Yurii
I have pasted the cURL below I think all the info you need should be in that.
curl "https://api.appery.io/rest/1/proxy/tu..." -H "Host: api.appery.io" -H "User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:34.0) Gecko/20100101 Firefox/34.0" -H "Accept: application/json, text/javascript, /; q=0.01" -H "Accept-Language: en-US,en;q=0.5" --compressed -H "Authorization: Bearer 00Do0000000ZyyJ!AQYAQOOEE4Kgc06rzfz39clRPGDpWUBDTSeSCwznRN72h8twhdSpDL5_lHaj0G1JFTyNwu32Jno7T9lPAqIi_inEL2hE1gEO" -H "appery-proxy-url: https://na17.salesforce.com/services/..." -H "appery-transformation: checkTunnel" -H "appery-key: 1420504568998" -H "appery-rest: ed546ec8-5aa7-4e6d-994a-2497b14ed43d" -H "Referer: http://appery.io/app/view/07f60b88-6c..." -H "Origin: http://appery.io" -H "Connection: keep-alive"
This is my java script on the request: return "SELECT Id, Name, ParentId, Body, Description, OwnerId, ContentType FROM Attachment WHERE ParentId like '%" + value + "%'";
Let me know if you need more info