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fix(amazon-bedrock): return request.body from doGenerate and doStream #16969

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fix(amazon-bedrock): return request.body from doGenerate and doStream #16969

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5 changes: 5 additions & 0 deletions .changeset/bedrock-request-body.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"@ai-sdk/amazon-bedrock": patch
---

fix(amazon-bedrock): return `request.body` from `doGenerate` and `doStream`. Previously the Bedrock provider never populated the `request` field, so observability/tracing tools received `undefined` instead of the Converse API request payload.
46 changes: 46 additions & 0 deletions packages/amazon-bedrock/src/__snapshots__/amazon-bedrock-chat-language-model.test.ts.snap
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Expand Up @@ -44,6 +44,29 @@ There are 3 r's.",
},
},
},
"request": {
"body": {
"additionalModelRequestFields": undefined,
"additionalModelResponseFieldPaths": [
"/delta/stop_sequence",
],
"messages": [
{
"content": [
{
"text": "Hello",
},
],
"role": "user",
},
],
"system": [
{
"text": "System Prompt",
},
],
},
},
"response": {
"headers": {
"content-length": "865",
Expand Down Expand Up @@ -107,6 +130,29 @@ There are **3** "r"s in "strawberry."",
},
},
},
"request": {
"body": {
"additionalModelRequestFields": undefined,
"additionalModelResponseFieldPaths": [
"/delta/stop_sequence",
],
"messages": [
{
"content": [
{
"text": "Hello",
},
],
"role": "user",
},
],
"system": [
{
"text": "System Prompt",
},
],
},
},
"response": {
"headers": {
"content-length": "435",
Expand Down
67 changes: 67 additions & 0 deletions packages/amazon-bedrock/src/amazon-bedrock-chat-language-model.test.ts
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Expand Up @@ -1049,6 +1049,43 @@ describe('doStream', () => {
`);
});

it('should return the request body', async () => {
setupMockEventStreamHandler();
server.urls[streamUrl].response = {
type: 'stream-chunks',
chunks: [],
};

const result = await model.doStream({
prompt: TEST_PROMPT,
includeRawChunks: false,
});

expect(result.request?.body).toMatchInlineSnapshot(`
{
"additionalModelRequestFields": undefined,
"additionalModelResponseFieldPaths": [
"/delta/stop_sequence",
],
"messages": [
{
"content": [
{
"text": "Hello",
},
],
"role": "user",
},
],
"system": [
{
"text": "System Prompt",
},
],
}
`);
});

it('should support guardrails', async () => {
setupMockEventStreamHandler();
server.urls[streamUrl].response = {
Expand Down Expand Up @@ -3225,6 +3262,36 @@ describe('doGenerate', () => {
expect(result).toMatchSnapshot();
});

it('should return the request body', async () => {
const result = await model.doGenerate({
prompt: TEST_PROMPT,
});

expect(result.request?.body).toMatchInlineSnapshot(`
{
"additionalModelRequestFields": undefined,
"additionalModelResponseFieldPaths": [
"/delta/stop_sequence",
],
"messages": [
{
"content": [
{
"text": "Hello",
},
],
"role": "user",
},
],
"system": [
{
"text": "System Prompt",
},
],
}
`);
});

it('should extract usage', async () => {
const { usage } = await model.doGenerate({
prompt: TEST_PROMPT,
Expand Down
3 changes: 2 additions & 1 deletion packages/amazon-bedrock/src/amazon-bedrock-chat-language-model.ts
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Expand Up @@ -619,6 +619,7 @@ export class AmazonBedrockChatLanguageModel implements LanguageModelV4 {
raw: response.stopReason ?? undefined,
},
usage: convertAmazonBedrockUsage(response.usage),
request: { body: args },
response: {
id: responseHeaders?.['x-amzn-requestid'] ?? undefined,
timestamp:
Expand Down Expand Up @@ -1043,7 +1044,7 @@ export class AmazonBedrockChatLanguageModel implements LanguageModelV4 {
},
}),
),
// TODO request?
request: { body: args },
response: { headers: responseHeaders },
};
}
Expand Down