Feat: Create a new end-point to request a mk-proof by GlobalExitRoot

[joanestebanr]

What does this PR do?

• Add a new end-point to bridge-service to return merkel-proof by GER: merkle-proof-by-ger?net_id=<net>&deposit_cnt=<deposit>&ger=<ger>. ger: is in hexadecimal without prefix '0x'

Errors:

• To be able to calculate it the leaf deposit_cnt must be included. If not it returns an error like:

  {"code":2,"message":"getting the proof failed (ROLLUP), error: height: 31, cur: 0x0000000000000000000000000000000000000000000000000000000000000000, error: parentHash: 0x0000000000000000000000000000000000000000000000000000000000000000, error: not found in the Storage, network: 1","details":[]}

• The GlobalExitRoot must exists and be synced if your will recive an error like:

  {"code":2,"message":"error getting GlobalExitRoot data for GER: 0xbbd4b810135ae3614c73bc646d8c9de1aae480f673a328758bd70d7223b74b6e. Err: not found in the Storage","details":[]}

Example:

http://localhost:8080/merkle-proof-by-ger?net_id=1&deposit_cnt=0&ger=bbd4b810135ae3614c73bc646d8c9de1aae480f673a328758bd70d7223b74b6b

[sonarcloud[bot]]

Quality Gate passed

Issues
43 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
8.6% Duplication on New Code

See analysis details on SonarCloud