Fix broken fetch usage for CFW (langchain-ai#3302)

Fixes langchain-ai#3187
malandis · Nov 16, 2023 · 7538d6f · 7538d6f
1 parent b9e9202
commit 7538d6f
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/langchain/src/chat_models/bedrock/web.ts b/langchain/src/chat_models/bedrock/web.ts
@@ -167,7 +167,7 @@ export class BedrockChat extends SimpleChatModel implements BaseBedrockInput {
 
     this.temperature = fields?.temperature ?? this.temperature;
     this.maxTokens = fields?.maxTokens ?? this.maxTokens;
-    this.fetchFn = fields?.fetchFn ?? fetch;
+    this.fetchFn = fields?.fetchFn ?? fetch.bind(globalThis);
     this.endpointHost = fields?.endpointHost ?? fields?.endpointUrl;
     this.stopSequences = fields?.stopSequences;
     this.modelKwargs = fields?.modelKwargs;

diff --git a/langchain/src/llms/bedrock/web.ts b/langchain/src/llms/bedrock/web.ts
@@ -106,7 +106,7 @@ export class Bedrock extends LLM implements BaseBedrockInput {
 
     this.temperature = fields?.temperature ?? this.temperature;
     this.maxTokens = fields?.maxTokens ?? this.maxTokens;
-    this.fetchFn = fields?.fetchFn ?? fetch;
+    this.fetchFn = fields?.fetchFn ?? fetch.bind(globalThis);
     this.endpointHost = fields?.endpointHost ?? fields?.endpointUrl;
     this.stopSequences = fields?.stopSequences;
     this.modelKwargs = fields?.modelKwargs;