Solana error: Problems with the Array/String series in Anchor
As developer construction applications in Solane, it is necessary to understand and address serialization errors that can occur during interaction. One of the common problems is the series of fields/series of anchor programs, especially when working with “Order” objects.
What causes an error?
In interacting with the “Order” object in Solane, there are two main concerns: serialization fields and strings like bytes. If the “token_ids” field contains a chain, it may lead to serialization errors if they are not treated properly.
token IDS as chains
The token_ids field is usually defined as a bytes field (for example, [U8; 32]). However, this type of data requires additional processing when working with chains. Anchor, when you try to definetoken_idusing a chain, Solan tries to serialize it in the field. Unfortunately, this process can lead to problems.
Mistakes occurrence
The error occurs when theorder structure” served and then served again. Here is what happens:
- The
token_ids' field is transferred to the bytes field.
- When Solan is serialized for bytes (for example, the use of the serialization library), Solan is trying to serialize identification token chains as a series of chains.
- However, as the token ID is not mainly stored as chains, this process fails.
Test Case: Configure token ID as U32
We will test the problem with thetoken_idconfiguration using the U32:
C
Use anchor_lang :: prelude ::*;
Use Solan_SDK :: token :: token;
#[program]
Pub FN Create_order (
Pub int_amount: U64,
Pub token_ids: thing
) -> Result <()> {
Leave the order = Order {
Sum: Init_amount,
// token_ids is not really stored as a chain first ...
Token_id: token_ids,
};
// serialize in bytes
Be serialized_order = serde_json :: to_vec (& order)?;
// RE -Desseerializes and expect a variety of chains
Be it delineated_token_ids = serde_json :: from_sta (& serialized_order) .unwrap ();
Ok ((())
}
The above code fails with an error indicating that the token_id field is not really stored as a current.
Solutions and Solutions
To solve this problem, you can adjust your serialization and deerialization process to deal with chains differently. Here are several possible solutions:
- Save token ID as integers
: If you have
token_ids, it must be an entire range of integers that represent an order token ID, use this format.
- Use your own serialization library : Consider using a separate library, such as
cuboor” serde_json “, which can easily process chain-based data types.
- Implement the logic of your own cerneryization : Write your own code of deseralization for conversion between the expected format (for example, integers) and the real serial format.
Conclusion
Solane serialization errors, especially when series/chain series, can lead to unexpected behavior by interacting with “Order” objects. By understanding the root cause of these problems and implementing solutions or solutions, you can ensure that your apps work smoothly for Solan Blockchain.