# Display Dwolla funding sources

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## Display Dwolla funding sources

### 1. Define the smart collection

Filterable fields are flagged using `isFilterable: true`. You will need to enable this option using the collection settings in the [Layout Editor](https://docs.forestadmin.com/user-guide/getting-started/master-your-ui/using-the-layout-editor-mode).

Funding Sources have the `onlyForRelationships` enabled: it means that these 2 collections are only accessible via the Dwolla customer relationships.

```javascript
// forest/dwolla-funding-sources.js
const { collection } = require('forest-express-sequelize');

collection('dwollaFundingSources', {
  onlyForRelationships: true,
  actions: [],
  fields: [
    {
      field: 'id',
      type: 'String',
    },
    {
      field: 'status',
      type: 'Enum',
      enums: ['unverified', 'verified'],
    },
    {
      field: 'type',
      type: 'Enum',
      enums: ['bank', 'balance'],
    },
    {
      field: 'bankAccountType',
      type: 'Enum',
      enums: ['checking', 'savings', 'general-ledger', 'loan'],
    },
    {
      field: 'name',
      type: 'String',
    },
    {
      field: 'balance',
      type: 'Json',
    },
    {
      field: 'balanceReadable',
      type: 'String',
      get: (fundingSource) => {
        if (!fundingSource.balance) return null;
        var formatter = new Intl.NumberFormat('en-US', {
          style: 'currency',
          currency: fundingSource.balance.currency,
        });
        return formatter.format(fundingSource.balance.value);
      },
    },
    {
      field: 'removed',
      type: 'Boolean',
    },
    {
      field: 'channels',
      type: ['String'],
    },
    {
      field: 'bankName',
      type: 'String',
    },
    {
      field: 'fingerprint',
      type: 'String',
    },
    {
      field: 'created', //created_at
      type: 'Date',
    },
  ],
  segments: [],
});
```

### 2. Implement the route

This route use the Dwolla service described in [another section](/documentation/reference-guide/integrations/dwolla/dwolla-service.md).

```javascript
// routes/funding-sources.js
const express = require('express');
const {
  PermissionMiddlewareCreator,
  RecordSerializer,
} = require('forest-express-sequelize');

const DwollaService = require('../services/dwolla-service');
let dwollaService = new DwollaService(
  process.env.DWOLLA_APP_KEY,
  process.env.DWOLLA_APP_SECRET,
  process.env.DWOLLA_ENVIRONMENT
);

const MODEL_NAME = 'dwollaFundingSources';

const router = express.Router();
const permissionMiddlewareCreator = new PermissionMiddlewareCreator(
  `${MODEL_NAME}`
);

// Get a FundingSource
router.get(
  `/${MODEL_NAME}/:recordId`,
  permissionMiddlewareCreator.details(),
  (request, response, next) => {
    const recordId = request.params.recordId;
    dwollaService
      .getFundingSource(recordId)
      .then(async (record) => {
        const recordSerializer = new RecordSerializer({ name: MODEL_NAME });
        const recordSerialized = await recordSerializer.serialize(record);
        response.send(recordSerialized);
      })
      .catch(next);
  }
);

module.exports = router;
```


---

# 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.forestadmin.com/documentation/reference-guide/integrations/dwolla/display-dwolla-funding-sources.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.