I tenei wa, kua waiho te REST API hei paerewa mo te whakawhanaketanga tono tukutuku, ka taea te wehewehe i te whanaketanga ki nga waahanga motuhake. He maha nga anga rongonui penei i te Angular, React, Vue me etahi atu e whakamahia ana mo te UI. Ka taea e nga kaiwhakawhanake backend te whiriwhiri mai i te tini o nga reo me nga anga. I tenei ra e hiahia ana ahau ki te korero mo te anga penei NestJS. Kei roto tatou TestMace He kaha taatau ki te whakamahi mo nga kaupapa o roto. Te whakamahi i te kohanga me te kete @nestjsx/crud, ka hangaia e matou he tono CRUD ngawari.

He aha a NestJS

Ina tata nei, he maha nga anga o muri kua puta mai i te hapori JavaScript. A, ki te mea he rite nga mahi ki a Nest, katahi ka tino wikitoria - koinei te hoahoanga. Ko nga ahuatanga NestJS e whai ake nei ka taea e koe te hanga tono ahumahi me te whakawhanaketanga tauine ki nga roopu nui:

• te whakamahi i te TypeScript hei reo whanaketanga matua. Ahakoa kei te tautoko a NestJS i te JavaScript, kare pea etahi mahi e mahi, ina koa kei te korero tatou mo nga kohinga tuatoru;
• te aroaro o te ipu DI, e taea ai e koe te hanga i nga waahanga honohono;
• Ko te mahinga o te anga ake kua wehea ki nga waahanga whakawhiti motuhake. Hei tauira, i raro i te hood hei anga ka taea te whakamahi hei faaite, a whakatiki, ki te mahi ki te pātengi raraunga, kohanga i waho o te pouaka whakarato here ki patopato, mongoose, whakawhaiaro;
• Ko te NestJS he turanga agnostic me te tautoko i te REST, GraphQL, Websockets, gRPC, etc.

Ko te anga ake he mea whakaawe e te anga angular o mua, a he maha nga mea e pa ana ki a ia.

Tāuta NestJS me te Whakatakoto i te Kaupapa

He mōkihi kei roto i te kohanga kohanga/cli, ka taea e koe te tuku tere i tetahi anga tono taketake. Tāutahia tēnei mōkihi puta noa i te ao:

npm install --global @nest/cli

I muri i te whakaurunga, ka whakaputahia e matou te anga taketake o ta matou tono me te ingoa nest-rest. Ka mahia tenei ma te whakamahi i te whakahau nest new nest-rest.

nest new nest-rest

dmitrii@dmitrii-HP-ZBook-17-G3:~/projects $ nest new nest-rest
  We will scaffold your app in a few seconds..

CREATE /nest-rest/.prettierrc (51 bytes)
CREATE /nest-rest/README.md (3370 bytes)
CREATE /nest-rest/nest-cli.json (84 bytes)
CREATE /nest-rest/nodemon-debug.json (163 bytes)
CREATE /nest-rest/nodemon.json (67 bytes)
CREATE /nest-rest/package.json (1805 bytes)
CREATE /nest-rest/tsconfig.build.json (97 bytes)
CREATE /nest-rest/tsconfig.json (325 bytes)
CREATE /nest-rest/tslint.json (426 bytes)
CREATE /nest-rest/src/app.controller.spec.ts (617 bytes)
CREATE /nest-rest/src/app.controller.ts (274 bytes)
CREATE /nest-rest/src/app.module.ts (249 bytes)
CREATE /nest-rest/src/app.service.ts (142 bytes)
CREATE /nest-rest/src/main.ts (208 bytes)
CREATE /nest-rest/test/app.e2e-spec.ts (561 bytes)
CREATE /nest-rest/test/jest-e2e.json (183 bytes)

? Which package manager would you ️ to use? yarn
 Installation in progress... 

  Successfully created project nest-rest
  Get started with the following commands:

$ cd nest-rest
$ yarn run start

                          Thanks for installing Nest 
                 Please consider donating to our open collective
                        to help us maintain this package.

                 Donate: https://opencollective.com/nest

Ka whiriwhiria e matou he miro hei kaiwhakahaere kete.
I tenei wa ka taea e koe te timata i te tūmau me te whakahau npm start me te haere ki te wahitau http://localhost:3000 ka kite koe i te wharangi matua. Heoi, ehara tenei i te take i hui ai tatou ki konei, kei te anga whakamua.

Te whakarite mahi me te patengi raraunga

I whiriwhiria e ahau te PostrgreSQL hei DBMS mo tenei tuhinga. Kaore he tautohetohe mo nga reka; ki taku whakaaro, koinei te DBMS tino pakeke, kei a ia nga kaha katoa. Ka rite ki te korero i mua ake nei, ka whakarato a Nest i te whakaurunga me nga momo kete hei mahi me nga papaunga raraunga. No te mea I te mea kua taka taku whiringa ki runga i te PostgreSQL, he mea tika ki te whiriwhiri i te TypeORM hei ORM. Me whakauru i nga kohinga e tika ana mo te whakauru ki te papaunga raraunga:

yarn add typeorm @nestjs/typeorm pg

Kia raupapa, he aha te mea e hiahiatia ana mo ia kete:

1. typeorm - he kete mai i te ORM ake;
2. @nestjs/typeorm - Mokihi TypeORM mo NestJS. Ka taapirihia nga waahanga mo te kawemai ki nga waahanga kaupapa, me te huinga o nga kaiawhina whakapaipai;
3. pg - taraiwa mo te mahi me te PostgreSQL.

Kaati, kua whakauruhia nga paanui, inaianei me whakarewa koe i te papaunga raraunga ake. Hei tohatoha i te papaaarangi, ka whakamahi ahau i te docker-compose.yml me nga mea e whai ake nei:

docker-compose.yml

version: '3.1'

services:
  db:
    image: postgres:11.2
    restart: always
    environment:
      POSTGRES_PASSWORD: example
    volumes:
      - ../db:/var/lib/postgresql/data
      - ./postgresql.conf:/etc/postgresql/postgresql.conf
    ports:
      - 5432:5432
  adminer:
    image: adminer
    restart: always
    ports:
      - 8080:8080

Ka kite koe, ka whirihorahia e tenei konae te whakarewatanga o nga ipu e 2:

1. Ko te db he ipu kei roto tonu i te papaunga raraunga. I roto i to maatau, ka whakamahia te putanga postgresql 11.2;
2. kaiwhakahaere—te kaiwhakahaere paparangi. Ka whakarato i te atanga tukutuku mo te tiro me te whakahaere i te papaunga raraunga.

Hei mahi me nga hononga tcp, i taapirihia e ahau te whirihora e whai ake nei.

postgresql.conf

# -----------------------------
# PostgreSQL configuration file
# -----------------------------
#
# This file consists of lines of the form:
#
#   name = value
#
# (The "=" is optional.)  Whitespace may be used.  Comments are introduced with
# "#" anywhere on a line.  The complete list of parameter names and allowed
# values can be found in the PostgreSQL documentation.
#
# The commented-out settings shown in this file represent the default values.
# Re-commenting a setting is NOT sufficient to revert it to the default value;
# you need to reload the server.
#
# This file is read on server startup and when the server receives a SIGHUP
# signal.  If you edit the file on a running system, you have to SIGHUP the
# server for the changes to take effect, run "pg_ctl reload", or execute
# "SELECT pg_reload_conf()".  Some parameters, which are marked below,
# require a server shutdown and restart to take effect.
#
# Any parameter can also be given as a command-line option to the server, e.g.,
# "postgres -c log_connections=on".  Some parameters can be changed at run time
# with the "SET" SQL command.
#
# Memory units:  kB = kilobytes        Time units:  ms  = milliseconds
#                MB = megabytes                     s   = seconds
#                GB = gigabytes                     min = minutes
#                TB = terabytes                     h   = hours
#                                                   d   = days
#------------------------------------------------------------------------------
# FILE LOCATIONS
#------------------------------------------------------------------------------
# The default values of these variables are driven from the -D command-line
# option or PGDATA environment variable, represented here as ConfigDir.
#data_directory = 'ConfigDir'       # use data in another directory
# (change requires restart)
#hba_file = 'ConfigDir/pg_hba.conf' # host-based authentication file
# (change requires restart)
#ident_file = 'ConfigDir/pg_ident.conf' # ident configuration file
# (change requires restart)
# If external_pid_file is not explicitly set, no extra PID file is written.
#external_pid_file = ''         # write an extra PID file
# (change requires restart)
#------------------------------------------------------------------------------
# CONNECTIONS AND AUTHENTICATION
#------------------------------------------------------------------------------
# - Connection Settings -
listen_addresses = '*'
#listen_addresses = 'localhost'     # what IP address(es) to listen on;
# comma-separated list of addresses;
# defaults to 'localhost'; use '*' for all
# (change requires restart)
#port = 5432                # (change requires restart)
#max_connections = 100          # (change requires restart)
#superuser_reserved_connections = 3 # (change requires restart)
#unix_socket_directories = '/tmp'   # comma-separated list of directories
# (change requires restart)
#unix_socket_group = ''         # (change requires restart)
#unix_socket_permissions = 0777     # begin with 0 to use octal notation
# (change requires restart)
#bonjour = off              # advertise server via Bonjour
# (change requires restart)
#bonjour_name = ''          # defaults to the computer name
# (change requires restart)
# - TCP Keepalives -
# see "man 7 tcp" for details
#tcp_keepalives_idle = 0        # TCP_KEEPIDLE, in seconds;
# 0 selects the system default
#tcp_keepalives_interval = 0        # TCP_KEEPINTVL, in seconds;
# 0 selects the system default
#tcp_keepalives_count = 0       # TCP_KEEPCNT;
# 0 selects the system default
# - Authentication -
#authentication_timeout = 1min      # 1s-600s
#password_encryption = md5      # md5 or scram-sha-256
#db_user_namespace = off
# GSSAPI using Kerberos
#krb_server_keyfile = ''
#krb_caseins_users = off
# - SSL -
#ssl = off
#ssl_ca_file = ''
#ssl_cert_file = 'server.crt'
#ssl_crl_file = ''
#ssl_key_file = 'server.key'
#ssl_ciphers = 'HIGH:MEDIUM:+3DES:!aNULL' # allowed SSL ciphers
#ssl_prefer_server_ciphers = on
#ssl_ecdh_curve = 'prime256v1'
#ssl_min_protocol_version = 'TLSv1'
#ssl_max_protocol_version = ''
#ssl_dh_params_file = ''
#ssl_passphrase_command = ''
#ssl_passphrase_command_supports_reload = off
#------------------------------------------------------------------------------
# RESOURCE USAGE (except WAL)
#------------------------------------------------------------------------------
# - Memory -
#shared_buffers = 32MB          # min 128kB
# (change requires restart)
#huge_pages = try           # on, off, or try
# (change requires restart)
#temp_buffers = 8MB         # min 800kB
#max_prepared_transactions = 0      # zero disables the feature
# (change requires restart)
# Caution: it is not advisable to set max_prepared_transactions nonzero unless
# you actively intend to use prepared transactions.
#work_mem = 4MB             # min 64kB
#maintenance_work_mem = 64MB        # min 1MB
#autovacuum_work_mem = -1       # min 1MB, or -1 to use maintenance_work_mem
#max_stack_depth = 2MB          # min 100kB
#shared_memory_type = mmap      # the default is the first option
# supported by the operating system:
#   mmap
#   sysv
#   windows
# (change requires restart)
#dynamic_shared_memory_type = posix # the default is the first option
# supported by the operating system:
#   posix
#   sysv
#   windows
#   mmap
# (change requires restart)
# - Disk -
#temp_file_limit = -1           # limits per-process temp file space
# in kB, or -1 for no limit
# - Kernel Resources -
#max_files_per_process = 1000       # min 25
# (change requires restart)
# - Cost-Based Vacuum Delay -
#vacuum_cost_delay = 0          # 0-100 milliseconds (0 disables)
#vacuum_cost_page_hit = 1       # 0-10000 credits
#vacuum_cost_page_miss = 10     # 0-10000 credits
#vacuum_cost_page_dirty = 20        # 0-10000 credits
#vacuum_cost_limit = 200        # 1-10000 credits
# - Background Writer -
#bgwriter_delay = 200ms         # 10-10000ms between rounds
#bgwriter_lru_maxpages = 100        # max buffers written/round, 0 disables
#bgwriter_lru_multiplier = 2.0      # 0-10.0 multiplier on buffers scanned/round
#bgwriter_flush_after = 0       # measured in pages, 0 disables
# - Asynchronous Behavior -
#effective_io_concurrency = 1       # 1-1000; 0 disables prefetching
#max_worker_processes = 8       # (change requires restart)
#max_parallel_maintenance_workers = 2   # taken from max_parallel_workers
#max_parallel_workers_per_gather = 2    # taken from max_parallel_workers
#parallel_leader_participation = on
#max_parallel_workers = 8       # maximum number of max_worker_processes that
# can be used in parallel operations
#old_snapshot_threshold = -1        # 1min-60d; -1 disables; 0 is immediate
# (change requires restart)
#backend_flush_after = 0        # measured in pages, 0 disables
#------------------------------------------------------------------------------
# WRITE-AHEAD LOG
#------------------------------------------------------------------------------
# - Settings -
#wal_level = replica            # minimal, replica, or logical
# (change requires restart)
#fsync = on             # flush data to disk for crash safety
# (turning this off can cause
# unrecoverable data corruption)
#synchronous_commit = on        # synchronization level;
# off, local, remote_write, remote_apply, or on
#wal_sync_method = fsync        # the default is the first option
# supported by the operating system:
#   open_datasync
#   fdatasync (default on Linux)
#   fsync
#   fsync_writethrough
#   open_sync
#full_page_writes = on          # recover from partial page writes
#wal_compression = off          # enable compression of full-page writes
#wal_log_hints = off            # also do full page writes of non-critical updates
# (change requires restart)
#wal_buffers = -1           # min 32kB, -1 sets based on shared_buffers
# (change requires restart)
#wal_writer_delay = 200ms       # 1-10000 milliseconds
#wal_writer_flush_after = 1MB       # measured in pages, 0 disables
#commit_delay = 0           # range 0-100000, in microseconds
#commit_siblings = 5            # range 1-1000
# - Checkpoints -
#checkpoint_timeout = 5min      # range 30s-1d
#max_wal_size = 1GB
#min_wal_size = 80MB
#checkpoint_completion_target = 0.5 # checkpoint target duration, 0.0 - 1.0
#checkpoint_flush_after = 0     # measured in pages, 0 disables
#checkpoint_warning = 30s       # 0 disables
# - Archiving -
#archive_mode = off     # enables archiving; off, on, or always
# (change requires restart)
#archive_command = ''       # command to use to archive a logfile segment
# placeholders: %p = path of file to archive
#               %f = file name only
# e.g. 'test ! -f /mnt/server/archivedir/%f && cp %p /mnt/server/archivedir/%f'
#archive_timeout = 0        # force a logfile segment switch after this
# number of seconds; 0 disables
# - Archive Recovery -
# These are only used in recovery mode.
#restore_command = ''       # command to use to restore an archived logfile segment
# placeholders: %p = path of file to restore
#               %f = file name only
# e.g. 'cp /mnt/server/archivedir/%f %p'
# (change requires restart)
#archive_cleanup_command = ''   # command to execute at every restartpoint
#recovery_end_command = ''  # command to execute at completion of recovery
# - Recovery Target -
# Set these only when performing a targeted recovery.
#recovery_target = ''       # 'immediate' to end recovery as soon as a
# consistent state is reached
# (change requires restart)
#recovery_target_name = ''  # the named restore point to which recovery will proceed
# (change requires restart)
#recovery_target_time = ''  # the time stamp up to which recovery will proceed
# (change requires restart)
#recovery_target_xid = ''   # the transaction ID up to which recovery will proceed
# (change requires restart)
#recovery_target_lsn = ''   # the WAL LSN up to which recovery will proceed
# (change requires restart)
#recovery_target_inclusive = on # Specifies whether to stop:
# just after the specified recovery target (on)
# just before the recovery target (off)
# (change requires restart)
#recovery_target_timeline = 'latest'    # 'current', 'latest', or timeline ID
# (change requires restart)
#recovery_target_action = 'pause'   # 'pause', 'promote', 'shutdown'
# (change requires restart)
#------------------------------------------------------------------------------
# REPLICATION
#------------------------------------------------------------------------------
# - Sending Servers -
# Set these on the master and on any standby that will send replication data.
#max_wal_senders = 10       # max number of walsender processes
# (change requires restart)
#wal_keep_segments = 0      # in logfile segments; 0 disables
#wal_sender_timeout = 60s   # in milliseconds; 0 disables
#max_replication_slots = 10 # max number of replication slots
# (change requires restart)
#track_commit_timestamp = off   # collect timestamp of transaction commit
# (change requires restart)
# - Master Server -
# These settings are ignored on a standby server.
#synchronous_standby_names = '' # standby servers that provide sync rep
# method to choose sync standbys, number of sync standbys,
# and comma-separated list of application_name
# from standby(s); '*' = all
#vacuum_defer_cleanup_age = 0   # number of xacts by which cleanup is delayed
# - Standby Servers -
# These settings are ignored on a master server.
#primary_conninfo = ''          # connection string to sending server
# (change requires restart)
#primary_slot_name = ''         # replication slot on sending server
# (change requires restart)
#promote_trigger_file = ''      # file name whose presence ends recovery
#hot_standby = on           # "off" disallows queries during recovery
# (change requires restart)
#max_standby_archive_delay = 30s    # max delay before canceling queries
# when reading WAL from archive;
# -1 allows indefinite delay
#max_standby_streaming_delay = 30s  # max delay before canceling queries
# when reading streaming WAL;
# -1 allows indefinite delay
#wal_receiver_status_interval = 10s # send replies at least this often
# 0 disables
#hot_standby_feedback = off     # send info from standby to prevent
# query conflicts
#wal_receiver_timeout = 60s     # time that receiver waits for
# communication from master
# in milliseconds; 0 disables
#wal_retrieve_retry_interval = 5s   # time to wait before retrying to
# retrieve WAL after a failed attempt
#recovery_min_apply_delay = 0       # minimum delay for applying changes during recovery
# - Subscribers -
# These settings are ignored on a publisher.
#max_logical_replication_workers = 4    # taken from max_worker_processes
# (change requires restart)
#max_sync_workers_per_subscription = 2  # taken from max_logical_replication_workers
#------------------------------------------------------------------------------
# QUERY TUNING
#------------------------------------------------------------------------------
# - Planner Method Configuration -
#enable_bitmapscan = on
#enable_hashagg = on
#enable_hashjoin = on
#enable_indexscan = on
#enable_indexonlyscan = on
#enable_material = on
#enable_mergejoin = on
#enable_nestloop = on
#enable_parallel_append = on
#enable_seqscan = on
#enable_sort = on
#enable_tidscan = on
#enable_partitionwise_join = off
#enable_partitionwise_aggregate = off
#enable_parallel_hash = on
#enable_partition_pruning = on
# - Planner Cost Constants -
#seq_page_cost = 1.0            # measured on an arbitrary scale
#random_page_cost = 4.0         # same scale as above
#cpu_tuple_cost = 0.01          # same scale as above
#cpu_index_tuple_cost = 0.005       # same scale as above
#cpu_operator_cost = 0.0025     # same scale as above
#parallel_tuple_cost = 0.1      # same scale as above
#parallel_setup_cost = 1000.0   # same scale as above
#jit_above_cost = 100000        # perform JIT compilation if available
# and query more expensive than this;
# -1 disables
#jit_inline_above_cost = 500000     # inline small functions if query is
# more expensive than this; -1 disables
#jit_optimize_above_cost = 500000   # use expensive JIT optimizations if
# query is more expensive than this;
# -1 disables
#min_parallel_table_scan_size = 8MB
#min_parallel_index_scan_size = 512kB
#effective_cache_size = 4GB
# - Genetic Query Optimizer -
#geqo = on
#geqo_threshold = 12
#geqo_effort = 5            # range 1-10
#geqo_pool_size = 0         # selects default based on effort
#geqo_generations = 0           # selects default based on effort
#geqo_selection_bias = 2.0      # range 1.5-2.0
#geqo_seed = 0.0            # range 0.0-1.0
# - Other Planner Options -
#default_statistics_target = 100    # range 1-10000
#constraint_exclusion = partition   # on, off, or partition
#cursor_tuple_fraction = 0.1        # range 0.0-1.0
#from_collapse_limit = 8
#join_collapse_limit = 8        # 1 disables collapsing of explicit
# JOIN clauses
#force_parallel_mode = off
#jit = on               # allow JIT compilation
#plan_cache_mode = auto         # auto, force_generic_plan or
# force_custom_plan
#------------------------------------------------------------------------------
# REPORTING AND LOGGING
#------------------------------------------------------------------------------
# - Where to Log -
#log_destination = 'stderr'     # Valid values are combinations of
# stderr, csvlog, syslog, and eventlog,
# depending on platform.  csvlog
# requires logging_collector to be on.
# This is used when logging to stderr:
#logging_collector = off        # Enable capturing of stderr and csvlog
# into log files. Required to be on for
# csvlogs.
# (change requires restart)
# These are only used if logging_collector is on:
#log_directory = 'log'          # directory where log files are written,
# can be absolute or relative to PGDATA
#log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log'    # log file name pattern,
# can include strftime() escapes
#log_file_mode = 0600           # creation mode for log files,
# begin with 0 to use octal notation
#log_truncate_on_rotation = off     # If on, an existing log file with the
# same name as the new log file will be
# truncated rather than appended to.
# But such truncation only occurs on
# time-driven rotation, not on restarts
# or size-driven rotation.  Default is
# off, meaning append to existing files
# in all cases.
#log_rotation_age = 1d          # Automatic rotation of logfiles will
# happen after that time.  0 disables.
#log_rotation_size = 10MB       # Automatic rotation of logfiles will
# happen after that much log output.
# 0 disables.
# These are relevant when logging to syslog:
#syslog_facility = 'LOCAL0'
#syslog_ident = 'postgres'
#syslog_sequence_numbers = on
#syslog_split_messages = on
# This is only relevant when logging to eventlog (win32):
# (change requires restart)
#event_source = 'PostgreSQL'
# - When to Log -
#log_min_messages = warning     # values in order of decreasing detail:
#   debug5
#   debug4
#   debug3
#   debug2
#   debug1
#   info
#   notice
#   warning
#   error
#   log
#   fatal
#   panic
#log_min_error_statement = error    # values in order of decreasing detail:
#   debug5
#   debug4
#   debug3
#   debug2
#   debug1
#   info
#   notice
#   warning
#   error
#   log
#   fatal
#   panic (effectively off)
#log_min_duration_statement = -1    # logs statements and their durations
# according to log_statement_sample_rate. -1 is disabled,
# 0 logs all statement, > 0 logs only statements running at
# least this number of milliseconds.
#log_statement_sample_rate = 1  # Fraction of logged statements over
# log_min_duration_statement. 1.0 logs all statements,
# 0 never logs.
# - What to Log -
#debug_print_parse = off
#debug_print_rewritten = off
#debug_print_plan = off
#debug_pretty_print = on
#log_checkpoints = off
#log_connections = off
#log_disconnections = off
#log_duration = off
#log_error_verbosity = default      # terse, default, or verbose messages
#log_hostname = off
#log_line_prefix = '%m [%p] '       # special values:
#   %a = application name
#   %u = user name
#   %d = database name
#   %r = remote host and port
#   %h = remote host
#   %p = process ID
#   %t = timestamp without milliseconds
#   %m = timestamp with milliseconds
#   %n = timestamp with milliseconds (as a Unix epoch)
#   %i = command tag
#   %e = SQL state
#   %c = session ID
#   %l = session line number
#   %s = session start timestamp
#   %v = virtual transaction ID
#   %x = transaction ID (0 if none)
#   %q = stop here in non-session
#        processes
#   %% = '%'
# e.g. '<%u%%%d> '
#log_lock_waits = off           # log lock waits >= deadlock_timeout
#log_statement = 'none'         # none, ddl, mod, all
#log_replication_commands = off
#log_temp_files = -1            # log temporary files equal or larger
# than the specified size in kilobytes;
# -1 disables, 0 logs all temp files
#log_timezone = 'GMT'
#------------------------------------------------------------------------------
# PROCESS TITLE
#------------------------------------------------------------------------------
#cluster_name = ''          # added to process titles if nonempty
# (change requires restart)
#update_process_title = on
#------------------------------------------------------------------------------
# STATISTICS
#------------------------------------------------------------------------------
# - Query and Index Statistics Collector -
#track_activities = on
#track_counts = on
#track_io_timing = off
#track_functions = none         # none, pl, all
#track_activity_query_size = 1024   # (change requires restart)
#stats_temp_directory = 'pg_stat_tmp'
# - Monitoring -
#log_parser_stats = off
#log_planner_stats = off
#log_executor_stats = off
#log_statement_stats = off
#------------------------------------------------------------------------------
# AUTOVACUUM
#------------------------------------------------------------------------------
#autovacuum = on            # Enable autovacuum subprocess?  'on'
# requires track_counts to also be on.
#log_autovacuum_min_duration = -1   # -1 disables, 0 logs all actions and
# their durations, > 0 logs only
# actions running at least this number
# of milliseconds.
#autovacuum_max_workers = 3     # max number of autovacuum subprocesses
# (change requires restart)
#autovacuum_naptime = 1min      # time between autovacuum runs
#autovacuum_vacuum_threshold = 50   # min number of row updates before
# vacuum
#autovacuum_analyze_threshold = 50  # min number of row updates before
# analyze
#autovacuum_vacuum_scale_factor = 0.2   # fraction of table size before vacuum
#autovacuum_analyze_scale_factor = 0.1  # fraction of table size before analyze
#autovacuum_freeze_max_age = 200000000  # maximum XID age before forced vacuum
# (change requires restart)
#autovacuum_multixact_freeze_max_age = 400000000    # maximum multixact age
# before forced vacuum
# (change requires restart)
#autovacuum_vacuum_cost_delay = 2ms # default vacuum cost delay for
# autovacuum, in milliseconds;
# -1 means use vacuum_cost_delay
#autovacuum_vacuum_cost_limit = -1  # default vacuum cost limit for
# autovacuum, -1 means use
# vacuum_cost_limit
#------------------------------------------------------------------------------
# CLIENT CONNECTION DEFAULTS
#------------------------------------------------------------------------------
# - Statement Behavior -
#client_min_messages = notice       # values in order of decreasing detail:
#   debug5
#   debug4
#   debug3
#   debug2
#   debug1
#   log
#   notice
#   warning
#   error
#search_path = '"$user", public'    # schema names
#row_security = on
#default_tablespace = ''        # a tablespace name, '' uses the default
#temp_tablespaces = ''          # a list of tablespace names, '' uses
# only default tablespace
#check_function_bodies = on
#default_transaction_isolation = 'read committed'
#default_transaction_read_only = off
#default_transaction_deferrable = off
#session_replication_role = 'origin'
#statement_timeout = 0          # in milliseconds, 0 is disabled
#lock_timeout = 0           # in milliseconds, 0 is disabled
#idle_in_transaction_session_timeout = 0    # in milliseconds, 0 is disabled
#vacuum_freeze_min_age = 50000000
#vacuum_freeze_table_age = 150000000
#vacuum_multixact_freeze_min_age = 5000000
#vacuum_multixact_freeze_table_age = 150000000
#vacuum_cleanup_index_scale_factor = 0.1    # fraction of total number of tuples
# before index cleanup, 0 always performs
# index cleanup
#bytea_output = 'hex'           # hex, escape
#xmlbinary = 'base64'
#xmloption = 'content'
#gin_fuzzy_search_limit = 0
#gin_pending_list_limit = 4MB
# - Locale and Formatting -
#datestyle = 'iso, mdy'
#intervalstyle = 'postgres'
#timezone = 'GMT'
#timezone_abbreviations = 'Default'     # Select the set of available time zone
# abbreviations.  Currently, there are
#   Default
#   Australia (historical usage)
#   India
# You can create your own file in
# share/timezonesets/.
#extra_float_digits = 1         # min -15, max 3; any value >0 actually
# selects precise output mode
#client_encoding = sql_ascii        # actually, defaults to database
# encoding
# These settings are initialized by initdb, but they can be changed.
#lc_messages = 'C'          # locale for system error message
# strings
#lc_monetary = 'C'          # locale for monetary formatting
#lc_numeric = 'C'           # locale for number formatting
#lc_time = 'C'              # locale for time formatting
# default configuration for text search
#default_text_search_config = 'pg_catalog.simple'
# - Shared Library Preloading -
#shared_preload_libraries = ''  # (change requires restart)
#local_preload_libraries = ''
#session_preload_libraries = ''
#jit_provider = 'llvmjit'       # JIT library to use
# - Other Defaults -
#dynamic_library_path = '$libdir'
#------------------------------------------------------------------------------
# LOCK MANAGEMENT
#------------------------------------------------------------------------------
#deadlock_timeout = 1s
#max_locks_per_transaction = 64     # min 10
# (change requires restart)
#max_pred_locks_per_transaction = 64    # min 10
# (change requires restart)
#max_pred_locks_per_relation = -2   # negative values mean
# (max_pred_locks_per_transaction
#  / -max_pred_locks_per_relation) - 1
#max_pred_locks_per_page = 2            # min 0
#------------------------------------------------------------------------------
# VERSION AND PLATFORM COMPATIBILITY
#------------------------------------------------------------------------------
# - Previous PostgreSQL Versions -
#array_nulls = on
#backslash_quote = safe_encoding    # on, off, or safe_encoding
#escape_string_warning = on
#lo_compat_privileges = off
#operator_precedence_warning = off
#quote_all_identifiers = off
#standard_conforming_strings = on
#synchronize_seqscans = on
# - Other Platforms and Clients -
#transform_null_equals = off
#------------------------------------------------------------------------------
# ERROR HANDLING
#------------------------------------------------------------------------------
#exit_on_error = off            # terminate session on any error?
#restart_after_crash = on       # reinitialize after backend crash?
#data_sync_retry = off          # retry or panic on failure to fsync
# data?
# (change requires restart)
#------------------------------------------------------------------------------
# CONFIG FILE INCLUDES
#------------------------------------------------------------------------------
# These options allow settings to be loaded from files other than the
# default postgresql.conf.
#include_dir = 'conf.d'         # include files ending in '.conf' from
# directory 'conf.d'
#include_if_exists = 'exists.conf'  # include file only if it exists
#include = 'special.conf'       # include file
#------------------------------------------------------------------------------
# CUSTOMIZED OPTIONS
#------------------------------------------------------------------------------
# Add settings for extensions here

Heoi ano, ka taea e koe te timata ipu me te whakahau docker-compose up -d. I roto ranei i te papatohu motuhake me te whakahau docker-compose up.

Na, kua whakauruhia nga kete, kua whakarewahia te paataka, ko te mea e toe ana ko te whakahoa ki a raua ano. Hei mahi i tenei, me whakauru e koe te konae e whai ake nei ki te pakiaka kaupapa: ormconfig.js:

ormconfig.js

const process = require('process');
const username = process.env.POSTGRES_USER || "postgres";
const password = process.env.POSTGRES_PASSWORD || "example";
module.exports = {
"type": "postgres",
"host": "localhost",
"port": 5432,
username,
password,
"database": "postgres",
"synchronize": true,
"dropSchema": false,
"logging": true,
"entities": [__dirname + "/src/**/*.entity.ts", __dirname + "/dist/**/*.entity.js"],
"migrations": ["migrations/**/*.ts"],
"subscribers": ["subscriber/**/*.ts", "dist/subscriber/**/.js"],
"cli": {
"entitiesDir": "src",
"migrationsDir": "migrations",
"subscribersDir": "subscriber"
}
}

Ka whakamahia tenei whirihoranga mo cli typeorm.

Kia ata tirohia tenei whirihoranga. I nga rarangi 3 me te 4 ka whiwhi tatou i te ingoa kaiwhakamahi me te kupuhipa mai i nga taurangi taiao. He watea tenei ina he maha nga taiao (dev, stage, prod, etc). Ma te taunoa, ko te ingoa kaiwhakamahi he postgres me te kupuhipa he tauira. Ko te toenga o te whirihora he mea iti, no reira ka aro noa tatou ki nga tawhā tino pai:

• tukutahi - Ka tohu mehemea me hanga aunoa te aronuinga pātengi raraunga ina timata te tono. Kia tupato ki tenei whiringa, kaua hoki e whakamahi i roto i te whakaputanga, mena ka ngaro koe i nga raraunga. He watea tenei whiringa i te wa e whakawhanake ana me te patuiro i tetahi tono. Hei rereke ki tenei whiringa, ka taea e koe te whakamahi i te whakahau schema:sync mai i te CLI TypeORM.
• dropSchema - tautuhi ano i te aronuinga i nga wa katoa ka whakatuu hononga. Ka rite ki te mea o mua, me whakamahi noa tenei whiringa i te wa o te whanaketanga me te patuiro o te tono.
• hinonga - ko nga huarahi hei rapu whakaahuatanga o nga tauira. Kia mahara kei te tautokohia te rapu ma te kanohi kanohi.
• cli.entitiesDir ko te whaiaronga e tika ana kia penapena taunoa nga tauira i hangaia mai i te TypeORM CLI.

Kia taea ai e matou te whakamahi i nga ahuatanga katoa o TypeORM i roto i ta maatau tono Nest, me kawemai te waahanga. TypeOrmModule в AppModule. Ko era. tou AppModule ka penei te ahua:

app.module.ts

import { Module } from '@nestjs/common';
import { AppController } from './app.controller';
import { AppService } from './app.service';
import { TypeOrmModule } from '@nestjs/typeorm';
import * as process from "process";
const username = process.env.POSTGRES_USER || 'postgres';
const password = process.env.POSTGRES_PASSWORD || 'example';
@Module({
imports: [
TypeOrmModule.forRoot({
type: 'postgres',
host: 'localhost',
port: 5432,
username,
password,
database: 'postgres',
entities: [__dirname + '/**/*.entity{.ts,.js}'],
synchronize: true,
}),
],
controllers: [AppController],
providers: [AppService],
})
export class AppModule {}

I kite pea koe, ko te tikanga forRoot ko te whirihoranga ano mo te mahi me te paataka ka whakawhitia pera i te konae ormconfig.ts

Ka noho tonu te pa whakamutunga - taapirihia nga mahi maha mo te mahi me TypeORM i package.json. Ko te mea ko te CLI kua tuhia ki te javascript me te rere i roto i te taiao nodejs. Heoi, ka tuhia katoatia a maatau tauira me nga hekenga ki te momotuhi. Na reira, he mea tika ki te whakawhiti i o maatau heke me o maatau tauira i mua i te whakamahi i te CLI. Mo tenei ka hiahia tatou ki te kete ts-node:

yarn add -D ts-node

Whai muri i tera, taapirihia nga whakahau e tika ana ki te package.json:

"typeorm": "ts-node -r tsconfig-paths/register ./node_modules/typeorm/cli.js",
"migration:generate": "yarn run typeorm migration:generate -n",
"migration:create": "yarn run typeorm migration:create -n",
"migration:run": "yarn run typeorm migration:run"

Ko te whakahau tuatahi, typeorm, he taapiri i te takai ts-node hei whakahaere i te TypeORM cli. Ko nga toenga o nga whakahau he pokatata watea ka whakamahia e koe, hei kaiwhakawhanake, tata ia ra:
migration:generate — te hanga hekenga i runga i nga huringa o o tauira.
migration:create — hanga he heke kau.
migration:run — te whakarewa i nga heke.
Ana, koinei inaianei, kua taapirihia e matou nga kohinga e tika ana, kua whirihorahia te tono kia mahi tahi me te papaaarangi mai i te cli me te tono ano, me te whakarewa ano i te DBMS. Kua tae ki te waa ki te taapiri i te arorau ki ta maatau tono.

Tāuta pōkai mō te hanga CRUD

Ma te whakamahi i te Kohanga anake, ka taea e koe te hanga API ka taea e koe te hanga, te panui, te whakahou me te muku i tetahi hinonga. Ko tenei otinga ka ngawari, engari i etahi wa ka nui haere. Hei tauira, ki te hiahia koe ki te hanga tere i tetahi tauira, ka taea e koe te tuku ngawari mo te tere o te whanaketanga. He maha nga anga e whakarato taumahinga mo te whakaputa CRUD ma te whakaahua i te tauira raraunga o tetahi hinonga. A ko Nest ehara i te mea rereke! Ka whakaratohia tenei mahinga e te kete @nestjsx/crud. He tino whakamere ona kaha:

• ngawari te whakauru me te whirihoranga;
• DBMS motuhake;
• te reo patai kaha me te kaha ki te tātari, ki te wharangi, ki te whakariterite, ki te uta i nga hononga me nga hinonga kohanga, te keteroki, me etahi atu;
• mōkihi mō te whakaputa tono i te pito-mua;
• ngawari te whakakore i nga tikanga whakahaere;
• whirihora iti;
• tautoko tuhinga swagger.

Kua wehea te mahi ki etahi momo kete:

• @nestjsx/crud - te kete taketake e whakaratohia ana e te kaiwhakaahua Crud() mo te hanga huarahi, whirihoranga me te whakamana;
• @nestjsx/crud-tono — he kete e whakarato ana i te kaihanga patai/parapara hei whakamahi i te taha o mua;
• @nestjsx/crud-typeorm — he kete mo te whakauru ki te TypeORM, e whakarato ana i te ratonga TypeOrmCrudService taketake me nga tikanga CRUD mo te mahi tahi me nga hinonga kei roto i te paataka raraunga.

I roto i tenei akoranga ka hiahia matou ki nga kohinga kohangajsx/crud me kohangajsx/crud-typeorm. Tuatahi, me whakatakoto e tatou

yarn add @nestjsx/crud class-transformer class-validator

Pōkai karaehe-transformer и karaehe-whakamana i roto i tenei tono e hiahiatia ana mo te whakamaarama korero mo nga ture mo te whakarereke i nga tauira tauira me te whakamana i nga tono taumai. No te kaituhi kotahi enei kohinga, no reira he rite nga hononga.

Te whakatinanatanga tika o CRUD

Ka tangohia e matou he rarangi o nga kaiwhakamahi hei tauira tauira. Ka whiwhi nga kaiwhakamahi i nga mara e whai ake nei: id, username, displayName, email. id - mara piki-aunoa, email и username - mara ahurei. He ngawari noa! Ko nga mea e toe ana ko te whakatinana i o maatau whakaaro i roto i te ahua o te tono Nest.
Tuatahi me hanga e koe he kōwae users, ko wai te kawenga mo te mahi tahi me nga kaiwhakamahi. Me whakamahi te cli mai i a NestJS ka mahia te whakahau i roto i te raarangi pakiaka o ta maatau kaupapa nest g module users.

kohanga g kaiwhakamahi kōwae

dmitrii@dmitrii-HP-ZBook-17-G3:~/projects/nest-rest git:(master*)$ nest g module users
CREATE /src/users/users.module.ts (82 bytes)
UPDATE /src/app.module.ts (312 bytes)

I tenei kōwae ka tāpirihia he kōpaki hinonga, kei reira ngā tauira o tēnei kōwae. Ina koa, me tapiri ki konei te konae user.entity.ts me te whakaahuatanga o te tauira kaiwhakamahi:

user.entity.ts

import { Column, Entity, PrimaryGeneratedColumn } from 'typeorm';
@Entity()
export class User {
@PrimaryGeneratedColumn()
id: string;
@Column({unique: true})
email: string;
@Column({unique: true})
username: string;
@Column({nullable: true})
displayName: string;
}

Kia "kitea" tenei tauira e to maatau tono, he mea tika i roto i te waahanga UsersModule kawemai TypeOrmModule te ihirangi e whai ake nei:

users.module.ts

import { Module } from '@nestjs/common';
import { UsersController } from './controllers/users/users.controller';
import { UsersService } from './services/users/users.service';
import { TypeOrmModule } from '@nestjs/typeorm';
import { User } from './entities/user.entity';
@Module({
controllers: [UsersController],
providers: [UsersService],
imports: [
TypeOrmModule.forFeature([User])
]
})
export class UsersModule {}

Arā, i konei ka kawemai TypeOrmModule, kei hea hei tawhā tikanga forFeature Ka tohuhia he rarangi tauira e pa ana ki tenei waahanga.

Ko te mea e toe ana ko te hanga i te hinonga e rite ana ki te paataka raraunga. Ko te tikanga heke mo enei kaupapa. Hei waihanga i te hekenga i runga i nga huringa o nga tauira, me whakahaere e koe te whakahau npm run migration:generate -- CreateUserTable:

taitara kaipahua

$ npm run migration:generate -- CreateUserTable
Migration /home/dmitrii/projects/nest-rest/migrations/1563346135367-CreateUserTable.ts has been generated successfully.
Done in 1.96s.

Kaore matou i tuhi a-ringa i te hekenga, he mea makutu nga mea katoa. Ehara ianei tenei i te merekara! Heoi, ehara i te mea ko tera anake. Me titiro ki te konae hekenga i hanga:

1563346135367-CreateUserTable.ts

import {MigrationInterface, QueryRunner} from "typeorm";
export class CreateUserTable1563346816726 implements MigrationInterface {
public async up(queryRunner: QueryRunner): Promise<any> {
await queryRunner.query(`CREATE TABLE "user" ("id" SERIAL NOT NULL, "email" character varying NOT NULL, "username" character varying NOT NULL, "displayName" character varying, CONSTRAINT "UQ_e12875dfb3b1d92d7d7c5377e22" UNIQUE ("email"), CONSTRAINT "UQ_78a916df40e02a9deb1c4b75edb" UNIQUE ("username"), CONSTRAINT "PK_cace4a159ff9f2512dd42373760" PRIMARY KEY ("id"))`);
}
public async down(queryRunner: QueryRunner): Promise<any> {
await queryRunner.query(`DROP TABLE "user"`);
}
}

Ka kite koe, ehara i te mea ko te tikanga mo te tiimata i te heke i hanga aunoa, engari ko te tikanga hoki mo te huri whakamuri. Tino pai!
Ko nga mea e toe ana ko te whakaputa i tenei hekenga. Ka mahia tenei ma te whakahau e whai ake nei:

npm run migration:run.

Koia, inaianei kua heke nga huringa aronuinga ki te papaunga raraunga.
I muri mai, ka hangaia e matou he ratonga hei kawenga mo te mahi tahi me nga kaiwhakamahi me te tuku iho TypeOrmCrudService. Ko te putunga o te hinonga paanga me tuku ki te tawhā o te kaihanga matua, i roto i ta maatau keehi User putunga.

users.service.ts

import { Injectable } from '@nestjs/common';
import { TypeOrmCrudService } from '@nestjsx/crud-typeorm';
import { User } from '../../entities/user.entity';
import { InjectRepository } from '@nestjs/typeorm';
import { Repository } from 'typeorm';
@Injectable()
export class UsersService extends TypeOrmCrudService<User>{
constructor(@InjectRepository(User) usersRepository: Repository<User>){
super(usersRepository);
}
}

Ka hiahia matou i tenei ratonga i roto i te kaiwhakahaere users. Hei waihanga i te kaiwhakahaere, patohia te papatohu nest g controller users/controllers/users

nest g kaiwhakahaere kaiwhakamahi/kaiwhakahaere/kaiwhakamahi

dmitrii@dmitrii-HP-ZBook-17-G3:~/projects/nest-rest git:(master*)$ nest g controller users/controllers/users
CREATE /src/users/controllers/users/users.controller.spec.ts (486 bytes)
CREATE /src/users/controllers/users/users.controller.ts (99 bytes)
UPDATE /src/users/users.module.ts (188 bytes)

Ka whakatuwherahia tenei kaiwhakahaere ka whakatika hei taapiri i tetahi makutu iti kohangajsx/crud. Ia akomanga UsersController Me taapiri he whakapaipai penei:

@Crud({
model: {
type: User
}
})

Crud he whakapaipai hei taapiri atu ki te kaiwhakahaere nga tikanga e tika ana mo te mahi me te tauira. Ko te momo tauira ka tohua ki te mara model.type whirihoranga whakapaipai.
Ko te mahi tuarua ko te whakatinana i te atanga CrudController<User>. He penei te ahua o te waehere kaiwhakahaere "Kua whakahiato":

import { Controller } from '@nestjs/common';
import { Crud, CrudController } from '@nestjsx/crud';
import { User } from '../../entities/user.entity';
import { UsersService } from '../../services/users/users.service';
@Crud({
model: {
type: User
}
})
@Controller('users')
export class UsersController implements CrudController<User>{
constructor(public service: UsersService){}
}

Na ko te katoa! Inaianei kei te tautoko te kaiwhakahaere i te huinga katoa o nga mahi me te tauira! Kaua e whakapono ki ahau? Me whakamatau ta maatau tono ki te mahi!

Te Waihanga Hōtuhi Uiui ki TestMace

Hei whakamatautau i ta maatau ratonga ka whakamahia e matou he IDE hei mahi me te API TestMace. He aha TestMace? Ka whakatauritea ki nga hua rite, kei a ia nga painga e whai ake nei:

• mahi kaha me nga taurangi. I tenei wa, he maha nga momo taurangi, he waahi motuhake o ia waahanga: nga taurangi kua hangaia, nga taurangi hihiri, nga taurangi taiao. Ko ia taurangi no tetahi node me te tautoko mo te tikanga tuku iho;
• He ngawari te hanga tuhinga me te kore he hotaka. Ka korerohia tenei i raro nei;
• he whakatakotoranga ka taea e te tangata te panui e taea ai e koe te tiaki i te kaupapa i roto i nga punaha whakahaere putanga;
• te whakaoti-aunoa, te miramira wetereo, te miramira uara taurangi;
• Tautoko whakaahuatanga API me te kaha ki te kawemai mai i te Swagger.

Me timata ta tatou tūmau me te whakahau npm start ka ngana ki te uru ki te rarangi o nga kaiwhakamahi. Ko te rarangi o nga kaiwhakamahi, ma te whakatau i ta maatau whirihoranga kaiwhakahaere, ka taea te tiki mai i te url localhost:3000/kaiwhakamahi. Me tuku tono ki tenei url.
Whai muri i te whakahaere i te TestMace ka kite koe i tetahi atanga penei:

Kei te taha maui o runga he rakau kaupapa me te kopuku pakiaka kaupapa. Me ngana ki te hanga i te tono tuatahi kia whiwhi rarangi kaiwhakamahi. Mo tenei ka hanga e matou TonoStep kōpuku Ka mahia tenei i roto i te tahua horopaki o te node Kaupapa Tāpiri kōpuku -> RequestStep.

I roto i te mara URL, whakapiri localhost:3000/kaiwhakamahi ka whakahaere i te tono. Ka whiwhi tatou i te waehere 200 me te raupapa kau i roto i te tinana whakautu. Kei te maarama, kaore ano matou kia taapiri tetahi.
Me hanga he tuhi tuhi ka whakauru i nga waahanga e whai ake nei:

1. te hanga i tetahi kaiwhakamahi;
2. tono mo te id o te kaiwhakamahi hou i hanga;
3. te whakakore i te id kaiwhakamahi i hangaia i te taahiraa 1.

Na, me haere. Mo te watea, me hanga he node penei kōpaki. Ko te tikanga, he kōpaki noa tenei ka tiakina e matou te tuhinga katoa. Hei waihanga i te kōpuku Kōpaki, tīpako Kaupapa mai i te tahua horopaki o te kōpuku Tāpiri kōpuku -> Kōpaki. Karangatia te node taki-hanga. I roto i te node taki-hanga Me hanga ta tatou tono tuatahi ki te hanga i tetahi kaiwhakamahi. Karangatia te node katahi ano ka hanga hanga-kaiwhakamahi. Arā, i tenei wa ka penei te ahua o te hierarchy node:

Me haere ki te ripa tuwhera hanga-kaiwhakamahi kōpuku. Whakauruhia nga tawhā e whai ake nei mo te tono:

• Momo tono - POST
• URL - localhost:3000/kaiwhakamahi
• Tinana - JSON me te uara {"email": "[email protected]", "displayName": "New user", "username": "user"}

Kia tutuki tenei tono. E kii ana ta maatau tono kua hangaia te rekoata.

Ana, kia tirohia tenei meka. Kia taea ai te mahi me te id o te kaiwhakamahi i hanga i roto i nga waahanga ka whai ake, me tiaki tenei tawhā. He tino pai te miihini mo tenei. taurangi hihiri. Me whakamahi ta tatou tauira ki te titiro me pehea te mahi tahi me ratou. I roto i te ripa poroporoaki o te whakautu, i te taha o te node id i te tahua horopaki, tohua te mea Tautapa ki te taurangi. I roto i te pouaka korero me whakarite e koe nga tawhā e whai ake nei:

• Node — ko wai o nga tupuna hei hanga i tetahi taurangi hihiri. Me whiriwhiri tatou taki-hanga
• Ingoa ingoa — te ingoa o tenei taurangi. Me waea atu userId.

Anei te ahua o te mahi hanga taurangi hihiri:

Inaianei, ia wa ka mahia tenei patai, ka whakahouhia te uara o te taurangi hihiri. Na no te mea Ko nga taurangi hihiri e tautoko ana i te tikanga o te tuku iho hierarchical, taurangi userId ka waatea i roto i nga uri taki-hanga node o tetahi taumata kohanga.
Ka whai hua tenei taurangi ki a tatou i te tono e whai ake nei. Ara, ka tono matou i te kaiwhakamahi hou i hanga. I te mea he tamaiti node taki-hanga ka hanga e matou he tono tirohia-mehemea kei te noho me te tawhā url rite localhost:3000/users/${$dynamicVar.userId}. Tirohia te hoahoa ${variable_name} kei te whiwhi tenei i te uara o te taurangi. No te mea He taurangi hihiri ta matou, no reira me uru koe ki te ahanoa $dynamicVar, ara te uru katoa ki tetahi taurangi hihiri userId ka penei te ahua ${$dynamicVar.userId}. Kia mahia te tono me te whakarite kia tika te tono o nga raraunga.
Ko te taahiraa whakamutunga ko te tono kia mukua. E hiahia ana matou ehara i te mea anake ki te tirotiro i te mahi o te whakakorenga, engari ano hoki, ki te korero, ki te horoi i muri ia tatou i roto i te papaarangi, no te mea He ahurei te imeera me te ingoa ingoa ingoa. Na, i roto i te haki-waihanga node ka hangaia e matou he tono muku-kaiwhakamahi me nga tawhā e whai ake nei

• Momo tono - MUKU
• URL - localhost:3000/users/${$dynamicVar.userId}

Kia whakarewa tatou. Ka tatari tatou. He pai ki a matou te hua)

Inaianei ka taea e taatau te whakahaere i tenei tuhinga katoa i nga wa katoa. Hei whakahaere i te tuhinga me whiriwhiri koe mai i te tahua horopaki taki-hanga tūemi kōpuku Whakahaere.

Ko nga pona kei roto i te tuhinga ka mahia tetahi ki tetahi
Ka taea e koe te tiaki i tenei tuhinga ki to kaupapa ma te whakahaere Kōnae -> Tiaki kaupapa.

mutunga

Ko nga ahuatanga katoa o nga taputapu e whakamahia ana kaore i uru ki te whakatakotoranga o tenei tuhinga. Ko te take matua - te putea kohangajsx/crud - ka noho hurahia nga kaupapa e whai ake nei:

• te whakamana ritenga me te whakarereketanga o nga tauira;
• te reo patai kaha me te pai o te whakamahi i mua;
• te tautuhi ano me te taapiri i nga tikanga hou ki nga kaiwhakahaere crud;
• te tautoko whakakake;
• whakahaere keteroki.

Heoi, ahakoa ko nga mea e whakaahuatia ana i roto i te tuhinga ka nui ki te maarama he aha te anga hinonga penei i a NestJS he taputapu mo te tauira tono tere. A he IDE hauhautanga penei TestMace ka taea e koe te pupuri i te tere kua whakaritea.

Waehere puna mo tenei tuhinga, me te kaupapa TestMace, e wātea ana i roto i te putunga https://github.com/TestMace/nest-rest. Hei whakatuwhera kaupapa TestMace mahi noa i roto i te taupānga Kōnae -> Tuwhera kaupapa.

Source: will.com