Adding test case for char encoding and being explicit about utf8 export.

packages/server/src/api/routes/tests/view.spec.js

@@ -347,7 +347,7 @@ describe("/views", () => {
 
     const setupExport = async () => {
       const table = await config.createTable()
-      await config.createRow({ name: "test-name", description: "test-desc" })
+      await config.createRow({ name: "test-name", description: "ùúûü" })
       return table
     }
 
@@ -362,11 +362,11 @@ describe("/views", () => {
       const rows = JSON.parse(res.text)
       expect(rows.length).toBe(1)
       expect(rows[0].name).toBe("test-name")
-      expect(rows[0].description).toBe("test-desc")
+      expect(rows[0].description).toBe("ùúûü")
     }
 
     const assertCSVExport = (res) => {
-      expect(res.text).toBe("\"name\",\"description\"\n\"test-name\",\"test-desc\"")
+      expect(res.text).toBe(`"name","description"\n"test-name","ùúûü"`)
     }
 
     it("should be able to export a table as JSON", async () => {

packages/server/src/utilities/fileSystem/index.ts

@@ -80,14 +80,16 @@ export function loadHandlebarsFile(path: string) {
  * When return a file from the API need to write the file to the system temporarily so we
  * can create a read stream to send.
  * @param {string} contents the contents of the file which is to be returned from the API.
+ * @param {string} encoding the encoding of the file to return (utf8 default)
  * @return {Object} the read stream which can be put into the koa context body.
  */
-export function apiFileReturn(contents: string) {
+export function apiFileReturn(
+  contents: string,
+  encoding: BufferEncoding = "utf8"
+) {
   const path = join(budibaseTempDir(), uuid())
-  fs.writeFileSync(path, "\ufeff" + contents)
-  const readerStream = fs.createReadStream(path)
-  readerStream.setEncoding("binary")
-  return readerStream
+  fs.writeFileSync(path, contents, { encoding })
+  return fs.createReadStream(path, { encoding })
 }
 
 export function streamFile(path: string) {