all repos — litestore @ d031866fcb2675b000a856a3fb022b2e28522ba9

A minimalist nosql document store.

litestore.nim

 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
import 
  lib/x_sqlite3, 
  lib/x_db_sqlite as db, 
  strutils, 
  os,
  oids,
  times,
  json,
  pegs, 
  uri,
  strtabs,
  httpcore,
  cgi,
  base64
import
  lib/types,
  lib/logger,
  lib/utils, 
  lib/core,
  lib/cli,
  lib/server

export
  types,
  server

from asyncdispatch import runForever

{.compile: "vendor/sqlite/libsqlite3.c".}
{.passC: "-DSQLITE_ENABLE_FTS3=1 -DSQLITE_ENABLE_FTS3_PARENTHESIS -DSQLITE_ENABLE_JSON1".}

proc setup*(open = true) =
  if not LS.file.fileExists:
    try:
      LOG.debug("Creating datastore: ", LS.file)
      LS.file.createDatastore()
    except:
      eWarn()
      fail(200, "Unable to create datastore '$1'" % [LS.file])
  if (open):
    try:
      LS.store = LS.file.openDatastore()
      if LS.mount:
        try:
          LS.store.mountDir(LS.directory)
        except:
          eWarn()
          fail(202, "Unable to mount directory '$1'" % [LS.directory])
    except:
      fail(201, "Unable to open datastore '$1'" % [LS.file])

when isMainModule:

  # Manage vacuum operation separately
  if LS.operation == opVacuum:
    setup(false)
    vacuum LS.file
  else:
    # Open Datastore 
    setup(true)

  case LS.operation:
    of opRun:
      LS.serve
      runForever()
    of opImport:
      LS.store.importDir(LS.directory)
    of opExport:
      LS.store.exportDir(LS.directory)
    of opDelete:
      LS.store.deleteDir(LS.directory)
    of opOptimize:
      LS.store.optimize
    else:
      discard

else:

  proc params*(query: string): StringTableRef =
    new(result)
    let pairs = query.split("&")
    for pair in pairs:
      let data = pair.split("=")
      result[data[0]] = data[1]

  proc query*(table: StringTableRef): string = 
    var params = newSeq[string](0)
    for key, value in pairs(table):
      params.add("$1=$2" % @[key, value.encodeUrl])
    return params.join("&")

  proc newLSRequest(meth: HttpMethod, resource, id,  body = "", params = newStringTable(), headers = newHttpHeaders()): LSRequest = 
    result.reqMethod = meth
    result.body = body
    result.headers = headers
    result.url = parseUri("$1://$2:$3/$4/$5?$6" % @["http", "localhost", "9500", resource, id, params.query()])

  # Public API: Low-level

  proc getInfo*(): LSResponse =
    return LS.getInfo()

  proc getRawDocuments*(options = newQueryOptions()): LSResponse =
    return LS.getRawDocuments(options)

  proc getDocument*(id: string, options = newQueryOptions()): LSResponse =
    return LS.getDocument(id, options)

  proc getRawDocument*(id: string, options = newQueryOptions()): LSResponse =
    return LS.getRawDocument(id, options)

  proc deleteDocument*(id: string): LSResponse =
    return LS.deleteDocument(id)

  proc postDocument*(body, ct: string, folder=""): LSResponse =
    return LS.postDocument(body, ct, folder)

  proc putDocument*(id, body, ct: string): LSResponse =
    return LS.putDocument(id, body, ct)

  proc patchDocument*(id, body: string): LSResponse =
    return LS.patchDocument(id, body)

  # Public API: High-level

  proc get*(resource, id: string, params = newStringTable(), headers = newHttpHeaders()): LSResponse =
    return newLSRequest(HttpGet, resource, id, "", params, headers).get(LS, resource, id)

  proc post*(resource, id, body: string, headers = newHttpHeaders()): LSResponse =
    return newLSRequest(HttpPost, resource, id, body, newStringTable(), headers).post(LS, resource, id)

  proc put*(resource, id, body: string, headers = newHttpHeaders()): LSResponse =
    return newLSRequest(HttpPut, resource, id, body, newStringTable(), headers).put(LS, resource, id)

  proc patch*(resource, id, body: string, headers = newHttpHeaders()): LSResponse =
    return newLSRequest(HttpPatch, resource, id, body, newStringTable(), headers).patch(LS, resource, id)

  proc delete*(resource, id: string, headers = newHttpHeaders()): LSResponse =
    return newLSRequest(HttpPatch, resource, id, "", newStringTable(), headers).delete(LS, resource, id)

  proc head*(resource, id: string, headers = newHttpHeaders()): LSResponse =
    return newLSRequest(HttpHead, resource, id, "", newStringTable(), headers).head(LS, resource, id)

  proc options*(resource, id: string, headers = newHttpHeaders()): LSResponse =
    return newLSRequest(HttpOptions, resource, id, "", newStringTable(), headers).options(LS, resource, id)