Issues with sending requests containing certain characters

[cal-anthropic]

Repro

package main

import (
	"context"
	"os"

	"github.com/anthropics/anthropic-sdk-go"
	"github.com/anthropics/anthropic-sdk-go/option"
)

func main() {
	client := anthropic.NewClient(
		option.WithAPIKey(os.Getenv("ANTHROPIC_API_KEY")),
	)
	message, err := client.Messages.New(context.TODO(), anthropic.MessageNewParams{
		Model:     anthropic.F(anthropic.ModelClaude3_5SonnetLatest),
		MaxTokens: anthropic.F(int64(1024)),
		Messages: anthropic.F([]anthropic.MessageParam{
			anthropic.NewUserMessage(anthropic.NewTextBlock("What is a quaternion?\x1b")),
		}),
	})
	if err != nil {
		panic(err.Error())
	}
	println(message.Content[0].Text)
}

Output:

POST "https://api.anthropic.com/v1/messages": 400 Bad Request {"type":"error","error":{"type":"invalid_request_error","message":"The request body is not valid JSON: invalid escaped character in string: line 1 column 75 (char 74)"}}

[gdsoumya]

+1 having similar issues :

{\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The request body is not valid JSON: invalid escaped character in string: line 1 column 1597 (char 1596)\"}}"

[jacobzim-stl]

Thanks! This is a known issue, we'll be releasing a v2 including a fix for this.

In the meantime, you should be able to bypass this issue via passing json.RawMessage into anthropic.Raw() instead of anthropic.Field() as the parameter.

[glamboyosa]

Thanks! This is a known issue, we'll be releasing a v2 including a fix for this.

In the meantime, you should be able to bypass this issue via passing json.RawMessage into anthropic.Raw() instead of anthropic.Field() as the parameter.

Hey, could you possibly provide a code example or reflect this in the README / docs? For example I tried: anthropic.Raw[]anthropic.MessageParam where messages are of type anthropic.MessageParam and no dice. tried marshalling messages myself no dice.

[glamboyosa]

Thanks! This is a known issue, we'll be releasing a v2 including a fix for this.
In the meantime, you should be able to bypass this issue via passing json.RawMessage into anthropic.Raw() instead of anthropic.Field() as the parameter.

Hey, could you possibly provide a code example or reflect this in the README / docs? For example I tried: anthropic.Raw[]anthropic.MessageParam where messages are of type anthropic.MessageParam and no dice. tried marshalling messages myself no dice.

For anyone who was stuck, here's how I got it to work:

messagesJson, _ := json.Marshal(messages)
message, err := client.Messages.New(context.TODO(), anthropic.MessageNewParams{
		Model:     anthropic.F(anthropic.ModelClaude3_5SonnetLatest),
		MaxTokens: anthropic.F(int64(1024)),
		Messages: anthropic.Raw[[]anthropic.MessageParam](json.RawMessage(messagesJson)),
		}),

In this example, messages is a slice of maps ([]map[string]string) that matches the official documentation, where each map contains "role" and "content" keys.

[zieen]

any progress ?