curl --request POST \
  --url https://sandbox.api.fin.com/v2/customers/{customer_id}/wallets \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "wallets": [
    {
      "rail": "SOLANA",
      "currency": [
        "USDC"
      ]
    },
    {
      "rail": "ETHEREUM",
      "currency": [
        "USDC"
      ]
    }
  ]
}
'

const url = 'https://sandbox.api.fin.com/v2/customers/{customer_id}/wallets';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    wallets: [{rail: 'SOLANA', currency: ['USDC']}, {rail: 'ETHEREUM', currency: ['USDC']}]
  })
};

fetch(url, options)
  .then(res => res.json())
  .then(json => console.log(json))
  .catch(err => console.error(err));

HttpResponse<String> response = Unirest.post("https://sandbox.api.fin.com/v2/customers/{customer_id}/wallets")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"wallets\": [\n    {\n      \"rail\": \"SOLANA\",\n      \"currency\": [\n        \"USDC\"\n      ]\n    },\n    {\n      \"rail\": \"ETHEREUM\",\n      \"currency\": [\n        \"USDC\"\n      ]\n    }\n  ]\n}")
  .asString();

import requests

url = "https://sandbox.api.fin.com/v2/customers/{customer_id}/wallets"

payload = { "wallets": [
        {
            "rail": "SOLANA",
            "currency": ["USDC"]
        },
        {
            "rail": "ETHEREUM",
            "currency": ["USDC"]
        }
    ] }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://sandbox.api.fin.com/v2/customers/{customer_id}/wallets"

	payload := strings.NewReader("{\n  \"wallets\": [\n    {\n      \"rail\": \"SOLANA\",\n      \"currency\": [\n        \"USDC\"\n      ]\n    },\n    {\n      \"rail\": \"ETHEREUM\",\n      \"currency\": [\n        \"USDC\"\n      ]\n    }\n  ]\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

{
  "data": {
    "message": "Request is being processed",
    "data": [
      {
        "id": "b1e2c3d4-4d5e-6f70-8a90-1b2c3d4e5f60",
        "rail": "SOLANA",
        "currency": "USDC",
        "status": "PENDING"
      },
      {
        "id": "d3a4e5f6-4d5e-6f70-8a90-1b2c3d4e5f62",
        "rail": "ETHEREUM",
        "currency": "USDC",
        "status": "PENDING"
      }
    ]
  }
}

{
  "message": "Authentication failed"
}

{
  "message": "one or more wallets already exist for this customer",
  "collisions": [
    {
      "rail": "SOLANA",
      "currency": "USDC"
    }
  ]
}

{
  "message": "<string>",
  "errors": [
    {}
  ]
}