winsoroaks•3w ago

Type Inference Lint Errors When Returning Mutation Result in Internal Action

I'm encountering a TypeScript linting issue inside an internal action function. Here’s a simplified version of the function signature:

export const doSomethingAction = internalAction({
  args: {
    userId: v.id("users"),
    // ...other args
  },
  handler: async (ctx, args) => {
    // ...logic
    const result = await ctx.runMutation(internal.someModule.someMutation, {
      // ...args
    });
    return result;
  },
});

export const doSomethingAction = internalAction({
  args: {
    userId: v.id("users"),
    // ...other args
  },
  handler: async (ctx, args) => {
    // ...logic
    const result = await ctx.runMutation(internal.someModule.someMutation, {
      // ...args
    });
    return result;
  },
});

When I assign the result of ctx.runMutation to a variable (e.g., const result = ...) and return it, I get a series of "implicitly has type 'any'" linter errors for the result and related variables. However, if I remove the assignment and the return statement (i.e., I don't assign or return the mutation result), the lint errors disappear. Why does returning the result of ctx.runMutation in an internal action trigger these implicit 'any' type errors, and is there a recommended way to resolve this while still returning the mutation result?

2 Replies

Convex Bot•3w ago

Thanks for posting in <#1088161997662724167>. Reminder: If you have a Convex Pro account, use the Convex Dashboard to file support tickets. - Provide context: What are you trying to achieve, what is the end-user interaction, what are you seeing? (full error message, command output, etc.) - Use search.convex.dev to search Docs, Stack, and Discord all at once. - Additionally, you can post your questions in the Convex Community's <#1228095053885476985> channel to receive a response from AI. - Avoid tagging staff unless specifically instructed. Thank you!

erquhart•2w ago

It’s circular inference. Here’s how to deal with it: https://docs.convex.dev/functions/actions#dealing-with-circular-type-inference

Type Inference Lint Errors When Returning Mutation Result in Internal Action

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