Generate gRPC code snippets in Postman: put this code in the After Response of your Postman gRPC request to generate grpc_cli and grpcurl code snippets. It is very basic, but may be useful for many use cases.

postman-generate-cli-request.js

/* cli code snippets logging */

try {
    const host = `${pm.request.url.host.join(".")}:${pm.request.url.port}`;

    const grpc_cliServiceMethod = pm.request.methodPath.split('.').slice(1).join('.')
    const grpcurlServiceMethod = pm.request.methodPath

    const metadataEntries = [];
    pm.request.metadata.each((header) => {
        if (!header.disabled) {
            metadataEntries.push(`"${header.key.toLowerCase()}:${header.value}"`);
        }
    });
    
    const grpc_cliMetadataString = metadataEntries.map((m) => `-metadata ${m}`).join(" \\\n  ");
    const grpcurlMetadataString = metadataEntries.map((m) => `-H ${m}`).join(" \\\n  ");

    const requestBody = pm.request.messages.idx(0).data;
    const jsonBody = JSON.stringify(requestBody);
  
    const grpc_cliCommand = `grpc_cli call --json_input --json_output ${host} ${grpc_cliServiceMethod} \\
    ${grpc_cliMetadataString} \\
    '${jsonBody}'`;

    console.log("grpc_cli code snippet:");
    console.log(pm.environment.replaceIn(grpc_cliCommand));

    const grpcurlCommand = `grpcurl -plaintext \\
    ${grpcurlMetadataString} \\
    -d '${jsonBody}' \\
    ${host} ${grpcurlServiceMethod}`;

    console.log("grpcurl code snippet:");
    console.log(pm.environment.replaceIn(grpcurlCommand));
} catch(exception) {
    console.error("error while building cli code snippets:", exception);
}