CODEWITHSUNDEEP
asp.net-coreasp.net-core-webapiasp.net-core-3.1msgpack
Arash
Arash

Reputation: 4260

How can one configure and use MessagePack in an asp.net core 3.1 web api?

I have followed this article to start using MessagePack in my asp.net core 3.1 application but it's not working due to the following error message:

Severity Code Description Project File Line Suppression State Error CS1503 Argument 1: cannot convert from 'MessagePack.Resolvers.ContractlessStandardResolver' to 'MessagePack.MessagePackSerializerOptions' Gateway C:\Developments\POC\Gateway\Startup.cs 33 Active

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What is another alternative or solution to fix this compile problem?

Upvotes: 0

Views: 1354

Answers (1)

LouraQ
LouraQ

Reputation: 6881

As @Michael said, what is needed behind MessagePackOutputFormatter is the MessagePackSerializerOptions type, and the current error occurs because the type is ContractlessStandardResolver, which is not consistent.

Therefore, you only need to modify the code as follows:

 services.AddMvc().AddMvcOptions(option =>
            {
                option.OutputFormatters.Clear();
                option.OutputFormatters.Add(new MessagePackOutputFormatter(ContractlessStandardResolver.Options));
                option.InputFormatters.Clear();
                option.InputFormatters.Add(new MessagePackInputFormatter(ContractlessStandardResolver.Options));
            })
   .SetCompatibilityVersion(CompatibilityVersion.Version_2_2);

Upvotes: 1

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