prepareunlockspent in C# with RPC

Question

I'm having an issue trying to use prepareunlockspent in c# using rpc.  the JSO that is being sent (before it is byte encoded) looks like:

{\"method\":\"preparelockunspent\",\"params\":[\"'{\\\"asset1\\\":1000}'\"],\"chain_name\":\"test1\",\"chain_key\":null,\"int\":0}

 

But when I issue a GetResponse, I get a 500 internal server error.

Digging deeper the underlying error is :

"{\"result\":null,\"error\":{\"code\":-1,\"message\":\"value is type str, expected real\"},\"id\":null}\n"

 

Any thoughts?

 

Andrew

Answer 1

When passing the object containing the asset name and quantity in JSON, don't include the single quotes. Those are used in the command line to prevent spaces being treated as a parameter separator, but they're not part of the JSON format itself.

Comments

Thanks for this.  Unfortunately I can't get this to work.  I have tried every conceivable variation but still no luck!  I have discovered that any command that requires a JSON object fails with the same error.  Do you have a sample JSON string that I could try?  Note, everything works fine at the multichain command line it is only when I send it via RPC using C# that the problem occurs.

Many thanks,

Andrew

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If you're connecting to the RPC using C# you need to pass a real JSON object to the MultiChain API, not a string representing that object. You only pass objects as strings on the command line, because multichain-cli converts those strings to objects when calling the MultiChain API. I can't comment on how to do this in C# but that's where you need to get to.