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Map deserialization inside objects

See original GitHub issue

As mentioned in gitter:

Exception raised when trying to pass in a Map via a mutation:

mutation isoCountryUpdate {
  isoCountryUpdate(input: {
    clientMutationId: "1234"
      isoCountry: {
          id: 2747
          codeAlpha2: "YY"
          codeAlpha3: "YYY"
          name: "TEST"
          codeNumeric: "66"
          confirmationResponses: {key: "TEST", value: "NO"}
      }
    }) {
    clientMutationId
    result {
      id
      name
    }
  }
}

Caused by: java.lang.IllegalArgumentException: Can not deserialize instance of java.util.LinkedHashMap out of START_ARRAY token
 at [Source: N/A; line: -1, column: -1] (through reference chain: p4.entities.common.IsoCountry["confirmationResponses"])
    at com.fasterxml.jackson.databind.ObjectMapper._convert(ObjectMapper.java:3605) ~[jackson-databind-2.8.9.jar:2.8.9]
    at com.fasterxml.jackson.databind.ObjectMapper.convertValue(ObjectMapper.java:3546) ~[jackson-databind-2.8.9.jar:2.8.9]
    at io.leangen.graphql.metadata.strategy.value.jackson.JacksonValueMapper.fromInput(JacksonValueMapper.java:33) ~[spqr-0.9.3.jar:na]
    at io.leangen.graphql.metadata.strategy.value.ValueMapper.fromInput(ValueMapper.java:11) ~[spqr-0.9.3.jar:na]
    at io.leangen.graphql.generator.mapping.common.InputValueDeserializer.getArgumentValue(InputValueDeserializer.java:19) ~[spqr-0.9.3.jar:na]
    at io.leangen.graphql.execution.ResolutionEnvironment.getInputValue(ResolutionEnvironment.java:63) ~[spqr-0.9.3.jar:na]
    at io.leangen.graphql.execution.OperationExecutor.execute(OperationExecutor.java:91) ~[spqr-0.9.3.jar:na]
    at io.leangen.graphql.execution.OperationExecutor.execute(OperationExecutor.java:59) ~[spqr-0.9.3.jar:na]
    ... 129 common frames omitted
Caused by: com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of java.util.LinkedHashMap out of START_ARRAY token
 at [Source: N/A; line: -1, column: -1] (through reference chain: p4.entities.common.IsoCountry["confirmationResponses"])
    at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:270) ~[jackson-databind-2.8.9.jar:2.8.9]
    at com.fasterxml.jackson.databind.DeserializationContext.reportMappingException(DeserializationContext.java:1234) ~[jackson-databind-2.8.9.jar:2.8.9]
    at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1122) ~[jackson-databind-2.8.9.jar:2.8.9]
    at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1075) ~[jackson-databind-2.8.9.jar:2.8.9]
    at com.fasterxml.jackson.databind.deser.std.StdDeserializer._deserializeFromEmpty(StdDeserializer.java:892) ~[jackson-databind-2.8.9.jar:2.8.9]
    at com.fasterxml.jackson.databind.deser.std.MapDeserializer.deserialize(MapDeserializer.java:358) ~[jackson-databind-2.8.9.jar:2.8.9]
    at com.fasterxml.jackson.databind.deser.std.MapDeserializer.deserialize(MapDeserializer.java:27) ~[jackson-databind-2.8.9.jar:2.8.9]
    at com.fasterxml.jackson.databind.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:504) ~[jackson-databind-2.8.9.jar:2.8.9]
    at com.fasterxml.jackson.databind.deser.impl.MethodProperty.deserializeAndSet(MethodProperty.java:104) ~[jackson-databind-2.8.9.jar:2.8.9]
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:276) ~[jackson-databind-2.8.9.jar:2.8.9]
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:140) ~[jackson-databind-2.8.9.jar:2.8.9]
    at com.fasterxml.jackson.databind.ObjectMapper._convert(ObjectMapper.java:3600) ~[jackson-databind-2.8.9.jar:2.8.9]
    ... 136 common frames omitted

Issue Analytics

State:
Created 6 years ago
Comments:7 (3 by maintainers)

Top GitHub Comments

1reaction

brettcoopercommented, Oct 16, 2017

I believe we had the same issue and fixed it by setting: generator.withScalarMappingStrategy(new MapScalarStrategy());

0reactions

kvzncommented, Jan 14, 2019

I solved the this JSON parse issue by replacing “Map<String, String> request” with “Map<String, Object> request”

@PostMapping(value = "/graphql", consumes = MediaType.APPLICATION_JSON_UTF8_VALUE, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
    @ResponseBody
    public Map<String, Object> graphql(@RequestBody Map<String, Object> request, HttpServletRequest raw) {
        ExecutionResult executionResult = graphQL.execute(ExecutionInput.newExecutionInput()
                .query(request.get("query").toString())
                .operationName(request.get("operationName") != null ? request.get("operationName").toString() : null)
                .context(raw)
                .build());
        return executionResult.toSpecification();
    }

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