# Fund Escrow

## Schema

This validates an escrow form using Zod, including wallet addresses and amount.

```typescript
import { z } from "zod";

export const formSchema = z.object({
  contractId: z.string().min(1, "Contract ID is required"),
  signer: z.string().min(1, "Signer address is required"),
  amount: z.string().min(1, {
    message: "Amount is required.",
  }),
});

```

## Custom Hook

This contains all the form logic, including schema validation, onSubmit function and others states and functionalities.

```typescript
import { useEscrowContext } from "@/providers/escrow.provider";
import { useWalletContext } from "@/providers/wallet.provider";
import { useState } from "react";
import { useForm } from "react-hook-form";
import { zodResolver } from "@hookform/resolvers/zod";
import { z } from "zod";
import { formSchema } from "../schemas/fund-escrow-form.schema";
import { escrowService } from "../services/escrow.service";
import { toast } from "sonner";
import { Escrow } from "@/@types/escrows/escrow.entity";
import { EscrowRequestResponse } from "@/@types/escrows/escrow-response.entity";
import { FundEscrowPayload } from "@/@types/escrows/escrow-payload.entity";

export const useFundEscrowForm = () => {
  const { escrow } = useEscrowContext();
  const { setEscrow } = useEscrowContext();
  const { walletAddress } = useWalletContext();
  const [loading, setLoading] = useState(false);
  const [response, setResponse] = useState<EscrowRequestResponse | null>(null);
  const [error, setError] = useState<string | null>(null);

  const form = useForm<z.infer<typeof formSchema>>({
    resolver: zodResolver(formSchema),
    defaultValues: {
      contractId: escrow?.contractId || "",
      amount: escrow?.amount?.toString() || "1000",
      signer: walletAddress || "Connect your wallet to get your address",
    },
  });

  const onSubmit = async (payload: FundEscrowPayload) => {
    setLoading(true);
    setError(null);
    setResponse(null);

    try {
      /**
       * API call by using the escrow service
       * @Note:
       * - We need to specify the endpoint and the method
       * - We need to specify that the returnEscrowDataIsRequired is false
       * - The result will be an EscrowRequestResponse
       */
      const result = (await escrowService.execute({
        payload,
        endpoint: "/escrow/fund-escrow",
        method: "post",
        returnEscrowDataIsRequired: false,
      })) as EscrowRequestResponse;

      /**
       * @Responses:
       * result.status === "SUCCESS"
       * - Escrow funded successfully
       * - Set the escrow in the context
       * - Show a success toast
       *
       * result.status !== "SUCCESS"
       * - Show an error toast
       */
      if (result.status === "SUCCESS") {
        // Validate balance in order to avoid negative balances in the escrow context
        const escrowUpdated: Escrow = {
          ...escrow!,
          balance:
            escrow?.balance && Number(escrow.balance) > 0
              ? (Number(escrow.balance) + Number(payload.amount)).toString()
              : payload.amount,
        };

        setEscrow(escrowUpdated);

        toast.info("Escrow Funded");
        setResponse(result);
      }
    } catch (err) {
      toast.error(
        err instanceof Error ? err.message : "An unknown error occurred"
      );
    } finally {
      setLoading(false);
    }
  };

  return { form, loading, response, error, onSubmit };
};

```

## Form

This form is built with react hook form. We use the custom hook and zod schema mentioned before.

```typescript
"use client";

import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import {
  Form,
  FormField,
  FormItem,
  FormLabel,
  FormControl,
  FormMessage,
} from "@/components/ui/form";

import { useFundEscrowForm } from "../../hooks/fund-escrow-form.hook";
import { useEscrowContext } from "@/providers/escrow.provider";
import { ResponseDisplay } from "@/components/utils/response-display";

export function FundEscrowForm() {
  const { form, loading, response, onSubmit } = useFundEscrowForm();
  const { escrow } = useEscrowContext();

  return (
    <div className="space-y-6">
      <Form {...form}>
        <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-4">
          <FormField
            control={form.control}
            name="contractId"
            render={({ field }) => (
              <FormItem>
                <FormLabel>Contract / Escrow ID</FormLabel>
                <FormControl>
                  <Input
                    placeholder="CAZ6UQX7..."
                    {...field}
                    disabled={!!escrow?.contractId}
                  />
                </FormControl>
                <FormMessage />
              </FormItem>
            )}
          />

          <FormField
            control={form.control}
            name="signer"
            render={({ field }) => (
              <FormItem>
                <FormLabel>Signer Address</FormLabel>
                <FormControl>
                  <Input disabled placeholder="GSIGN...XYZ" {...field} />
                </FormControl>
                <FormMessage />
              </FormItem>
            )}
          />

          <FormField
            control={form.control}
            name="amount"
            render={({ field }) => (
              <FormItem>
                <FormLabel>Amount</FormLabel>
                <FormControl>
                  <Input
                    disabled={Number(escrow?.balance) >= Number(escrow?.amount)}
                    type="text"
                    {...field}
                  />
                </FormControl>
                <FormMessage />
              </FormItem>
            )}
          />

          <Button type="submit" className="w-full" disabled={loading}>
            {loading ? "Funding..." : "Fund Escrow"}
          </Button>
        </form>
      </Form>

      <ResponseDisplay response={response} />
    </div>
  );
}

```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.trustlesswork.com/trustless-work/v2-en/oss-dapps/escrow-lab/forms/fund-escrow.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.