{"activeVersionTag":"latest","latestAvailableVersionTag":"latest","collection":{"info":{"_postman_id":"5c3fe268-1859-4608-a837-45df894ea620","name":"Merchant API","description":"# Authentication\n\nAPI Endpoint: [https://api.swup.ai/](https://api.swup.ai/merchant/)\n\nPHP client example: [https://github.com/swup-dev/Swup-PHP-SDK](https://github.com/swup-dev/Swup-PHP-SDK)\n\nNode.JS client example: [https://github.com/swup-dev/Swup-Node.js-SDK](https://github.com/swup-dev/Swup-Node.js-SDK)\n\nEach request must be sent with headers:\n\n- **x-merchant-id -** Your merchant ID.\n    \n- **x-nonce** - Unique request ID\n    \n- **x-merchant-signature -** Request signature\n    \n    - Hash value with secret key by **sha256** hashing algorithm, value **x-nonce + json_string_data.**\n        \n    - Example**:**\n        \n        - **x-nonce** = `NONCE_VAL`\n            \n        - **json_string_data** = `{\"amount\":\"100\",\"currency\":\"USDT_TRX\",\"address\":\"TMzz9MrUhHMBDZwDsX1PAJ3wVDBXdEm9iN\",\"externalId\":\"333311\"}`. Note: If data is empty or method is GET use `{}` instead of **`[]`**\n            \n        - **secret key** = `SECRET_KEY`\n            \n        - **x-nonce + json_string_data =** `NONCE_VAL{\"amount\":\"100\",\"currency\":\"USDT_TRX\",\"address\":\"TMzz9MrUhHMBDZwDsX1PAJ3wVDBXdEm9iN\",\"externalId\":\"333311\"}`\n            \n        - singnature = `CALCULATED_SIGNATURE`\n            \n\n# Currency\n\nCurrency must be transferred in the format:\n\n- for coin: e.g. `TRX`, `BTC`, `ETH` etc;\n    \n- for token, token_token-standard: e.g. `USDT_ERC-20`, `USDC_TRC-20` etc.\n    \n\n# Callbacks\n\nCallbacks come to the `callbackUrl` specified in the invoice or, if not specified, to the `callbackUrl` from the merchant's settings.\n\nYou will get JSON with invoice structure like in **Get invoice by ID endpoint.** Each callback will contain a signature, it is generated according to the principles described in the **Authentication** block. You must generate a request signature from your side and compare your hash and the hash from the headers (`x-merchant-signature`) using the `x-nonce` from the headers, for key pair with `x-merchant-id` from headers.\n\nCallbacks will be sent until they receive a successful response (status code 2xx). There are 10 attempts to send a callback to get a successful response.\n\n1. **Immediately** after invoice update;\n    \n2. **1 minute** after sending the last callback;\n    \n3. **3 minutes** after sending the last callback;\n    \n4. **5 minutes** after sending the last callback;\n    \n5. **10 minutes** after sending the last callback;\n    \n6. **20 minutes** after sending the last callback;\n    \n7. **30 minutes** after sending the last callback;\n    \n8. **1 hour** after sending the last callback;\n    \n9. **2 hours** after sending the last callback;\n    \n10. **3 hours** after sending the last callback;\n    \n\n# API","schema":"https://schema.getpostman.com/json/collection/v2.0.0/collection.json","isPublicCollection":false,"owner":"24821794","collectionId":"5c3fe268-1859-4608-a837-45df894ea620","publishedId":"2sAXxLCEK8","public":true,"publicUrl":"https://documenter-api.postman.tech/view/24821794/2sAXxLCEK8","privateUrl":"https://go.postman.co/documentation/24821794-5c3fe268-1859-4608-a837-45df894ea620","customColor":{"top-bar":"FFFFFF","right-sidebar":"303030","highlight":"FF6C37"},"documentationLayout":"classic-double-column","customisation":{"metaTags":[{"name":"description","value":""},{"name":"title","value":""}],"appearance":{"default":"light","themes":[{"name":"dark","logo":null,"colors":{"top-bar":"212121","right-sidebar":"303030","highlight":"FF6C37"}},{"name":"light","logo":null,"colors":{"top-bar":"FFFFFF","right-sidebar":"303030","highlight":"FF6C37"}}]}},"version":"8.10.1","publishDate":"2024-10-08T07:11:44.000Z","activeVersionTag":"latest","documentationTheme":"light","metaTags":{"title":"","description":""},"logos":{"logoLight":null,"logoDark":null}},"statusCode":200},"environments":[],"user":{"authenticated":false,"permissions":{"publish":false}},"run":{"button":{"js":"https://run.pstmn.io/button.js","css":"https://run.pstmn.io/button.css"}},"web":"https://www.getpostman.com/","team":{"logo":"https://res.cloudinary.com/postman/image/upload/t_team_logo_pubdoc/v1/team/768118b36f06c94b0306958b980558e6915839447e859fe16906e29d683976f0","favicon":""},"isEnvFetchError":false,"languages":"[{\"key\":\"csharp\",\"label\":\"C#\",\"variant\":\"HttpClient\"},{\"key\":\"csharp\",\"label\":\"C#\",\"variant\":\"RestSharp\"},{\"key\":\"curl\",\"label\":\"cURL\",\"variant\":\"cURL\"},{\"key\":\"dart\",\"label\":\"Dart\",\"variant\":\"http\"},{\"key\":\"go\",\"label\":\"Go\",\"variant\":\"Native\"},{\"key\":\"http\",\"label\":\"HTTP\",\"variant\":\"HTTP\"},{\"key\":\"java\",\"label\":\"Java\",\"variant\":\"OkHttp\"},{\"key\":\"java\",\"label\":\"Java\",\"variant\":\"Unirest\"},{\"key\":\"javascript\",\"label\":\"JavaScript\",\"variant\":\"Fetch\"},{\"key\":\"javascript\",\"label\":\"JavaScript\",\"variant\":\"jQuery\"},{\"key\":\"javascript\",\"label\":\"JavaScript\",\"variant\":\"XHR\"},{\"key\":\"c\",\"label\":\"C\",\"variant\":\"libcurl\"},{\"key\":\"nodejs\",\"label\":\"NodeJs\",\"variant\":\"Axios\"},{\"key\":\"nodejs\",\"label\":\"NodeJs\",\"variant\":\"Native\"},{\"key\":\"nodejs\",\"label\":\"NodeJs\",\"variant\":\"Request\"},{\"key\":\"nodejs\",\"label\":\"NodeJs\",\"variant\":\"Unirest\"},{\"key\":\"objective-c\",\"label\":\"Objective-C\",\"variant\":\"NSURLSession\"},{\"key\":\"ocaml\",\"label\":\"OCaml\",\"variant\":\"Cohttp\"},{\"key\":\"php\",\"label\":\"PHP\",\"variant\":\"cURL\"},{\"key\":\"php\",\"label\":\"PHP\",\"variant\":\"Guzzle\"},{\"key\":\"php\",\"label\":\"PHP\",\"variant\":\"HTTP_Request2\"},{\"key\":\"php\",\"label\":\"PHP\",\"variant\":\"pecl_http\"},{\"key\":\"powershell\",\"label\":\"PowerShell\",\"variant\":\"RestMethod\"},{\"key\":\"python\",\"label\":\"Python\",\"variant\":\"http.client\"},{\"key\":\"python\",\"label\":\"Python\",\"variant\":\"Requests\"},{\"key\":\"r\",\"label\":\"R\",\"variant\":\"httr\"},{\"key\":\"r\",\"label\":\"R\",\"variant\":\"RCurl\"},{\"key\":\"ruby\",\"label\":\"Ruby\",\"variant\":\"Net::HTTP\"},{\"key\":\"shell\",\"label\":\"Shell\",\"variant\":\"Httpie\"},{\"key\":\"shell\",\"label\":\"Shell\",\"variant\":\"wget\"},{\"key\":\"swift\",\"label\":\"Swift\",\"variant\":\"URLSession\"}]","languageSettings":[{"key":"csharp","label":"C#","variant":"HttpClient"},{"key":"csharp","label":"C#","variant":"RestSharp"},{"key":"curl","label":"cURL","variant":"cURL"},{"key":"dart","label":"Dart","variant":"http"},{"key":"go","label":"Go","variant":"Native"},{"key":"http","label":"HTTP","variant":"HTTP"},{"key":"java","label":"Java","variant":"OkHttp"},{"key":"java","label":"Java","variant":"Unirest"},{"key":"javascript","label":"JavaScript","variant":"Fetch"},{"key":"javascript","label":"JavaScript","variant":"jQuery"},{"key":"javascript","label":"JavaScript","variant":"XHR"},{"key":"c","label":"C","variant":"libcurl"},{"key":"nodejs","label":"NodeJs","variant":"Axios"},{"key":"nodejs","label":"NodeJs","variant":"Native"},{"key":"nodejs","label":"NodeJs","variant":"Request"},{"key":"nodejs","label":"NodeJs","variant":"Unirest"},{"key":"objective-c","label":"Objective-C","variant":"NSURLSession"},{"key":"ocaml","label":"OCaml","variant":"Cohttp"},{"key":"php","label":"PHP","variant":"cURL"},{"key":"php","label":"PHP","variant":"Guzzle"},{"key":"php","label":"PHP","variant":"HTTP_Request2"},{"key":"php","label":"PHP","variant":"pecl_http"},{"key":"powershell","label":"PowerShell","variant":"RestMethod"},{"key":"python","label":"Python","variant":"http.client"},{"key":"python","label":"Python","variant":"Requests"},{"key":"r","label":"R","variant":"httr"},{"key":"r","label":"R","variant":"RCurl"},{"key":"ruby","label":"Ruby","variant":"Net::HTTP"},{"key":"shell","label":"Shell","variant":"Httpie"},{"key":"shell","label":"Shell","variant":"wget"},{"key":"swift","label":"Swift","variant":"URLSession"}],"languageOptions":[{"label":"C# - HttpClient","value":"csharp - HttpClient - C#"},{"label":"C# - RestSharp","value":"csharp - RestSharp - C#"},{"label":"cURL - cURL","value":"curl - cURL - cURL"},{"label":"Dart - http","value":"dart - http - Dart"},{"label":"Go - Native","value":"go - Native - Go"},{"label":"HTTP - HTTP","value":"http - HTTP - HTTP"},{"label":"Java - OkHttp","value":"java - OkHttp - Java"},{"label":"Java - Unirest","value":"java - Unirest - Java"},{"label":"JavaScript - Fetch","value":"javascript - Fetch - JavaScript"},{"label":"JavaScript - jQuery","value":"javascript - jQuery - JavaScript"},{"label":"JavaScript - XHR","value":"javascript - XHR - JavaScript"},{"label":"C - libcurl","value":"c - libcurl - C"},{"label":"NodeJs - Axios","value":"nodejs - Axios - NodeJs"},{"label":"NodeJs - Native","value":"nodejs - Native - NodeJs"},{"label":"NodeJs - Request","value":"nodejs - Request - NodeJs"},{"label":"NodeJs - Unirest","value":"nodejs - Unirest - NodeJs"},{"label":"Objective-C - NSURLSession","value":"objective-c - NSURLSession - Objective-C"},{"label":"OCaml - Cohttp","value":"ocaml - Cohttp - OCaml"},{"label":"PHP - cURL","value":"php - cURL - PHP"},{"label":"PHP - Guzzle","value":"php - Guzzle - PHP"},{"label":"PHP - HTTP_Request2","value":"php - HTTP_Request2 - PHP"},{"label":"PHP - pecl_http","value":"php - pecl_http - PHP"},{"label":"PowerShell - RestMethod","value":"powershell - RestMethod - PowerShell"},{"label":"Python - http.client","value":"python - http.client - Python"},{"label":"Python - Requests","value":"python - Requests - Python"},{"label":"R - httr","value":"r - httr - R"},{"label":"R - RCurl","value":"r - RCurl - R"},{"label":"Ruby - Net::HTTP","value":"ruby - Net::HTTP - Ruby"},{"label":"Shell - Httpie","value":"shell - Httpie - Shell"},{"label":"Shell - wget","value":"shell - wget - Shell"},{"label":"Swift - URLSession","value":"swift - URLSession - Swift"}],"layoutOptions":[{"value":"classic-single-column","label":"Single Column"},{"value":"classic-double-column","label":"Double Column"}],"versionOptions":[],"environmentOptions":[{"value":"0","label":"No Environment"}],"canonicalUrl":"https://documenter.gw.postman.com/view/metadata/2sAXxLCEK8"}