improvement(file-block): add get operation (#4588)

* File block get

* Lint

* Fix

apps/sim/app/api/tools/file/manage/route.ts

@@ -8,6 +8,7 @@ import { ensureAbsoluteUrl } from '@/lib/core/utils/urls'
 import { withRouteHandler } from '@/lib/core/utils/with-route-handler'
 import {
   fetchWorkspaceFileBuffer,
+  getWorkspaceFile,
   getWorkspaceFileByName,
   updateWorkspaceFileContent,
   uploadWorkspaceFile,
@@ -40,6 +41,51 @@ export const POST = withRouteHandler(async (request: NextRequest) => {
 
   try {
     switch (body.operation) {
+      case 'get': {
+        const { fileId, fileInput } = body
+        const selectedFileId =
+          fileId ||
+          (fileInput && typeof fileInput === 'object' && !Array.isArray(fileInput)
+            ? typeof fileInput.id === 'string'
+              ? fileInput.id
+              : typeof fileInput.fileId === 'string'
+                ? fileInput.fileId
+                : ''
+            : '')
+
+        if (!selectedFileId) {
+          return NextResponse.json({ success: false, error: 'File is required' }, { status: 400 })
+        }
+
+        const file = await getWorkspaceFile(workspaceId, selectedFileId)
+        if (!file) {
+          return NextResponse.json(
+            { success: false, error: `File not found: "${selectedFileId}"` },
+            { status: 404 }
+          )
+        }
+
+        logger.info('File retrieved', {
+          fileId: file.id,
+          name: file.name,
+        })
+
+        return NextResponse.json({
+          success: true,
+          data: {
+            file: {
+              id: file.id,
+              name: file.name,
+              url: ensureAbsoluteUrl(file.path),
+              size: file.size,
+              type: file.type,
+              key: file.key,
+              context: 'workspace',
+            },
+          },
+        })
+      }
+
       case 'write': {
         const { fileName, content, contentType } = body
         const mimeType = contentType || getMimeTypeFromExtension(getFileExtension(fileName))

apps/sim/blocks/blocks/file.ts

@@ -266,6 +266,7 @@ export const FileV3Block: BlockConfig<FileParserV3Output> = {
       type: 'dropdown' as SubBlockType,
       options: [
         { label: 'Read', id: 'file_parser_v3' },
+        { label: 'Get', id: 'file_get' },
         { label: 'Write', id: 'file_write' },
         { label: 'Append', id: 'file_append' },
       ],
@@ -294,6 +295,28 @@ export const FileV3Block: BlockConfig<FileParserV3Output> = {
       required: { field: 'operation', value: 'file_parser_v3' },
       condition: { field: 'operation', value: 'file_parser_v3' },
     },
+    {
+      id: 'getFile',
+      title: 'File',
+      type: 'file-upload' as SubBlockType,
+      canonicalParamId: 'getFileInput',
+      acceptedTypes: '*',
+      placeholder: 'Select a workspace file',
+      multiple: false,
+      mode: 'basic',
+      condition: { field: 'operation', value: 'file_get' },
+      required: { field: 'operation', value: 'file_get' },
+    },
+    {
+      id: 'getFileId',
+      title: 'File ID',
+      type: 'short-input' as SubBlockType,
+      canonicalParamId: 'getFileInput',
+      placeholder: 'Workspace file ID',
+      mode: 'advanced',
+      condition: { field: 'operation', value: 'file_get' },
+      required: { field: 'operation', value: 'file_get' },
+    },
     {
       id: 'fileName',
       title: 'File Name',
@@ -349,7 +372,7 @@ export const FileV3Block: BlockConfig<FileParserV3Output> = {
     },
   ],
   tools: {
-    access: ['file_parser_v3', 'file_write', 'file_append'],
+    access: ['file_parser_v3', 'file_get', 'file_write', 'file_append'],
     config: {
       tool: (params) => params.operation || 'file_parser_v3',
       params: (params) => {
@@ -390,6 +413,25 @@ export const FileV3Block: BlockConfig<FileParserV3Output> = {
           }
         }
 
+        if (operation === 'file_get') {
+          const getInput = params.getFileInput
+          if (!getInput) {
+            throw new Error('File is required for get')
+          }
+
+          if (typeof getInput === 'string') {
+            return {
+              fileId: getInput.trim(),
+              workspaceId: params._context?.workspaceId,
+            }
+          }
+
+          return {
+            fileInput: normalizeFileInput(getInput, { single: true }),
+            workspaceId: params._context?.workspaceId,
+          }
+        }
+
         const fileInput = params.fileInput
         if (!fileInput) {
           logger.error('No file input provided')
@@ -428,9 +470,13 @@ export const FileV3Block: BlockConfig<FileParserV3Output> = {
     },
   },
   inputs: {
-    operation: { type: 'string', description: 'Operation to perform (read, write, or append)' },
+    operation: {
+      type: 'string',
+      description: 'Operation to perform (read, get, write, or append)',
+    },
     fileInput: { type: 'json', description: 'File input for read' },
     fileType: { type: 'string', description: 'File type for read' },
+    getFileInput: { type: 'json', description: 'Selected file or workspace file ID for get' },
     fileName: { type: 'string', description: 'Name for a new file (write)' },
     content: { type: 'string', description: 'File content to write' },
     contentType: { type: 'string', description: 'MIME content type for write' },
@@ -446,6 +492,10 @@ export const FileV3Block: BlockConfig<FileParserV3Output> = {
       type: 'string',
       description: 'All file contents merged into a single text string (read)',
     },
+    file: {
+      type: 'file',
+      description: 'Workspace file object (get)',
+    },
     id: {
       type: 'string',
       description: 'File ID (write)',

apps/sim/lib/api/contracts/tools/file.ts

@@ -22,9 +22,21 @@ export const fileManageAppendBodySchema = z.object({
   content: z.string({ error: 'content is required for append operation' }),
 })
 
-export const fileManageBodySchema = z.discriminatedUnion('operation', [
+export const fileManageGetBodySchema = z
+  .object({
+    operation: z.literal('get'),
+    workspaceId: z.string().min(1).optional(),
+    fileId: z.string().min(1).optional(),
+    fileInput: z.any().optional(),
+  })
+  .refine((data) => data.fileId !== undefined || data.fileInput !== undefined, {
+    message: 'Either fileId or fileInput is required for get operation',
+  })
+
+export const fileManageBodySchema = z.union([
   fileManageWriteBodySchema,
   fileManageAppendBodySchema,
+  fileManageGetBodySchema,
 ])
 
 export const fileManageContract = defineRouteContract({

apps/sim/tools/file/get.ts

@@ -0,0 +1,54 @@
+import type { ToolConfig, ToolResponse, WorkflowToolExecutionContext } from '@/tools/types'
+
+interface FileGetParams {
+  fileId?: string
+  fileInput?: unknown
+  workspaceId?: string
+  _context?: WorkflowToolExecutionContext
+}
+
+export const fileGetTool: ToolConfig<FileGetParams, ToolResponse> = {
+  id: 'file_get',
+  name: 'File Get',
+  description: 'Get a workspace file object from a selected file or canonical workspace file ID.',
+  version: '1.0.0',
+
+  params: {
+    fileId: {
+      type: 'string',
+      required: false,
+      visibility: 'user-or-llm',
+      description: 'Canonical workspace file ID.',
+    },
+    fileInput: {
+      type: 'file',
+      required: false,
+      visibility: 'user-only',
+      description: 'Selected workspace file object.',
+    },
+  },
+
+  request: {
+    url: '/api/tools/file/manage',
+    method: 'POST',
+    headers: () => ({ 'Content-Type': 'application/json' }),
+    body: (params) => ({
+      operation: 'get',
+      fileId: params.fileId,
+      fileInput: params.fileInput,
+      workspaceId: params.workspaceId || params._context?.workspaceId,
+    }),
+  },
+
+  transformResponse: async (response) => {
+    const data = await response.json()
+    if (!response.ok || !data.success) {
+      return { success: false, output: {}, error: data.error || 'Failed to get file' }
+    }
+    return { success: true, output: data.data }
+  },
+
+  outputs: {
+    file: { type: 'file', description: 'Workspace file object' },
+  },
+}

apps/sim/tools/file/index.ts

@@ -1,6 +1,7 @@
 import { fileParserTool, fileParserV2Tool, fileParserV3Tool } from '@/tools/file/parser'
 
 export { fileAppendTool } from '@/tools/file/append'
+export { fileGetTool } from '@/tools/file/get'
 export { fileWriteTool } from '@/tools/file/write'
 
 export const fileParseTool = fileParserTool

apps/sim/tools/registry.ts

@@ -643,6 +643,7 @@ import {
 } from '@/tools/fathom'
 import {
   fileAppendTool,
+  fileGetTool,
   fileParserV2Tool,
   fileParserV3Tool,
   fileParseTool,
@@ -3213,6 +3214,7 @@ export const tools: Record<string, ToolConfig> = {
   file_parser_v2: fileParserV2Tool,
   file_parser_v3: fileParserV3Tool,
   file_append: fileAppendTool,
+  file_get: fileGetTool,
   file_write: fileWriteTool,
   firecrawl_scrape: firecrawlScrapeTool,
   firecrawl_search: firecrawlSearchTool,