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How to parse a json response (e.g. a json array) in ue4 c++ context.
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| /** | |
| * Include the PrivateDependencyModuleNames entries below in your project build target configuration: | |
| * PrivateDependencyModuleNames.AddRange(new string[] { "Json", "JsonUtilities" }); | |
| */ | |
| #include "Runtime/Online/HTTP/Public/Http.h" | |
| #include "Serialization/JsonSerializer.h" | |
| FHttpResponsePtr Response; | |
| { | |
| // Single json value (any of supported json types e.g. | |
| // object with properties, array, bool) at top level of json | |
| TSharedPtr<FJsonValue> JsonValue; | |
| // Create a reader pointer to read the json data | |
| TSharedRef<TJsonReader<>> Reader = TJsonReaderFactory<>::Create(Response->GetContentAsString()); | |
| // Deserialize the json data given Reader and the actual object to deserialize | |
| if (FJsonSerializer::Deserialize(Reader, JsonValue)) { | |
| // Get the value of the json object by field name | |
| bool status = JsonValue->AsObject()->GetBoolField("status"); | |
| } | |
| } | |
| { | |
| // Array of json objects at top level of json | |
| TSharedPtr<FJsonObject> JsonObject; | |
| // Create a reader pointer to read the json data | |
| TSharedRef<TJsonReader<>> Reader = TJsonReaderFactory<>::Create(Response->GetContentAsString()); | |
| // Deserialize the json data given Reader and the actual object to deserialize | |
| if (FJsonSerializer::Deserialize(Reader, JsonObject)) { | |
| // Get the value of the json object by field name | |
| FString name = JsonObject->GetStringField("name"); | |
| } | |
| } | |
| { | |
| // Array of json objects at top level of json | |
| TArray<TSharedPtr<FJsonValue>> JsonArray; | |
| // Create a reader pointer to read the json data | |
| TSharedRef<TJsonReader<>> Reader = TJsonReaderFactory<>::Create(Response->GetContentAsString()); | |
| // Deserialize the json data given Reader and the actual object to deserialize | |
| if (FJsonSerializer::Deserialize(Reader, JsonArray)) { | |
| //Get the value of the json object by field name | |
| FString name = JsonArray[0]->AsObject()->GetStringField("name"); | |
| } | |
| } |
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