curl --request POST \
  --url https://tars.loopscale.com/v1/markets/creditbook/build \
  --header 'Content-Type: application/json' \
  --header 'User-Wallet: <user-wallet>' \
  --data '
{
  "steps": [
    {
      "params": {
        "loan": "<string>",
        "repayParams": [
          {
            "amount": 1,
            "ledgerIndex": 1,
            "repayAll": true
          }
        ],
        "closeIfPossible": true,
        "collateralWithdrawalParams": [
          {
            "amount": 1,
            "collateralMint": "<string>",
            "closeIfEligible": true
          }
        ],
        "cpiIxs": [
          {
            "accounts": [
              {
                "isSigner": true,
                "isWritable": true,
                "pubkey": "<string>"
              }
            ],
            "data": "<string>",
            "programId": "<string>"
          }
        ],
        "cpiLuts": [
          "<string>"
        ],
        "cpiSigners": [
          "<string>"
        ],
        "setupIxs": [
          {
            "accounts": [
              {
                "isSigner": true,
                "isWritable": true,
                "pubkey": "<string>"
              }
            ],
            "data": "<string>",
            "programId": "<string>"
          }
        ],
        "setupLuts": [
          "<string>"
        ],
        "setupSigners": [
          "<string>"
        ],
        "stakeInstructions": {
          "amount": 1,
          "vault": "<string>",
          "stakeAccount": "<string>"
        },
        "unifySetup": true,
        "weightMatrixUpdates": [
          {
            "collateralIndex": 1,
            "weightMatrixUpdate": [
              1
            ]
          }
        ]
      },
      "type": "repay"
    }
  ],
  "loan": "<string>"
}
'

import requests

url = "https://tars.loopscale.com/v1/markets/creditbook/build"

payload = {
    "steps": [
        {
            "params": {
                "loan": "<string>",
                "repayParams": [
                    {
                        "amount": 1,
                        "ledgerIndex": 1,
                        "repayAll": True
                    }
                ],
                "closeIfPossible": True,
                "collateralWithdrawalParams": [
                    {
                        "amount": 1,
                        "collateralMint": "<string>",
                        "closeIfEligible": True
                    }
                ],
                "cpiIxs": [
                    {
                        "accounts": [
                            {
                                "isSigner": True,
                                "isWritable": True,
                                "pubkey": "<string>"
                            }
                        ],
                        "data": "<string>",
                        "programId": "<string>"
                    }
                ],
                "cpiLuts": ["<string>"],
                "cpiSigners": ["<string>"],
                "setupIxs": [
                    {
                        "accounts": [
                            {
                                "isSigner": True,
                                "isWritable": True,
                                "pubkey": "<string>"
                            }
                        ],
                        "data": "<string>",
                        "programId": "<string>"
                    }
                ],
                "setupLuts": ["<string>"],
                "setupSigners": ["<string>"],
                "stakeInstructions": {
                    "amount": 1,
                    "vault": "<string>",
                    "stakeAccount": "<string>"
                },
                "unifySetup": True,
                "weightMatrixUpdates": [
                    {
                        "collateralIndex": 1,
                        "weightMatrixUpdate": [1]
                    }
                ]
            },
            "type": "repay"
        }
    ],
    "loan": "<string>"
}
headers = {
    "User-Wallet": "<user-wallet>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'User-Wallet': '<user-wallet>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    steps: [
      {
        params: {
          loan: '<string>',
          repayParams: [{amount: 1, ledgerIndex: 1, repayAll: true}],
          closeIfPossible: true,
          collateralWithdrawalParams: [{amount: 1, collateralMint: '<string>', closeIfEligible: true}],
          cpiIxs: [
            {
              accounts: [{isSigner: true, isWritable: true, pubkey: '<string>'}],
              data: '<string>',
              programId: '<string>'
            }
          ],
          cpiLuts: ['<string>'],
          cpiSigners: ['<string>'],
          setupIxs: [
            {
              accounts: [{isSigner: true, isWritable: true, pubkey: '<string>'}],
              data: '<string>',
              programId: '<string>'
            }
          ],
          setupLuts: ['<string>'],
          setupSigners: ['<string>'],
          stakeInstructions: {amount: 1, vault: '<string>', stakeAccount: '<string>'},
          unifySetup: true,
          weightMatrixUpdates: [{collateralIndex: 1, weightMatrixUpdate: [1]}]
        },
        type: 'repay'
      }
    ],
    loan: '<string>'
  })
};

fetch('https://tars.loopscale.com/v1/markets/creditbook/build', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://tars.loopscale.com/v1/markets/creditbook/build",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'steps' => [
        [
                'params' => [
                                'loan' => '<string>',
                                'repayParams' => [
                                                                [
                                                                                                                                'amount' => 1,
                                                                                                                                'ledgerIndex' => 1,
                                                                                                                                'repayAll' => true
                                                                ]
                                ],
                                'closeIfPossible' => true,
                                'collateralWithdrawalParams' => [
                                                                [
                                                                                                                                'amount' => 1,
                                                                                                                                'collateralMint' => '<string>',
                                                                                                                                'closeIfEligible' => true
                                                                ]
                                ],
                                'cpiIxs' => [
                                                                [
                                                                                                                                'accounts' => [
                                                                                                                                                                                                                                                                [
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                'isSigner' => true,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                'isWritable' => true,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                'pubkey' => '<string>'
                                                                                                                                                                                                                                                                ]
                                                                                                                                ],
                                                                                                                                'data' => '<string>',
                                                                                                                                'programId' => '<string>'
                                                                ]
                                ],
                                'cpiLuts' => [
                                                                '<string>'
                                ],
                                'cpiSigners' => [
                                                                '<string>'
                                ],
                                'setupIxs' => [
                                                                [
                                                                                                                                'accounts' => [
                                                                                                                                                                                                                                                                [
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                'isSigner' => true,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                'isWritable' => true,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                'pubkey' => '<string>'
                                                                                                                                                                                                                                                                ]
                                                                                                                                ],
                                                                                                                                'data' => '<string>',
                                                                                                                                'programId' => '<string>'
                                                                ]
                                ],
                                'setupLuts' => [
                                                                '<string>'
                                ],
                                'setupSigners' => [
                                                                '<string>'
                                ],
                                'stakeInstructions' => [
                                                                'amount' => 1,
                                                                'vault' => '<string>',
                                                                'stakeAccount' => '<string>'
                                ],
                                'unifySetup' => true,
                                'weightMatrixUpdates' => [
                                                                [
                                                                                                                                'collateralIndex' => 1,
                                                                                                                                'weightMatrixUpdate' => [
                                                                                                                                                                                                                                                                1
                                                                                                                                ]
                                                                ]
                                ]
                ],
                'type' => 'repay'
        ]
    ],
    'loan' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "User-Wallet: <user-wallet>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://tars.loopscale.com/v1/markets/creditbook/build"

	payload := strings.NewReader("{\n  \"steps\": [\n    {\n      \"params\": {\n        \"loan\": \"<string>\",\n        \"repayParams\": [\n          {\n            \"amount\": 1,\n            \"ledgerIndex\": 1,\n            \"repayAll\": true\n          }\n        ],\n        \"closeIfPossible\": true,\n        \"collateralWithdrawalParams\": [\n          {\n            \"amount\": 1,\n            \"collateralMint\": \"<string>\",\n            \"closeIfEligible\": true\n          }\n        ],\n        \"cpiIxs\": [\n          {\n            \"accounts\": [\n              {\n                \"isSigner\": true,\n                \"isWritable\": true,\n                \"pubkey\": \"<string>\"\n              }\n            ],\n            \"data\": \"<string>\",\n            \"programId\": \"<string>\"\n          }\n        ],\n        \"cpiLuts\": [\n          \"<string>\"\n        ],\n        \"cpiSigners\": [\n          \"<string>\"\n        ],\n        \"setupIxs\": [\n          {\n            \"accounts\": [\n              {\n                \"isSigner\": true,\n                \"isWritable\": true,\n                \"pubkey\": \"<string>\"\n              }\n            ],\n            \"data\": \"<string>\",\n            \"programId\": \"<string>\"\n          }\n        ],\n        \"setupLuts\": [\n          \"<string>\"\n        ],\n        \"setupSigners\": [\n          \"<string>\"\n        ],\n        \"stakeInstructions\": {\n          \"amount\": 1,\n          \"vault\": \"<string>\",\n          \"stakeAccount\": \"<string>\"\n        },\n        \"unifySetup\": true,\n        \"weightMatrixUpdates\": [\n          {\n            \"collateralIndex\": 1,\n            \"weightMatrixUpdate\": [\n              1\n            ]\n          }\n        ]\n      },\n      \"type\": \"repay\"\n    }\n  ],\n  \"loan\": \"<string>\"\n}")

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

	req.Header.Add("User-Wallet", "<user-wallet>")
	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))

}

HttpResponse<String> response = Unirest.post("https://tars.loopscale.com/v1/markets/creditbook/build")
  .header("User-Wallet", "<user-wallet>")
  .header("Content-Type", "application/json")
  .body("{\n  \"steps\": [\n    {\n      \"params\": {\n        \"loan\": \"<string>\",\n        \"repayParams\": [\n          {\n            \"amount\": 1,\n            \"ledgerIndex\": 1,\n            \"repayAll\": true\n          }\n        ],\n        \"closeIfPossible\": true,\n        \"collateralWithdrawalParams\": [\n          {\n            \"amount\": 1,\n            \"collateralMint\": \"<string>\",\n            \"closeIfEligible\": true\n          }\n        ],\n        \"cpiIxs\": [\n          {\n            \"accounts\": [\n              {\n                \"isSigner\": true,\n                \"isWritable\": true,\n                \"pubkey\": \"<string>\"\n              }\n            ],\n            \"data\": \"<string>\",\n            \"programId\": \"<string>\"\n          }\n        ],\n        \"cpiLuts\": [\n          \"<string>\"\n        ],\n        \"cpiSigners\": [\n          \"<string>\"\n        ],\n        \"setupIxs\": [\n          {\n            \"accounts\": [\n              {\n                \"isSigner\": true,\n                \"isWritable\": true,\n                \"pubkey\": \"<string>\"\n              }\n            ],\n            \"data\": \"<string>\",\n            \"programId\": \"<string>\"\n          }\n        ],\n        \"setupLuts\": [\n          \"<string>\"\n        ],\n        \"setupSigners\": [\n          \"<string>\"\n        ],\n        \"stakeInstructions\": {\n          \"amount\": 1,\n          \"vault\": \"<string>\",\n          \"stakeAccount\": \"<string>\"\n        },\n        \"unifySetup\": true,\n        \"weightMatrixUpdates\": [\n          {\n            \"collateralIndex\": 1,\n            \"weightMatrixUpdate\": [\n              1\n            ]\n          }\n        ]\n      },\n      \"type\": \"repay\"\n    }\n  ],\n  \"loan\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://tars.loopscale.com/v1/markets/creditbook/build")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["User-Wallet"] = '<user-wallet>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"steps\": [\n    {\n      \"params\": {\n        \"loan\": \"<string>\",\n        \"repayParams\": [\n          {\n            \"amount\": 1,\n            \"ledgerIndex\": 1,\n            \"repayAll\": true\n          }\n        ],\n        \"closeIfPossible\": true,\n        \"collateralWithdrawalParams\": [\n          {\n            \"amount\": 1,\n            \"collateralMint\": \"<string>\",\n            \"closeIfEligible\": true\n          }\n        ],\n        \"cpiIxs\": [\n          {\n            \"accounts\": [\n              {\n                \"isSigner\": true,\n                \"isWritable\": true,\n                \"pubkey\": \"<string>\"\n              }\n            ],\n            \"data\": \"<string>\",\n            \"programId\": \"<string>\"\n          }\n        ],\n        \"cpiLuts\": [\n          \"<string>\"\n        ],\n        \"cpiSigners\": [\n          \"<string>\"\n        ],\n        \"setupIxs\": [\n          {\n            \"accounts\": [\n              {\n                \"isSigner\": true,\n                \"isWritable\": true,\n                \"pubkey\": \"<string>\"\n              }\n            ],\n            \"data\": \"<string>\",\n            \"programId\": \"<string>\"\n          }\n        ],\n        \"setupLuts\": [\n          \"<string>\"\n        ],\n        \"setupSigners\": [\n          \"<string>\"\n        ],\n        \"stakeInstructions\": {\n          \"amount\": 1,\n          \"vault\": \"<string>\",\n          \"stakeAccount\": \"<string>\"\n        },\n        \"unifySetup\": true,\n        \"weightMatrixUpdates\": [\n          {\n            \"collateralIndex\": 1,\n            \"weightMatrixUpdate\": [\n              1\n            ]\n          }\n        ]\n      },\n      \"type\": \"repay\"\n    }\n  ],\n  \"loan\": \"<string>\"\n}"

response = http.request(request)
puts response.read_body

{
  "loan": "<string>",
  "transactions": [
    {
      "message": "<string>",
      "signatures": [
        {
          "publicKey": "<string>",
          "signature": "<string>"
        }
      ]
    }
  ]
}

{
  "error": {
    "code": 400,
    "message": "Request could not be processed.",
    "simulation": {
      "decoded": "<string>",
      "logs": [
        "<string>"
      ],
      "serializedTransaction": "<string>"
    }
  }
}

{
  "error": {
    "code": 400,
    "message": "Request could not be processed.",
    "simulation": {
      "decoded": "<string>",
      "logs": [
        "<string>"
      ],
      "serializedTransaction": "<string>"
    }
  }
}

{
  "error": {
    "code": 400,
    "message": "Request could not be processed.",
    "simulation": {
      "decoded": "<string>",
      "logs": [
        "<string>"
      ],
      "serializedTransaction": "<string>"
    }
  }
}

{
  "error": {
    "code": 400,
    "message": "Request could not be processed.",
    "simulation": {
      "decoded": "<string>",
      "logs": [
        "<string>"
      ],
      "serializedTransaction": "<string>"
    }
  }
}