[fuerte] How to use AttributeTranslator or get attributes after Post?

[Andy]

I try example from https://www.arangodb.com/2017/11/introduction-fuerte-arangodb-c-plus-plus-driver/

It compiles, but after

auto request = f::createRequest(f::RestVerb::Post, "/_api/document/blogpost"s);

request->addVPack(builder.slice());

auto result = connection->sendRequest(std::move(request));

std::stirng key=result->slices().front().get("_key").copyString();

is exception: what():  Cannot execute operation without attribute translator

I do (probably badly)

arangodb::velocypack::AttributeTranslator translator;
arangodb::velocypack::Options::Defaults.attributeTranslator = &translator;

and have exception: what():  Expecting type String

I can read slice attributes in

        auto request = f::createRequest(f::RestVerb::Get, "/_api/version"s);
        auto result = connection->sendRequest(std::move(request));
        assert(result->statusCode() == f::StatusOK);
        auto slice = result->slices().front();
        auto version = slice.get("version").copyString();
        auto server = slice.get("server").copyString();

but after f::RestVerb::Post, I can't

[Jan]

Hi,

the ArangoDB database uses the AttributeTranslator to translate certain attribute names from strings into one-byte shorthand values.

Receiving a response from an ArangoDB database server may contain these shorthand values, and in order to process them an AttributeTranslator instance has to be set up and configured in the same way.

This can be achieved by the following:

  arangodb::velocypack::AttributeTranslator translator;
  // these attribute names will be translated into short integer values
  translator.add("_key", 1);
  translator.add("_rev", 2);
  translator.add("_id", 3);
  translator.add("_from", 4);
  translator.add("_to", 5);
  translator.seal();

  arangodb::velocypack::Options::Defaults.attributeTranslator = &translator;
   

I hope this helps.

Best regards

Jan

[Andy]

This helps, seal() was keyed.

[Vaibhav Patil]

arangodb+u...@googlegroups.com

On Sun, Aug 2, 2020 at 6:40 PM Andy <borucki...@gmail.com> wrote:

This helps, seal() was keyed.

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