This page describes how to use sample tokens to test your integration.

## Generate sample tokens

For direct integrations, in order to test token decryption on your server, you can generate
sample tokens if you set `ENVIRONMENT_TEST` when you construct a
`PaymentsClient` instance.

When the `PaymentsClient` instance is constructed with the environment set to
`ENVIRONMENT_TEST`, the calls to `loadPaymentData` work as usual and request
that the user selects one of their real cards. However, it never actually returns real information
from the card that was selected, and instead, the token that results always has a constant
payload.

> [!CAUTION]
> **Important:** Your real card details are never used when in `ENVIRONMENT_TEST`, but you must [add at least one chargeable card to your Google Account](https://support.google.com/pay/answer/7625139) before you proceed. In addition, to generate sample tokens for tokenized cards, you need to [install and add at least one supported payment method to the Google Pay app](https://support.google.com/pay/answer/7625139?visit_id=636867994410013901-997987106&rd=1).

> [!NOTE]
> **Note:** Google doesn't provide test cards. Reach out to your bank if you need chargeable test cards.

## Verify signature

The tokens produced in `ENVIRONMENT_TEST` are encrypted with your test public key that
was previously sent to Google.

The tokens are signed with [Google's test keys](https://payments.developers.google.com/paymentmethodtoken/test/keys.json). If you use Tink, ensure that
`.fetchSenderVerifyingKeysWith(GooglePaymentsPublicKeysManager.INSTANCE_TEST)` is set
when you build a `PaymentMethodTokenRecipient` object.

## Decrypted payload

> [!CAUTION]
> **Important:** The payload samples provided here are illustrative only.

Once the sample token is decrypted, you receive the cleartext payload. The payload structure
depends on whether the card that was selected is tokenized, which means added to Google Wallet. In addition, the payload for tokenized cards is different, which depends upon the card
network. The payload for non-tokenized cards is always the same, regardless of the card network.

The following three fields might differ in your decrypted payload compared to the samples below:

- `messageExpiration`: This is set one week from the current time.
- `messageId`: This is randomly generated for each payload.
- `expirationYear`: This is set five years from the current year.

The structure of the decrypted payload varies between two protocol versions, ECv1 and ECv2. If you
implement a new integration, the version is ECv2. If you're uncertain about the protocol version,
confirm it with your Google point of contact.

### Non-tokenized card

#### Visa

The following is an example of a decrypted payload for non-tokenized Visa cards:

### ECv2

```
{
    "gatewayMerchantId": "some-merchant-id",
    "messageExpiration": "1650574736277",
    "messageId": "AH2Ejtc88ZHJ-2aYBQWzHwvp6l0JsCHgxVt8s91A-ZUikaXNbcjsFm6gg9ExeVR-jzIyT-mJvA_ntvfRsDDOH2jnKMjdTtXIJvPt0NBUU45R7-gnjxkx-sI0ldcWvbDHsV0735yFDbWk",
    "paymentMethod": "CARD",
    "paymentMethodDetails": {
        "expirationYear": 2028,
        "expirationMonth": 12,
        "pan": "4111111111111111",
        "authMethod": "PAN_ONLY"
    }
}
```

### ECv1

```
{
  "messageExpiration": "1507738377032",
  "paymentMethod": "CARD",
  "messageId": "AH2EjtcHYs1Ye-ZIZuZXd7eNO4QjQfZjBDtP2ti0tob_a5o22lHmGWHsBVYrrSylkFC3ZTsRdvMadQpwOGCIl7XxhTKcfElmgF7UFbcI8CeUZCWRmbTH5s7h69Baqr4FAM735VNThPiP",
  "paymentMethodDetails": {
    "expirationYear": 2028,
    "expirationMonth": 12,
    "pan": "4111111111111111"
  }
}
```

#### Mastercard

The following is an example of a decrypted payload for non-tokenized Mastercard cards:

### ECv2

```
{
    "gatewayMerchantId": "some-merchant-id",
    "messageExpiration": "1650574585777",
    "messageId": "AH2Ejte23Sp0DBWqKVQ1d8ICVQialPGgXSsTT4NnCjNy3i-jdJg6B_wllO8590dFfrLg16GqGcuSrEPjl-sQZ-K8sKCL62ahwh5kzUv4ggLwioImJmuEuKfAiEQBRW0L8zlo0Nv6LFuk",
    "paymentMethod": "CARD",
    "paymentMethodDetails": {
        "expirationYear": 2028,
        "expirationMonth": 12,
        "pan": "5555555555554444",
        "authMethod": "PAN_ONLY"
    }
}
```

### ECv1

```
{
  "messageExpiration": "1507738377032",
  "paymentMethod": "CARD",
  "messageId": "AH2EjtcHYs1Ye-ZIZuZXd7eNO4QjQfZjBDtP2ti0tob_a5o22lHmGWHsBVYrrSylkFC3ZTsRdvMadQpwOGCIl7XxhTKcfElmgF7UFbcI8CeUZCWRmbTH5s7h69Baqr4FAM735VNThPiP",
  "paymentMethodDetails": {
    "expirationYear": 2028,
    "expirationMonth": 12,
    "pan": "5555555555554444"
  }
}
```

#### American Express

The following is an example of a decrypted payload for non-tokenized Amex cards:

### ECv2

```
{
    "gatewayMerchantId": "some-merchant-id",
    "messageExpiration": "1650574857349",
    "messageId": "AH2EjtcmoURSXm2RhZ8ihnJrsty-7Ewm3NEnJDM-Atw9ewbIPvuarglows0vtaCV33b4z3PpM5RsMklbpe0aNPK5_BanGxmp_JSsOEtZYuf4m3cHTtKnxpQeonN07XDK-DUPKAaRwLfY",
    "paymentMethod": "CARD",
    "paymentMethodDetails": {
        "expirationYear": 2028,
        "expirationMonth": 12,
        "pan": "378282246310005",
        "authMethod": "PAN_ONLY"
    }
}
```

### ECv1

```
{
  "messageExpiration": "1507738377032",
  "paymentMethod": "CARD",
  "messageId": "AH2EjtcHYs1Ye-ZIZuZXd7eNO4QjQfZjBDtP2ti0tob_a5o22lHmGWHsBVYrrSylkFC3ZTsRdvMadQpwOGCIl7XxhTKcfElmgF7UFbcI8CeUZCWRmbTH5s7h69Baqr4FAM735VNThPiP",
  "paymentMethodDetails": {
    "expirationYear": 2028,
    "expirationMonth": 12,
    "pan": "378282246310005"
  }
}
```

#### Discover

The following is an example of a decrypted payload for non-tokenized Discover cards:

### ECv2

```
{
    "gatewayMerchantId": "some-merchant-id",
    "messageExpiration": "1650574781399",
    "messageId": "AH2EjteSxPPpbJOXKXzG1Cqkh1kzJz0UP1AG4w75n9q7gCtWsawfRlqtUZofjIBnKlbozvASxKkkdbjv2-rOfNGd_st4kFqPeb6O3IE-fXeIcHzH8x56tMRylEnfnrF6x01ET8KdUeLS",
    "paymentMethod": "CARD",
    "paymentMethodDetails": {
        "expirationYear": 2028,
        "expirationMonth": 12,
        "pan": "6011111111111117",
        "authMethod": "PAN_ONLY"
    }
}
```

### ECv1

```
{
  "messageExpiration": "1507738377032",
  "paymentMethod": "CARD",
  "messageId": "AH2EjtcHYs1Ye-ZIZuZXd7eNO4QjQfZjBDtP2ti0tob_a5o22lHmGWHsBVYrrSylkFC3ZTsRdvMadQpwOGCIl7XxhTKcfElmgF7UFbcI8CeUZCWRmbTH5s7h69Baqr4FAM735VNThPiP",
  "paymentMethodDetails": {
    "expirationYear": 2028,
    "expirationMonth": 12,
    "pan": "6011111111111117"
  }
}
```

#### JCB

The following is an example of a decrypted payload for non-tokenized JCB cards:

### ECv2

```
{
        {
          "gatewayMerchantId": "some-merchant-id",
          "messageExpiration": "1650574736277",
          "messageId": "AH2Ejtc88ZHJ-2aYBQWzHwvp6l0JsCHgxVt8s91A-ZUikaXNbcjsFm6gg9ExeVR-jzIyT-mJvA_ntvfRsDDOH2jnKMjdTtXIJvPt0NBUU45R7-gnjxkx-sI0ldcWvbDHsV0735yFDbWk",
          "paymentMethod": "CARD",
          "paymentMethodDetails": {
              "expirationYear": 2028,
              "expirationMonth": 12,
              "pan": "4111111111111111",
              "authMethod": "PAN_ONLY"
          }
      }
```

### ECv1

```
{
        {
          "messageExpiration": "1507738377032",
          "paymentMethod": "CARD",
          "messageId": "AH2EjtcHYs1Ye-ZIZuZXd7eNO4QjQfZjBDtP2ti0tob_a5o22lHmGWHsBVYrrSylkFC3ZTsRdvMadQpwOGCIl7XxhTKcfElmgF7UFbcI8CeUZCWRmbTH5s7h69Baqr4FAM735VNThPiP",
          "paymentMethodDetails": {
            "expirationYear": 2028,
            "expirationMonth": 12,
            "pan": "4111111111111111"
          }
        }
  }
}
```

### Tokenized card

A tokenized card is a card that's added to Google Wallet.

The decrypted payload of a tokenized card depends on the type of card selected. The following three
examples show decrypted payloads for different types of tokenized cards.

#### Visa

The following is an example of a decrypted payload for tokenized Visa cards:

### ECv2

```
{
    "gatewayMerchantId": "some-merchant-id",
    "messageExpiration": "1561533871082",
    "messageId": "AH2Ejtc8qBlP_MCAV0jJG7ErQKeDrkEUtQ0N3QRvPXWJc-jgC0VTfgmarDRZvTwuzirQPdUjkMkiQ7tnDidZbtlQTO-mAgMIdXRMuYedhZXnCcokmkJOOnE7jBn-pvkyBncOgpPWFFn3",
    "paymentMethod": "CARD",
    "paymentMethodDetails": {
        "expirationYear": 2028,
        "expirationMonth": 12,
        "pan": "4895370012003478",
        "authMethod": "CRYPTOGRAM_3DS",
        "eciIndicator": "07",
        "cryptogram": "AgAAAAAABk4DWZ4C28yUQAAAAAA="
    }
}
```

### ECv1

```
{
  "messageExpiration": "1507738377032",
  "paymentMethod": "TOKENIZED_CARD",
  "messageId": "AH2EjtcHYs1Ye-ZIZuZXd7eNO4QjQfZjBDtP2ti0tob_a5o22lHmGWHsBVYrrSylkFC3ZTsRdvMadQpwOGCIl7XxhTKcfElmgF7UFbcI8CeUZCWRmbTH5s7h69Baqr4FAM735VNThPiP",
  "paymentMethodDetails": {
    "expirationYear": 2028,
    "dpan": "4895370012003478",
    "expirationMonth": 12,
    "authMethod": "3DS",
    "3dsCryptogram": "AgAAAAAABk4DWZ4C28yUQAAAAAA=",
    "3dsEciIndicator": "07"
  }
}
```

#### American Express

The following is an example of a decrypted payload for tokenized American Express cards:

### ECv2

```
{
    "gatewayMerchantId": "some-merchant-id",
    "messageExpiration": "1561534208255",
    "messageId": "AH2Ejtf3Lp6LzjK6BswXBvVKZapBJNgMUbVHF_TORaVi7lV0tvRfzvApsZm-RAXF_szQq9qS_BwLTgZGrXvk0ZydZwUISo4x6dxojDoz0fl7loXwZ8JApFrQWU__ExxljKY4Y4mu2aQz",
    "paymentMethod": "CARD",
    "paymentMethodDetails": {
        "expirationYear": 2028,
        "expirationMonth": 12,
        "pan": "370295136149943",
        "authMethod": "CRYPTOGRAM_3DS",
        "cryptogram": "JnPYbs6FkC1tiVLREAABoAAAkgA="
    }
}
```

### ECv1

```
{
  "messageExpiration": "1507738377032",
  "paymentMethod": "TOKENIZED_CARD",
  "messageId": "AH2EjtcHYs1Ye-ZIZuZXd7eNO4QjQfZjBDtP2ti0tob_a5o22lHmGWHsBVYrrSylkFC3ZTsRdvMadQpwOGCIl7XxhTKcfElmgF7UFbcI8CeUZCWRmbTH5s7h69Baqr4FAM735VNThPiP",
  "paymentMethodDetails": {
    "expirationYear": 2028,
    "dpan": "370295136149943",
    "expirationMonth": 12,
    "authMethod": "3DS",
    "3dsCryptogram": "JnPYbs6FkC1tiVLREAABoAAAkgA="
  }
}
```

#### All other networks

The following is an example of a decrypted payload for tokenized cards for all the other
networks:

### ECv2

```
{
    "gatewayMerchantId": "some-merchant-id",
    "messageExpiration": "1561534208255",
    "messageId": "AH2EjterqtEqlB9vQvy2kJEugwCDYtMzVtLrVH26Qd1RDFK_EFsFmPdpPOqcCIedXNpAc6sCM61GuYM_bgVl930tU8I0Ar0WUx87MIw36skUC-IT_APvbx4qRqw9Hfu2W-7zY6LMdgZ5",
    "paymentMethod": "CARD",
    "paymentMethodDetails": {
        "expirationYear": 2028,
        "expirationMonth": 12,
        "pan": "5204240250197840",
        "authMethod": "CRYPTOGRAM_3DS",
        "cryptogram": "ALnt+yWSJdXBACMLLWMNGgADFA=="
    }
}
```

### ECv1

```
{
  "messageExpiration": "1507738377032",
  "paymentMethod": "TOKENIZED_CARD",
  "messageId": "AH2EjtcHYs1Ye-ZIZuZXd7eNO4QjQfZjBDtP2ti0tob_a5o22lHmGWHsBVYrrSylkFC3ZTsRdvMadQpwOGCIl7XxhTKcfElmgF7UFbcI8CeUZCWRmbTH5s7h69Baqr4FAM735VNThPiP",
  "paymentMethodDetails": {
    "expirationYear": 2028,
    "dpan": "5204240250197840",
    "expirationMonth": 12,
    "authMethod": "3DS",
    "3dsCryptogram": "ALnt+yWSJdXBACMLLWMNGgADFA=="
  }
}
```

### MIT decrypted payload

If a `tokenUpdateUrl` is specified for an Merchant Initiated Transaction (MIT), the
decrypted `token` within the [`PaymentMethodTokenizationData`](https://developers.google.com/pay/api/web/reference/response-objects.md.txt#PaymentMethodTokenizationData)
contains additional information to receive token Lifecycle Management (LCM) notifications.

| Property | Type | Necessity | Description |
|---|---|---|---|
| `merchantTokenId` | string | Always exists | Identifier for the merchant token. It's used to identify tokens while you receive token lifecycle notifications. It's only provided for qualifying MIT transactions. |

#### PAN_ONLY

The following JSON snippet is an example of the full `encryptedMessage` for a
`CARD` `paymentMethod` with a `PAN_ONLY` `authMethod`.

```javascript
{
  "paymentMethod": "CARD",
  "paymentMethodDetails": {
    "authMethod": "PAN_ONLY",
    "pan": "1111222233334444",
    "expirationMonth": 10,
    "expirationYear": 2025,
    "merchantTokenId": "merchant-token-id"
  },
  "gatewayMerchantId": "some-merchant-id",
  "messageId": "some-message-id",
  "messageExpiration": "1759309000000"
}
```

#### CRYPTOGRAM_3DS

The following JSON snippet is an example of the full `encryptedMessage` for a
`CARD` `paymentMethod` with a `CRYPTOGRAM_3DS` `authMethod`.

```javascript
{
  "paymentMethod": "CARD",
  "paymentMethodDetails": {
    "authMethod": "CRYPTOGRAM_3DS",
    "pan": "1111222233334444",
    "expirationMonth": 10,
    "expirationYear": 2025,
    "cryptogram": "AAAAAA...",
    "eciIndicator": "eci indicator",
    "merchantTokenId": "merchant-token-id"
  },
  "messageId": "some-message-id",
  "messageExpiration": "1759309000000"
}
```