Typescript snippet for sync-like function execution in Appwrite

app.ts

// This snippets expect that your functions use JSON as both input and output

// Connect to appwrite, should be globaly shared
let sdk = new Appwrite();

sdk
 .setEndpoint("https://[HOSTNAME_OR_IP]/v1") // Your API Endpoint
 .setProject("5df5acd0d48c2"); // Your project ID

// Shared type for strict type definition
// If success is false, there will always be `data.msg`: string
export type AppwriteExecutionResponse = {
 success: boolean;
 data: any;
};

// Function to get appwrite's execution result - should be in separate "lib.ts" file
const getExecutionResponse = async (
 functionId: string,
 executionId: string
): Promise<AppwriteExecutionResponse> => {
 // Recursive function to attept to get data multiple times
 const getResponseRecursion = async (
  currentIteration: number = 1
 ): Promise<AppwriteExecutionResponse | null> => {
  // Return error if we didn't get response in 15 attepmts (3secs + response await times)
  if (currentIteration >= 5) {
   return {
    success: false,
    data: {
        msg: "Execution didn't respond for too long."
    },
   };
  }

  // Get execution info
  const executionData = await sdk.functions.getExecution(
   functionId,
   executionId
  );

  // If we have status, reutrn it
  if (executionData.status === "completed") {
   return {
    success: true,
    data: JSON.parse(executionData.stdout),
   };
  } else if (executionData.status === "failed") {
   return {
    success: false,
    data: JSON.stringify({
        msg: executionData.stderr
    }),
   };
  }

  // We dont have status yet

  // Wait 0.2s
  await new Promise<void>((promiseResponse, _promiseReject) => {
   setTimeout(() => {
    promiseResponse();
   }, 200);
  });

  // Try to get status again
  return await getResponseRecursion(currentIteration + 1);
 };

 // Run recursive function, wait for result
 const responseData = await getResponseRecursion();

 return responseData;
};

// Execute function and get response - the code you will write each time
const functionId = "894fsd65sd";
const functionData = { user: "Meldiron", age: 101, canPlayWithLego: false };
const { $id: executionId } = await sdk.functions.createExecution(functionId, JSON.stringify(functionData));
const executionResponse = await getExecutionResponse(functionId, executionId);

// Use data
if(executionResponse.success) {
    // Success, we have data - JSON object
    console.log(executionResponse.data);
} else {
    // Whoops, problem. We have data.msg
    console.log(executionResponse.data.msg);
}