Translate

{
  "id": "vssVsRO0FW6InbaY",
  "meta": {
    "instanceId": "12aa4b47b8cf3d835676e10b2bf760a80a1ff52932c9898603f7b21fc5376f59",
    "templateCredsSetupCompleted": true
  },
  "name": "Translate",
  "tags": [],
  "nodes": [
    {
      "id": "7e55613e-c304-47cb-a017-2d912014ea8e",
      "name": "Split Out",
      "type": "n8n-nodes-base.splitOut",
      "position": [
        1180,
        140
      ],
      "parameters": {
        "options": {},
        "fieldToSplitOut": "txt"
      },
      "typeVersion": 1
    },
    {
      "id": "1ab3e545-e7a1-4b3d-a190-d38cb55ebf96",
      "name": "Google Translate",
      "type": "n8n-nodes-base.googleTranslate",
      "position": [
        1620,
        140
      ],
      "parameters": {
        "text": "={{ JSON.stringify($json.parts.secondPart) }}",
        "translateTo": "={{ $json.language }}"
      },
      "credentials": {
        "googleTranslateOAuth2Api": {
          "id": "ssWzCSWk0cvCXZtz",
          "name": "Google Translate account"
        }
      },
      "typeVersion": 2
    },
    {
      "id": "07de7be3-5477-4e6c-b709-f632a3d5f162",
      "name": "Aggregate",
      "type": "n8n-nodes-base.aggregate",
      "position": [
        520,
        340
      ],
      "parameters": {
        "options": {},
        "aggregate": "aggregateAllItemData"
      },
      "typeVersion": 1
    },
    {
      "id": "cbe5892e-3661-42fb-a850-1e0448a53e0a",
      "name": "Edit Fields",
      "type": "n8n-nodes-base.set",
      "position": [
        960,
        340
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "498c663a-f372-40fb-9ac9-79f7a60875cc",
              "name": "complete_text",
              "type": "string",
              "value": "={{ $json.complete_text }}"
            },
            {
              "id": "34f3bc06-151d-4819-b6b8-515cf9c05c60",
              "name": "file",
              "type": "object",
              "value": "={{$('Receive SRT File to Translate').first().json}}"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "a4e1cc2e-bd2f-4cf7-af03-73e43cda83d3",
      "name": "Convert to File",
      "type": "n8n-nodes-base.convertToFile",
      "position": [
        1400,
        340
      ],
      "parameters": {
        "options": {
          "fileName": "={{ $json['Upload SRT file'].filename.replaceAll('.srt',` ${$('Prep Parts for Translate').first().json.language}.srt`)}}",
          "mimeType": "={{ $json['Upload SRT file'].mimetype }}"
        },
        "operation": "toBinary",
        "sourceProperty": "=data",
        "binaryPropertyName": "file"
      },
      "typeVersion": 1.1
    },
    {
      "id": "380bc679-4e08-4d5d-a263-d3d873f4f38f",
      "name": "Split SRT Lines",
      "type": "n8n-nodes-base.code",
      "position": [
        960,
        140
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "let text = $json.data\n\ndelete $json.base64\ndelete $json.binary\n\n\n// Split by single newlines\nconst lines = text.split('\\n')\n\n// Create an array to hold grouped subtitle entries\nlet subtitleGroups = []\nlet currentGroup = []\n\n// Process each line\nfor (let i = 0; i < lines.length; i++) {\n  const line = lines[i].trim()\n  \n  // If line is empty and we have content in currentGroup, \n  // it's the end of a subtitle entry\n  if (line === '' && currentGroup.length > 0) {\n    subtitleGroups.push(currentGroup.join('\\n'))\n    currentGroup = []\n  } \n  // If line is not empty, add to current group\n  else if (line !== '') {\n    currentGroup.push(line)\n  }\n}\n\n// Add the last group if it has content\nif (currentGroup.length > 0) {\n  subtitleGroups.push(currentGroup.join('\\n'))\n}\n\n// Remove any quotes at the beginning and end of the first and last entries\nif (subtitleGroups.length > 0) {\n  subtitleGroups[0] = subtitleGroups[0].replace(/^\"/, '')\n  subtitleGroups[subtitleGroups.length - 1] = subtitleGroups[subtitleGroups.length - 1].replace(/\"$/, '')\n}\n\n// Store the result\n$input.item.json.txt = subtitleGroups\n\nreturn $input.item;"
      },
      "typeVersion": 2
    },
    {
      "id": "08215886-05f6-4ecc-9c1f-55c0e4cb6194",
      "name": "Generate Binary",
      "type": "n8n-nodes-base.code",
      "position": [
        1180,
        340
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "function encodeBase64(text) {\n  try {\n    // For browser environments\n    if (typeof window !== 'undefined') {\n      // First, create a UTF-8 encoded string\n      const utf8String = encodeURIComponent(text)\n        .replace(/%([0-9A-F]{2})/g, (_, hex) => {\n          return String.fromCharCode(parseInt(hex, 16));\n        });\n      \n      // Then encode to Base64\n      return btoa(utf8String);\n    } \n    // For Node.js environments\n    else if (typeof Buffer !== 'undefined') {\n      return Buffer.from(text).toString('base64');\n    }\n    \n    throw new Error('Environment not supported for Base64 encoding');\n  } catch (error) {\n    console.error('Error encoding to Base64:', error);\n    return null;\n  }\n}\n\nlet data = encodeBase64($json.complete_text);\n\nconsole.log(data)\n\nlet file = $json.file\n\nfile.data = data;\n\nlet paddingCount = 0;\nif (data.endsWith('==')) paddingCount = 2;\nelse if (data.endsWith('=')) paddingCount = 1;\n\n// Calculate the decoded size (in bytes)\nfile.size = Math.floor(data.length * 3 / 4) - paddingCount;\n\n\nreturn file"
      },
      "typeVersion": 2
    },
    {
      "id": "299122c1-61d1-4ce4-81b9-ce15d22cd49c",
      "name": "Prep Parts for Translate",
      "type": "n8n-nodes-base.code",
      "position": [
        1400,
        140
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "function splitBySecondNewline(text) {\n  // Find the position of the first newline\n  const firstNewlinePos = text.indexOf('\\n');\n  \n  if (firstNewlinePos === -1) {\n    return { firstPart: text, secondPart: '' }; // No newlines found\n  }\n  \n  // Find the position of the second newline\n  const secondNewlinePos = text.indexOf('\\n', firstNewlinePos + 1);\n  \n  if (secondNewlinePos === -1) {\n    return { firstPart: text, secondPart: '' }; // Only one newline found\n  }\n  \n  // Split the string at the second newline\n  const firstPart = text.substring(0, secondNewlinePos);\n  const secondPart = text.substring(secondNewlinePos + 1);\n  \n  return { firstPart, secondPart };\n}\n\nlet lang = $('Receive SRT File to Translate').first().json['Translate to Language']\n\nreturn {\n  parts: splitBySecondNewline($json.txt),\n  language: lang\n}"
      },
      "typeVersion": 2
    },
    {
      "id": "8a810ef3-febe-42f7-91c9-6c82dddcc93a",
      "name": "Clean Translations & Group Titles",
      "type": "n8n-nodes-base.code",
      "position": [
        300,
        340
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "let translated = $json.translatedText.replaceAll(\"\\\\n\",\"\\n\").replaceAll('&quot;',\"\").replaceAll('&#39;',\"'\");\n\nfunction splitIntoTwoLines(text, maxLength = 40) {\n  // If text already contains a newline or is short enough, return as is\n  if (text.includes('\\n') || text.length <= maxLength) {\n    return text;\n  }\n  \n  // Find the last space before or at the maxLength\n  let splitIndex = text.lastIndexOf(' ', maxLength);\n  \n  // If no space was found (rare case with very long words)\n  if (splitIndex === -1) {\n    splitIndex = maxLength; // Force split at maxLength\n  }\n  \n  // Split the text and join with a newline\n  const firstLine = text.substring(0, splitIndex);\n  const secondLine = text.substring(splitIndex + 1); // +1 to skip the space\n  \n  return firstLine + '\\n' + secondLine;\n}\n\n// Add a new field called 'myNewField' to the JSON of the item\n$input.item.json.complete = `${$('Prep Parts for Translate').item.json.parts.firstPart}\\n` + splitIntoTwoLines(translated)\n\nreturn $input.item;"
      },
      "typeVersion": 2
    },
    {
      "id": "15b2781c-4b6f-43e7-9ca9-6d6114e5fdab",
      "name": "Join completed text with double new line",
      "type": "n8n-nodes-base.code",
      "position": [
        740,
        340
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "let texts = $json.data.map(item=>{\n  return item.complete\n})\n\n\n$input.item.json.complete_text = texts.join('\\n\\n')\n\nreturn $input.item;"
      },
      "typeVersion": 2
    },
    {
      "id": "c43efbb6-3fe8-4aa3-8d65-ed3064bcc948",
      "name": "Respond with file",
      "type": "n8n-nodes-base.form",
      "position": [
        1620,
        340
      ],
      "webhookId": "b783b857-21b3-41a3-85da-2dbf2d85da54",
      "parameters": {
        "options": {},
        "operation": "completion",
        "respondWith": "returnBinary",
        "completionTitle": "Done",
        "inputDataFieldName": "file"
      },
      "typeVersion": 1
    },
    {
      "id": "13103a23-3b1a-46d1-9731-c281ff1cac06",
      "name": "Receive SRT File to Translate",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        300,
        140
      ],
      "webhookId": "8f3c089f-4cbe-4994-9d0e-d86518ef855c",
      "parameters": {
        "options": {
          "appendAttribution": false
        },
        "formTitle": "upload srt",
        "formFields": {
          "values": [
            {
              "fieldType": "dropdown",
              "fieldLabel": "Translate to Language",
              "fieldOptions": {
                "values": [
                  {
                    "option": "EN"
                  },
                  {
                    "option": "JP"
                  }
                ]
              },
              "requiredField": true
            },
            {
              "fieldType": "file",
              "fieldLabel": "Upload SRT file",
              "multipleFiles": false,
              "requiredField": true,
              "acceptFileTypes": ".srt"
            }
          ]
        },
        "responseMode": "lastNode"
      },
      "typeVersion": 2.2
    },
    {
      "id": "7e0f06f4-1e9d-436f-9310-325214e74bb9",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        280,
        -280
      ],
      "parameters": {
        "width": 760,
        "height": 300,
        "content": "## Required Credentials\nhttps://docs.n8n.io/integrations/builtin/credentials/google/\n\n## Selecting Language\nYou can update the form to include your preferred language code (that you are translating to), by updating the dropdown field with a new option. \nOr update the Google Translate node language option back to 'fixed' and select your desired language. This will ignore the form option, but is safe to do."
      },
      "typeVersion": 1
    },
    {
      "id": "29f9621e-3756-48ee-b6f0-e26a9f7aa247",
      "name": "Extract text from Binary File",
      "type": "n8n-nodes-base.extractFromFile",
      "position": [
        740,
        140
      ],
      "parameters": {
        "options": {},
        "operation": "text",
        "binaryPropertyName": "Upload_SRT_file"
      },
      "typeVersion": 1
    },
    {
      "id": "0924754e-6d1f-4d82-bb58-f64ebeac7b05",
      "name": "Expose Binary",
      "type": "n8n-nodes-base.code",
      "position": [
        520,
        140
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "// Add a new field called 'myNewField' to the JSON of the item\n$input.item.json.binary = $binary;\n\nreturn $input.item;"
      },
      "typeVersion": 2
    }
  ],
  "active": true,
  "pinData": {
    "Receive SRT File to Translate": [
      {
        "json": {
          "formMode": "production",
          "submittedAt": "2025-04-20T05:46:13.787-04:00",
          "Upload SRT file": {
            "size": 7748,
            "filename": "example_file.srt",
            "mimetype": "application/octet-stream"
          },
          "Translate to Language": "EN"
        }
      }
    ]
  },
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "824adb39-806e-4d28-8e41-efd9f2e179a8",
  "connections": {
    "Aggregate": {
      "main": [
        [
          {
            "node": "Join completed text with double new line",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Split Out": {
      "main": [
        [
          {
            "node": "Prep Parts for Translate",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Edit Fields": {
      "main": [
        [
          {
            "node": "Generate Binary",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Expose Binary": {
      "main": [
        [
          {
            "node": "Extract text from Binary File",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Convert to File": {
      "main": [
        [
          {
            "node": "Respond with file",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Generate Binary": {
      "main": [
        [
          {
            "node": "Convert to File",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Split SRT Lines": {
      "main": [
        [
          {
            "node": "Split Out",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Google Translate": {
      "main": [
        [
          {
            "node": "Clean Translations & Group Titles",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Prep Parts for Translate": {
      "main": [
        [
          {
            "node": "Google Translate",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Extract text from Binary File": {
      "main": [
        [
          {
            "node": "Split SRT Lines",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Receive SRT File to Translate": {
      "main": [
        [
          {
            "node": "Expose Binary",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Clean Translations & Group Titles": {
      "main": [
        [
          {
            "node": "Aggregate",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Join completed text with double new line": {
      "main": [
        [
          {
            "node": "Edit Fields",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}