NotEnoughBalanceOrAllowance when place order in fusion mode

[sh7ning]

when I run the example https://github.com/1inch/1inch-sdk-go/blob/main/sdk-clients/fusion/examples/place_order/main.go#L72

I got the err: {"error":"Bad Request","description":"NotEnoughBalanceOrAllowance","statusCode":400,"meta":[]}

How I can approve the transaction using 1inch api, can you give me some advice, like 1inch api doc link or or a complete approve allowance and place order example?

Thanks a lot, I am new to defi.

[Tanz0rz]

Hi, the approval transaction for our router can be created using the aggregation API. Here is an example that checks allowance for a given amount and approves the token if needed: https://github.com/1inch/1inch-sdk-go/blob/ab94614df99977a526bfd7cc58e9dfb31eaa48b4/sdk-clients/aggregation/examples/approve/main.go

I may add this functionality to the Wallet object directly if it makes sense, but for now, just pull in the aggregation API to get this functionality.

[sh7ning]

the aggregation API need NodeUrl, but I don't have a NodeUrl, And if possible, I just want to use the 1inch api or the nodeurl provided by 1inch

The NodeUrl may be multiple different chains currently supported by 1inch API

[Tanz0rz]

NODE_URL is where you put your JSON RPC endpoint. It is the main way to communicate with Ethereum-style blockchains (you can read more about the underlying spec here). For now, just find a free one from this website for the chain you are testing and put it in your environment: www.chainlist.org

[sh7ning]

Ok, thank you very much for your help,It's so kind of you, I will try it according to what you said.