Rhino.Compute- Grasshopper Appserver POST Request Error

Grasshopper Developer
1

Hello everyone,
I am encountering issues communicating with Rhino.Compute via JavaScript. I cloned the repository from Rhino Compute Development Guide and compiled it in Visual Studio. After getting it up and running, I tested an endpoint with http://localhost:6500/healthcheck without any issues. However, when I try to POST a Grasshopper file to Rhino.Compute, I receive a 500 error.. I have tried changing the file path ../designs/hops_test.gh in various ways, but without success.
Below is our method to fetch data from Rhino Compute
const response = await fetch(‘http://localhost:6500/grasshopper’, {
method: ‘POST’,
headers: {
‘Content-Type’: ‘application/json’
},
body: JSON.stringify({
definition: ‘../designs/hops_test.gh’,
inputs: {
getInteger1: 45,
getInteger2: 63
}
})
});

    const data = await response.json();
    // Process and display data
    displayRhinoModel(data);
    });

What’s the correct path format for the definition? Is there any sample POST code using fetch or compute.rhino3d.js? Could this be a server config issue?

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3

Have you been able to look through the sample projects that are in the AppServer repo? Here’s one example of how they send a definition over to Rhino.Compute.

4

Thank you! I was able to get it to work using that example.
Believe the issue was that I had to run both the Rhino Compute and the App Server at the same time.

5

Yes, both the Rhino.Compute server and the App Server must be running at the same time in order for it to work correctly.