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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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