaPayload)
       );
       expect(store.getActions()).toEqual([
         actions.createSchemaAction.request(),
@@ -122,19 +122,15 @@ describe('Thunks', () => {
       ]);
     });
 
-    // it('creates POST_SCHEMA__FAILURE when posting new schema', async () => {
-    //   fetchMock.postOnce(
-    //     `/api/clusters/${clusterName}/schemas/${subject}`,
-    //     404
-    //   );
-    //   await store.dispatch(
-    //     thunks.createSchema(clusterName, subject, fixtures.schemaPayload)
-    //   );
-    //   expect(store.getActions()).toEqual([
-    //     actions.createSchemaAction.request(),
-    //     actions.createSchemaAction.failure(),
-    //   ]);
-    //   expect(store.getActions()).toThrow();
-    // });
+    it('creates POST_SCHEMA__FAILURE when posting new schema', async () => {
+      fetchMock.postOnce(`/api/clusters/${clusterName}/schemas`, 404);
+      await store.dispatch(
+        thunks.createSchema(clusterName, fixtures.schemaPayload)
+      );
+      expect(store.getActions()).toEqual([
+        actions.createSchemaAction.request(),
+        actions.createSchemaAction.failure(),
+      ]);
+    });
   });
 });

kafka-ui-react-app/src/redux/actions/thunks.ts

@@ -285,19 +285,16 @@ export const fetchSchemaVersions = (
 
 export const createSchema = (
   clusterName: ClusterName,
-  subject: SchemaName,
   newSchemaSubject: NewSchemaSubject
 ): PromiseThunkResult => async (dispatch) => {
   dispatch(actions.createSchemaAction.request());
   try {
     const schema: SchemaSubject = await apiClient.createNewSchema({
       clusterName,
-      subject,
       newSchemaSubject,
     });
     dispatch(actions.createSchemaAction.success(schema));
   } catch (e) {
     dispatch(actions.createSchemaAction.failure());
-    throw e;
   }
 };

kafka-ui-react-app/src/redux/reducers/schemas/__test__/__snapshots__/reducer.spec.ts.snap

@@ -12,6 +12,7 @@ Object {
       "compatibilityLevel": "BACKWARD",
       "id": 2,
       "schema": "{\\"type\\":\\"record\\",\\"name\\":\\"MyRecord2\\",\\"namespace\\":\\"com.mycompany\\",\\"fields\\":[{\\"name\\":\\"id\\",\\"type\\":\\"long\\"}]}",
+      "schemaType": "JSON",
       "subject": "test",
       "version": "2",
     },
@@ -19,6 +20,7 @@ Object {
       "compatibilityLevel": "BACKWARD",
       "id": 4,
       "schema": "{\\"type\\":\\"record\\",\\"name\\":\\"MyRecord4\\",\\"namespace\\":\\"com.mycompany\\",\\"fields\\":[{\\"name\\":\\"id\\",\\"type\\":\\"long\\"}]}",
+      "schemaType": "JSON",
       "subject": "test2",
       "version": "3",
     },
@@ -26,6 +28,7 @@ Object {
       "compatibilityLevel": "BACKWARD",
       "id": 5,
       "schema": "{\\"type\\":\\"record\\",\\"name\\":\\"MyRecord\\",\\"namespace\\":\\"com.mycompany\\",\\"fields\\":[{\\"name\\":\\"id\\",\\"type\\":\\"long\\"}]}",
+      "schemaType": "JSON",
       "subject": "test3",
       "version": "1",
     },
@@ -43,6 +46,7 @@ Object {
       "compatibilityLevel": "BACKWARD",
       "id": 1,
       "schema": "{\\"type\\":\\"record\\",\\"name\\":\\"MyRecord1\\",\\"namespace\\":\\"com.mycompany\\",\\"fields\\":[{\\"name\\":\\"id\\",\\"type\\":\\"long\\"}]}",
+      "schemaType": "JSON",
       "subject": "test",
       "version": "1",
     },
@@ -50,6 +54,7 @@ Object {
       "compatibilityLevel": "BACKWARD",
       "id": 2,
       "schema": "{\\"type\\":\\"record\\",\\"name\\":\\"MyRecord2\\",\\"namespace\\":\\"com.mycompany\\",\\"fields\\":[{\\"name\\":\\"id\\",\\"type\\":\\"long\\"}]}",
+      "schemaType": "JSON",
       "subject": "test",
       "version": "2",
     },
@@ -67,6 +72,7 @@ Object {
       "compatibilityLevel": "BACKWARD",
       "id": 1,
       "schema": "{\\"type\\":\\"record\\",\\"name\\":\\"MyRecord1\\",\\"namespace\\":\\"com.mycompany\\",\\"fields\\":[{\\"name\\":\\"id\\",\\"type\\":\\"long\\"}]}",
+      "schemaType": "JSON",
       "subject": "test",
       "version": "1",
     },

kafka-ui-react-app/src/redux/reducers/schemas/__test__/fixtures.ts

@@ -1,5 +1,5 @@
 import { SchemasState } from 'redux/interfaces';
-import { SchemaSubject } from 'generated-sources';
+import { SchemaSubject, SchemaType } from 'generated-sources';
 
 export const initialState: SchemasState = {
   byName: {},
@@ -15,6 +15,7 @@ export const clusterSchemasPayload: SchemaSubject[] = [
     schema:
       '{"type":"record","name":"MyRecord4","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
     compatibilityLevel: 'BACKWARD',
+    schemaType: SchemaType.JSON,
   },
   {
     subject: 'test3',
@@ -23,6 +24,7 @@ export const clusterSchemasPayload: SchemaSubject[] = [
     schema:
       '{"type":"record","name":"MyRecord","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
     compatibilityLevel: 'BACKWARD',
+    schemaType: SchemaType.JSON,
   },
   {
     subject: 'test',
@@ -31,6 +33,7 @@ export const clusterSchemasPayload: SchemaSubject[] = [
     schema:
       '{"type":"record","name":"MyRecord2","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
     compatibilityLevel: 'BACKWARD',
+    schemaType: SchemaType.JSON,
   },
 ];
 
@@ -42,6 +45,7 @@ export const schemaVersionsPayload: SchemaSubject[] = [
     schema:
       '{"type":"record","name":"MyRecord1","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
     compatibilityLevel: 'BACKWARD',
+    schemaType: SchemaType.JSON,
   },
   {
     subject: 'test',
@@ -50,6 +54,7 @@ export const schemaVersionsPayload: SchemaSubject[] = [
     schema:
       '{"type":"record","name":"MyRecord2","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
     compatibilityLevel: 'BACKWARD',
+    schemaType: SchemaType.JSON,
   },
 ];
 
@@ -60,6 +65,7 @@ export const newSchemaPayload: SchemaSubject = {
   schema:
     '{"type":"record","name":"MyRecord4","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
   compatibilityLevel: 'BACKWARD',
+  schemaType: SchemaType.JSON,
 };
 
 export const clusterSchemasPayloadWithNewSchema: SchemaSubject[] = [
@@ -70,6 +76,7 @@ export const clusterSchemasPayloadWithNewSchema: SchemaSubject[] = [
     schema:
       '{"type":"record","name":"MyRecord4","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
     compatibilityLevel: 'BACKWARD',
+    schemaType: SchemaType.JSON,
   },
   {
     subject: 'test3',
@@ -78,6 +85,7 @@ export const clusterSchemasPayloadWithNewSchema: SchemaSubject[] = [
     schema:
       '{"type":"record","name":"MyRecord","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
     compatibilityLevel: 'BACKWARD',
+    schemaType: SchemaType.JSON,
   },
   {
     subject: 'test',
@@ -86,6 +94,7 @@ export const clusterSchemasPayloadWithNewSchema: SchemaSubject[] = [
     schema:
       '{"type":"record","name":"MyRecord2","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
     compatibilityLevel: 'BACKWARD',
+    schemaType: SchemaType.JSON,
   },
   {
     subject: 'test4',
@@ -94,5 +103,6 @@ export const clusterSchemasPayloadWithNewSchema: SchemaSubject[] = [
     schema:
       '{"type":"record","name":"MyRecord4","namespace":"com.mycompany","fields":[{"name":"id","type":"long"}]}',
     compatibilityLevel: 'BACKWARD',
+    schemaType: SchemaType.JSON,
   },
 ];