docs: fix regex under the pattern keyword

[Imod7]

Issue

In 6 endpoints there is the following regex 'a-km-zA-HJ-NP-Z1-9{8,64}' under the pattern keyword. The regex intends to validate the user input for:

• the blockId parameter of the block related endpoints and
• the address parameter of the contracts endpoint

However, it is not working as expected hence is not allowing the user to input valid block heights or hashes.

Fix

In the block endpoints where the blockId is either a block height or a block hash, the regex was replaced by the following pattern :

^0[xX][0-9a-fA-F]{1,64}$|[0-9]{1,12}

This pattern should match either :

• a hexadecimal string of total length of 66 digits. The pattern allows a string that starts with 0x or 0X and then its followed by 64 hexadecimal digits (0-9a-fA-F). This could work for the block hash.
• an integer number of length 1 to 12 digits. This could work for the block height.

In the contracts endpoint, the pattern was removed.

Note

The replaced pattern in the blockId captures a lot of wrong inputs. However, it does not work 100% as expected (for example it ignores completely the length limit). I think this is a swagger issue since there are some open issues related to regex patterns not working correctly :

• Object with @Pattern is misinterpreted into 'Try it out' view swagger-api/swagger-ui#8003
• Swagger fails to generate a valid example for complex regex patterns. swagger-api/swagger-ui#8033

[TarikGul]

Great Job. LGTM.

[bee344]

Nicely done