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fix(uploads): avoid making redundant memory copies #57

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Merged
merged 1 commit into from
Sep 11, 2024
Merged

fix(uploads): avoid making redundant memory copies #57

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8 changes: 5 additions & 3 deletions src/uploads.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -107,8 +107,10 @@ export async function toFile(
// If it's a promise, resolve it.
value = await value;

// Use the file's options if there isn't one provided
options ??= isFileLike(value) ? { lastModified: value.lastModified, type: value.type } : {};
// If we've been given a `File` we don't need to do anything
if (isFileLike(value)) {
return value;
}

if (isResponseLike(value)) {
const blob = await value.blob();
Expand All @@ -126,7 +128,7 @@ export async function toFile(

name ||= getName(value) ?? 'unknown_file';

if (!options.type) {
if (!options?.type) {
const type = (bits[0] as any)?.type;
if (typeof type === 'string') {
options = { ...options, type };
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8 changes: 8 additions & 0 deletions tests/uploads.test.ts
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Expand Up @@ -54,4 +54,12 @@ describe('toFile', () => {
const file = await toFile(input);
expect(file.name).toEqual('uploads.test.ts');
});

it('does not copy File objects', async () => {
const input = new File(['foo'], 'input.jsonl', { type: 'jsonl' });
const file = await toFile(input);
expect(file).toBe(input);
expect(file.name).toEqual('input.jsonl');
expect(file.type).toBe('jsonl');
});
});